ВАРОЧНЫЙ АППАРАТ С ИНДУКЦИОННЫМ НАГРЕВОМ

... 1. Варочный аппарат с индукционным нагревом, содержащий верхнюю плиту, имеющую первую поверхность и вторую поверхность, причем первая поверхность верхней плиты предназначена для размещения загружаемой кастрюли, при этом верхняя плита выполнена с возможностью пропускания инфракрасного излучения, нагревательную катушку для индукционного нагрева загружаемой кастрюли, инвертор для подачи тока высокой частоты на нагревательную катушку, детектор инфракрасного излучения, расположенный под второй поверхностью верхней плиты, и предназначенный для определения инфракрасного излучения от загружаемой кастрюли, первый термодетектор, предназначенный для определения температуры загружаемой кастрюли на основании выходного сигнала детектора инфракрасного излучения, контроллер нагрева, предназначенный для определения того, что температура загружаемой кастрюли становится стабильной, если удовлетворяется условие, в соответствии с которым изменение температуры, определяемое первым термодетектором, находится ...

INDUKTIONSHEIZGERAET

INDUKTIONSHEIZGERÄT

INDUKTIONSKOCHGERAET MIT EINEM LASTDETEKTOR

Verfahren zur adaptiven Regelung eines Induktionserwärmungs- oder Plasmaprozesses

Verfahren zur adaptiven Regelung eines Induktionserwärmungs- oder Plasmaprozesses, mit den Verfahrensschritten: a. Bestimmung einer Regelstrecke (14), b. Definition eines mathematischen Modells (20) der Regelstrecke (14), wobei das mathematische Modell (20) zumindest eine Induktivität, eine Kapazität und/oder einen Wirkwiderstand aufweist, c. Ermitteln von Regelstreckenparametern, d. Anpassen des mathematischen Modells (20) anhand der Regelstreckenparameter, e. Ermitteln von Reglerparametern anhand des angepassten mathematischen Modells (20) der Regelstrecke (14), f. Anpassen des Reglers (11) anhand der ermittelten Reglerparameter.

INDUKTIONSHEIZGERAET

Inverter control circuit used in HF heating device

An inverter control circuit for HF heating has a detector 300 for the current entering the inverter 200 from a mains-fed rectifier 100 with a microcomputer 400 receiving the detector's output signal. The microcomputer then gives out first and second ON signals as well as a timing signal to control the inverter's switching. There is a detector 500 for the inverter input voltage and which gives a resonance detection signal depending on a given time lag setting signal. The latter is given by a driver control circuit 600, which also gives first and second control signals in response to the resonance signal and the three microcomputer output signals. The inverter driver 700 gives the driver signals to the inverter in response to the driver control signals.

INDUKTIONSKOCHGERAET

Bestimmen einer Temperatur mittels eines Infrarotsensors

Ein Verfahren dient zum Bestimmen einer Temperatur mittels mindestens eines oberhalb eines Kochfelds (2) angeordneten und in Richtung des Kochfelds (2) ausgerichteten Infrarotsensors (7), wobei eine Garguttemperatur (T) von auf dem Kochfeld (2) abgestelltem Gargut (G) bestimmt wird. Ein Verfahren dient zum Regeln einer Garguttemperatur (T) von auf einem Kochfeld (2) abgestelltem Gargut (G), wobei die Garguttemperatur (T) bestimmt wird und die bestimmte Garguttemperatur (T) als eine Grundlage für einen Energieeintrag in das Gargut (G) verwendet wird, wobei die Garguttemperatur (T) mittels des Verfahrens zum Bestimmen einer Temperatur bestimmt wird. Ein System (2, 3) ist mit einem Kochfeld (2) und einer oberhalb des Kochfelds (2) angeordneten Temperatur-Bestimmungseinrichtung (3) mit mindestens einem in Richtung des Kochfelds (2) ausgerichteten Infrarotsensor (7) ausgerüstet, wobei die Temperatur-Bestimmungseinrichtung (3) mit dem Kochfeld (2) kommunikativ koppelbar (9, 10) ist und eine Garguttemperatur-Bestimmungseinrichtung ...

Induktionsheizeinrichtung und zugehöriges Betriebs- und Topferkennungsverfahren

Die Erfindung betrifft ein Verfahren zum Betrieb einer Induktionsheizeinrichtung, ein Verfahren zur Topferkennung für eine Induktionsheizeinrichtung und eine Induktionsheizeinrichtung. Bei dem Verfahren zum Betrieb der Induktionsheizeinrichtung wird ein Tiefpunkt eines Schwingungszyklus an einem Verbindungsknoten (N1) eines Parallelschwingkreises und eines Schaltmittels (24) ermittelt, eine Tiefpunktspannung am Tiefpunkt des Schwingungszyklus ermittelt und das Schaltmittel (24) im Tiefpunkt des Schwingungszyklus für eine Einschaltzeitdauer eingeschaltet, die in Abhängigkeit von der Tiefpunktspannung derart bestimmt wird, dass eine Tiefpunktspannung in nachfolgenden Schwingungszyklen einen vorgebbaren Maximalwert nicht überschreitet.

INDUKTIONSERWÄRMUNGSVORRICHTUNG

Verfahren und Anordnung zur Leistungsversorgung einer Induktionsheizeinrichtung

Zur Erhöhung der Leistung einer Induktionsheizeinrichtung (L) bzw. zur Vermeidung von Netzrückwirkungen bei der Ansteuerung dieser können bei einer Halbbrücken-Ansteuerung entweder die Pulsweiten (G1, G2) der beiden Schaltmittel (T1, T2) unsymmetrisch gemacht werden bis zur Halbzeit einer Halbwelle. Alternativ kann eine Totzeit (H1, H2) zwischen den Pulsweiten (G1, G2) verlängert werden. Dies erfolgt vorteilhaft stufenlos und kontinuierlich. So wird im Verlauf einer Halbwelle die Leistung bei unveränderter Arbeitsfrequenz reduziert und ein Induktorstrom (I_L) weist nahezu ideale Sinusform auf.

Determining a characteristic of a cooking appliance with a key

INDUCTION HEATING APPARATUS WITH PROTECTIVE CIRCUIT ARRANGEMENT

... 1413219 Inverting circuits for inductively heated devices MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 13 Nov 1973 [15 Nov 1972 16 Nov 1972 17 Nov 1972 20 Nov 1972 10 Aug 1973] 52569/73 Headings H2H and H2F An induction heating device such as a cooking apparatus comprises an inverter fed from an A.C. source by way of a full wave rectifier, the heating device being energized by the output from the inverter, the inverter including a gatecontrolled semi-conductor device and being provided with protective devices to prevent damage which would occur to heavy current surges at switch on and overload currents. An electric cooker comprises an induction heating coil 12 energized by an inverter having an inductor 11 and a capacitor 10 forming a circuit which is set into resonance by the firing of a thyristor 7 paralleled by an oppositely poled diode 8, the inverter being supplied from an A.C. source 1 with unfiltered unidirectional current by way of a full wave rectifier 2. A circuit 14 is provided for ...

INDUCTION HEATING APPARATUS

INDUCTION HEATING OF COOKER HOT PLATES

An inverter bridge of MOS technology transistors applies a series of high frequency power pulses to a disc coil in an electrically-heating of a cooker plate in order to heat a ferromagnetic container on the plate. The transistorized inverter bridge is activated by a control circuit which adjusts the triggering moment of each leg of the transistor bridge to the inductive recovery times of the disc coil and inhibits the functioning thereof in the absence of ferromagnetic load, i.e. container, on the plate. In this manner, the plate is self-igniting when a ferromagnetic container is placed thereon, thereby substantially reducing the electric power consumed in use. The control circuit for activating the transistor bridge is advantageously incorporated in a single integrated circuit in order to reduce maximumly the wiring and cost of assembly.

HIGH-FREQUENCY HEATING APPARATUS HAVING DIGITAL CONTROLLED INVERTER

INDUCTION HEATED COOKING APPARATUS

SMALL LOAD DETECTION BY COMPARISON BETWEEN INPUT AND OUTPUT PARAMETERS OF AN INDUCTION HEAT COOKING APPARATUS

Cooking apparatus, controller and method for controlling a cooker

Disclosed is a cooking apparatus, a controller and a method for controlling a cooker such as an induction hob. The method includes reading a time of day cooking completion request value provided by a user interface of a controller unit that controls the cooker. An earliest cooking start time value is assigned with a current time of day value provided by the clock of the controller unit and the controller unit determines a maximum cooking time value based on the earliest cooking start time value and the time of day cooking completion request value. The controller unit then processes the maximum cooking time value and a selected cooking profile instruction set read from a controller unit memory to determine a required cooking profile instruction set. The required cooking profile instruction set includes driver output instructions for controlling a load driver of the cooker.

ELECTROMAGNETIC COOKING APPARATUS

LOAD RESPONSIVE TRIGGER INTERVAL CONTROL FOR INDUCTION HEATING APPARATUS HAVING INVERSELY PARALLEL CONNECTED THYRISTORS

INDUCTION HEATING CONTROL APPARATUS

COOK MECHANISM FOR THE ELECTRICALLY INDUCTIVE HEATING OF A COOK CONTAINER

INDUCTION COOK FIELD

INDUCTION HEATING COOK MECHANISM

PROCEDURE FOR THE CONTROLLING OF INDUCTION COOK EQUIPMENT AND INDUCTION COOK EQUIPMENT

INDUKTIONSERWARMUNGSVORRICHTUNG

INDUCTION HEATER

PROCEDURE FOR THE CURRENT SUPPLY WITH THE OUTPUT OF TWO INDUCTORS AND COOK EQUIPMENT, WITH WHICH THIS PROCEDURE IS CONVERTED

SILL PLATE COOK FIELD

COOK EQUIPMENT

INDUCTION HEATING MECHANISM

HEATER MECHANISM FOR A LAMINAR HEATING WITH INDUCTION HEATING ELEMENTS

COOK SYSTEM

Pressing element and induction hob comprising a pressing element

The invention relates to a pressing entity (1) for pressing an induction heating unit (10) against a hob plate, the pressing entity (1) comprising: − a spring element (2); − a coupling element (3), said coupling element (3) being adapted to detachably couple the pressing entity (1) with the induction heating unit (10); wherein the coupling element (3) comprises a spring coupling portion (3.1) adapted to receive the spring element (2), said spring coupling portion (3) being adapted to receive the spring element (2) such that a portion of the spring element (2) protrudes out of the coupling element (3).

Induction heating apparatus

INDUCTION HEATING APPARATUS

Induction driven power supply for circuits accompanying portable heated items

Method and device for determining the temperature of a cooking vessel

A cooking surface with controls

ROASTING DEVICE

Cooktop

The present disclosure describes an induction cooker (100) having an induction element (104) for heating a cooking vessel (106) containing a food substance. The induction cooker (100) also has a temperature sensor (120) for measuring a temperature of the cooking vessel (106) or food substance. A memory is also includes having stored therein a cooking sequence. The cooking sequence includes sequential stages, each stage being defined by a set temperature to be reached by the cooking vessel (106) or food substance, a set maximum power applied to the induction element (104) during heating and a time associated with the stage. A controller is included for retrieving the cooking sequence and controlling the induction element (104) based upon the cooking sequence and the temperature measured.

Cooktop

A cooktop appliance apparatus for use in cooking. The appliance including a controller for controlling operation of the fan system based on an average power level supplied to a heating system, and based on a temperature measure associated with the one or more subsystems. The appliance including a hardware-implemented safety module comprising two or more temperature actuated safety circuits. The appliance including a user interface adapted to receive a user input with respect to operating parameters of the heating system, the user input including a heating control mode and a set temperature. The appliance including a controller adapted to identify a cooking vessel on an induction cooktop.

Heating element control circuit

A power control circuit includes first and second electrical power terminals connected across a source of electrical power. A heating element is connected to the first terminal. A heating element controller is connected in series with the heating element, between the heating element and the second terminal. The controller is configured to control a temperature level of the element, and includes a control input configured to receive a range of temperature settings, and an OFF command for the element. The controller includes an ON/OFF switch to disconnect the element from the second terminal, and a temperature level control switch to intermittently connect/disconnect the element to the second terminal. A jumper wire series-connects the ON/OFF switch to the temperature level control switch. The ON/OFF switch, the jumper wire, the temperature level control switch, and the element are electrically connected in series.

Cooking device for a cooking container

Method for calibrating a power control loop of an induction hob

The invention relates to a method for calibrating one or at least two power control loops of an induction hob (1), the induction hob (1) comprising one or at least two power stages (10) including one or at least two induction elements (21) and one or at least two measurement units (12), the method comprising the steps of: − deriving one or at least two measurement values being indicative for the power transferred from the one or at 10 least two power stages (10) to one or at least two reference loads by means of said one or at least two measurement units (12); − storing one or at least two correction values in one or at least two storage entities in order to modify measurement values provided by the one or at least two measurement units (12) based on the one or at least two correction values when operating the induction hob (1).

PROTECTIVE CIRCUIT FOR INDUSTOR HEATER

Method and device for determining the temperature of a cooking vessel

A METHOD FOR CONTROLLING THE INDUCTION HEATING SYSTEM OF A COOKING APPARATUS

A method for controlling an inductive heating system of a cooking hob provided with an induction coil, particularly for controlling it in connection with a predetermined working condition, comprises assessing the value of power absorbed by the system, measuring a temperature indicative of the thermal status of at least one element of the heating system, feeding the assessed power value to a computing model capable of providing an estimated value of temperature, comparing the measured temperature with the estimated temperature and tuning the computing model on the basis of such comparison.

METHOD FOR CONTROLLING AN INDUCTION HEATING SYSTEM OF A COOKING APPLIANCE

The invention relates to a method to estimate the temperature of a cooking utensil, and the temperature of contents within the utensil, placed on a cooktop having an induction coil. In an embodiment there is disclosed a method for controlling an induction heating system of a cooking appliance provided with an induction coil, particularly for controlling it in connection with a predetermined working condition, comprises measuring the value of one electrical parameter of the induction heating system, feeding a computing model with actual switching frequency signals in order to estimate a temperature indicative of the thermal status of the heating system and to provide an estimated value of said electrical parameter, and comparing the measured electrical parameter with the estimated one and tuning the computing model on the basis of such comparison.

COOKING DEVICE

A cooking device comprises: a top plate (2) upon which a container (3) is placed; heating devices (7, 8) which are below the top plate (2); electrodes (15, 16) which are provided on the bottom surface of the top plate (2), and comprise boil over detection units (18, 23) which are placed in the vicinity of the periphery of the top plate (2) which is located above the heating devices (7, 8), contact parts (21, 26) which supply alternating current for the boil over detection units (18, 23), and connectors (20, 25) which provide connections between the contact parts (21, 26) and one end of the boil over detection units (18, 23); an electrode capacitance detection device (13) which detects changes in capacitance of the boil over detection units (18, 23); and a control device (9) which controls the heating devices (7, 8) on the basis of changes in capacitance detected by the electrode capacitance detection device (13). The contact parts (21, 26) are provided on the front-surface side of the cooking ...

RESONANT FREQUENCY DETECTION FOR INDUCTION RESONANT INVERTER

An induction heating system includes an induction heating coil operable to inductively heat a load with a magnetic field, a detector for detecting a current feedback signal corresponding to a current flowing through the induction heating coil, and a controller for detecting a switching transient in the current feedback signal and determining a resonant frequency of the system based on a characteristic of the switching transient.

HIGH-FREQUENCY INDUCTION HEATING SYSTEM WITH CIRCUIT PROTECTIVE FEATURE

A high-frequency induction system can generally be achieved by detecting noise superimposed on AC power supply which might induce voltages exceeding the given break-down voltage of a switching device and in such cases by temporarily shutting off the power supply to the induction heating system. To implement this, a high-frequency induction heating system, according to the invention, is provided with a noise detector circuit connected to the output terminal of a rectifying circuit rectifying said input AC voltage. The noise detector is designed to detect noise pulses superimposed on an input AC voltage. The induction heating system of the present invention also includes means for disabling a switching device. The disabling means responds to detection of a noise pulse by the noise detector by disabling the switching device and whereby protects the circuit of the induction heating system.

CONTROLLABLE RECTIFIER CIRCUIT FOR A POWER SUPPLY

S01076 CONTROLLABLE RECTIFIER CIRCUIT FOR A POWER SUPPLY A controllable rectifier circuit which may be used in a power supply selectively produces a half-wave or a full-wave rectified signal. The rectifier circuit includes a pair of input terminals for receiving an AC signal and a bridge rectifier coupled to the input terminals and including a pair of output terminals across which a rectified AC signal is produced. The bridge rectifier comprises a first current path including a switchable rectifier for conducting positive half cycles of the AC signal and a second current path including a switchable rectifier for conducting negative half cycles of the AC signal. A pulse generator is supplied with reduced amplitude versions of the positive and negative half cycles of the AC signal, in sequence, to produce an output pulse when the reduced amplitude of the half cycle supplied thereto is less than a predetermined level. A non-reduced half cycle of the AC signal is selectively supplied to the ...

METAL BASE COOKWARE INDUCTION HEATING APPARATUS HAVING IMPROVED POWER SUPPLY AND GATING CONTROL CIRCUIT USING INFRA-RED TEMPERATURE SENSOR AND IMPROVED INDUCTION HEATING COIL ARRANGEMENT

COMPOSITE COOKING APPARATUS COMPRISING INDUCTION AND ELECTRIC HEATERS

A first casing provided with an induction coil and a top plate as a first heater at the top thereof and a second casing provided with an electric heater as a second heater at the top thereof are hinged by a shaft and hinges such that the second casing can be opened and closed with respect to the first casing and can be held upright when the casing is opened. The power supply to the induction coil and the electric heater is commonly performed by a power unit provided in the first casing.

INVERTER DEVICE FOR INDUCTION HEATING

This invention relates to an induction heating device making use of a bridge inverter and comprising a DC power source, a plurality of switching elements (6) and (7) forming a bridge inverter, and a circuit for detecting the turn-off of the switching elements (6) and (7). Generally, in the bridge inverter, because of the turn-off time of the switching elements (6) and (7), there is always the danger of the elements being simultaneously rendered conductive and thereby damaged. This invention eliminates this danger and greatly improves the reliability of the device. In the concrete, in order to detect the turn-off of the switching elements (6) and (7), an improved turn-off detection circuit is employed and an improved control circuit is installed to prevent the circuit from malfunctioning owing to external noise.

AC TO RF CONVERTER CIRCUIT FOR INDUCTION COOKING UNIT

TEMPERATURE CONTROL CIRCUIT

INDUCTION HEATING APPARATUS USING A PAIR OF INVERSELY PARALLEL ECTED GATE-CONTROLLED SWITCHING DEVICES

INDUCTION HEATING COOKING APPARATUS WITH A WATER-LEAKING PROOF TOP

SMALL LOAD DETECTION BY COMPARISON BETWEEN INPUT AND OUTPUT PARAMETERS OF AN INDUCTION HEAT COOKING APPARATUS

COOK TOP ASSEMBLY HAVING A MONITORING SYSTEM AND METHOD OF MONITORING A COOKING PROCESS

A cook top assembly includes a cooking surface. A monitoring system is configured to monitor and control a cooking process on the cooking surface. The monitoring system includes at least one temperature sensor configured to sense a first temperature change at the cooking surface. A controller operatively coupled to the temperature sensor is configured to receive from the temperature sensor a signal indicating the first temperature change and activate a timing module operatively coupled to the controller for a first predetermined time period based at least in part on the first temperature change sensed by the temperature sensor.

COOKING VESSEL WITH A THERMAL SENSOR

A cooking vessel with a thermal sensor is provided. A cooking apparatus (1000) includes a vessel (1002). The vessel (1002) has a bottom (1005), and a sidewall (1010) surrounding the bottom (1005) and extending upward from the bottom (1005) so as to form a fluid retaining interior region (1003). The sidewall (1010) terminates at a rim (1018). The vessel (1002) also includes a channel (1015) extending through a portion of the bottom (1005) and further extending upward into and through a portion of the sidewa1l (1010). The channel (1015) has an opening (1017) positioned in an external surface (1006) of the sidewall (1010). The cooking apparatus (1000) further includes a thermal sensor (1030) positioned within the channel (1015). The thermal sensor (1030) extends through the portion of the bottom (1005) and further extends upward into and through the portion of the sidewall (1010).

RFID-CONTROLLED SMART INDUCTION RANGE AND METHOD OF COOKING AND HEATING

... ²²²A system (20) and method for providing multiple cooking modes and an ability ²to automatically heat cooking vessels (28) and other objects using RFID ²technology, and an ability to read and write heating instructions and to ²interactively assist in their execution. An induction heating range (22) is ²provided with two antennas (54A, 54B) per hob (44), and includes a user ²interface display (62) and input mechanism (64). The vessel includes an RFID ²tag (24) and a temperature sensor (26). In a first cooking mode, a recipe is ²read by the range (22) and the range (22) assists a user in executing the ²recipe by automatically heating the vessel (28) to specified temperatures and ²by prompting the user to add ingredients.² ...

HEATING COOKER

The present invention provides a heating cooker wherein a plurality of IH coils (3) are provided under a top plate and heats an object to be heated by induction heating. An operation display unit (7) comprises a touch panel (5), displays information prompting an operation via the touch panel (5), and receives input of the operation via the touch panel. A control unit (202) controls the operation display unit (7) and a drive unit (203) in accordance with the operation of the operation display unit (7). The control unit (202) further sets a selection region on the touch panel (5) and a heating region on the top plate in accordance with a drag operation on the touch panel (5). The operation display unit (7) displays the selection region. The drive unit (203) drives one or more IH coils (3) corresponding to the heating region. Due to this configuration, it is possible to provide a more inexpensive heating cooker with which the degree of freedom pertaining to the position where an object to ...

LOW-PRESSURE COOKING METHOD AND COOKWARE VESSEL ADAPTED FOR THE SAME

Food stuffs are cooked at precise temperatures, which are optionally below 100 °C, in a vessel that is evacuated to exclude air, in which low pressure steam replaces the air. When a sufficient quantity of air is excluded and replaced with water vapor, the temperature of vapor is accurately measured inside the vessel below the lid to control the temperatures within about 1° C. Air is preferably excluded via a controlled heated process for a relatively short period of time at high temperature to generate steam, the temperature is lowered to condense water vapor upon which the lid will sealingly engage the rim of the vessel, forming a partial vacuum in the cooking vessel.

INDUCTION HEATING COOKING APPARATUS

An induction heating cooking apparatus includes a magnetic flux-shielding plate to restrain magnetic flux leakage from a heating coil and define a cooling air trunk, through which cooling air from a fan passes. An infrared sensor for detecting infrared rays emitted from a cooking container and a control circuit for controlling an output of a heating coil depending on an output from the infrared sensor are accommodated within the same space with respect to the magnetic flux-shielding plate to thereby enhance assemblage. Also, the infrared sensor is mainly cooled by cooling air passing through a cooling air trunk to thereby enhance the cooling efficiency of the infrared sensor and conduct correct temperature detection.

ELECTRIC HEATING APPLIANCE WITH AC-LINE FILTER WITH LOW LEAKAGE CURRENT

Provided is a power supply apparatus, and an appliance including the power supply apparatus, which includes a filter that attenuates a noise component of an AC electric current. The filter lacks a capacitor establishing a conductive path for conducting a high-frequency alternating signal, a leakage current, or both to a ground electrode. A rectifier is also included, and is disposed electrically between the filter and a load that is to be energized by operation of the power supply circuit. The rectifier converts the AC electric current into a rectified signal. The power supply apparatus also includes a grounding capacitor that establishes a capacitive, conductive path between an output of the rectifier and a ground electrode that is to be electrically connected to earth ground. The grounding capacitor is electrically separated from the filter by the rectifier, and extends electrically between the ground conductor and at least one of: (i) a positive DC bus conductor from the rectifier, and ...

Device for setting and indicating the power output of an electrical heat generator

COOK MECHANISM FOR THE INDUCTIVE HEATING OF A COOK CONTAINER.

Roasting equipment.

Circuit arrangement for an induction cooking appliance, method for operating the circuit arrangement for an induction cooking apparatus.

Die Erfindung betrifft eine Schaltungsanordnung für ein Induktionskochgerät und ein Induktionskochgerät mit einer solchen Schaltung, wobei die Schaltung einen Schwingkreis aufweist mit mindestens einer Induktionsspule (1) zur induktiven Beheizung eines Induktionskochgeschirrs und mindestens einer Kapazität (2), sowie ein variables Schaltungselement zur Variation der Induktivität und/oder der Kapazität des Schwingkreises. Das variable Schaltungselement ist vorzugsweise eine mit Gleichstrom steuerbare Drossel (7), und der Schaltkreis wird bevorzugt mit einer konstanten Frequenz betrieben. Schaltungsanordnung für ein Induktionskochgerät, Verfahren zum Betreiben der Schaltungsanordnung für ein Induktionsgerät.

Automatic adjustment of [...].

Es wird ein Kochfeld (10) mit zwei oder mehr Sensoren (12) zur Erfassung einer sich im Kochfeld ausbreitenden Welle beschrieben, wobei die Sensoren (12) mit einer Kochfeldsteuerung (16) verbunden sind, die zum Auffinden eines für einen Kochvorgang an einer Stelle des Kochfelds kennzeichnenden Signalverlaufs Signale von mindestens zwei Sensoren (12) in einem signalverarbeitenden Prozess verknüpft.

SWITCHING CONFIGURATION FOR INDUKTONSKOCHGERÄT, PROCEDURES FOR THE OPERATION OF THE SWITCHING CONFIGURATION AND THE INDUCTION COOK EQUIPMENT.

Die Erfindung betrifft eine Schaltungsanordnung für ein Induktionskochgerät und ein Induktionskochgerät mit einer solchen Schaltung, wobei die Schaltung einen Schwingkreis aufweist mit mindestens einer Induktionsspule (1) zur induktiven Beheizung eines Induktionskochgeschirrs und mindestens einer Kapazität (2), sowie ein variables Schaltungselement zur Variation der Induktivität und/oder der Kapazität des Schwingkreises. Das variable Schaltungselement ist vorzugsweise eine mit Gleichstrom steuerbare Drossel (7), und der Schaltkreis wird bevorzugt mit einer konstanten Frequenz betrieben.

INDUCTION COOK EQUIPMENT FOR TEMPERATURE-STEERED COOKING.

Die Erfindung betrifft ein Verfahren zur Ermittlung und Regelung der Temperatur eines Gegenstandes mit induktiven Eigenschaften, welcher mittels eines Induktionsgerätes induktiv erwärmt wird, wobei das Induktionsgerät eine Induktionsspule (3), Mittel zur Erzeugung eines Induktionsschwingkreises und ein oberhalb der Induktionsspule angeordnetes Auflageelement mit einer ersten Seite, welche als Auflagefläche für den Gegenstand dient, und einer zweiten Seite, welche zur Induktionsspule (3) hin gerichtet ist, enthält. An die zweite Seite ist wenigstens ein Temperatursensor (4) angebracht. Über Erfassungsmittel wird die Resonanzfrequenz des Induktionsschwingkreises gemessen und aus der gemessenen Resonanzfrequenz die Temperatur des Gegenstandes berechnet, wobei die Resonanzfrequenz über eine mathematische Funktion in einer Beziehung mit der Temperatur des Gegenstandes steht, und die Funktion durch Ermitteln von wenigstens zwei absoluten Temperatureichwerten des Gegenstandes bei jeweils unterschiedlichen ...

Induction cooking apparatus for temperature controlled cooking.

Die Erfindung betrifft ein Verfahren zur Ermittlung und Regelung der Temperatur eines Gegenstandes (5) mit induktiven Eigenschaften, welcher mittels eines Induktionsgerätes (1) induktiv erwärmt wird, wobei das Induktionsgerät (1) eine Induktionsspule (3), Mittel zur Erzeugung eines Induktionsschwingkreises und ein oberhalb der Induktionsspule (3) angeordnetes Auflageelement (2) mit einer ersten Seite, welche als Auflagefläche für den Gegenstand (5) dient, und einer zweiten Seite, welche zur Induktionsspule (3) hin gerichtet ist, enthält. An die zweite Seite ist wenigstens ein Temperatursensor (4) angebracht. Über Erfassungsmittel wird die Resonanzfrequenz des Induktionsschwingkreises gemessen und aus der gemessenen Resonanzfrequenz die Temperatur des Gegenstandes (5) berechnet, wobei die Resonanzfrequenz über eine mathematische Funktion in einer Beziehung mit der Temperatur des Gegenstandes (5) steht, und die Funktion durch Ermitteln von wenigstens zwei absoluten Temperatureichwerten des ...

induction cook system with temperature control.

Das Induktionskochsystem gemäss der Erfindung besteht aus einem speziellen Kochgeschirr (2) in dessen Boden eine Temperaturerfassungseinheit (3) untergebracht ist und einer im Kochfeld untergebrachten Elektronik (4), die in der Lage ist, das drahtlos gesendete Signal zu empfangen und als Führungsgrösse einer temperaturgeführten Leistungsregelung zu benutzen. Das vorgestellte Induktionskochsystem mit Temperaturregelung ist ein System, welches sich durch höchste Energieeffizienz, hohe Betriebssicherheit, leichte Bedienung und unbegrenzte Design auszeichnet.

ИНДУКЦИОННЫЙ ЭЛЕКТРОНАГРЕВАТЕЛЬ

АППАРАТ ДЛЯ ИЗГОТОВЛЕНИЯ ПОПКОРНА С ИНДУКЦИОННЫМ НАГРЕВОМ

Изобретение относится к аппарату для изготовления попкорна, который содержит корпус, емкость для нагревания кукурузы и жира, которые подаются в емкость, с образованием попкорна, при этом для опорожнения емкость выполнена с возможностью поворота относительно корпуса, а также систему индукционного нагрева, которая содержит расположенную под емкостью индукционную обмотку для создания высокочастотного сменного магнитного поля. Согласно изобретению, индукционная обмотка выполнена с возможностью поворота вместе с емкостью.

INDUCTION ELECTRIC HEATER

Electric cooker and heating control device of electric cooker

Method for controlling a cooking appliance with an external control device, cooking appliance and system

Induction heater

Ultrasonic electromagnetic cooking tool

Cooking utensil and cooking utensil's electromagnetic heating device

Cooker

Apparatus and method for measuring the temperature on an induction heating apparatus

An electric cooking area (11) is provided with a containing part (13) which is special for cooker (26) and is made of glass-ceramic and bends downwards. An induction coil (17) which is shaped correspondingly on a coil rack (20) is positioned below the containing part (13). A temperature sensor (22) is configured on the outer margin of induction coil (17) with a mode that the temperature sensor (22) directly clings to containing part (13) for directly detecting the temperature.

Electromagnetic heating system and its control method and device

Hob with free configurable heating array and touchscreen control, method for operating a hob with free configurable heating array and touchscreen control and computer program product

Induction heating furnace stove surface

Cooking device

A cooking device in which key operation is easy and convenient. The cooking device has on its upper surface an operation section (7a, 8a) and a display section (7b, 8b). The operation section (7a, 8a) has a mode selection key (21) for selecting one of control modes, output increase/decrease keys (22, 23) for increasing and decreasing a set output and a set temperature, and time increase/decrease keys (24, 25) for increasing and decreasing a time in which heating is performed by using a timer. The mode selection key (21) and the time increase/decrease keys (24, 25) are separated into positionson both sides of the output increase/decrease keys (22, 23). The display section (7b, 8b) includes a numeral display section (26) for displaying by means of a numerical value a set value set by the selected control mode, an output display section (27) for displaying a set output, and a mode display section (28) for displaying a cooking mode selected by the mode selection key. The numeral display section ...

Heating systems and methods

Heating cooking device

Apparatus, system, method and computer program product for precise multi-stage programmable induction cooktop

Embodiments of an exemplary induction cooktop apparatus or system, may include an induction cooking unit; an interface adapted to receive, store, and execute a plurality of instructions of a multistage programmable recipe using said induction cooking unit; a power supply adapted to be coupled to a power source; a controller coupled to said power supply, said interface, and said induction cooking unit adapted to control said induction cooking unit according to said plurality of instructions of said multistage programmable recipe. An embodiment may include a system, method, and computer program product comprising: an induction cooking unit; receiving at an interface a plurality of instructions of a multistage programmable recipe; storing instructions in a memory; executing instructions in a controller coupled to the memory and induction cooking unit, so as to control the induction cooking unit in accordance with instructions of the multistage programmable recipe.

Cooking device

The cooking device includes a top plate 2 on which containers 30 are to be placed, heating devices 5 L, 5 R provided under the top plate 2 , electrodes 15, 16, 17 provided on a lower surface of the top plate 2 , capacitance detection devices 18, 19, 20 for detecting changes in capacitance of the electrodes 15, 16, 17 , and a boil over determination device 31 for determining a liquid boiled over from the containers 30 on the basis of the changes in capacitance detected by the capacitance detection devices 18, 19, 20 in heating operations of the heating devices 5 L, 5 R. The electrodes 15, 16, 17 have a plurality of arc-shaped detection parts 15 a, 16 a, 17 a provided along periphery of each of the heating devices 5 L, 5 R.

Utensil quality feedback for induction cooktop

Methodology, apparatus and computer programming are provide that permit an induction cooking appliance to evaluate a utensil for use with the appliance. A user may manually initiate an evaluation that will prompt the user to place a utensil on the appliance for evaluation. An evaluation is made based on differences between the expected energy and actual energy delivered. A score related to suitability for use of the utensil may then be displayed to the user.

System and method for detecting vessel presence and circuit resonance for an induction heating apparatus

Systems and methods for detecting vessel presence and circuit resonance for an induction heating apparatus are disclosed. A detector circuit generates an output signal based on a feedback signal corresponding to a signal, such as current, flowing through an induction heating coil. The output signal has a duty cycle corresponding to the proximity of operating frequency of the induction heating apparatus to resonance. Changes in the duty cycle of the output signal can be monitored to determine the presence or absence of a vessel on the induction heating coil.

Cooking Hob Wih Rotary Blade Driving Means and Assembly Comprising a Cooking Hob and Cooking Vessel With Rotary Blades

The cooking hob ( 1 ) comprises a support plate ( 2 ) of glass or glass ceramic, rotary blade driving means ( 32 ) comprising a lower magnetic coupling member ( 5 ) rotatably arranged below the support plate ( 2 ) and a drive motor ( 6 ) operatively connected for rotating it, and position changing means ( 33 ) for moving the lower magnetic coupling member ( 5 ) between an operative position, in which the lower magnetic coupling member ( 5 ) is close enough to the support plate ( 2 ) to magnetically transmit torque to an upper magnetic coupling member ( 54 ) connected to rotary blades ( 53 ) installed in a cooking vessel ( 50 ) located on the support plate ( 2 ), and an inoperative position, in which the lower magnetic coupling member ( 5 ) is far from the support plate ( 2 ).

INDUCTION-HEATING COOKER

An induction-heating cooker includes an infrared sensor for detecting infrared rays emitted from a cooking container, a scorching detecting portion for outputting, when a temperature of the cooking container increases from a first set temperature and exceeds a second set temperature, scorching detection information based on infrared detection information of the infrared sensor in a heating mode in which a power can be set, and a loading detecting portion for detecting addition of a load such as, for example, a material to be cooked based on a change of the infrared detection information. Even if the scorching detecting portion outputs the scorching detection information before a cooking time measured from the start of a heating operation reaches a first set time, a controller continues the heating operation. If the loading detecting portion detects that the load has been added, the measured cooking time is cleared and measurement thereof is restarted. 1. An induction-heating cooker comprising:a top plate adapted to place a cooking container thereon;an inverter circuit disposed below the top plate and having a heating coil to heat the cooking container;an infrared sensor disposed below the top plate to detect infrared rays that are emitted from a bottom surface of the cooking container and pass through the top plate, the infrared sensor outputting infrared detection information corresponding to a temperature of the bottom surface of the cooking container;a scorching detecting portion operable to detect scorching, in which a material to be cooked has burnt and stuck to the bottom surface of the cooking container, based on the infrared detection information, the scorching detecting portion outputting scorching detection information;an output setting portion operable to select one of a plurality of different power set values; and a first time measuring portion operable to measure a cooking time from the start of heating by the inverter circuit; and', 'a loading ...

Method for Heating a Cooking Vessel with an Induction Heating Device and Induction Heating Device

A method for heating a cooking vessel utilizing an induction heating device is provided. According to various aspects, the induction heating device includes a resonant circuit with an induction heating coil. A specified amount of energy may be supplied to the cooking vessel with the induction heating device depending on a heating power level selected by a user and/or on a cooking vessel type selected by the user. A parameter value of the resonant circuit which is dependent on a temperature of the cooking vessel, in particular of the bottom of the cooking vessel, may be determined and stored. The parameter value may be regulated to a setpoint which is dependent on the stored parameter value. 1. A method for heating a cooking vessel utilizing an induction heating device , the method comprising:supplying a specified amount of energy to the cooking vessel from the induction heating device comprising a resonant circuit and an induction heating coil, wherein the specified amount of energy depends on a heating power level selected by a user or a cooking vessel type selected by the user;determining and storing a parameter value of the resonant circuit, wherein the parameter value comprises a period duration of a natural-frequency resonant oscillation of the resonant circuit and wherein the parameter value being dependent on a temperature of a bottom of the cooking vessel; andregulating the parameter value to a setpoint which is dependent on the stored parameter value.2. The method of claim 1 , wherein the setpoint of the parameter value is equal to the stored parameter value.3. The method of claim 1 , further comprising outputting a signal to a user after supplying the specified amount of energy to the cooking vessel.4. The method of claim 1 , further comprising applying a specified heating power to the cooking vessel for a specified settling time after supplying the specified amount of energy to the cooking vessel and before determining and storing the parameter value of ...

COOKER HOB DEVICE

A cooker hob device, in particular to an induction cooker hob device, includes at least one switching unit and at least one control apparatus. In order to obtain a high degree of efficiency, the control apparatus is constructed to automatically prompt the at least one switching unit in at least one operating cycle to switch in at least one entire first time interval using at least one switching parameter having a value which changes at least substantially continuously. 113-. (canceled)14. A cooktop apparatus , comprising:at least one switching unit; andat least one control apparatus constructed to automatically prompt the at least one switching unit in at least one operating cycle to switch in at least one entire first time interval using at least one switching parameter having a value which changes at least substantially continuously.15. The cooktop apparatus of claim 14 , constructed in the form of an induction cooktop apparatus.16. The cooktop apparatus of claim 14 , wherein the control apparatus is constructed to render during the operating cycle the switching unit inactive during an entire inactivity time interval which is at least one millisecond long and which directly adjoins the first time interval.17. The cooktop apparatus of claim 16 , wherein the control apparatus is constructed to switch the switching unit during the operating cycle so that the value of the switching parameter changes substantially continuously in a second time interval that directly adjoins the inactivity time interval.18. The cooktop apparatus of claim 16 , further comprising at least one switching element connected to the switching unit in an electrically conducting manner in at least one operating state claim 16 , said control apparatus being constructed to switch the at least one switching element during the inactivity time interval.19. The cooktop apparatus of claim 14 , wherein the first time interval has an overall duration of around two milliseconds.20. The cooktop apparatus of ...

Multi Cooker

A cooking appliance and method, the appliance including: at least one temperature controlled heating element; a user interface for enabling a user to select a predefined subject for cooking; and a processor module that maintains a cooking data for cooking the selected predefined subject, and provides prompts to the user during cooking. The cooking data can be indicative of a cooking sequence or procedure. A cookware sensor can automatically identifying cookware being used. 1. A cooking appliance including:at least one temperature controlled heating element;a user interface for enabling a user to select a predefined subject for cooking; anda processor module that maintains a cooking data for cooking the selected predefined subject, and provides prompts to the user during cooking.2. The appliance according to claim 1 , wherein the cooking data is indicative of a cooking sequence or procedure.3. The appliance according to claim 2 , further including a cookware sensor for automatically identifying cookware being used.4. The appliance according to claim 3 , wherein the processor module claim 3 , upon identification of the cookware claim 3 , can adjust the respective cooking sequence.5. The appliance according to claim 1 , further including one or more temperature sensors.6. The appliance according to claim 5 , further including one or remote temperature sensors.7. The appliance according to claim 5 , wherein the processor module receives data from the temperature sensors indicative of the cooking temperature and can adjust the temperature controlled heating element according to the respective cooking sequence.8. The appliance according to claim 5 , wherein at least one temperature controlled heating element is an inductive coil element in a substantially rectangular configuration.9. The appliance according to claim 5 , wherein at least one temperature controlled heating element is an inductive coil element in a substantially oval configuration.10. The appliance according ...

Ir temperature sensor for induction heating of food items

A system and method for measuring the temperature of cookware to be induction-heated, using an infrared temperature sensor. An induction heater countertop may include a viewing window between the infrared temperature sensor and the cookware. Various algorithms may be applied to the sensed temperature, to adjust it to account for the presence of the viewing window, as well as variations in the cookware material.

INDUCTION HEATING APPARATUS

In an induction heating apparatus, an infrared-ray detection portion includes an infrared-ray reception portion adapted to receive infrared rays radiated from an object to be heated, an amplification portion adapted to amplify a detection signal from the infrared-ray reception portion to form an infrared-ray detection signal, and a temperature detection portion adapted to detect the temperature of the infrared-ray detection portion and to output the temperature to the control portion. The control portion is adapted to correct the infrared-ray detection signal to form an infrared-ray real signal, when the temperature of the infrared-ray reception portion is equal to or higher than a temperature to be detected by the infrared-ray detection portion, based on information about a negative signal superimposed on the infrared-ray detection signal outputted from the infrared-ray detection portion, which is negative-signal information about the negative signal with the reverse polarity from that of the infrared-ray detection signal. 1. An induction heating apparatus , comprising:a top plate for placing an object to be heated thereon;a heating coil adapted to generate an induction magnetic field for heating the object to be heated;a control portion adapted to control a high-frequency electric current applied to the heating coil for heating the object to be heated; andan infrared-ray detection portion which is adapted to detect an infrared ray radiated according to the temperature of the object to be heated and is adapted to output an infrared-ray detection signal according to infrared-ray energy of the detected infrared ray;wherein the infrared-ray detection portion includesan infrared-ray reception portion adapted to output a detection signal, when receiving an infrared ray radiated from the object to be heated,an amplification portion adapted to amplify the detection signal from the infrared-ray reception portion to form an infrared ray detection signal, anda temperature ...

Method for Transmitting Data, Induction Heating Device, Inductively Heatable Cooking Vessel and System

The disclosure herein provides for transmitting data from an induction heating device to a receiver of an inductively heatable cooking vessel. The induction heating device may include a resonant circuit with an induction heating coil and a converter that may generate a control voltage (UA) from an AC mains voltage (UN) with a control frequency. The resonant circuit may be applied with a control voltage in order to generate an alternating magnetic field for heating the cooking vessel. The data to be transmitted to the receiver may be encoded using the the control frequency.

Cook top appliance having spill and boil-over detection and response

A cook top appliance that can detect a food deposit on the cook top surface from a spill or boil-over is provided. A sensor zone that surrounds a heating source is used to detect the food deposit. Based on the detection of the food deposit, the cook top appliance can take one or more remedial actions to e.g., notify the user and/or modify the operation of the heating source. A variety of configurations of the sensor zone are described.

HEATING APPARATUS

A heating apparatus, in particular a hob heating apparatus, with at least one heating connection for at least one heating element and at least one frequency unit. In order to provide a heating apparatus of the generic type with relatively high operational reliability, it is proposed that the heating apparatus comprises a protective unit, which is provided for determining the existence of a conducting path between the frequency unit and the at least one heating connection. 110-. (canceled)11. A heating apparatus comprising:at least one heating connection for at least one heating element,at least one frequency unit, anda protective unit configured to determine whether a conducting path exists between the frequency unit and the at least one heating connection.12. The heating apparatus of claim 11 , wherein the heating apparatus is constructed as a cooktop heating apparatus.13. The heating apparatus of claim 11 , wherein the protective unit is configured to determine whether the conducting path exists based on a potential profile.14. The heating apparatus of claim 13 , wherein the protective unit is configured to analyze the potential profile at the at least one heating connection.15. The heating apparatus of claim 13 , wherein the protective unit is configured to determine whether the conducting path exists based on a frequency spectrum of the potential profile.16. The heating apparatus of claim 13 , wherein the protective unit comprises at least one high-pass filter configured to discriminate between potential profiles.17. The heating apparatus of claim 11 , wherein the protective unit comprises a current sensor configured to determine whether the conducting path exists.18. The heating apparatus of claim 11 , further comprising a control unit configured to receive connection information from the protective unit and to initiate at least one safety measure when a faulty conducting path exists.19. The heating apparatus of claim 11 , wherein a total number of heating ...

Power Converter with Over-Voltage Protection

In one implementation, a power converter with over-voltage protection includes a power switch coupled to a power supply through a tank circuit, and a control circuit coupled to a gate of the power switch. The control circuit is configured to turn the power switch OFF based on a current from the tank circuit, thereby providing the over-voltage protection to the power converter. In one implementation, the power converter is a class-E power converter. In one implementation, the control circuit is configured to sense the current from the tank circuit based on a voltage drop across a sense resistor coupled to the power switch. 1. A power converter with over-voltage protection , said power converter comprising:a power switch coupled to a power supply through a tank circuit;a control circuit coupled to a gate of said power switch;said control circuit being configured to turn said power switch OFF based on a current from said tank circuit, thereby providing said over-voltage protection to said power switch.2. The power converter of claim 1 , wherein said control circuit is configured to turn said power switch ON when a current through said power switch is substantially zero.3. The power converter of claim 1 , wherein said power converter is a class-E power converter.4. The power converter of claim 1 , wherein said control circuit is configured to sense said current from said tank circuit based on a voltage drop across a sense resistor coupled to said power switch.5. The power converter of claim 1 , wherein said power switch comprises a group IV insulated-gate bipolar transistor (IGBT).6. The power converter of claim 1 , wherein said power switch comprises a group IV bipolar junction transistor (BJT).7. The power converter of claim 1 , wherein said power switch comprises a group IV metal-oxide-semiconductor field-effect transistor (MOSFET).8. The power converter of claim 1 , wherein said power switch comprises a group III-V heterostructure field-effect transistor (HFET).9. ...

Induction heating system with self regulating power control

An induction heating system ( 46 ) for use in cooking with a positive feedback mechanism ( 54, 56 ) by means of which the power applied to a cooking utensil (52) can be varied in a wide range by changing its position above an induction coil ( 10 ), and by means of which the circuitry ( 54 ) is automatically protected against overheating.

INDUCTION COOKING HOB WITH A POT DETECTION DEVICE AND A METHOD FOR OPERATING AN INDUCTION COOKING HOB

An induction cooking hob with a pot detection device. The hob includes a cooking surface having cooking areas and/or cooking zones. The hob includes a user interface having a switch element and a display. The hob includes a control unit for controlling the cooking area(s) and/or the cooking zone(s). The pot detection device checks, if a cooking vessel is placed on the cooking area(s) and/or cooking zone(s). The control unit switches off the cooking area(s) and/or cooking zone(s), if the pot detection device has identified that the cooking vessel has been removed from the cooking area(s) and/or the cooking zone(s). The control unit stores a cooking mode of the cooking area(s) and/or cooking zone(s), which have been switched off. The display indicates that the cooking area(s) and/or cooking zone(s) have been switched off. The switch element restarts the cooking area(s) and/or cooking zone(s) in the same cooking mode. 1. An induction cooking hob with a pot detection device , wherein:{'b': 10', '14', '16', '18, 'the induction cooking hob includes a cooking surface () comprising one or more cooking areas (, ) and/or cooking zones (),'}{'b': '12', 'the induction cooking hob includes a user interface () comprising at least one switch element and at least one display,'}{'b': 14', '16', '18, 'the induction cooking hob includes a control unit for controlling the cooking area(s) (, ) and/or the cooking zone(s) (),'}{'b': 14', '16', '18, 'the pot detection device is provided for checking, if a cooking vessel is placed on the cooking area(s) (, ) and/or cooking zone(s) (),'}{'b': 14', '16', '18', '14', '16', '18, 'the control unit is provided for switching off the cooking area(s) (, ) and/or cooking zone(s) (), if the pot detection device has identified that the cooking vessel has been removed from said cooking area(s) (, ) and/or the cooking zone(s) (),'}{'b': 14', '16', '18, 'the control unit is provided for storing a cooking mode of that or those cooking area(s) (, ) and/or ...

Induction heating cooker and control method thereof

An induction heating cooker having an oil temperature control function by of the amount of change of an operating frequency, and a control method thereof, the induction heating cooker including a heating coil, an inverter unit, a driving unit, a detection unit to detect a value of a current that flows at the heating coil, and a control unit to calculate an operating frequency of the driving unit according to the value of the current, to vary the operating frequency so that the heating coil maintains a constant output that corresponds to an output level, and to determine whether oil accommodated in a container placed on the heating coil is overheated, by use of an amount of change of the operating frequency, and the maintenance or the control of the temperature of oil may be achieved.

Cooking Temperature and Power Control

A system and method for controlling the power delivered to cookware by a power control system that comprises a heating control user interface that is set by the user to a particular heating control user interface set point within an operating range. A controller derives from the heating control user interface set point a desired cookware temperature set point, and, over at least a first portion of the operating range that encompasses the boiling range, also derives from the heating control user interface set point a maximum limit of power that can be delivered to the cookware to maintain the cookware at the desired cookware temperature set point. The maximum power limit varies monotonically over the first portion of the operating range.

Household appliance apparatus

A cooktop apparatus, in particular an induction cooktop apparatus, includes at least one glass unit and at least one coating configured as a multilayer structure, which is disposed on at least one subregion of at least a main face of the glass unit and has at least two layers. In order to achieve optimum compatibility with the sensors of the user interface without requiring a process after deposition, at least one of the layers is formed by at least one semiconducting material, to fulfill the function of an absorbing layer.

INDUCTION RANGE HAVING AUTOMATIC DOUBLE SIDE ROASTING FUNCTION

Disclosed is an induction range having an automatic double side roasting function. The induction range includes a body having an internal space in which a heating coil portion configured to perform induction heating and a rotating rod configured to provide torque of a motor are formed, an induction-exclusive container which is inserted into and mounted in the body to be tilted from the ground at a first angle and is continuously or intermittently rotatable inside the body by the rotating rod and in which an object to be cooked which is accommodated therein is cooked by induction heat transferred from a side surface of the induction-exclusive container, and a control portion including a recipe memory portion configured to store a plurality of preset recipe modes, a heating coil operation portion configured to control an operation of the heating coil portion, and a motor driving portion configured to control the motor. 1. An induction range having an automatic double side roasting function , comprising:a body having an internal space in which a heating coil portion configured to perform induction heating and a rotating rod configured to provide torque of a motor are formed;an induction-exclusive container which is inserted into and mounted in the body to be tilted from the ground at a first angle and is continuously or intermittently rotatable inside the body by the rotating rod and in which an object to be cooked which is accommodated therein is cooked by induction heat transferred from a side surface of the induction-exclusive container; anda control portion comprising a recipe memory portion configured to store a plurality of preset recipe modes, a heating coil operation portion configured to control an operation of the heating coil portion, and a motor driving portion configured to control the motor.2. The induction range of claim 1 , wherein a position indication portion protruding outward is formed on a bottom part of the induction-exclusive container claim 1 , ...

HEATING DEVICE AND CONTROL METHOD THEREOF

A heating device includes a first capacitor, a first switch, a second switch, a second capacitor, a third capacitor, a coil and a controller. The first and second switch are coupled in series at a first node, and are coupled with the first capacitor in parallel. The second capacitor is coupled to the first switch. The third capacitor is coupled to the second switch, and is coupled to the second capacitor at a second node. The coil is coupled between the first and the second node. The controller outputs a first and a second control signal to the first switch and the second switch, respectively. After the heating device received a voltage and a starting command, the controller outputs the first and the second control signal to turn on or off the first and the second switch respectively. The duty cycle of the first signal is lower than 50%. 1. A heating device , configured to generate an induced magnetic field according to a voltage provided by a power source , comprising:a first capacitor coupled to the power source;a first switch;a second switch coupled to the first switch in series at a first node, and the first switch and the second switch are coupled with the first capacitor in parallel;a second capacitor coupled to the first switch;a third capacitor coupled to the second switch, and coupled to the second capacitor in series at a second node;a coil coupled between the first node and the second node, and configured to generate the induced magnetic field; anda controller configured to output a first control signal and a second control signal to the first switch and the second switch, respectively, wherein the first control signal and the second control signal are complementary to each other;wherein during a period after the heating device receives the voltage and after the heating device receives a starting command, the controller is configured to output the first control signal to turn on or off the first switch, and output the second control signal to turn on or ...

COOKING APPLIANCE

A cooking appliance apparatus includes at least one current supply line, and at least one current sensor unit configured to measure a high-frequency current in the at least one current supply line. The at least one current sensor has a first sensor inductance, at least one second sensor inductance, and at least one conduction path, which connects the first sensor inductance to the at least one second sensor inductance in an electrically conducting manner. 113-. (canceled)14. A cooking appliance apparatus , comprising:at least one current supply line; andat least one current sensor unit configured to measure a high-frequency current in the at least one current supply line, said at least one current sensor having a first sensor inductance, at least one second sensor inductance, and at least one conduction path, which connects the first sensor inductance to the at least one second sensor inductance in an electrically conducting manner.15. The cooking appliance apparatus of claim 14 , constructed in the form of a cooktop apparatus.16. The cooking appliance apparatus of claim 14 , wherein a first magnetic field claim 14 , generated by a hypothetical current flow through the first sensor inductance claim 14 , cancels out a second magnetic field generated by a hypothetical current flow through the at least one second sensor inductance claim 14 , at least at one point.17. The cooking appliance apparatus of claim 14 , wherein the first sensor inductance and the at least one second sensor inductance have at least essentially identical inductance values.18. The cooking appliance apparatus of claim 14 , wherein the first sensor inductance and the at least one second sensor inductance are at least essentially identical.19. The cooking appliance apparatus of claim 14 , wherein the first sensor inductance and the at least one second sensor inductance are connected antiserially.20. The cooking appliance apparatus of claim 14 , wherein at least one of the first and second sensor ...

COOKING APPLIANCE

A cooking appliance has a base made of natural stone, ceramic, porcelain, or an ultra-compact surface, with a bottom surface, and a top surface. The cooking appliance has an induction heating element coupled to the bottom surface. The induction heating element heats a targeted object placed on the top surface to a cooking temperature of at least 100 degrees Celsius. 1. A cooking appliance , comprising:at least one induction heating element;a base having a top surface, an induction cooking region, and a bottom surface; whereinthe at least one induction heating element is positioned below the cooking region;the cooking region is made of granite or marble, and has a thickness between the top surface and the bottom surface, the thickness being between 6 millimeters and 12 millimeters; andthe at least one induction heating element is configured to heat a targeted object placed on the cooking region to a temperature of at least 150 degrees Celsius.2. (canceled)3. The cooking appliance of claim 1 , further comprising:at least one passage through the base, the at least one passage shaped to receive an undermount sink.4. The cooking appliance of claim 1 , further comprising:at least one passage through the base, the at least one passage having a recessed flange surface shaped to receive a cooktop control panel and seat the cooktop control panel flush with the top surface.5. The cooking appliance of claim 1 , whereinthe base comprises a counter region made of granite or marble; andthe induction cooking region is unitary with the counter region.6. The cooking appliance of claim 1 , further comprising:a control panel, whereby the appliance is configured to detect a targeted object placed on the cooking region, and to cause only a respective region of the at least one or more induction heating element to heat the targeted object.7. (canceled)8. (canceled)9. (canceled)10. The cooking appliance of claim 1 , whereinthe base is formed from a unitary slab of granite or marble;the ...

AUTOMATED COOKER

A cooking system is disclosed which includes a wok for receiving food, the wok being placed on top of a base unit housing a heating element for heating up the wok, a lid substantially covering the wok, at least a portion of the lid being able to rotate relative to the wok, a shaft secured to the rotating portion of the lid, a stirrer pivotally mounted to the shaft, a controller housed in the base unit controlling the heating element and rotations of the shaft and the lid, the rotation of the shaft causing a part of the stirrer to sweep from an edge of the wok to approximately a center of the wok in a low path and return to an edge of the wok in a high path, in the low path the part of the stirrer approximately touching a surface of the wok, in the high path the part of the stirrer being high above and not touching the surface of the wok, and a computing device residing outside of the base unit and signally coupled to the controller, the computing device storing a computer program upon execution instructing the computing device to send operating commands to the controller, the operating commands controlling the heating element and the rotations of the shaft and the lid. 1. A cooking system comprising:a wok for receiving food, the wok being placed on top of a base unit housing a heating element for heating up the wok;a lid substantially covering the wok, at least a portion of the lid being able to rotate relative to the wok;a shaft secured to the rotating portion of the lid;a stirrer pivotally mounted to the shaft;a controller housed in the base unit controlling the heating element and rotations of the shaft and the lid, the rotation of the shaft causing a part of the stirrer to sweep from an edge of the wok to approximately a center of the wok in a low path and return to an edge of the wok in a high path, in the low path the part of the stirrer approximately touching a surface of the wok, in the high path the part of the stirrer being high above and not touching the ...

Cooking apparatus, control method, and control system thereof

A cooking apparatus includes an input interface configured to receive a control command for an operation of the cooking apparatus, a communication interface configured to communicate with a terminal device, a memory configured to store information related to limitation of a cooking operation received from the terminal device, and a processor configured to perform the input control command based on the information related to the limitation of the cooking operation, and the processor is configured to, based on a cooking operation command being received via the input interface in a cooking operation limitation state set according to the information related to the limitation of the cooking operation, control the communication interface to request the terminal device for release of the limitation of the cooking operation, and based on a release command being received from the terminal device, perform the input cooking operation command.

SEALING TEMPERATURE SENSOR ASSEMBLY FOR AN APPLIANCE COOKTOP

A temperature sensor assembly for a cooktop appliance can include a plate with a cylindrically-shaped boss, one or more seals located in one or more grooves of the plate, a grommet disk engaged with the bottom surface of the plate, and a cylindrically-shaped grommet in which a cap for a temperature sensor is positioned and is slidable therein. 1. A temperature sensor assembly for a cooktop appliance , the temperature sensor assembling defining a vertical axis , comprising:a plate defining a top surface and a bottom surface, the plate defining a first annular groove positioned on the top surface of the plate and facing upwardly along the vertical axis;a first seal located in the first annular groove of the plate;a grommet disk defining a top surface and a bottom surface, the top surface of the grommet disk engaged with the bottom surface of the plate, the grommet disk defining a cylindrically-shaped grommet extending along the vertical axis from the grommet disk, the cylindrically-shaped grommet having a grommet opening; anda cap for a temperature sensor, the cap positioned within the grommet opening, the cap slidable along the vertical axis within the grommet opening, the cap defining an interior space for receipt of a temperature sensor.2. The temperature sensor for a cooktop appliance as in claim 1 , further comprising a cylindrically-shaped boss protruding upwardly along the vertical axis from the top surface of the plate claim 1 , the boss defining a centrally-located aperture extending though the plate; wherein the cylindrically-shaped grommet extends into the centrally-located aperture; and wherein the boss defines a second annular groove on a radially outward surface of the boss claim 1 , the second annular groove facing radially outward from the vertical axis claim 1 , and further comprising a second seal located in the second annular groove.3. The temperature sensor for a cooktop appliance as in claim 2 , wherein the first annular groove has a first annular ...

COOK TOP ASSEMBLY HAVING A MONITORING SYSTEM AND METHOD OF MONITORING A COOKING PROCESS

A cook top assembly includes a cooking surface. A monitoring system is configured to monitor and control a cooking process on the cooking surface. The monitoring system includes at least one temperature sensor configured to sense a first temperature change at the cooking surface. A controller operatively coupled to the temperature sensor is configured to receive from the temperature sensor a signal indicating the first temperature change and activate a timing module operatively coupled to the controller for a first predetermined time period based at least in part on the first temperature change sensed by the temperature sensor. 1. A cook top assembly , comprising:a cooking surface; a temperature sensor configured to sense a first temperature change at the cooking surface; and', receive from the temperature sensor a first signal indicating the first temperature change; and', 'activate a timing module operatively coupled to the controller for a first predetermined time period based at least in part on the first temperature change sensed by the temperature sensor., 'a controller operatively coupled to the temperature sensor, the controller configured to], 'a monitoring system configured to monitor and control a cooking process on the cooking surface, the monitoring system comprising2. The cook top assembly of claim 1 , further comprising:a notification module operatively coupled to the controller, the notification module configured to generate a second signal that the first predetermined time period has elapsed; andan indicator module operatively coupled to the notification module, the indicator module configured to receive the second signal from the notification module and output a first instructional signal for instructing an operator of the cook top assembly to perform a first action.3. The cook top assembly of claim 2 , wherein the controller is configured to confirm that the first action has been completed by the operator.4. The cook top assembly of claim 2 , ...

HOUSEHOLD APPLIANCE WITH A CONTROL DEVICE

A domestic appliance includes at least one manually operable longitudinally or rotationally movable control device which is configured to adopt several latching positions. The latching positions are variably adjustable, for example adjusting a number of latching positions, or by adjusting a spacing between adjacent latching positions, or by adjusting a latching sensation of the latching positions. 110- (canceled)11. A domestic appliance , comprising at least one manually operable longitudinally or rotationally movable control device configured to adopt several latching positions , said latching positions being variably adjustable.12. The domestic appliance of claim 11 , further comprising a control facility claim 11 , said control device including adjustment electronics coupled to the control facility and configured to adjust the latching positions in response to data sent by the control facility.13. The domestic appliance of claim 11 , further comprising a control facility for adjusting the latching positions.14. The domestic appliance of claim 11 , wherein the latching positions are variably adjustable by adjusting a number of latching positions.15. The domestic appliance of claim 11 , wherein the latching positions are variably adjustable by adjusting a spacing between adjacent latching positions.16. The domestic appliance of claim 11 , wherein the latching positions are variably adjustable by adjusting a latching sensation of the latching positions.17. The domestic appliance of claim 16 , wherein different latching sensations are assigned to at least two latching positions.18. The domestic appliance of claim 11 , wherein the latching positions of the at least one control device is variable by a function of the control device.19. The domestic appliance of claim 11 , configured to operate at least one other domestic appliance claim 11 , with the control device representing an operating element for the at least one other domestic appliance.20. The domestic ...

COOKING TOOL, INTERWORKING SYSTEM BETWEEN THE COOKING TOOL AND KITCHEN APPLIANCES, AND CONTROL METHOD OF THE COOKING TOOL INTERWORKING WITH THE KITCHEN APPLIANCES

A cooking tool is disclosed, which comprises a fastening portion detachably provided in a cooking vessel provided above or inside a kitchen appliance to cook food; a sensor sensing a temperature of food which is cooked in the cooking vessel; a transmitter transmitting temperature information sensed by the sensor to the kitchen appliance as an electric signal; and a controller controlling the transmitter to transmit the temperature information sensed by the sensor as an electric signal. 1. A cooking tool comprising:a fastening portion detachably provided in a cooking vessel provided above or inside a kitchen appliance to cook food;a sensor sensing a temperature of food which is cooked in the cooking vessel;a transmitter transmitting temperature information sensed by the sensor to the kitchen appliance as an electric signal; anda controller controlling the transmitter to transmit the temperature information sensed by the sensor as an electric signal.2. The cooking tool according to claim 1 , wherein the kitchen appliance includes a receiver receiving the electric signal transmitted from the transmitter and a kitchen appliance controller controlling cooking intensity of food claim 1 , and the controller controls the transmitter to transmit the sensed temperature information to the receiver of the kitchen appliance to allow the kitchen appliance controller to control cooking intensity of food.3. The cooking tool according to claim 2 , wherein the sensor is provided as a thermocouple.4. The cooking tool according to claim 3 , wherein the thermocouple further includes a length control member controlling a length of the thermocouple to be in contact with food which is cooked.5. The cooking tool according to claim 2 , wherein the fastening portion further includes an extension portion extended therefrom to serve as a handle.6. The cooking tool according to claim 2 , further comprising a display module controlled by the controller to display cooking information of food.7. ...

METHOD FOR OPERATING A HOB, AND HOB

A method for operating a hob for maintaining a state, which exists at the time of activation of the maintaining operation, at a cooking point of the hob with a cooking vessel on it detects a change in temperature of the cooking vessel as a change in state, wherein supplied power and/or a change in temperature of the cooking vessel are evaluated. A maintaining function for maintaining the state, which is indicated at this time, at the cooking point with a cooking vessel placed on it can be triggered. In doing so, the current state at the cooking point is classified as a process at the boiling point of water on the one hand and as a process which is different therefrom or as a process which takes place at a different temperature without a phase transition of water on the other hand. 1. A method for operating a hob for maintaining a state at a cooking point of the hob with a cooking vessel on said cooking point , wherein said state exists at the time of activation of an operation for maintaining , the method comprising:placing a cooking vessel onto said cooking point of said hob and being heated by said cooking point or by an inductive heating device of said cooking point according to requirements;detecting a change in temperature of said cooking vessel as a change in state;detecting a heating process of said cooking vessel and evaluation of supplied power and/or a temperature of said cooking vessel and/or a profile thereof with respect to time;triggering of a maintaining function by an operator for maintaining said state, which is indicated at said time, at said cooking point with said cooking vessel placed on it; anddividing a current state at said cooking point firstly into a process at a boiling point of water and secondly into a process which is different therefrom or into a process which takes place at a different temperature without a phase transition of water,wherein, in a case of a decision in favor of a process at said boiling point of water, said power ...

Multi Cooker

A cooking appliance and method for heating an item positioned on the appliance and used in food preparation or food serving or cooking. The appliance including: a chassis having an upper platform for supporting the item in use; an induction element located below the platform for heating the item when positioned on the appliance; a temperature sensing assembly having a temperature sensing element; the temperature sensing element providing a temperature signal indicative of a current temperature of the item; a user interface for enabling a user to select a desired temperature of the item in use; and a processor module that receives the temperature signal and controls power to the induction element for providing the desired temperature; wherein the temperature sensing assembly is exposed to a fan cooling path such that the temperature sensing element is selectively cooled from below. 1. A cooking appliance for heating an item positioned on the appliance and used in food preparation or food serving or cooking , the appliance including:a chassis having an upper platform for supporting the item in use;an induction element located below the platform for heating the item when positioned on the appliance;a temperature sensing assembly having a temperature sensing element; the temperature sensing element providing a temperature signal indicative of a current temperature of the item;a user interface for enabling a user to select a desired temperature of the item in use; anda processor module that receives the temperature signal and controls power to the induction element for providing the desired temperature;wherein the temperature sensing assembly is exposed to a fan cooling path such that the temperature sensing element is selectively cooled from below.2. The cooking appliance of claim 1 , wherein the temperature sensing element is selectively cooled from below when the item is removed from the appliance.3. The cooking appliance of claim 1 , wherein the temperature sensing ...

INDUCTION HEATING APPARATUS AND CONTROLLING METHOD THEREOF

An induction heating apparatus includes a coil driver configured to have a plurality of selectable resonant frequencies, and a controller configured to control the coil driver. The coil driver drives a coil according to a control signal from the controller. 1. An induction heating apparatus comprising:a coil driver configured to have a plurality of selectable resonant frequencies; anda controller configured to control the coil driver,wherein the coil driver is further configured to drive a coil according to a control signal from the controller.2. The induction heating apparatus of claim 1 , wherein the coil driver has two or more resonant frequencies.3. The induction heating apparatus of claim 1 , wherein the coil driver comprises:a plurality of first coils connected in series;a plurality of second coils connected in series;a first switching device disposed between the plurality of first coils;a second switching device disposed between the plurality of second coils;a plurality of first capacitors connected to the plurality of first coils; anda plurality of second capacitors connected to the plurality of second coils.4. The induction heating apparatus of claim 3 , wherein the controller is further configured to:turn on or off the first switching device disposed between the plurality of first coils, andturn on or off the second switching device disposed between the plurality of second coils.5. The induction heating apparatus of claim 3 , wherein:the plurality of first capacitors connected to the plurality of first coils are two or more capacitors, andthe plurality of second capacitors connected to the plurality of second coils are two or more capacitors.6. The induction heating apparatus of claim 3 , wherein the coil driver further comprises a current sensor disposed between an input terminal of the coil driver and a node of the plurality of first coils connected in series and the plurality of second coils connected in series.7. The induction heating apparatus of ...

INDUCTION HEATING COOKER

An induction heating cooker is provided that has a plurality of heating coils arranged under a top plate, that has power consumption, heat generation, and unnecessary radiation suppressed at the time of detection of a load, and that requires a short time for detection of a load. In the induction heating cooker of this disclosure, two or more heating coils are at the same time selected depending on a position of an area operated on the operation section. The operation detecting section performs the load detection only for the heating coils selected by an operation on the operation section. By using such a configuration, a user can select heating coils to be used out of a plurality of heating coils in advance. A load detection operation is not performed for heating coils other than the selected heating coils.

METHOD FOR ILLUMINATING KNOBS OF A COOKING APPLIANCE

A method for illuminating a knob of a cooking appliance is provided. The method includes positioning a cooking utensil on a cooking surface of the cooking appliance, rotating the knob in order to activate a heating element of the cooking appliance and sequentially activating a plurality of light emitting diodes beneath the knob. 1. A method for illuminating a knob on a cooking appliance , comprising:positioning a cooking utensil on a cooking surface of the cooking appliance;rotating the knob in order to activate an induction heating element of the cooking appliance; andsequentially activating each light emitting diode (LED) of a plurality of light emitting diodes if the induction heating element does not heat the cooking utensil after said step of rotating, the plurality of light emitting diodes distributed in a circular pattern below the knob.2. The method of claim 1 , wherein said step of sequentially activating comprises a plurality of consecutive activation stages claim 1 , only one LED of the plurality of light emitting diodes emitting light during each activation stage of the plurality of consecutive activation stages.3. The method of claim 1 , wherein each LED of the plurality of light emitting diodes is activated after a respective adjacent LED of the plurality of light emitting diodes is deactivated during said step of sequentially activating.4. The method of claim 1 , wherein the plurality of light emitting diodes operates in a chasing pattern during said step of sequentially activating.5. The method of claim 1 , further comprising constantly operating each LED of the plurality of light emitting diodes at said step of rotating and before said step of sequentially activating.6. The method of claim 5 , wherein light emitted by the plurality of light emitting diodes is a first color at said step of constantly operating and light emitted by the plurality of light emitting diodes is a second color at said step of sequentially activating claim 5 , the first ...

INDUCTION HEATING DEVICE AND METHOD FOR SENSING A COOKING VESSEL ON AN INDUCTION HEATING DEVICE

An induction heating device and a method for sensing a cooking vessel on an induction heating device are provided. The induction heating device may include a controller that converts a resonance waveform generated as current is applied to a sensing coil into a square waveform. The controller may determine whether a cooking vessel placed on the induction heating device has an inductive heating property based on a number of pulses of the converted square waveform. 1. An induction heating device including:a plate configured to receive a cooking vessel thereon;a working coil provided below the plate that heats the cooking vessel using an inductive current;a cooking vessel sensor provided concentrically with the working coil such that the working coil surrounds the cooking vessel sensor; anda controller configured to apply a sensing current to the sensing coil to generate a resonant signal and determine whether the cooking vessel has an inductive heating property based on the generated resonant signal,wherein the cooking vessel sensor includes:a body having a first receiving space, a side wall, and a sensing coil wound by a predetermined number of winding counts on an outer face of the side wall of the body;a magnetic core received in the first receiving space, wherein the magnetic core has a hollow cylindrical shape and a second receiving space formed inside the magnetic core; anda temperature sensor received in the second receiving space.2. The induction heating device of claim 1 , wherein the controller is configured to:convert the resonant signal into a square waveform; andcompare a number of pulses of the square waveform with a predetermined reference value, and determine whether the cooking vessel has an inductive heating property based on the comparison3. The induction heating device of claim 2 , wherein the controller determines that the cooking vessel has an inductive heating property when the number of the pulses of the square waveform is equal to or smaller ...

COOKING APPARATUS

The present disclosure relates to a cooking apparatus having a heating module capable of moving in a two-dimensional space and, particularly, to a cooking apparatus comprising: an upper plate configured to support a cooking vessel, a heating module disposed movably in a space provided under the upper plate and included a coil, and a rail disposed under the heating module to guide movements of the heating module, wherein electric current is supplied to the rail and the heating module supplies an alternating current through the rail. According to the present disclosure, the heating module supplies a current through the rail rather than receiving a current through a separate connection coil or wiring from an external power supply, thereby enabling shorting or disconnection of a current to be prevented even if the heating module moves. 1. A cooking apparatus , comprising:an upper plate configured to support a cooking vessel, a heating module disposed movably in a space provided under the upper plate and included a coil, anda rail disposed under the heating module to guide movements of the heating module, wherein electric current is supplied to the rail and the heating module supplies an alternating current through the rail.2. The cooking apparatus of claim 1 , wherein claim 1 ,the rail includes a first rail on which the heating module is disposed and which is electrically connected to the heating module, andthe heating module is movable along extension direction of the first rail while maintaining an electric connection with the first rail.3. The cooking apparatus of claim 2 , wherein claim 2 ,a pair of the first rails are provided to supply electric current to the heating module, andthe heating module is provided with a pair of contact terminals that are kept in contact with the pair of first rails.4. The cooking apparatus of claim 3 , wherein claim 3 ,a free end of the contact terminal contacts an upper end of the first rail, andthe contact terminal includes a bent ...

Wireless power transfer apparatus and wireless power transfer system

A wireless power transfer apparatus according to the present invention is a wireless power transfer apparatus for transferring power to a power receiving apparatus. The wireless power transfer apparatus includes a support on which the power receiving apparatus is placed, a coil disposed below the support, the coil generating a high-frequency magnetic field upon receiving supply of a high-frequency current, a communication device disposed below the support to perform radio communication with the power receiving apparatus, a first magnetic shield member made of an electric conductor, the first magnetic shield member being disposed between the communication device and the coil, and a second magnetic shield member made of an electric conductor or a magnetic body, the second magnetic shield member being disposed on at least one of a lower surface and a lateral surface of the communication device.

METHOD FOR BOIL DETECTION AND INDUCTION HOB INCLUDING A BOIL DETECTION MECHANISM

The invention relates to a method for boil detection at a heating zone of an induction hob (), the method comprising the steps of: —disabling (S) a power control mechanism of the induction hob by setting the frequency of the AC-current provided to an induction coil of the induction hob to a fixed value; —measuring (S) values of an electrical parameter provided within the induction hob (); —interpolating (S) the measured electrical parameter values by gathering a plurality of values of the electrical parameter within a time window and calculating the average value of said gathered plurality of values thereby obtaining interpolated electrical parameter values. —calculating (S) a gradient measure indicative for the differential change of the interpolated electrical parameter values over time; —determining (S) the boil point based on the calculated gradient measure. 1. A method for boil detection at a heating zone of an induction hob , the method comprising the steps of:disabling a power control mechanism of the induction hob by setting a frequency of AC-current provided to an induction coil of the induction hob associated with the heating zone to a fixed value;measuring values of an electrical parameter provided within the induction hob;interpolating the measured electrical parameter values by gathering a plurality of said values of the electrical parameter within a time window and calculating an average value of said gathered plurality of values thereby obtaining interpolated electrical parameter values;calculating a gradient measure indicative for a differential change of the interpolated electrical parameter values over time;determining a boil point based on the calculated gradient measure.2. The method according to claim 1 , wherein the boil point is determined by detecting whether the calculated gradient measure is zero and/or changes in its sign.3. The method according to claim 1 , wherein the electrical parameter is a peak current of the induction coil claim 1 , ...

INDUCTION HEATING COOKING DEVICE

Provided is an induction cooking apparatus including a heating part including a working coil forming a heating region and configured to heat a container placed in the heating region, an inverter configured to supply a driving voltage to the working coil, a plurality of sensing coils arranged along a circumferential portion of the working coil and sensing the container placed in the heating region, and a controller configured to determine whether to drive the inverter on the basis of information acquired from the plurality of sensing coils. 1. An induction cooking apparatus comprising:a body having an upper surface;a heating device on the upper surface of the body, the heating device including a working coil for heating a container to be provided at a heating region on the upper surface of the body;an inverter configured to supply a driving voltage to the working coil;a plurality of sensing coils arranged along a circumferential portion of the heating device, the plurality of sensing coils including a first one of the sensing coils and a second one of the sensing coils to detect the container at the heating region; anda controller configured to determine whether to drive the inverter based on of information obtained from the plurality of sensing coils.2. The induction cooking apparatus of claim 1 , wherein the controller is to compare a first sensing value of the first sensing coil and a second sensing value of the second sensing coil with at least one set value claim 1 , and the controller is to determine at least one of whether the container is provided at the heating region and whether the container is thermally conductive based on the comparing of the first and second sensing values with the at least one set value.3. The induction cooking apparatus of claim 2 , wherein the at least one set value includes a first state set value for determining whether the container at the heating region is eccentric.4. The induction cooking apparatus of claim 3 , wherein when the ...

INDUCTION COOKTOP

An induction cooktop may include: a cooking surface; an induction coil; electronic circuitry coupled to said induction coil; and a housing surrounding at least a portion of said induction coil and at least a portion of said electronic circuitry, and said housing comprising a fan chamber comprising: a fan; at least one ribbed wall; and a fan cover covering at least a portion of said fan so as to direct airflow over said electronic circuitry. According to various exemplary embodiments, various preset operating ranges, precise temperature control using discrete increments may be used, as well as power calibration, noise reduction, ultra wide temperature range cooking, flexible programming, extensive multi-stage long duration cooking and memories, including selectable delays, pause features, high temperature searing, low temperature cooking, ultra high frequency high temperature operation, immediate fan shutoff, multiple temperature unit convertible display, multi-stage, and/or multi-step cooking, are disclosed. 1. An induction cooktop comprising:a cooking surface;an induction coil;electronic circuitry coupled to said induction coil; and a fan;', 'at least one ribbed wall; and', 'a fan cover covering at least a portion of said fan so as to direct airflow over said electronic circuitry., 'a housing surrounding at least a portion of said induction coil and at least a portion of said electronic circuitry, and said housing comprising a fan chamber comprising2. The induction cooktop according to claim 1 , further comprising:a plurality of preset temperature ranges.3. The induction cooktop according to claim 2 , wherein said plurality of preset temperature ranges comprises at least 6 claim 2 , or at least 7 preset temperature ranges.4. The induction cooktop according to claim 1 , further comprising at least one thermistor electronically coupled to said electronic circuitry and wherein said thermistor is placed in contact with said glass cooking surface.5. The induction ...

DETERMINING RESONANT FREQUENCY FOR QUASI-RESONANT INDUCTION COOKING DEVICES

Systems and methods of quasi-resonant induction heating are provided. In particular, a method for evaluating the resonant frequency of a quasi-resonant induction cooking device can be provided. The method can include generating a startup pulse, receiving multiple feedback pulses from a resonant frequency feedback circuit, measuring a pulse width of each of the feedback pulses, calculating an average pulse width based upon the feedback pulses and determining the resonant frequency based at least in part on the average pulse width and a transfer function. 1. A method for determining a resonant frequency of a quasi-resonant inverter in an induction cooking device , wherein the quasi-resonant inverter includes a parallel configuration of an inductor , a capacitor , a cooking vessel , a switching element and a resonant frequency feedback circuit , the method comprising:generating, by one or more controllers, a startup pulse;receiving, by one or more controllers, multiple feedback pulses from a resonant frequency feedback circuit;measuring a pulse width of each of the feedback pulses;calculating a sync pulse width based at least in part on the feedback pulses; anddetermining the resonant frequency based at least in part on the sync pulse width and a transfer function.2. The method of claim 1 , wherein the feedback pulses are based claim 1 , at least in part claim 1 , a voltage across a collector-emitter junction of the switching element.3. The method of claim 2 , wherein the resonant frequency feedback circuit is a voltage comparator.4. The method of claim 3 , wherein the switching element is an insulated gate bipolar transistor.5. The method of claim 4 , wherein the method further comprises determining if the number of feedback pulses received claim 4 , by the one or more controllers claim 4 , is within a first predetermined range.6. The method of claim 5 , wherein the method further comprises determining if the pulse width of feedback pulses received claim 5 , by the ...

INDUCTION HEATING DEVICE PERFORMING CONTAINER SENSING FUNCTION

An induction heating device includes an induction heating circuit, a sensor configured to measure current applied to the induction heating circuit, and a controller. The controller includes: a switch driving unit configured to control operation of an inverter unit and to allow a resonance of the current, a container sensing unit, and a control unit. The container sensing unit is configured to: convert a first current value before the resonance into a first voltage value; control the switch driving unit to charge a working coil; compare the first voltage value with a resonance reference value; convert a second current value after the resonance into a second voltage value; generate one or more output pulses; and compare the second voltage value with a count reference value. The control unit is configured to determine whether an object is present on the working coil based on the one or more output pulses. 1. An induction heating device , comprising:an induction heating circuit configured to drive a working coil, the induction heating circuit comprising an inverter unit;a sensor configured to measure a current applied to the induction heating circuit; anda controller configured to control the induction heating circuit based on a current value of the current measured by the sensor, a switch driving unit configured to control operation of the inverter unit and to allow a resonance of the current,', convert a first current value measured before the resonance into a first voltage value,', 'based on conversion of the first current value to the first voltage value, control the switch driving unit to charge the working coil with energy,', 'compare the first voltage value with a predetermined resonance reference value,', 'convert a second current value measured after the resonance into a second voltage value,', 'based on conversion of the second current value into the second voltage value, generate one or more output pulses, and', 'compare the second voltage value with a ...

METHOD FOR SENSING CONTAINER USING RESONANT CURRENT

A method for sensing a container includes: charging an induction heating circuit; sensing a current applied to the induction heating circuit, converting a current value of the current into a first voltage value; comparing the first voltage value with a resonance reference value; generating a resonance of the current; sensing a resonant current generated in the induction heating circuit; converting the resonant current into a second voltage value; comparing the second voltage value with a count reference value; generating one or more output pulses; comparing a count of the one or more output pulses with a reference count, or comparing an on-duty time of the one or more output pulses with a reference time; and based on (i) the comparison of the count with the reference count or (ii) the comparison of the on-duty time with the reference time, determining whether an object is present on a working coil. 1. A method for sensing a container by an induction heating device that includes a switch driving unit , an induction heating circuit configured to drive a working coil by an inverter unit , a sensor configured to sense current applied to the induction heating circuit , a resonant current conversion unit configured to convert current values to voltage values , a shutdown comparison unit , a shutdown circuit unit configured to control the switch driving unit , a count comparison unit , and a control unit configured to determine presence of the container on the working coil , the method comprising:charging, by controlling the inverter unit through the switch driving unit, the induction heating circuit;sensing, by the sensor, a current applied to the induction heating circuit;converting, by the resonant current conversion unit, a current value of the current into a first voltage value;comparing, by the shutdown comparison unit, the first voltage value with a predetermined resonance reference value;based on the first voltage value being greater than the predetermined ...

DETERMINING PRESENCE OF COMPATIBLE COOKWARE IN INDUCTION HEATING SYSTEMS

Induction cooktops and operational methods are provided herein. A method of determining presence of compatible cookware on an induction cooktop can include receiving a request to heat the induction cooktop, controlling at least one switching device to induce a current within an assumed piece of cookware with an induction coil of the induction cooktop, sensing a voltage associated with the at least one switching device, the voltage being proportional to current flowing in the induction coil, determining that the sensed voltage includes one or more voltage spikes above a first threshold, and determining that the assumed piece of cookware is absent when the sensed voltage includes the one or more voltage spikes. 1. A method of determining presence of compatible cookware on an induction cooktop , comprising:receiving a request to heat the induction cooktop;controlling at least one switching device to induce a current within an assumed piece of cookware with an induction coil of the induction cooktop;sensing a voltage associated with the at least one switching device, the voltage being proportional to current flowing in the induction coil;determining that the sensed voltage includes one or more voltage spikes above a first threshold; anddetermining that the assumed piece of cookware is absent when the sensed voltage includes the one or more voltage spikes.2. The method of claim 1 , wherein the induction coil of the induction cooktop is arranged as a resonant tank circuit with at least two switching devices claim 1 , and wherein sensing the voltage associated with the at least one switching device comprises:sensing a first voltage at a first switching device of the at least two switching devices via a voltage sensing device.3. The method of claim 2 , wherein the voltage sensing device comprises a voltage sensing resistor operatively coupled to a capacitance associated with the first switching device.4. The method of claim 3 , wherein the voltage sensing resistor is ...

TEMPERATURE MEASUREMENT IN A COOKING VESSEL

By performing a method for transmitting to a reading device data of a sensor that is allocated to an inductively heated cooking vessel, a high frequency control voltage is generated from a mains alternating voltage by means of a converter, wherein the high frequency control voltage is applied to an oscillator circuit having an induction heating coil in order to generate a high frequency magnetic alternating field for heating the cooking vessel. The method includes the steps: interrupting the applying of the high frequency control voltage to the oscillator circuit during a predefined first time region covering a zero crossing point of the mains alternating voltage in order to cause a self-resonant oscillation of the oscillator circuit; changing an impedance of an antenna that is inductively coupled to the induction heating coil, which antenna is allocated to the cooking vessel, in dependence upon the data of the sensor, which data is to be transmitted, during a second time region that lies within the first time region; and decoding the transmitted data of the sensor in the reading device, in that a resonant frequency, in particular a resonant frequency change, of the self-resonant oscillation of the oscillator circuit is evaluated. 1. A method for transmitting to a reading device data of a sensor that is allocated to an inductively heatable cooking vessel , wherein:generating a high frequency control voltage from a mains alternating voltage (UN) by means of a convertor, wherein the high frequency control voltage is applied to an oscillator circuit having an induction heating coil in order to generate a high frequency magnetic alternating field for heating the cooking vessel;interrupting the applying of the high frequency control voltage to the oscillator circuit during a predefined first time region covering a zero crossing point of the mains alternating voltage in order to cause a self-resonant oscillation of the oscillator circuit;changing an impedance of an ...

METHOD OF DETECTING COOKWARE ON AN INDUCTION HOB, INDUCTION HOB AND COOKING APPLIANCE

A method of detecting cookware () on an induction hob () including a plurality of induction heating coils () each being adapted for heating, in the activated state, cookware () placed on the induction hob (). With the method, detecting cookware () is based on signals generated by at least one active induction heating coil () through the action of parasitic electromagnetic coupling effects in at least one inactive induction heating coil (). 13123134856. Method of detecting cookware () on an induction hob () comprising a plurality of induction heating coils () each being adapted for heating , in the activated state , cookware () placed on the induction hob () , characterized in that detecting cookware () is based on signals generated by at least one active induction heating coil () through the action of parasitic electromagnetic coupling effects () in at least one inactive induction heating coil ( , ).2568. Method according to claim 1 , wherein the signals generated in the at least one inactive induction coil ( claim 1 , ) by parasitic electromagnetic coupling () are constantly monitored claim 1 , in particular monitored for changes.3564. Method according to claim 2 , wherein in the event of detecting a change in one of the signals at least one induction coil ( claim 2 , ) is activated and/or at least one induction coil () is deactivated.4644. Method according to claim 1 , wherein signals of induction heating coils () neighboring at least one active induction heating coil () claim 1 , preferably a contiguous group of active induction heating coils () claim 1 , are used for detecting at least one of cookware presence claim 1 , cookware displacement and addition of additional cookware.526263. Method according to claim 1 , wherein the signal strength or signal amplitude of the signals of an inactive induction heating coil ( claim 1 , ) is used for determining the degree to which a respective induction coil ( claim 1 , ) is covered by cookware ().6826. Method according to ...

INDUCTION COOKTOP

The present disclosure relates to an induction cooktop. The induction cooktop comprises a ceramic cooking surface in connection with a housing. A plurality of inductors is disposed in the housing and each of the inductors is in communication with an automatic control system. The automatic control system is configured to check for the presence of a cooking pan on the cooktop in order to prevent the inductors from activating in the absence of the cooking pan. The automatic control system is activated upon receiving an activation command. 1. An induction cooktop , comprising:a ceramic cooking surface in connection with a housing;a plurality of inductors disposed in the housing; andan automatic control system in communication with the inductors and configured to check for the presence of a cooking pan on said cooktop in order to prevent the inductors from activating in the absence of the cooking pan, wherein the automatic control system is activated upon receiving an activation command.2. The induction cooktop according to claim 1 , wherein the control system is adapted to activate at least one of the inductors in response to a detection of a small pan operating condition.3. The induction cooktop according to claim 2 , further comprising an inverter comprising at least one inverter switch configured to drive one of the inductors.4. The induction cooktop according to claim 3 , wherein the small pan operating condition is identified in response to a phase angle between a zero-crossing of an induced current and a leading edge of a square wave of a voltage across the inverter switch.5. The induction cooktop according to claim 4 , wherein the control system is adapted to identify the small pan operating condition in response to the phase angle being less than a pan presence threshold.6. The induction cooktop according to claim 5 , wherein the pan presence threshold corresponds to a phase angle approximately less than 88 degrees.7. The induction cooktop according to claim 5 , ...

Intelligent Power Module Control Method for Resonant Converter

A method of generating a gate drive signal for driving a control terminal of a power switch includes detecting a system input signal; determining a signal pulse of the system input signal being a first signal pulse following a power up event, or following an idle period, or following removal of a fault condition; and in response, generating a soft gate drive signal to drive the control terminal of the power switch to softly turn on the power switch. In another embodiment, the method includes determining a duration of the on period of the system input signal exceeding a maximum on duration and in response, disabling the gate drive signal to turn off the power switch; and determining a deassertion transition of the system input signal and in response, blocking the system input signal from the gate drive signal for a minimum off duration. 1. A method of generating a gate drive signal for driving a control terminal of a power switch where the control terminal controls the current flow between first and second power terminals of the power switch , the method comprising:detecting a power up event in response to a power supply voltage increasing above a threshold voltage;detecting a system input signal, the system input signal determining an on-period and off-period of the power switch;determining a signal pulse of the system input signal being a first signal pulse following the power up event and in response to the determining, generating a soft gate drive signal to drive the control terminal of the power switch with a slowly rising voltage to softly turn on the power switch;generating a normal gate drive signal to drive the control terminal of the power switch in response to signal pulses of the system input signal subsequent to the first signal pulse;determining a signal pulse of the system input signal being a first signal pulse following an idle period of the system input signal and in response to the determining, generating the soft gate drive signal to drive the ...

INDUCTION HEAT COOKING APPARATUS AND OPERATING METHOD THEREOF

Disclosed herein is an induction heat cooking apparatus including a power supply configured to supply an alternating current (AC) voltage, a rectifier configured to rectify the supplied AC voltage into a direct current (DC) voltage, first and second switching units configured to control switching such that the DC voltage from the rectifier is alternately applied to a working coil, a comparison unit configured to sense current flowing in the working coil and to compare the sensed current with a predetermined reference value to output pulses, and a controller configured to determine whether a cooking vessel is present on the working coil based on the output pulses. 1. An induction heat cooking apparatus comprising:a power supply configured to supply an alternating current (AC) voltage;a rectifier configured to convert the AC voltage into a direct current (DC) voltage;a working coil configured to operate based on the DC voltage generated from the rectifier;a first switching unit and a second switching unit that are configured to control supply of the DC voltage to the working coil and that are configured to alternately apply the DC voltage to the working coil;a comparison unit that is configured to sense current flowing in the working coil, that is configured to compare the sensed current to a reference value, and that is configured to generate output pulses based on a comparison result of the sensed current with respect to the reference value; anda controller configured to determine whether a cooking vessel is present on the working coil based on the output pulses generated from the comparison unit.2. The induction heat cooking apparatus according to claim 1 , wherein the comparison unit is further configured to:generate output pulses having a high level voltage based on the sensed current being greater than the reference value; andgenerate output pulses having a low level voltage based on the sensed current being less than the reference value, the high level voltage ...

HOB AND METHODS FOR OPERATING SUCH A HOB

A hob and methods for operating such a hob. The hob includes a cooking surface adapted to receive a number of pots. A user interface allows a user to select and adjust at least one parameter of a cooking zone associated to a pot while indicating the number of pots on the selected cooking zone and a pot detection unit to detect the presence and non-presence of pots on the cooking surface. The hob further includes a control unit that cooperates with the pot detection unit and the user interface to control the function of commands received through the user interface. The control unit can cause a selection of a certain cooking zone and provide a corresponding indication that the certain cooking zone is from now on selected, if temporal interruption of a presence of a pot on the certain cooking zone was detected. 123124681046810283302812121246810468101230468101246810283046810. Hob () comprising a cooking surface () adapted to receive a number of pots , an user interface () allowing an user to select a cooking zone ( , , , ) associated to a pot and to adjust at least one operating parameter of the selected cooking zone ( , , , ) , a pot detection unit () adapted to detect the presence and non-presence of pots on the cooking surface () , a control unit ()cooperating with the pot detection unit () and the user interface () and adapted to control the function of commands received through the user interface () , wherein the user interface () is adapted to indicate the user the presence of every pot of the number of pots on their associated cooking zones ( , , , ) and to indicate the user the actually selected cooking zone ( , , , ) whose at least one operating parameter is adjustable through the user interface () by the user and wherein in one operation mode the control unit () is adapted to cause a selection of a certain cooking zone ( , , , ) and to provide a corresponding indication on the user interface () that the certain cooking zone ( , , , ) is from now on selected , ...

Method for automatic pairing for communication between a cooking utensil and an element of an induction cooktop

A method for communication between a cooking utensil and an induction cooktop, includes: a step of arrangement of a cooking utensil on an element of the induction cooktop, a step of generation of a magnetic flux by the element on which the cooking utensil is arranged, a pairing request step including a sending of at least one pairing request frame by the communication module of the cooking utensil or the sending of at least one corresponding pairing request frame by the communication device of the induction cooktop, a step of listening by the communication device of the induction cooktop or, if applicable, by the communication module of the cooking utensil, the listening step including reception of the at least one pairing request frame or, if applicable, of the at least one corresponding pairing request frame, a pairing step between the cooking utensil and the induction cooktop including an exchange of information.

Monitoring Cooking Appliances

A method for monitoring the use of cooking a cooking hobs, using an infrared imaging system to detect and classify at least one region of the hob to ascribe a characteristic to said region, to determine relevant criteria relating to that region, and to provide responses appropriate to deviations from those criteria.

IMPROVED INDUCTION COOKING SYSTEM

An induction cooking system () with flexible configuration is described, comprising: a mobile cooker assembly () only comprising an induction cooking plane (); a control station () comprising control means connected to the induction cooking plane () through respective connecting means () for transmitting operating electric energy to the induction cooking plane (), the control means being equipped with processing means programmed to drive and manage the induction operation of the cooking plane () through the respective connecting means (), which is a flexible electric transmission cable.

COOKTOP HAVING A PLURALITY OF HEATING ELEMENTS

In a method for operating a cooktop, a process of removal and placement of a cookware element with respect to a starting position and an end position is detectable by a detection arrangement. A control unit forms a heating zone to match a detected cookware element. The process can be independently associated by the control unit in one of two ways, a first way in which the process involves a movement of cookware element from the starting position into the end position and a movement of the heating zone into an area of the end position, with a target temperature, set by a user interface, being carried over to the area of the end position, a second way in which the process involves removal of cookware element from the starting position and placement of another cookware element in the end position, with a target temperature set to a default value. 112-. (canceled)13. A method for operating a cooktop having a plurality of heating elements , comprising the steps:detecting by a detection arrangement a process of removal and placement of a cookware element with respect to a starting position and an end position;when detecting placement of the cookware element, forming via a control unit a heating zone from one or more heating elements to match the cookware element;setting at least one target temperature of the heating zone via a user interface, andindependently associating the process by the control unit in one of two ways, a first way in which the process involves a movement of the cookware element from the starting position into the end position and a movement of the heating zone into an area of the end position, with the at least one set target temperature being carried over to the area of the end position, a second way in which the process involves a removal of the cookware element from the starting position and placement of another cookware element in the end position, with the target temperature being set to a default value by the control unit.14. The method of claim ...

Multi-purpose heating device

A multi-purpose heating device comprising: a first heating unit disposed at the bottom thereof; a second heating unit disposed at the top thereof; and a pillar which vertically connects one side end of the first heating unit with one side end of the second heating unit so as to form a space between the first and second heating units, the device being capable of cooking food through the first heating unit disposed at the bottom thereof and at the same time applying heat, through the second heating unit disposed at the top thereof, to the food being cooked by the first heating unit disposed at the bottom thereof, wherein the first and second heating units are controlled by individual power supply and power cut-off and the second heating unit can perform a heating function through up and down rotation on the basis of the pillar.

METHOD, DEVICE AND ELECTRONIC DEVICE FOR HEATING AN INNER COOKING PAN OF AN INDUCTION COOKING EQUIPMENT AND COMPUTER-READABLE MEDIUM

The present disclosure relates to a method, device and electronic device for heating an inner cooking pan of an induction cooking equipment and computer-readable medium. The method can comprise: determining a material type of an inner cooking pan; and selecting a voltage change curve matching with the material type for use in a cooking process of the induction cooking equipment where the inner cooking pan is installed. In the technical solutions of the disclosure, different material types of inner cooking pans can obtain same or similar heating result by selecting a voltage change curve matching with a material type of an inner cooking pan. 1. A method for heating an inner cooking pan of an induction cooking equipment , comprising:determining a material type of the inner cooking pan; andselecting a voltage change curve based on the material type for use in a cooking process of the induction cooking equipment where the inner cooking pan is installed.2. The method of claim 1 , wherein determining the material type of the inner cooking pan comprises:acquiring the material type that is encoded in a barcode graph on a surface of the inner cooking pan.3. The method of claim 2 , wherein acquiring the material type that is encoded in the barcode graph on the surface of the inner cooking pan comprises:acquiring and decoding the barcode graph to acquire the material type encoded in the barcode graph; orreceiving an assisting message with the material type sent by a mobile device, wherein the mobile device is configured to read the barcode graph and decode the barcode graph to acquire the material type.4. The method of claim 1 , wherein determining the material type of the inner cooking pan comprises:receiving a notification message sent by an electronic label on the inner cooking pan, the notification message comprising the material type of the inner cooking pan.5. The method of claim 1 , wherein when a surface of the inner cooking pan comprises a physical structure ...

METHOD FOR AUTOMATICALLY CORRELATING AT LEAST ONE COOKTOP UTENSIL WITH AT LEAST ONE COOKING ZONE OF AN INDUCTIVE COOKTOP, INDUCTIVE COOKTOP, COOKTOP UTENSIL AND SYSTEM FOR CARRYING OUT THE METHOD

A method for automatically correlating at least one cooktop utensil with at least one cooking zone of an inductive cooktop having a plurality of cooking zones which are inductively heated by at least one respective heating coil, includes: providing the cooktop with a cooktop controller configured to drive the heating coils with a correlation signal; providing the at least one cooktop utensil with an induction coil inductively couplable with the heating coils of the cooktop and a transmitter unit; supplying the transmitter unit with an operation power when a voltage is induced by at least one of the heating coils into the induction coil of the cooktop utensil that is placed on the cooking zone associated with this heating coil; transmitting, by the transmitter unit of the cooktop utensil, by the operating power, a response signal that identifies the cooktop utensil and correlates with the induced correlation signal. 1. A method for automatically correlating at least one cooktop utensil with at least one cooking zone of an inductive cooktop having a plurality of cooking zones which are inductively heated by at least one respective heating coil , the method comprising:providing the cooktop with a cooktop controller configured to drive the heating coils with a correlation signal;providing the at least one cooktop utensil with an induction coil inductively couplable with the heating coils of the cooktop and a transmitter unit;supplying the transmitter unit with an operation power when a voltage is induced by at least one of the heating coils into the induction coil of the cooktop utensil that is placed on the cooking zone associated with this heating coil;transmitting, by the transmitter unit of the cooktop utensil, by the operating power, a response signal that identifies the cooktop utensil and correlates with the correlation signal induced into the induction coil of the cooktop utensil by at least one of the heating coils associated with the cooking zone to a receiver ...

INFRARED TEMPERATURE SENSING IN INDUCTION COOKING SYSTEMS

An induction cooking system. The induction cooking system includes a base, one or more side walls, an induction coil, and an infrared temperature sensor. The base includes a base surface associated therewith. The base surface includes a window. The window is disposed within the base surface. The one or more side walls define a well above the base surface. The well is configured to receive a vessel disposed above the base surface. The induction coil is disposed within the base. The induction coil defines a first surface that is disposed below the base surface. The induction coil also defines a second surface that is disposed opposite from the first surface. The induction coil further defines an aperture disposed adjacent to the window and extending from a first surface toward a second surface of the induction coil. The infrared temperature sensor is disposed adjacent to the window and within the aperture. 1. An induction cooking system , comprising:a base including a base surface associated therewith, the base surface having a window disposed within the base surface;one or more side walls defining a well above the base surface, the well configured to receive a vessel disposed above the base surface; a first surface disposed below the base surface,', 'a second surface disposed opposite the first surface, and', 'an aperture disposed adjacent the window and extending from the first surface toward the second surface; and, 'an induction coil disposed within the base, the induction coil defining'}an infrared temperature sensor disposed adjacent to the window and within the aperture.2. The induction cooking system of claim 1 , wherein the window comprises polyethylene plastic.3. The induction cooking system of claim 2 , wherein the base surface comprises bulk molding compound.4. The induction cooking system of claim 1 , wherein the base surface comprises bulk molding compound.5. The induction cooking system of claim 1 , further comprising a gap between a bottom of the ...

HOB DEVICE

A generic hob device having improved characteristics with regard to high operating convenience includes an output unit and a control unit. The hob device outputs by the output unit a catalogue of recipes for selection, and depending on an operating input, the hob device leads an operator through a selected recipe by the output unit. 113-. (canceled)14. A cooktop apparatus , comprising:an output unit; anda control unit configured to output a catalog of recipes for selection by the output unit and to guide an operator through a selected one of the catalog of recipes by the output unit as a function of an operating input.15. The cooktop apparatus of claim 14 , wherein a first setpoint temperature of a first recipe step of at least one of the recipes differs essentially from a second setpoint temperature of a second recipe step of the at least one of the recipes.16. The cooktop apparatus of claim 14 , wherein a temperature is automatically adjusted based on the selected one of the catalog of recipes by the control unit.17. The cooktop apparatus of claim 14 , wherein the control unit has a timer for starting a second recipe step after a predetermined time period has elapsed after a first recipe step.18. The cooktop apparatus of claim 17 , wherein the control unit outputs an item of time information relating to at least one recipe step by the output unit.19. The cooktop apparatus of claim 17 , wherein the control unit outputs a notification relating to a transition from the first recipe step to the second recipe step by the output unit.20. The cooktop apparatus of claim 14 , wherein the control unit outputs an operating prompt by the output unit.21. The cooktop apparatus of claim 20 , wherein the operating prompt comprises a prompt to lie and/or stand food in position.22. The cooktop apparatus of claim 20 , wherein the operating prompt comprises a prompt to turn food.23. The cooktop apparatus of claim 14 , wherein the control unit deactivates a heating element ...

Magnetic Method for Determining A Cooking Appliance Characteristic

A cooking appliance, an induction cooking hob () and a method () of determining a characteristic of the cooking appliance. The cooking appliance () has vessel () containing a chamber (). There are magnets () mounted to the vessel (), the magnets () provide a code that identifies a characteristic of the cooking appliance (). There is an appliance positioning interlock () for operatively coupling with an appliance positioning interlock engagement member () of the cooking hob () to thereby position the cooking appliance () on the cooking hob () In a predefined location. The cooking hob () has sensors () so that when the appliance () is at the predefined location the sensors () can detect and decode the magnetic field code to identify the characteristic This characteristic is used to define a cooking profile to heat of the appliance to a desired temperature and optionally the appliance is heated for a predefined time. 1. A cooking appliance for use on a cooking hob , the appliance comprising:a cooking vessel containing a chamber therein; anda magnetic key associated with the appliance, said magnetic key comprising a plurality of magnets, each said magnet having a north pole and a south pole,the magnetic key having a magnetic key code determined by the orientation of the poles of said plurality of magnets wherein said magnetic field code identifies at least one characteristic of the cooking appliance.2. The cooking appliance claim 1 , as claimed in claim 1 , wherein the magnetic key is releaseably mountable to the cooking appliance.3. The cooking appliance claim 1 , as claimed in claim 1 , wherein the magnetic key is releaseably mountable to a handle of the cooking appliance.4. The cooking appliance as claimed in claim 1 , wherein the cooking appliance has a cover for covering the chamber and wherein a handle of the cover has a recess for complementary engagement with the magnetic key.5. The cooking appliance as claimed in wherein the magnetic key has a user interface ...

COOKING APPARATUS AND METHOD FOR CONTROLLING THE SAME

A cooking apparatus and a method for controlling the same. The cooking apparatus may include a heating coil operable by an induction heating method, an inverter configured to provide a driving power to the heating coil, a sensing coil positioned at an upper portion or a lower portion of the heating coil, a sensing circuit configured to provide a test power to an end of the sensing coil and sense a magnitude of power that is output at other end of the sensing coil, and a processor configured to identify whether an object to be heated is disposed at an upper portion of the sensing coil based on the magnitude of power sensed by the sensing circuit, and based on the disposition of the object to be heated being identified, control the inverter to apply the driving power to the heating coil. 1. A cooking apparatus comprising:a heating coil operable by an induction heating method;an inverter configured to provide a driving power to the heating coil;a sensing coil positioned at an upper portion or a lower portion of the heating coil;a sensing circuit configured to provide a test power to an end of the sensing coil and sense a magnitude of power that is output at other end of the sensing coil; and identify whether an object to be heated is disposed at an upper portion of the sensing coil based on the magnitude of power sensed by the sensing circuit, and', 'based on the disposition of the object to be heated being identified, control the inverter to apply the driving power to the heating coil., 'a processor configured to2. The cooking apparatus of claim 1 , wherein the processor is further configured to claim 1 , based on the magnitude of power sensed by the sensing circuit exceeding a reference power value in a predetermined frequency range claim 1 , determine that the object to be heated is disposed.3. The cooking apparatus of claim 1 , wherein the processor is further configured to:control the sensing circuit for identifying whether the object to be heated is disposed ...

INDUCTION COOKER AND OPERATION METHOD THEREOF

An induction cooker includes a rectifying device, a first energy-storage device, a switch device, a second energy-storage device, a heating device and a control device. The capacitance of the second energy-storage device is greater than the capacitance of the first energy-storage device. When the induction cooker is just starting, the control device controls the switch device to be turned off, such that the heating device generates an output current according to an energy of the first energy-storage device. The control device determines whether a pot is on the heating device according to a change state of the output current. When the pot is on the heating device, the control device controls the switch device to be turned on, such that the first and second energy-storage devices are coupled, and the heating device heats the pot according to energies of the first and second energy-storage devices. 1. An induction cooker , comprising:a rectifying device, configured to receive an alternating-current voltage and to convert the alternating-current voltage into a direct-current voltage;a first energy-storage device, coupled to the rectifying device and configured to receive the direct-current voltage and to store energy;a switch device, coupled to the first energy-storage device and configured to be controlled by a control signal;a second energy-storage device, coupled to the switch device, wherein the capacitance of the second energy-storage unit is greater than the capacitance of the first energy-storage unit;a first heating device, coupled to the first energy-storage device and the switch device; anda control device, coupled to the switch device and the first heating device, wherein the control device configured to generate the control signal to control the switch device to be turned off, so that the first heating device generates a first output current according to the energy of the first energy-storage device, the control device determines whether a first pot is ...

METHODS AND APPARATUS FOR CONTROLLING A COOKING APPLIANCE

A cooking appliance includes a cooktop having at least one heating element for heating a cookware member on or to be placed on the cooktop, the at least one heating element being adjustable between a working-power level wherein the at least one heating element is energized to generate heat and a zero-power level wherein the at least one heating element is not energized. The cooking appliance further includes a temperature sensor configured to detect a temperature or rate of temperature change of a cooking element. The cooking appliance further includes a control device configured to adjust the at least one heating element from the working-power level to the zero-power level based on the temperature or rate of temperature change of the cooking element. The at least one heating element will remain at the zero-power level until a user intervenes to re-energize the at least one heating element. 1. A cooking appliance comprising:a cooktop having at least one heating element for heating a cookware member on or to be placed on the cooktop, the at least one heating element being adjustable between a working-power level wherein the at least one heating element is energized to generate heat and a zero-power level wherein the at least one heating element is not energized;a temperature sensor configured to detect a temperature or rate of temperature change of a cooking element; anda control device configured to adjust the at least one heating element from the working-power level to the zero-power level based on the temperature or rate of temperature change of the cooking element, wherein the at least one heating element will remain at the zero-power level until a user intervenes to re-energize the at least one heating element.2. The cooking appliance according to claim 1 , wherein in response to the temperature of the cooking element being equal to or above a threshold temperature claim 1 , the control device is configured to adjust the at least one heating element from the ...

INCREASE RESISTANCE FOR EFFICIENT HEATING

Conductors for use in heating systems are provided. The conductors are configured to have an extended current path for the current and increased resistance as seen by the current. The heating system may be an induction system. For example, the conductor may comprise a conductive material having a surface which faces an induction coil of an oscillating circuit. This surface may have a predetermined pattern of peaks and valleys. The peaks and valleys form a non-linear current path for the induced current when exposed to an electromagnetic field generated by the oscillating circuit. Other conductors such as a heat pipe may be used. The pipe may have walls with varying thicknesses over its length. The varying thicknesses may include a first thickness and a second thickness which alternate. The heat pipe may be used in an induction or direct contact heating system where AC is directly applied to the pipe. 113.-. (canceled)14. A conductive pipe comprising:a wall, where a thickness of the wall varies over a length of the conductive pipe from a first end to a second end, the wall having at least a first thickness and a second thickness different from the first thickness, where the first thickness and the second thickness alternate, the wall having the first thickness and the second thickness form a non-linear current path for current.15. The conductive pipe of claim 14 , wherein the conductive pipe is configured to be exposed to an oscillating circuit having an induction coil claim 14 , the oscillating circuit being configured to generate an electromagnetic field having an oscillating frequency claim 14 , and wherein the non-linear current path is for induced current to flow when exposed to the electromagnetic field generated by the oscillating circuit.16. The conductive pipe of claim 14 , wherein the current is alternating current (AC) which is applied by connecting cables.17. The conductive pipe of claim 14 , wherein the wall comprises an internal surface and an external ...

SOFTWARE APPLICATION FOR COOKING

A software application for generating cooking instructions for a food item can comprise an input module identifying the food item, a query module to query a cooking instruction database based on the input and return cooking instructions for the food item, and an output module to output the cooking instructions. 1. A software application for generating cooking instructions for a food item , the software application comprising:an input module comprising executable instructions to receive an input identifying the food item;a query module comprising executable instructions to query a cooking instruction database based on the input and return cooking instructions for the food item;a conversion module comprising executable instructions that convert the cooking instructions to modified cooking instructions; andan output module comprising executable instructions outputting the modified cooking instructions.2. The software application of further comprising a display module configured to display the modified cooking instructions.3. The software application of wherein the modified cooking instructions are further modified by user input to create custom cooking instructions.4. The software application of wherein the custom cooking instructions are transmitted to an appliance.5. The software application of wherein the modified cooking instructions are transmitted to an appliance.6. The software application of wherein the appliance comprises one of an oven claim 5 , toaster oven claim 5 , cooktop claim 5 , or microwave.7. The software application of wherein the input comprises a barcode.8. The software application of wherein the conversion module converts cooking instructions including a preheat step into modified cooking instructions that do not include a preheat step.9. The software application of further comprising a remote start module for remote starting an appliance by user input.10. The software application of wherein the conversion module converts multiple-step cooking ...

Method for Controlling an Induction Heating System

A method for controlling an induction heating system, particularly an induction heating system of a cooktop on which a cooking utensil with a certain contents is placed for heating/cooking purposes, comprises the steps of carrying out a predetermined number “n” of electrical measurements of a first electrical parameter of the heating system on the basis of a predetermined electrical value of a second electrical parameter, “n” being ≥2, repeating the above set of measurements at a predetermined time after the first measurements, and estimating at least one thermal parameter of the heating system, particularly of the contents of the cooking utensil, on the basis of the above set of measurements. 1. An induction heating system , wherein , during a cooking process for a cooking utensil and contents of the cooking utensil , the induction heating system is configured to:perform a predetermined number n of electrical measurements of a first electrical parameter of the induction heating system, n being ≥2, to obtain a first set of measurements;repeat the above set of measurements after a predetermined time interval to obtain a second set of measurements; andestimate at least one thermal parameter of the induction heating system or the contents of the cooking utensil using the first and second sets of measurements.2. The induction heating system of claim 1 , wherein each measurement of the first electrical parameter is carried out at a predetermined electrical value of a second electrical parameter.3. The induction heating system of claim 2 , wherein the induction heating system is configured to perform the predetermined number n of electrical measurements or repeat the above set of measurements by: 1) making a first electrical measurement of the first electrical parameter at a first value of the second electrical parameter; and 2) making a second electrical measurement of the first electrical parameter at a second claim 2 , different value of the second electrical parameter ...

INDUCTION HOLDING, WARMING, AND COOKING SYSTEM HAVING IN-UNIT MAGNETIC CONTROL

An induction-based food holding, warming, or cooking system. The system including a base having a based surface associated therewith. The system further including an induction coil disposed within the base adjacent the base surface, wherein the portion of the base surface adjacent the coil comprises a base surface. The system further including a user interface associated with the base surface, the user interface including at least one magnetic sensor for receiving a user input from a magnetic user input device. 1. An induction-based food holding , warming , or cooking system , comprising:a base having a based surface associated therewith;an induction coil disposed within the base adjacent the base surface, wherein the portion of the base surface adjacent the coil comprises a base surface; anda user interface associated with the base surface, the user interface including at least one magnetic sensor for receiving a user input from a magnetic user input device.2. The system of claim 1 , wherein the user input is a temperature adjustment.3. The system of claim 1 , wherein the user input is a power control.4. The system of claim 1 , wherein the magnetic sensor is a Hall effect sensor.5. The system of claim 1 , wherein the magnetic sensor is a magnetic reed switch.6. The system of claim 1 , wherein the magnetic user input device includes a magnet.7. An induction-based food holding claim 1 , warming claim 1 , or cooking system claim 1 , comprising:a base having a base surface associated therewith;an induction coil disposed within the base adjacent the base surface, wherein the portion of the base surface adjacent the coil comprises a base surface; anda user interface associated with the base surface, wherein the user interface permits adjustment of the induction-based food holding, warming, or cooking system using a contactless input device.8. The system of claim 7 , wherein the user interface includes a temperature adjustment control.9. The system of claim 7 , wherein ...

COOKTOP APPLIANCE

A cooktop appliance includes an electric heating element positioned on a cooktop surface and a controller operably connected thereto. The controller is configured for monitoring a temperature with a temperature sensor, adjusting a power level of the electric heating element based at least in part on the monitored temperature over a first period of time, and deactivating the electric heating element for a second period of time based at least in part on the monitored temperature. The controller is also configured for storing the first period of time, an average power level over the first period of time, and the second period of time in a memory. When the controller detects a disconnection of the temperature sensor, the controller operates the heating element at the stored average power level for the stored first period of time and deactivates the heating element for the stored second period of time. 1. A cooktop appliance , comprising:an electric heating element positioned on a cooktop surface of the cooktop appliance; and generating a temperature setting;', 'initiating a preheat cycle, the preheat cycle comprising operating the electric heating element at a predetermined power level corresponding to the temperature setting and monitoring a temperature with a temperature sensor until the monitored temperature reaches the temperature setting;', 'initiating a duty cycle when the monitored temperature reaches the temperature setting, the duty cycle comprising monitoring the temperature with the temperature sensor, calculating a difference between the monitored temperature and the temperature setting, operating the electric heating element over a first period of time at multiple distinct power levels based at least in part on the calculated difference between the monitored temperature and the temperature setting, and deactivating the electric heating element for a second period of time based at least in part on the calculated difference between the monitored temperature ...

System and method for device identification

An inductive power supply system includes a non-contact power supply for energizing a device. The inductive power supply system includes a communication system for enabling communication between a device and the system. The device transmits an identifier to the system. If the device does not have a transmitter, the system attempts to determine the type of device from a characterization of the power consumption by the device. If the device cannot be characterized, the inductive power supply system can be operated manually.

Cooking Temperature and Power Control

A system and method for controlling the power delivered to cookware by a power control system that comprises a heating control user interface that is set by the user to a particular heating control user interface set point within an operating range. A controller derives from the heating control user interface set point a desired cookware temperature set point, and, over at least a first portion of the operating range that encompasses the boiling range, also derives from the heating control user interface set point a maximum limit of power that can be delivered to the cookware to maintain the cookware at the desired cookware temperature set point. The maximum power limit varies monotonically over the first portion of the operating range. 1. A device configured to operate , over an operating range , a cooking system used for heating a cooking utensil , where the cooking system comprises a temperature sensor that senses a temperature of the cooking utensil , the device comprising:a controller that is input with the sensed temperature of the cooking utensil and a particular temperature representing the boiling point;wherein the controller is configured to determine, based on the sensed temperature of the cooking utensil and the particular temperature representing the boiling point, a command to control the heating of the cooking utensil, so as to maintain the cooking temperature at the particular temperature representing the boiling point, and output the command to the cooking system; andwherein the controller, over a portion of the operating range that encompasses the boiling point, determines a maximum limit of the power that can be delivered to the cookware to maintain the cookware at a desired cookware temperature set point, wherein the maximum power limit over the first portion of the operating range increases as the control is turned up.2. A device configured to operate a cooking system that delivers power to heat cookware , controllable from zero power up to 100% ...

SYSTEM AND METHOD FOR OPERATING AN INDUCTION COOKER

A system for controlling the operation of an induction cooker includes a controller of the induction cooker and a personal electronic device. The controller may be communicatively coupled to a weight sensor of the induction cooker, and the controller may be configured to determine a weight of a food item within a cookware item that is positioned on the induction cooker. The personal electronic device may be in communication with the controller such that the personal electronic device may receive data indicating the determined weight of the food item. The system and related method for controlling the operation of the induction cooker includes determining, by the controller, the weight of the food item. The system and related method further include automatically adjusting the operation of the induction cooker based, at least in part, on the determined weight of the food item. 1. A method for controlling the operation of an induction cooker , the method comprising:determining, by a controller of the induction cooker, a weight of a cookware item positioned on the induction cooker;determining, by the controller of the induction cooker, a weight of a food item disposed within the cookware item; andautomatically adjusting the operation of the induction cooker based, at least in part, on the determined weight of the food item.2. The method of claim 1 , wherein automatically adjusting the operation of the induction cooker includes automatically adjusting a cooking parameter of the induction cooker based claim 1 , at least in part claim 1 , on the determined weight of the food item.3. The method of claim 2 , wherein the cooking parameter is selected via a control panel of the induction cooker.4. The method of claim 2 , wherein the cooking parameter includes at least one of a cook time and a heating level.5. The method of claim 4 , wherein automatically adjusting the cooking parameter includes adjusting the cook time.6. The method of claim 4 , wherein automatically adjusting ...

COOKING APPLIANCE

A cooking appliance apparatus includes an inductor, an inverter to supply a high-frequency heating current for the inductor, and a switch to break and/or establish at least one conduction path between the at least one inverter and the at least one inductor. A control unit is provided to deactivate the inverter during a first time interval and to initiate a switching of the switch, with the switching starting and ending within a second time interval, which in a normal operating state is arranged within the at least one first time interval and which in an incorrect operating state has at least one time point, which lies outside the at least one first time interval. The control unit is configured to match the first time interval and the second time interval dynamically to one another. 112-. (canceled)13. A cooking appliance apparatus , comprising:at least one inductor;at least one inverter configured to supply a high-frequency heating current for the at least one inductor;at least one switch configured to break and/or establish at least one conduction path between the at least one inverter and the at least one inductor; anda control unit configured to deactivate the at least one inverter during at least one first time interval and to initiate a switching of the at least one switch, with the switching starting and ending within at least one second time interval, which in a normal operating state is arranged within the at least one first time interval and which in an incorrect operating state has at least one time point, which lies outside the at least one first time interval, said control unit being configured to match the at least one first time interval and the at least one second time interval dynamically to one another.14. The cooking appliance apparatus of claim 13 , constructed in the form of an induction cooktop apparatus.15. The cooking appliance apparatus of claim 13 , wherein the control unit is configured to change at least one parameter of the at least one ...

SYSTEM FOR IMPLEMENTING COOKING INSTRUCTIONS

A system of networked appliances for implementing cooking instructions for a prepackaged food item in a cooking appliance includes an imaging device configured to read an input associated with the prepackaged food item, a cooking instruction database comprising a list of prepackaged food cooking instructions, and a query module comprising executable instructions to query the cooking instruction database based on the input and return cooking instructions for the prepackaged food item. 1. A system of networked appliances for implementing cooking instructions for a prepackaged food item in a cooking appliance , comprising:an imaging device configured to read an input associated with the prepackaged food item;a cooking instruction database comprising a list of prepackaged food cooking instructions;a query module comprising executable instructions to query the cooking instruction database based on the input and return cooking instructions for the prepackaged food item;a conversion module comprising executable instructions that convert the cooking instructions to modified cooking instructions; andat least one appliance configured to receive the modified cooking instructions.2. The system of further comprising a transmission module comprising executable instructions to transmit the modified cooking instructions to multiple appliances.3. The system of wherein one of the multiple appliances communicates an operations state to another of the multiple appliances.4. The system of further comprising a mobile device configured to modify the modified cooking instructions by user input to create custom cooking instructions.5. The system of further comprising a custom library configured to store the custom cooking instructions.6. The system of wherein the mobile device remote starts the at least one appliance.7. The system of wherein the conversion module converts multiple-step cooking instructions into single-step cooking instructions.8. The system of wherein the at least one ...

INDUCTION HEATING DEVICE HAVING IMPROVED OUTPUT CONTROL FUNCTION

An induction heating device includes a working coil, an inverter including a first switching element and a second switching element that are configured to perform a switching operation and to apply a resonance current to the working coil, a snubber capacitor including a first snubber capacitor connected to the first switching element, and a second snubber capacitor connected to the second switching element, a phase detector configured to detect a phase difference between the resonance current applied to the working coil and a switching voltage applied to the second switching element, and a controller configured to receive, from the phase detector, phase information including the phase difference, provide the inverter with a switching signal to thereby control the switching operation, and adjust an operating frequency of the switching signal based on the phase information to thereby control an output of the working coil. 1. An induction heating device , comprising:a working coil;an inverter comprising a first switching element and a second switching element that are configured to perform a switching operation and to apply a resonance current to the working coil based on the switching operation;a snubber capacitor comprising a first snubber capacitor electrically connected to the first switching element, and a second snubber capacitor electrically connected to the second switching element;a phase detector electrically connected between the inverter and the working coil, the phase detector being configured to detect a phase difference between the resonance current applied to the working coil and a switching voltage applied to the second switching element; and receive, from the phase detector, phase information including the phase difference,', 'provide the inverter with a switching signal to thereby control the switching operation, and', 'adjust an operating frequency of the switching signal based on the phase information to thereby control an output of the working ...

Method for determining a pan position of a pan on a hob, and hob

A hob has a hob plate for putting a pan having a remote communication device thereon and multiple heating devices under said hob plate, a hob controller and a main communication device having a transmitter and a receiver for communicating with the pan to measure a distance between itself and the remote communication device. Said main communication device belongs to the hob controller and is designed to use a Bluetooth communication protocol and to receive an individual identifier of the remote communication device and to store the latter in the hob controller. The hob and the main communication device are switched on and a pan having a remote communication device is put onto the hob plate, this being detected. The distance between the main communication device and the remote communication device of the pan is then measured, and the pan position of the pan on the hob is thus determined. This pan position is stored along with the individual identifier of the remote communication device in the hob controller.

INDUCTION-BASED HEAT RETENTIVE SERVER

A heat retentive server includes a chamber defined between an upper shell and a lower shell that are connected to one another. An induction-heatable member is positioned in the chamber, and the induction-heatable member may be heated by electromagnetic induction to a first temperature that is greater than the heat deflection temperature of the upper shell. Buffering material comprising an inhibitively conductive hydrophobic material is positioned in the chamber between the induction-heatable member and the upper shell, and the buffering material is adapted for providing predetermined conductive heat transfer from the induction-heatable member to the upper shell so that at least a portion of the upper shell is heated to a second temperature that is greater than the heat deflection temperature of the upper shell. The second temperature is less than the first temperature. 1. A heat retentive server comprising:a body having a chamber, an upper shell and a lower shell that are connected to one another, the chamber being defined between the upper shell and the lower shell, and a heat deflection temperature;an induction-heatable member positioned in the chamber, the induction-heatable member being heatable by electromagnetic induction to a first temperature that is greater than the heat deflection temperature of the body; anda buffering material positioned between the induction-heatable member and the upper shell, the buffering material comprising an inhibitively conductive hydrophobic material and enveloping the induction-heatable member, the buffering material providing predetermined conductive heat transfer from the induction-heatable member to the body so that at least a portion of the body is heated to a second temperature that is greater than the heat deflection temperature of the body in response to the induction-heatable member being heated by electromagnetic induction to the first temperature, and the second temperature is less than the first temperature2. The ...

Method for regulating a cooking process

The invention relates to a method for regulating a cooking process using an item of cookware having inductive properties on a cooking area, wherein a coil is arranged as part of an LC resonant circuit in the region of the cooking area and the natural frequency of the LC resonant circuit is measured repeatedly or continuously. The invention also relates to a cooking apparatus having at least one cooking area, a temperature sensor, a power controller, an LC resonant circuit having a coil, which is arranged in, around or in the region of the cooking area, and a controller, which is connected to the temperature sensor and a unit for measuring the frequency of the LC resonant circuit and which is programmed to carry out method, wherein the controller has access to a memory for storing the mathematically determined parameter function or vector function. 1. A method for regulating a cooking process using an item of cookware having inductive properties on a cooking area , wherein a coil is arranged as part of an LC resonant circuit in a region of the cooking area and a natural frequency of the LC resonant circuit is measured repeatedly or continuously , said method having the following method steps:A) alternately heating the cooking area with at least two different target powers, wherein during this process a temperature at a bottom of the item of cookware is repeatedly or continuously measured using a temperature sensor to generate a measured temperature profile and said natural frequency of the LC resonant circuit is repeatedly or continuously measured;B) determining a parameter function or vector function from the measured temperature profile over time of the temperature sensor and from the frequency of the LC resonant circuit depending on the time and depending on the least two target powers; andC) conducting the cooking process depending on the parameter function or vector function determined in method step B) and depending on the frequency of the LC resonant circuit ...

TEMPERATURE SENSOR ASSEMBLY FOR INDUCTION COOKTOP

An induction cooking apparatus including a cooktop panel, induction coil, controller, and temperature sensor assembly. A temperature sensor and guiding support are positioned in sliding engagement in an opening in the center of the induction coil where an upper end of the temperature sensor sits above a top surface of the induction coil. The controller includes a first circuit board that supplies electricity to the induction coil. A second circuit board, separate from the first circuit board, is electrically connected to the temperature sensor and includes a cantilevered leaf-spring structure that supports the temperature sensor. The guiding support is a load bearing structure that transmits a biasing force created by deflection of the cantilevered leaf-spring structure to the temperature sensor, which operates to hold the temperature sensor in contact with a lower surface of the cooktop panel. 1. An induction cooking apparatus comprising:an induction coil with a top surface;a controller including a first circuit board that is electrically connected to said induction coil and that is configured to supply electricity to said induction coil;a temperature sensor having an upper end that sits above said top surface of said induction coil; anda second circuit board, separate from said first circuit board, that is electrically connected to said temperature sensor, said second circuit board including a cantilevered leaf-spring structure that supports said temperature sensor.2. The induction cooking apparatus as set forth in claim 1 , wherein said second circuit board includes a substrate and said cantilevered leaf-spring structure is integral with said substrate of said second circuit board.3. The induction cooking apparatus as set forth in claim 2 , further comprising:a cooktop panel positioned above said induction coil,said cooktop panel having an upper surface and a lower surface; andsaid substrate of said second circuit board being made of a resilient material such ...

SYSTEM AND METHOD FOR DETECTING VESSEL PRESENCE FOR AN INDUCTION HEATING APPARATUS

Systems and methods for detecting vessel presence for an induction heating apparatus are disclosed. A detector circuit generates an output signal based on a feedback signal corresponding to a signal, such as current, flowing through an induction heating coil. The output signal has low frequency components that are averaged over multiple integer periods and compared to a reference value to determine the presence or absence of a vessel on the induction heating coil. 1. An induction heating system , comprising:an induction heating coil operable to inductively heat a load with a magnetic field;a power supply circuit configured to supply a power signal to said induction heating coil at a relatively high operating frequency; anda detector circuit configured to detect a feedback signal corresponding to a signal flowing through said induction heating coil, said detector circuit providing an output signal having an amplitude dependent on the presence of a vessel proximate said induction heating coil, the amplitude of the output signal determining vessel presence.2. The induction heating system of claim 1 , wherein said detector circuit comprises a shunt resistor in a path of the signal flowing through said induction heating coil claim 1 , said feedback signal comprising a voltage across said shunt resistor.3. The induction heating system of claim 1 , wherein said detector circuit further includes a filter configured to minimize the relatively high frequency signal components of the feedback signal and to pass relatively low frequency ripple components of the feedback signal.4. The induction heating system of claim 3 , wherein said detector circuit further comprises an averaging circuit configured to average the relatively low frequency ripple components of the feedback signal and a comparator configured to compare the averaged relatively low frequency ripple components of the feedback signal feedback signal to a reference signal claim 3 , the output of said comparator ...

METHOD FOR DETECTING THE IDENTITY OF A POT ON A COOKING POINT OF A HOB AND SYSTEM OF A HOB WITH A POT

A set of a hob with a hob plate and a cooking point at the hob plate together with a pot, wherein the hob has at least one heating element placed underneath the hob plate and wherein the cooking point is provided with a pot sensing means for detecting presence of a pot on the cooking point, wherein the hob also has a control and receiving means connected to the control, wherein the pot is provided with a temperature sensor and a transmitter attached to it, wherein the transmitter is transmitting at least two sets of data, wherein the first set of data is an individual pot identifier and the second set of data is related to the temperature state of the pot being measured by the temperature sensor. 1. A method for detecting the identity of a pot on a cooking point of a hob with a hob plate , wherein said hob comprises at least one heating element placed underneath said hob plate , said cooking point being provided with a pot sensing means for detecting a pot present on said cooking point and being connected to a hob control comprising a receiver , wherein a temperature sensor and a transmitter are attached to said pot , the method comprising:transmitting, via said transmitter, at least two sets of data to said receiver and to said hob control, wherein a first set of data is an individual pot identifier and a second set of data is related to a temperature state of said pot measured by said temperature sensor;defining a power profile template for said heating element and in an instance in which said pot sensing means has detected a presence of any pot, said heating element is activated with said power profile template to provoke a temperature change in said pot present on it, wherein a given delay due to a thermal capacitance of said pot is given;detecting, via said temperature sensor at said pot, with said delay, a profile of said power represented in said temperature change; andsending temperature information via said transmitter back to said hob control to determine ...

ELECTROMAGNETIC HEATING SYSTEM, METHOD AND DEVICE FOR CONTROLLING THE SAME

The present disclosure discloses a method for controlling an electromagnetic heating system, including: obtaining a target heating power of the electromagnetic heating system; determining whether the target heating power is less than a preset power; and when the target heating power is less than the preset power, controlling, in each control period, a resonance circuit of the electromagnetic heating system to enter into a discharging stage, a heating stage, and a stop stage successively, in which in the discharging stage, a power switch transistor of the resonance circuit is driven by a first driving voltage such that the power switch transistor works in an amplification state. In this way, a pulse current of the power switch transistor may be restrained, and a low power heating is realized by using a heating mode with a millisecond duty ratio. The present disclosure further discloses a device for controlling an electromagnetic heating system and an electromagnetic heating system. 1. A method , comprising:obtaining a target heating power of an electromagnetic heating system;determining whether the target heating power is less than a preset power; andwhen the target heating power is less than the preset power, controlling, in each control period, a resonance circuit of the electromagnetic heating system to enter into a discharging stage, a heating stage, and a stop stage successively, wherein a power switch transistor of the resonance circuit is driven by a first driving voltage in the discharging stage, wherein the power switch transistor functions in an amplification state.2. The method according to claim 1 , wherein claim 1 ,in the heating stage, the power switch transistor is driven by the first driving voltage to switch on for a preset period, and the power switch transistor is driven by a second driving voltage to switch on the power switch transistor, wherein the power switch transistor functions in a saturation state; andin the stop stage, the power switch ...

COOK TOP HAVING AT LEAST ONE COOKING ZONE AND METHOD FOR OPERATING A COOK TOP

In a method for operating a cooking zone of a cook top, wherein the cooking zone is formed by at least two cooking sub-zones and each cooking sub-zone can be heated by at least one heating unit, with the heating units arranged adjacent to each other without overlapping such that a cohesive heatable surface is formed during a joint operation of the cooking sub-zones, detection of an occupancy of a cooking sub-zone by at least one food preparation vessel is activated in a first operating mode and a same electrical power is supplied to all activated cooking sub-zones occupied by a food preparation vessel. 1. A method for operating a cooking zone of a cooktop , with the cooking zone being formed from at least two cooking sub-zones and each cooking sub-zone being heatable by at least one heating unit , wherein the heating unit of one cooking sub-zone and the heating unit of another cooking sub-zone are disposed adjacent to one another without overlapping , such that a cohesive heatable surface is formed during joint operation of the cooking sub-zones , said method comprising:activating detection of an occupancy of a cooking sub-zone by at least one food preparation vessel in a first operating mode when the cooking sub-zones can be operated as a joint cooking zone; andsupplying a same electrical power to all activated cooking sub-zones occupied by a food preparation vessel,wherein in the first operating mode the cooking sub-zones not occupied by a food preparation vessel are deactivated and remain deactivated, even in the presence of a food preparation vessel placed on the deactivated cooking sub-zones after expiration of an initial occupancy detection phase, until reactivation of a subsequent occupancy detection phase that is initiated by a user, andthe subsequent occupancy detection phase can only be initiated by the user.2. The method of claim 1 , further comprising operating each of the cooking sub-zones independently of one another as a separate cooking zone in a ...

FOOD PREPARATION SYSTEM

A food preparation system includes a food treatment unit having a food treatment function, a functional unit having an auxiliary function associated with the food treatment function, and a control unit provided to cause execution of a recipe and to control the food treatment function and the auxiliary function in an open-loop and/or closed-loop manner when guided by the recipe. 115-. (canceled)16. A food preparation system , comprising:a food treatment unit having a food treatment function;a functional unit having an auxiliary function associated with the food treatment function; anda control unit provided to cause execution of a recipe and to control the food treatment function and the auxiliary function in an open-loop and/or closed-loop manner when guided by the recipe.17. The food preparation system of claim 16 , wherein the control unit automatically sets operating parameters required to reach a predefined target value claim 16 , when controlling the food treatment function and/or the auxiliary function in the open-loop and/or closed-loop manner.18. The food preparation system of claim 16 , wherein the control unit is provided to output an information item before activating the food treatment function and/or the auxiliary function.19. The food preparation system of claim 16 , wherein the control unit is provided to activate the food treatment function and/or the auxiliary function as a function of an operating input.20. The food preparation system of claim 16 , further comprising a further functional unit having a further auxiliary function claim 16 , which the control unit controls in an open-loop and/or closed-loop manner when guided by the recipe.21. The food preparation system of claim 16 , wherein the control unit is provided to cause execution of a further recipe step of the recipe while performing the auxiliary function.22. The food preparation system of claim 16 , wherein the control unit controls the food treatment function and the auxiliary function ...

Induction Cooker, Method and Computer Program Product for Adjusting Air Gap for Induction Coil

Induction cooker comprising an induction coil, a supporting structure, a ferromagnetic element and a non-ferromagnetic element. The induction coil is arranged to receive a varying electric current and produce a corresponding varying electromagnetic field. The supporting structure arranged to support a ferromagnetic object above the induction coil, the ferromagnetic object being placed in the corresponding varying electromagnetic field to be magnetically coupled to the induction coil, thereby determining a mutual inductance between the induction coil and the ferromagnetic object. The ferromagnetic element and the non-ferromagnetic element are arranged to be located between the supporting structure and the induction coil and selectively move in the corresponding varying electromagnetic field based on a mutual inductance between the induction coil and the ferromagnetic object. 1. An induction cooker comprising:an induction coil, which is arranged to receive a varying electric current and produce a corresponding varying electromagnetic field;a supporting structure, which is arranged to support a ferromagnetic object above the induction coil, the ferromagnetic object being placed in the corresponding varying electromagnetic field to be magnetically coupled to the induction coil, thereby determining a mutual inductance between the induction coil and the ferromagnetic object;a ferromagnetic element and a non-ferromagnetic element, which are arranged to be located between the supporting structure and the induction coil,wherein:the ferromagnetic element and/or the non-ferromagnetic element are arranged to selectively move in the corresponding varying electromagnetic field based on the mutual inductance between the induction coil and the ferromagnetic object.2. The induction cooker of claim 1 , wherein the ferromagnetic element and the non-ferromagnetic element are arranged to move horizontally and/or vertically.3. The induction cooker of claim 1 , wherein the ferromagnetic ...

COOKING ENGAGEMENT SYSTEM WITH AUTOMATIC COOKTOP MONITORING

A cooking engagement system and methods therefore are provided. The method includes obtaining image data of the cooktop surface and displaying a first user interface at an interactive assembly associated with the appliance. The first user interface displays the image data of the cooktop surface. The method further includes determining that cookware is present on the cooktop surface based on the image data, and displaying a second user interface at the interactive assembly. The second user interface displays an enlarged image of the cookware based on determining that the cookware is present on the cooktop surface. 1. A method of automatic monitoring of a cooktop surface of an appliance , comprising:obtaining, by one or more processors, image data of the cooktop surface;providing for display, by the one or more processors, a first user interface at an interactive assembly associated with the appliance, the first user interface displaying the image data of the cooktop surface;determining, by the one or more processors, that cookware is present on the cooktop surface based on the image data; andproviding for display, by the one or more processors, a second user interface at the interactive assembly, the second user interface displaying an enlarged image of the cookware based on determining that the cookware is present on the cooktop surface.2. The method of claim 1 , further comprising:determining, by the one or more processors, that cookware on the cooktop surface has changed; andproviding for display, by the one or more processors, a third user interface at the interactive assembly, the third user interface displaying an enlarged image of a change in cookware based on determining that the cookware on the cooktop surface has changed.3. The method of claim 2 , wherein determining claim 2 , by the one or more processors claim 2 , that the cookware on the cooktop surface has changed comprises determining that cookware has been added claim 2 , removed claim 2 , or changed ...

VERSATILE INDUCTION HOB

Induction hob provided with a frequency converter and parallel branches, departing from the output of the converter. Each branch includes a switch and an inductor. The hob also comprises a configurable contact to enable an electrical connection of a first intermediate terminal between the first inductor and the first switch in the first branch (A) and a second intermediate terminal between the second inductor and the second switch in the second branch. The hob, depending on the configuration of the switches, can operate each of the two inductors alone, or in parallel connection, or in series connection. 1. An induction hob comprising a frequency converter and:a first branch departing from an output of the frequency converter and which includes a first switch in series with a first inductor, said first branch ending with a first end terminal, the first end terminal being in electric contact with at least a first capacitive element as to form a first resonant circuit,a second branch departing from the output of the frequency converter and which includes in a reverse order compared to the first branch a second inductor in series with a second switch, said second branch ending with a second end terminal, the second end terminal being in electrical contact with at least a second capacitive element as to form a second resonant circuit,wherein the hob comprises a first configurable contact to enable an electrical connection of a first intermediate terminal between the first inductor and the first switch in the first branch and a second intermediate terminal between the second inductor and the second switch in the second branch, so that the hob is configured to operate, in conjunction with the configuration of the first switch and of the second switch, with the first inductor alone or with the second inductor alone, or with the first inductor and the second inductor in a series connection, or with the first inductor and the second inductor in a parallel connection.2. The ...

METHOD FOR OPERATING AN INDUCTION HOB, AND INDUCTION HOB

In order to heat water in a cooking vessel which is placed above at least one induction heating coil of an induction hob, a controller drives the induction heating coil with a prespecified relatively high power density. During the heating, operating parameters of the induction heating coil are detected and evaluated by the controller in order to monitor a relative temperature profile of the temperature of a cooking vessel base. As soon as this relative temperature profile levels off to a considerable extent or a gradient of the relative temperature profile decreases, the controller identifies this and determines this as the situation of a “lightly boiling” state and of a temperature of a top side of the cooking vessel base which is 5° C. to 15° C. below the boiling point being reached. The power density is then automatically reduced for a predetermined hold time, wherein an operator can maintain this state or, after a certain time, heating up can be performed to a greater extent again automatically. 1. A method for operating an induction hob in order to heat water in a cooking vessel being placed above at least one induction heating coil of said induction hob , said method comprising:driving, via a controller of said induction hob, said at least one induction heating coil to inductively heat said cooking vessel which has been put into place with a prespecified power density;during said heating of said cooking vessel, operating parameters of said at least one induction heating coil are detected and evaluated by said controller in order to monitor a relative temperature profile of said temperature of a cooking vessel base of said cooking vessel;identifying, via the controller, as soon as said relative temperature profile of said cooking vessel base levels off to a significant extent or a gradient of said relative temperature profile decreases, and determines this as a situation of a lightly boiling state and of a temperature of a top side of said cooking vessel base ...

COOKING APPLIANCE DEVICE HAVING A SELF-CONTROLLING BYPASSING UNIT

A cooking appliance apparatus includes at least one mechanical switch, and at least one driver circuit configured to activate the at least one mechanical switch. The at least one driver circuit includes a protection unit and a bypassing unit, which bypasses the protection unit at least partially in at least one operating state. The bypassing unit is configured as self-controlling. 112-. (canceled)13. A cooking appliance apparatus , comprising:at least one mechanical switch; andat least one driver circuit configured to activate the at least one mechanical switch, said at least one driver circuit comprising a protection unit and a bypassing unit configured to bypass the protection unit at least partially in at least one operating state, said bypassing unit being configured as self-controlling.14. The cooking appliance apparatus of claim 13 , constructed in the form of a cooktop apparatus.15. The cooking appliance apparatus of claim 13 , wherein the bypassing unit includes at least two bypassing connectors and at least one control connector.16. The cooking appliance apparatus of claim 13 , wherein the bypassing unit is configured as current-controlled.17. The cooking appliance apparatus of claim 15 , wherein the bypassing unit is configured to bypass the protection unit at least partially in the presence of an at least essentially vanishing current strength through the at least one control connector.18. The cooking appliance apparatus of claim 13 , wherein the bypassing unit includes at least one energy storage unit configured to define at least one parameter for bypassing the protection unit in at least one operating state.19. The cooking appliance apparatus of claim 18 , wherein the at least one parameter is defined by a bypassing time period.20. The cooking appliance apparatus of claim 13 , further comprising a control unit configured to supply at least one control signal to control a switching state of the at least one mechanical switch.21. The cooking appliance ...

INDUCTION HEATING AND WIRELESS POWER TRANSFERRING DEVICE HAVING IMPROVED TARGET OBJECT DETECTION ALGORITHM

An induction heating and wireless power transferring device that includes: a first working coil and a second working coil that are coupled in parallel; a rectification unit configured to rectify alternating current (AC) power to direct current (DC) power; a first inverter unit configured to convert the DC power into resonant current, and apply the converted resonant current to the first working coil or the second working coil; a first switch coupled to the first working coil and configured to turn on or off the first working coil; a second switch coupled to the second working coil and configured to turn on or off the second working coil; and a control unit configured to control the first inverter unit, the first switch, or the second switch to detect whether a target object is located on the first working coil or the second working coil. 1. An induction heating and wireless power transferring device comprising:a first working coil unit that includes a first working coil and a second working coil that are coupled in parallel;a rectification unit that is configured to rectify alternating current (AC) power supplied from a power supply unit to direct current (DC) power;a first inverter unit that is configured to (i) receive the DC power from the rectification unit, (ii) convert the DC power into resonant current, and (iii) apply the converted resonant current to at least one of the first working coil or the second working coil;a first switch that is coupled to the first working coil and that is configured to turn on or off the first working coil;a second switch that is coupled to the second working coil and that is configured to turn on or off the second working coil; anda control unit that is configured to control at least one of the first inverter unit, the first switch, or the second switch to detect whether a target object is located on the first working coil or the second working coil.2. The induction heating and wireless power transferring device of claim 1 , ...

SUPPORT STRUCTURE FOR OBJECT TO BE HEATED

Disclosed is a support structure for an induction heating device that includes a working coil configured to heat an object. The support structure includes: a housing including an upper surface that is recessed do inward and that is configured to seat the object; a repeating coil that is located inside of the housing, that is configured to generate magnetic induction or magnetic resonance with the working coil, and that is configured to heat the object on the upper surface of the housing based on magnetic induction or magnetic resonance with the working coil; and a compensation capacitor located inside of the housing and connected to the repeating coil, where the compensation capacitor is configured to control output of the repeating coil. 1. A support structure for an induction heating device that includes a working coil configured to heat an object , the support structure comprising:a housing including an upper surface that is recessed downward and that is configured to seat the object;a repeating coil that is located inside of the housing, that is configured to generate magnetic induction or magnetic resonance with the working coil, and that is configured to heat the object on the upper surface of the housing based on magnetic induction or magnetic resonance with the working coil; anda compensation capacitor located inside of the housing and connected to the repeating coil, the compensation capacitor being configured to control output of the repeating coil.2. The support structure of claim 1 , wherein the repeating coil is arranged vertically between the working coil and a lowermost end of the object.3. The support structure of claim 1 , wherein the induction heating device further includes a resonance capacitor connected to the working coil claim 1 , andwherein a capacitance value of the compensation capacitor is less than half of a capacitance value of the resonance capacitor.4. The support structure of claim 1 , further comprising:a temperature sensor located ...

INDICATOR AND INDUCTION HEATING DEVICE COMPRISING THE SAME

An indicator for an induction heating device including a working coil, the indicator that includes: a magnetic flux sensing coil that is configured to (i) sense magnetic flux generated in a state in which the working coil is driven and (ii) convert the sensed magnetic flux into current; a rectifying portion that is configured to rectify current converted by the magnetic flux sensing coil; and a light emitting module that is configured to emit light based on current rectified by the rectifying portion is disclosed. 1. An indicator for an induction heating device including a working coil , the indicator comprising:a magnetic flux sensing coil that is configured to (i) sense magnetic flux generated in a state in which the working coil is driven and (ii) convert the sensed magnetic flux into current;a rectifying portion that is configured to rectify current converted by the magnetic flux sensing coil; anda light emitting module that is configured to emit light based on current rectified by the rectifying portion.2. The indicator of claim 1 , further comprising:a substrate, wherein the magnetic flux sensing coil, the rectifying portion, and the light emitting module are mounted on a surface of the substrate.3. The indicator of claim 1 , wherein claim 1 , based on the working coil being driven and magnetic flux being generated by the working coil claim 1 , the light emitting module is turned on.4. The indicator of claim 1 , wherein claim 1 , based on driving of the working coil being stopped claim 1 , the light emitting module is turned off.5. The indicator of claim 1 , wherein a brightness of the light emitting module changes based on a magnitude of magnetic flux generated by the working coil.6. The indicator of claim 5 , wherein claim 5 , the brightness of the light emitting module increases as the magnitude of magnetic flux generated by the working coil increases.7. The indicator of claim 5 , wherein the brightness of the light emitting module decreases as the ...

Induction Cooktop and Control Method for Induction Cooktop

An induction cooktop and a control method for the induction cooktop, the induction cooktop includes: a processing module, a power supply module and a heating module; the power supply module is configured to supply power to the heating module. The heating module includes: a heating circuit configured to heat a pot and a detection circuit connected to the heating circuit. The processing module is configured to acquire a parameter value of a signal collection point of the detection circuit, determine, according to the parameter value, whether the pot is placed on the heating module, and control the heating circuit to heat the pot if it is determined that the pot is placed on the heating module, so as to provide a high heating efficiency.

CONTAINER SUPPORT

A container support is disclosed. The container support is operated in conjunction with an induction heating unit, which is disposed beneath a table and generates a magnetic field, and includes a plate for supporting a cooking container placed 1. A container support configured to be operated in conjunction with an induction heating unit , disposed beneath a table and configured to generate a magnetic field , the container support comprising:a plate for supporting a cooking container placed thereon;a manipulation unit provided at a portion of the plate so as to receive control commands from a user; anda signal-transmitting part provided at a portion of the plate so as to transmit electric signals to the induction heating unit.2. The container support according to claim 1 , wherein the plate is made of a heat-resistant material claim 1 , the heat-resistant material being one of heat-resistant synthetic resin claim 1 , silicon and glass.3. The container support according to claim 1 , further comprising:a display unit provided at a portion of the plate so as to display cooking information to a user.4. The container support according to claim 3 , further comprising:a temperature sensor provided at the plate so as to measure a temperature of the cooking container.5. The container support according to claim 4 , wherein temperature information detected by the temperature sensor is transmitted to the induction heating unit through the signal-transmitting part claim 4 , and the induction heating unit adjusts an intensity of the magnetic field depending on the temperature information transmitted thereto.6. The container support according to claim 4 , wherein the induction heating unit includes:a signal-receiving part for receiving electric signals transmitted from the signal-transmitting part;a working coil for generating a magnetic field by receiving current;a power supply part for supplying current to the working coil; anda controller connected to the signal-receiving part ...

INDUCTION HEAT COOKING APPARATUS TO IMPLEMENT WPT AND PFC POWER CONVERTER

An induction heat cooking apparatus that includes: a rectifier that is configured to convert alternating current (AC) voltage supplied from an external power source into direct current (DC) voltage; an inverter that is configured to generate current based on DC voltage received from the rectifier and provide the current to output nodes; heating coils that are configured to, based on the current generated by the inverter, generate magnetic fields for providing heat; a first capacitive unit that includes one or more resonance capacitors and that is coupled between the output nodes; a second capacitive unit that includes one or more wireless power transfer (WPT) capacitors and that is configured to be coupled between the output nodes; and a mode conversion switch that is configured to couple the second capacitive unit to the first capacitive unit in parallel is disclosed. 1. An induction heat cooking apparatus comprising:a rectifier that is configured to convert alternating current (AC) voltage supplied from an external power source into direct current (DC) voltage;an inverter that is configured to generate current based on DC voltage received from the rectifier and provide the current to output nodes;heating coils that are configured to, based on the current generated by the inverter, generate magnetic fields for providing heat;a first capacitive unit that includes one or more resonance capacitors and that is coupled between the output nodes;a second capacitive unit that includes one or more wireless power transfer (WPT) capacitors and that is configured to be coupled between the output nodes; anda mode conversion switch that is configured to couple the second capacitive unit to the first capacitive unit in parallel, andwherein the mode conversion switch is configured to be opened in a cooking device heating mode and closed in a wireless power transfer mode.2. The induction heat cooking apparatus of claim 1 , further comprising:a driving unit that is configured to ...

INDUCTION HEAT COOKING APPARATUS AND METHOD FOR OPERATING THE SAME

An induction heat cooking apparatus includes a rectifier configured to convert an AC voltage supplied from a power source into a DC voltage, a battery configured to store power, a switch configured to connect to at least one of the rectifier or the battery, an inverter connected to the switch and configured to receive a first voltage from at least one of the rectifier or the battery and convert the first voltage to a second voltage, and a heating coil configured to receive the second voltage from the inverter and generate magnetic fields in which the heating coil is configured to heat a cooking device based on the generated magnetic fields. 1. An induction heat cooking apparatus comprising:a rectifier configured to convert an alternating current (AC) voltage supplied from a power source into a direct current (DC) voltage;a battery configured to store power;a charger configured to be connected to the power source and charge the battery;a switch configured to connect to at least one of the rectifier or the battery;an inverter connected to the switch and configured to receive a first voltage from at least one of the rectifier or the battery and convert the first voltage to a second voltage; anda heating coil configured to receive the second voltage from the inverter and generate magnetic fields, the heating coil being configured to heat a cooking device based on the generated magnetic fields.2. The cooking apparatus according to claim 1 , further comprising:an operation mode setting unit configured to receive a selection of one of a wired mode or a wireless mode; and control the switch to connect to the rectifier based on the selection of the wired mode, and', 'control the switch to connect to the battery based on the selection of the wireless mode., 'a driving unit configured to3. The cooking apparatus according to claim 2 , wherein the battery is further configured to claim 2 , based on the switch being connected to the rectifier claim 2 , be charged by power ...

COOKING VESSEL WITH A THERMAL SENSOR

According to one example, a cookware apparatus includes a vessel. The vessel includes a bottom, and a sidewall surrounding the bottom and extending upward from the bottom so as to form a fluid retaining interior region. The sidewall terminates at a rim. The vessel also includes a channel extending through a portion of the bottom and further extending upward into and through a portion of the sidewall. The channel has an opening positioned in an external surface of the sidewall. The cookware apparatus further includes a thermal sensor positioned within the channel. The thermal sensor extends through the portion of the bottom and further extends upward into and through the portion of the sidewall. 1. A cookware apparatus , comprising i. a bottom;', 'ii. a sidewall surrounding the bottom and extending upward from the bottom so as to form a fluid retaining interior region, the sidewall terminating at a rim; and', 'iii. a channel extending through a portion of the bottom and further extending upward into and through a portion of the sidewall, the channel having an opening positioned in an external surface of the sidewall;, 'a. a vessel, comprising i. a thermal sensing device positioned in the portion of the bottom; and', 'ii. one or more sensor leads communicatively coupled to the thermal sensing device, the one or more sensor leads extending from the portion of the bottom upward into and through the portion of the sidewall, the one or more sensor leads further extending out of the opening of the channel, extending within a flange of a handle, extending within the handle, and being coupled to an electronic circuit;, 'b. a thermal sensor positioned within the channel, the thermal sensor extending through the portion of the bottom and further extending upward into and through the portion of the sidewall, the thermal sensor comprisingc. the handle coupled to the vessel by the flange, the flange being positioned over the opening of the channel; andd. the electronic circuit ...

Systems and methods for protecting switching elements in an induction heating system

The present disclosure provides systems and methods for protecting switching elements in an induction heating system. A switching power loss associated with a switching element of the induction heating system can be calculated and an operating frequency of the induction heating system can be adjusted based upon the switching power loss. According to one aspect, the switching power loss can be classified into one of a plurality of threat zones based upon the magnitude of the switching power loss and the operating frequency can be adjusted based upon the threat zone into which the switching power loss is classified. According to another aspect, the switching power loss can be calculated based at least in part on a duty cycle of an output signal. The duty cycle of the output signal can provide an indication of the proximity of the operating frequency of the induction heating system to resonance.

METHOD FOR CALIBRATING A POWER CONTROL LOOP OF AN INDUCTION HOB

The invention relates to a method for calibrating a power control loop of an induction hob (), the induction hob () comprising a power stage () including at least one induction element (), a measurement unit () and a control unit (), the method comprising the steps of:—coupling the at least one induction element () with a reference load;—powering the power stage () at predefined working conditions by means of said control unit ();—deriving a measurement value being indicative for the power transferred from the power stage () to the reference load by means of said measurement unit ();—providing the measurement value to the control unit ();—calculating a correction value based on the measurement value and a reference value;—storing the correction value in a storage entity in order to modify measurement values provided by the measurement unit () based on the correction value when operating the induction hob (). 1. Method for calibrating a power control loop of an induction hob , the induction hob comprising a power stage including at least one induction element , a measurement unit and a control unit , the method comprising the steps of:coupling the at least one induction element with a reference load;powering the power stage at predefined working conditions by means of said control unit;deriving a measurement value being indicative for the power transferred from the power stage to the reference load by means of said measurement unit;providing the measurement value to the control unit;calculating a correction value based on the measurement value and a reference value;storing the correction value in a storage entity in order to modify measurement values provided by the measurement unit based on the correction value when operating the induction hob.2. Method according to claim 1 , wherein the measurement value is derived based on the voltage drop at a shunt resistor being coupled with an arm of a bridge rectifier.3. Method according to claim 1 , wherein the measurement ...

Inductive Cosmetic Depotting Device and Method

The improved cosmetic depotting device includes an induction coil that selectively heats a conductive cosmetic pan placed on a surface above the induction coil sufficiently to loosen the adhesive bond between the cosmetic pan and the retail package within which it is contained. A microcontroller switches the operating frequency of the induction coil to effect adequate heating of low mass standard cosmetic pans. A retail makeup package is placed on the heating surface, the device is powered on and the heat setting raised until the cosmetic pan adhesive is sufficiently softened to allow removal from the retail packaging. Makeup compounds may also be melted for placement in a chosen cosmetic pan for subsequent placement in a configurable makeup organizer Safe heating and depotting of makeup compounds makes the device ideal for use in a commercial setting, for example, in a kiosk near a department store of a shopping mall. 1. An inductive cosmetic depotting device , the device comprising:a first surface for supporting a retail makeup package containing a cosmetic pan adhesively bonded thereto; anda magnetic induction coil beneath the first surface, the induction coil adapted to inductively heat the cosmetic pan to soften the adhesive bond to allow removal of the cosmetic pan from the retail makeup package.2. The device of claim 1 , wherein the inductance of the induction coil is in the range of 80 μH to 125 μH.3. The device of claim 1 , wherein the induction coil is driven at a frequency in the range of 22 kHz to 27 kHz.4. The device of claim 1 , wherein the induction coil is driven at a frequency in the range of 22 kHz to 40 kHz.5. The device of claim 1 , wherein the induction coil is driven with pulsed DC.6. The device of further comprising:a microcontroller device adapted to selectively control the induction coil operating frequency to effect heating of a cosmetic pan based upon the cosmetic pan size.7. The device of claim 6 , wherein the microcontroller device is ...