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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 7. Отображено 7.
17-01-2018 дата публикации

COIL DRIVE DEVICE FOR MAGNETIC CONTACT HAVING ANTI-RELEASE FUNCTION

Номер: KR1020180006009A
Автор: JI, YOUNG HYOK
Принадлежит:

The present invention relates to a coil drive device for a magnetic contactor, having an anti-release function of preventing abnormal release or recovering (reclosing) when a magnetic contactor is suspected of being released by an external environment factor of the magnetic contactor. The coil drive device comprises a release current detecting unit positioned between a mutually parallel connection point of a coil for magnetizing a fixed core and a discharge circuit for discharging the coil, and a release determining unit determining a release using the current detected by the release current detecting unit. When the release determining unit determines that a release condition of the contact point is likely to occur, the release determining unit readjusts the current flowing through the coil by causing a switch drive circuit to adjust a conduction time of a switch, thereby preventing abnormal release of the magnetic contactor which may be caused by variations of an applied voltage and an ...

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06-12-2016 дата публикации

WIRELESS POWER TRANSMISSION APPARATUS AND CONTROL METHOD THEREOF

Номер: KR1020160138884A
Принадлежит:

According to one technical aspect of the present invention, there is provided a method of controlling a wireless power transmission apparatus comprising: a step of transmitting a beacon signal; a step of determining access of an external object based on whether the beacon signal is changed; and a step of transmitting a plurality of ping signals having different frequencies if the external object is determined to be accessed. COPYRIGHT KIPO 2016 (610) Transmitting a beacon signal (620) Detecting access of an external object? (630) Transmitting a plurality of ping signals having different frequencies (640) Is a response signal received? (650) Adjusting impedance (660) Transmitting power (AA) Start (BB) End (C1,C2) No (D1,D2) Yes ...

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08-09-2015 дата публикации

HYBRID SOLAR BATTERY CONTROL DEVICE AND METHOD THEREOF

Номер: KR1020150102766A
Принадлежит:

The present invention relates to a hybrid solar battery control device and a method thereof. An embodiment of the present invention comprises: a master converter to convert power outputted from a master solar battery module into direct current power of a pulse type; a direct current link condenser which is connected between output terminals of the master converter and charges and discharges the direct current power of the pulse type outputted from the master converter; an inverter which is connected to both ends of the direct current link condenser and converts the direct current power outputted from the direct current link condenser into alternating current power and applies the same; a slave converter which is connected to both ends of the direct current link condenser and converts the power outputted from a slave solar battery module into the direct current power of the pulse type; a master converter control module to follow a maximum power point based on voltage information and current ...

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23-04-2018 дата публикации

ELECTRONIC SWITCH OF STARTING DEVICE FOR STAR-DELTA WIRING AND STARTING DEVICE HAVING SAME

Номер: KR101851301B1
Автор: JI, YOUNG HYOK
Принадлежит: BO WOO ELECTRONIC CONTROL CO., LTD.

The present invention relates to an electronic switch of a starting device for star-delta wiring which can be made compact and light, as well as secure economic efficiency with price competitiveness through reduction of the number of parts, shortening of design and working hours, and reduction of material costs, can improve product reliability by preventing an occurrence of noise and voltage stress, and can facilitate maintenance by displaying and informing the power information of a line, and a starting device having the electronic switch. According to the present invention, the electronic switch of a starting device for star-delta wiring comprises: a housing; an electromagnetic module configured in the housing and including a movable electromagnet relatively moving with magnetization by applied current; a linearly moving plunger member provided in the movable electromagnet of the electromagnetic module and extending to one side; a star-delta wiring-integrated module provided in the housing ...

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26-07-2017 дата публикации

무선 전력 송신 장치 및 그 제어 방법

Номер: KR0101762012B1
Принадлежит: 삼성전기주식회사

... 본 발명의 일 기술적 측면에 따른 무선 전력 송신 장치의 제어 방법은, 비콘 신호를 송출하는 단계, 상기 비콘 신호의 변화 여부로 외부 물체의 접근을 판단하는 단계 및 상기 외부 물체가 접근된 것으로 판단되면, 서로 다른 주파수를 가지는 복수의 핑 신호를 송출하는 단계를 포함한다.

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12-10-2017 дата публикации

WIRELESS POWER TRANSMISSION APPARATUS AND CONTROL METHOD THEREOF

Номер: KR1020170112389A
Принадлежит:

The present invention relates to a wireless power transmission apparatus capable of increasing the access detection performance thereof. The wireless power transmission apparatus according to one technical aspect of the present invention comprises: a resonator transmitting a detection signal at a predetermined frequency; a period detection part detecting a period of a self-excited vibration signal caused by the detection signal; and a control part determining whether or not an external object approaches in response to a change of the period of the self-excited vibration signal. COPYRIGHT KIPO 2017 (110) Power supply part (120) Inverter part (140) Period detection part (150) Control part ...

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30-09-2015 дата публикации

LINEAR MOTION STAGE APPARATUS WITH CAPABILITY OF COMPENSATING REACTION AND SERVO DRIVER

Номер: KR0101553916B1
Автор: 안형준, 유요한, 지용혁
Принадлежит: 숭실대학교산학협력단

... 본 발명인 반발력 보상이 가능한 선형 운동 스테이지 장치는 자석 트랙, 상기 자석 트랙을 따라 선형이동하는 이동자, 상기 이동자의 위치 및 상기 자석 트랙의 위치를 측정하는 위치 측정부, 상기 자석 트랙에 대한 상기 이동자의 상대 위치를 산출하는 상대 위치 산출부 및 상기 산출된 상대 위치에 기초하여 상기 자석 트랙에 대한 상기 이동자의 상대 속도를 산출하고 이에 기초하여 상기 이동자의 추력 명령을 보상하는 보상부를 포함한다.

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