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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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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 18. Отображено 18.
30-06-2016 дата публикации

TESTING DEVICE AND TESTING SYSTEM

Номер: WO2016101675A1
Принадлежит:

A testing device comprises a testing bench (10) for testing a product, a base (20) and a bracket (30) which are connected with the testing bench (10), a switch (40) for controlling the power-on/off of the testing bench (10), and a clamp (50) for clamping the product; the clamp (50) is provided with a clamping block (51) for triggering the switch (40), the switch (40) is mounted on the base (20), and the clamp (50) is movably connected to the bracket (30) and can move relative to the testing bench (10). In the process that the clamp (50) moves toward the testing bench (10), the switch (40) is triggered by the clamping block (51) and the testing bench (10) is powered off. In the case that the clamp (50) is connected to the testing bench (10), the clamping block (51) is detached from the switch (40), and testing bench (10) is powered on to test the product; In the process that the clamp (50) moves to leave the testing bench (10), the switch (40) is triggered by the clamping block (51), the ...

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17-09-2015 дата публикации

POWER AMPLIFIER CIRCUIT, POWER AMPLIFYING APPARATUS, AND BROADBAND MATCHING METHOD THEREFOR

Номер: WO2015135267A1
Принадлежит:

A power amplifier circuit, a power amplifying apparatus, and a broadband matching method therefor. The power amplifier circuit comprises a power allocation unit, a main amplifying unit, a power combining unit and at least one auxiliary amplifying unit connected in parallel to the main amplifying unit. Input signals are allocated by the power allocation unit and then are separately output to the main amplifying unit and the auxiliary amplifying unit. Multiple signals amplified by the main amplifying unit and the auxiliary amplifying unit are combined into one signal by the power combining unit and then are output. An impedance conversion line is connected in series between the main amplifying unit and/or the at least one auxiliary amplifying unit and the power combining unit. The power amplifier circuit also comprises a phase compensation unit connected in series to a branch of the main amplifying unit and/or the at least one auxiliary amplifying unit. The phase compensation unit and the ...

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18-06-2015 дата публикации

RADIO-FREQUENCY POWER AMPLIFIER, BASE STATION, AND IMPEDANCE ADJUSTMENT METHOD

Номер: WO2015085742A1
Принадлежит:

A radio-frequency power amplifier, a base station, and an impedance adjustment method. Load impedance at a preset channel frequency number of a radio-frequency power amplifier is adjusted by means of an impedance adjustment circuit disposed between an output transmission line and an output load of the radio-frequency power amplifier.

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08-12-2016 дата публикации

WELDING POSITIONING DEVICE AND METHOD FOR RADIO FREQUENCY POWER AMPLIFIER

Номер: WO2016192319A1
Принадлежит:

A welding positioning device for a radio frequency power amplifier, which is used for positioning the radio frequency power amplifier (2) into an open slot (301) provided on a mounting bottom plate. An input end (201) of the radio frequency power amplifier (2) is arranged on a first end face (202) of the radio frequency power amplifier, and an output end (203) of the radio frequency power amplifier (2) is arranged on a second end face (204) of the radio frequency power amplifier. The welding positioning device for the radio frequency power amplifier (2) comprises: a push pin (1). When the push pin (1) is in contact with the first end face (202) and moves towards a first direction relative to the radio frequency power amplifier (2), the radio frequency power amplifier (2) is pushed to move towards a second direction until the second end face (204) and an inner wall at one side of the open slot (301) are jointed and contacted with each other and are positioned, the second direction being ...

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11-07-2019 дата публикации

OUT-OF-PHASE POWER AMPLIFIER AND METHOD AND DEVICE FOR REALIZING OUTPUT MATCHING THEREFOR AND POWER AMPLIFIER BRANCH

Номер: WO2019134702A1
Принадлежит:

An out-of-phase power amplifier and a method for realizing output matching therefor, comprising: calculating an offset angle of a combiner according to signal power back-off of a signal source, i.e., a signal peak-to-average ratio; determining, according to the calculated offset angle, a ratio of optimal impedance Zm1 corresponding to a peak output power of a power tube to optimal impedance Zm2 corresponding to a mean output power of the power tube, wherein the ratio is a standing-wave ratio; determining, according to the size of an isostatic standing-wave ratio circle, a maximum power point impedance Zopt of the power tube by means of a load pull mode; by taking the maximum power point impedance Zopt as a reference point, finding out a back-off high-efficiency point impedance Zbk_eff on the isostatic standing-wave ratio circle; and matching the maximum power point impedance Zopt and the back-off high-efficiency point impedance Zbk_eff, as corresponding impedance values, respectively to ...

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02-02-2017 дата публикации

PHASE COMPENSATION METHOD AND DEVICE

Номер: WO2017016215A1
Принадлежит:

A phase compensation method and device. The method comprises: determining different phase shifts by means of the position change of a reactance element connected in parallel to a microstrip line on the microstrip line, wherein the microstrip line is a section of transmission line for transmitting high-frequency signals, wherein the reactance element is an inductor or a capacitor; and performing phase compensation processing by means of the different phase shifts determined. The present invention solves the problem in the relevant art that the research and development costs are high due to frequent revisions existing in the phase compensation method, thereby realizing the maximum performance output, reducing the number of times revision is performed and decreasing the research and development costs.

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13-08-2021 дата публикации

Broadband matching circuit, signal processing circuit and broadband post-matching circuit

Номер: CN113258880A
Принадлежит:

The invention provides a broadband matching circuit, a signal processing circuit and a broadband post-matching circuit. The broadband matching circuit comprises an input end, an output end, one or more connecting line circuits and one or more branch circuits, wherein the one or more connecting line circuits are connected in series between the input end and the output end, and the branch circuit is connected in parallel to one end of the connecting line circuit; any connecting line circuit adopts a step-shaped structure, any branch circuit adopts a step-shaped structure, and the step-shaped structure comprises two sections of transmission lines.

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30-12-2021 дата публикации

ENVELOPE AMPLIFIER, ENVELOPE TRACKING POWER AMPLIFIER, AND SIGNAL PROCESSING METHOD

Номер: WO2021259034A1
Принадлежит:

An envelope amplifier (1), an envelope tracking power amplifier, and a signal processing method. The envelope amplifier (1) comprises: a comparator (11), used for comparing the voltage of a received radio frequency envelope signal to the reference voltage of the comparator, and outputting a first envelope signal the voltage of which is less than or equal to the reference voltage and a second envelope signal the voltage of which is greater than or equal to the reference voltage; a signal amplifier (12), used for amplifying the first envelope signal; a multi-voltage output circuit, used for outputting a corresponding target voltage signal according to the second envelope signal; and a synthesis circuit (14) used for synthesizing the amplified first envelope signal with the target voltage signal and outputting the synthesized signal.

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12-01-2017 дата публикации

TRANSISTOR-PUSHING DEVICE

Номер: WO2017005028A1
Принадлежит:

A transistor-pushing device, comprising a body portion (10) installed on a printing circuit board (40); a transistor-pushing portion (20), provided on the body portion and extending away from the body portion; and an inclined surface (21) provided on the transistor-pushing portion; wherein, the inclined surface is provided opposite to a side wall of an input side of a power transistor slot (41) on the printed circuit board such that in the transistor-pushing portion, when the inclined surface and the side wall of the input side are fit together, the power transistor in the power transistor slot is pushed to an output side of the power transistor slot. The transistor-pushing device solves the problem in the prior art in which it is difficult to control the position of a power transistor in a power transistor groove of a printed circuit board.

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23-06-2016 дата публикации

PCB BOARD

Номер: WO2016095578A1
Принадлежит:

Provided is a PCB board, comprising a bottom layer (100) arranged to mount power amplification elements (10), wherein an annular solder restraint (20) surrounding a power amplification element (10) is arranged on the mount position of the bottom layer (100) corresponding to the power amplification element (10). Accordingly, the competitive rate of the products is increased and the costs are reduced.

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19-01-2017 дата публикации

DOHERTY POWER AMPLIFIER CIRCUIT

Номер: WO2017008512A1
Принадлежит:

The present invention provides a Doherty power amplifier circuit, the circuit comprising primary power amplification apparatus and an auxiliary power amplification apparatus, and further comprising: a first adaptive crossover network, a second adaptive crossover network, a first output matching circuit, a second output matching circuit and a multi-frequency combiner. The first adaptive crossover network is for respectively separating out a first band signal and a second band signal in output signals of the primary power amplification apparatus and the auxiliary power amplification apparatus. The second adaptive crossover network is for respectively separating out a first band signal and a second band signal in output signals of the primary power amplification apparatus and the auxiliary power amplification apparatus. The multi-frequency combiner is for combining and outputting the output signals of the first output matching circuit and the second output matching circuit. The present invention ...

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12-01-2017 дата публикации

POWER AMPLIFICATION SYSTEM, METHOD AND DEVICE

Номер: WO2017005034A1
Принадлежит:

The present invention provides a power amplification system, method and device, the power amplification method comprising: determining a peak-to-average ratio of an input signal; according to the peak-to-average ratio of the input signal, selecting a peak power amplifier from two or more peak power amplifiers in a power amplification system; utilizing the selected peak power amplifier and a carrier power amplifier in the power amplification system to amplify the power of the input signal. The present invention solves the problem in the related art in which it is impossible to achieve compatibility between different signal peak-to-average ratios, thus achieving compatibility between different signal peak-to-average ratios, realizing maximum efficiency for each different peak-to-average ratio.

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04-04-2023 дата публикации

Electric power calling management system for shared energy storage based on artificial intelligence

Номер: CN115907660A
Принадлежит:

The invention belongs to the field of shared energy storage, relates to a data analysis technology, is used for solving the problem of power shortage of a user side caused by the adoption of a single power supply mode in an existing shared energy storage power calling management system, and particularly relates to an artificial intelligence-based shared energy storage power calling management system, which comprises a calling management platform, the calling management platform is in communication connection with a mode management module, a mode switching module, a period management module and a storage module; the mode management module is used for managing and analyzing power calling modes; the power calling modes comprise a storage station calling mode and a region calling mode; according to the method, power supply is carried out through two power calling modes, mode switching is carried out according to the power supply condition of the power supply area, after the energy storage quota ...

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08-09-2017 дата публикации

Self-protection method and system for vehicle rear-end avoidance early warning and vehicle

Номер: CN0107139919A
Принадлежит:

... 本发明提出了用于车辆防追尾预警的自保护方法、系统及车辆,属于智能汽车领域,包括获取样本车辆行驶参数,以及位于样本车辆行驶前后向车辆信息;根据样本车辆行驶参数,确定前向、后向防撞预警时间;将防撞预警时间与预设阈值对比的结果生成驾驶模式转换消息,将驾驶模式转换消息在样本车辆的液晶屏进行显示;同时结合后向防撞预警时间以及前向防撞预警时间生成对车辆控制的变速指令。通过获取样本车辆行驶参数,计算获取到后向、前向防撞预警时间,进而根据获取到两个防撞预警时间确定加速度数值,进而根据加速度数值选择不同的加速、减速或变线、变道等处理方式,减少了后向追尾交通事故的发生率,减轻了驾驶员的驾驶疲劳,提高了行车安全。 ...

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11-08-2023 дата публикации

Flow-equalizing and noise-reducing T-shaped tee joint for precise air conditioner

Номер: CN116576596A
Принадлежит:

The invention belongs to the technical field of distributors, and particularly relates to a flow-equalizing and noise-reducing T-shaped tee joint for a precise air conditioner. In order to solve the problem of fluid temperature difference caused by uneven gas-liquid two-phase distribution in two paths in the prior art, the flow-equalizing and noise-reducing T-shaped tee joint for the precise air conditioner comprises a distributor body internally provided with a cavity, a fluid inlet is formed in one end of the distributor body, and at least two fluid outlets are formed in the other end of the distributor body. The fluid inlet and the fluid outlets are communicated with the cavity, the first blocking part is arranged between two adjacent fluid outlets, a second blocking part is arranged between the first blocking part and the fluid inlet, and the included angle between the extending direction of the second blocking part and the extending direction of the first blocking part is larger than ...

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26-05-2023 дата публикации

Method for determining anchor span cable strand force of suspension bridge in finished bridge state

Номер: CN116167141A
Принадлежит:

The invention discloses a method for determining an anchor span cable strand force in a finished suspension bridge state. The method comprises the following steps: firstly, determining a position relationship and an overall trend of an anchor span cable strand and a splay cable saddle; then determining a cable force distribution mode that the cable force of each cable strand of the anchor span is equal at the tangent point of the cable strand and the splay cable saddle; thirdly, conducting segmented research on the anchor span cable strand, sequentially determining explicit expressions of the height difference, the transverse bridge direction distance and the longitudinal bridge direction distance of all sections of the cable strand, and establishing a control equation set according to height difference closing, transverse bridge direction distance closing, longitudinal bridge direction distance closing, scattered cable saddle stress balance, same cable strand axial force and certain cable ...

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23-06-2023 дата публикации

Multi-battery module parallel equalization device and control method

Номер: CN116316951A
Принадлежит:

The invention discloses a multi-battery-module parallel equalization device and a control method. The multi-battery-module parallel equalization device comprises a controller, equalization device units 1-n which are connected in parallel between a direct-current bus DC + and a direct-current bus DC-and have the same structure, and a bus voltage control unit, the equalization device unit 1 consists of a battery module 1 and an equalization unit 1 which are connected in series; the battery module 1 is formed by connecting more than one single battery in series. According to the control method, automatic equalization, on-demand active equalization control, power regulation of the battery energy storage system and DC bus voltage regulation of charging and discharging current of each parallel branch battery are realized according to a control instruction and the running state of the equalization unit. According to the invention, the active equalization management of the plurality of parallel ...

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29-06-2016 дата публикации

Novel have warning device

Номер: CN0205339718U
Принадлежит:

... 本实用新型公开了一种新型带有报警装置的输液架,包括挂杆、蓄电池、支撑杆、底座、滚轮、电子时钟、转轴、锁紧螺钉、报警器、弹簧、铜块、移动块和挂钩;所述挂杆左侧设有警报器;所述挂杆的右侧设有蓄电池;所述挂杆底端设有若干挂钩;所述挂钩固定安装在挂杆上;所述支撑杆固定连接在挂杆上;所述支撑杆上设有电子时钟;所述支撑杆分为三节,每节之间通过转轴连接;所述转轴左侧设有锁紧螺钉;所述支撑杆底部连接有底座;所述底座上设有滚轮;报警装置由弹簧、移动块、铜块和挂钩;本实用新型的输液架结构简单,且在药液快使用完时能够很好地实现自动报警,使得护士可以及时为患者进行换瓶或者卸针操作,提高护士的工作效率,减少其工作量。 ...

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