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21. 发明申请

US20150123645A1 POWER SUPPLY UNIT HAVING HEAT DISSIPATION STRUCTURE 有权
标题翻译：具有散热结构的电源单元
公开(公告)号：US20150123645A1
公开(公告)日：2015-05-07
申请号：US14530094
申请日：2014-10-31
申请人： DENSO CORPORATION
发明人： Yuuki Takemoto , Yuuichi Handa , Katsutoyo Misawa , Syotarou Yamasaki , Syuji Kurauchi , Kenta Hatakenaka
IPC分类号： H02M3/145
CPC分类号： H02M3/28 , H01F27/08 , H01F27/36 , H02M7/003
摘要： A power supply unit includes: a transformer; a primary component that constitutes a primary circuit connected to the transformer; a secondary component that constitutes a secondary circuit connected to the transformer; a choke coil; a base plate including the transformer, the primary component, the secondary component and the choke coil; a metal plate connected to the base plate; and a connecting member connecting the primary component and the transformer. The primary component and the transformer are laminated to constitute a first laminating body. A part of the metal plate is disposed closer to the transformer than the primary component, and the metal plate and the transformer are electrically connected by a ground line. A connection point between the ground line and the metal plate is located closer to the transformer than the primary component.
摘要翻译：电源单元包括：变压器; 构成连接到变压器的初级电路的主要部件; 构成连接到变压器的次级电路的次级部件; 扼流线圈包括变压器，主要部件，次要部件和扼流线圈的基板; 连接到基板的金属板; 以及连接主要部件和变压器的连接部件。主要部件和变压器被层压以构成第一层压体。金属板的一部分比主要部件更靠近变压器设置，并且金属板和变压器通过接地线电连接。接地线和金属板之间的连接点比主要部件更靠近变压器。

22. 发明授权

US5864116A D.C. chopper with inductance control for welding 失效
标题翻译：直流斩波器具有电感控制焊接
公开(公告)号：US5864116A
公开(公告)日：1999-01-26
申请号：US900724
申请日：1997-07-25
申请人： Ivan E. Baker
发明人： Ivan E. Baker
IPC分类号： B23K9/073 , B23K9/09 , H02M3/145 , H02M3/155 , H02M3/156 , H02M9/00
CPC分类号： B23K9/092
摘要： A multi-stage down chopper for arc welding by creating current flow between an electrode and a workpiece, the chopper includes a D.C. input source, a first switching stage, with a first switch device and a first choke, this first stage selectively connects the D.C. input source across the electrode and workpiece at a controlled duty cycle and switching rate and a second switching stage, with a second switch device and a second choke, the second stage also selectively connects the D.C. input source across the electrode and workpiece at the aforesaid controlled duty cycle and switching rate, wherein the chopper is improved by the first and second chokes onto a single core and by providing a minimum current override feedback circuit.
摘要翻译：一种用于通过在电极和工件之间产生电流的电弧焊接的多级降压斩波器，所述斩波器包括DC输入源，第一开关级，具有第一开关器件和第一扼流器，该第一级选择性地连接DC 输入源以受控的工作周期和开关速率和第二开关级跨越电极和工件，第二开关装置和第二扼流圈，第二级还选择性地将DC输入源跨过电极和工件在上述控制的占空比和切换速率，其中斩波器通过第一和第二扼流圈改进到单个磁芯上，并且通过提供最小电流倍率反馈电路。

23. 发明授权

US4242629A DC Switching voltage regulator with extended input voltage capability 失效
标题翻译：直流开关电压调节器，具有扩展的输入电压能力
公开(公告)号：US4242629A
公开(公告)日：1980-12-30
申请号：US965553
申请日：1978-12-01
申请人： Kenneth C. Shuey
发明人： Kenneth C. Shuey
IPC分类号： H02M3/145 , H02M3/156 , G05F1/56
CPC分类号： H02M3/1563
摘要： A direct current, high voltage, switching voltage regulator for generating a low voltage, low current supply referenced to the positive side of the input voltage is provided while maintaining operation over an extended voltage input range with maximum efficiency, that is, low power loss and heat dissipation.
摘要翻译：提供一个直流，高压，开关电压调节器，用于产生以输入电压正极为参考的低电压，低电流电源，同时以最大的效率保持工作在扩展的电压输入范围内，即低功率损耗和散热。

24. 发明授权

US4030015A Pulse width modulated voltage regulator-converter/power converter having push-push regulator-converter means 失效
标题翻译：脉宽调制电压调节器转换器/功率转换器具有推挽式调节器转换装置
公开(公告)号：US4030015A
公开(公告)日：1977-06-14
申请号：US624217
申请日：1975-10-20
申请人： Joseph Michael Herko , James Maurice Joyce
发明人： Joseph Michael Herko , James Maurice Joyce
IPC分类号： H02M3/145 , H02M3/155 , H02M3/28 , H02M3/337 , H02P13/32
CPC分类号： H02M3/3378
摘要： Disclosed herein is an improved pulse width modulated (PWM) voltage regulator-converter system which can function, alone, as a switched voltage regulator system or in combination with a switched power converter, synchronized therewith to form an improved voltage regulator-converter/power converter system. In the pulse width modulated voltage regulator-converter embodiment of the invention, secondary windings of a "current mode" regulator-converter interstage transformer are coupled to regulator-converter power transistors in a push-push circuit configuration. Signals generated by a system clock means and an error signal, derived from the output of an averaging filter, drive a pulse width modulated control means connected to the primary windings of the regulator-converter interstage transformer to thereby increase the maximum regulated output voltage of the voltage regulator-converter system after conditioning in the averaging filter. In the pulse width modulated voltage regulator-converter/power converter embodiment of the invention, the aforementioned output voltage of the voltage regulator-converter system is coupled directly to a switched power converter connected in a push-pull circuit configuration. In turn, additional signals generated by the system clock means switch the power converter in synchronizm with the voltage regulator-converter system.
摘要翻译：本文公开了一种改进的脉宽调制（PWM）电压调节器 - 转换器系统，其可以单独用作开关式电压调节器系统或与其同步的开关式功率转换器组合，以形成改进的电压调节器 - 转换器/功率转换器系统。在本发明的脉冲宽度调制电压调节器转换器实施例中，“电流模式”调节器 - 转换器级间变压器的次级绕组以推 - 推电路配置耦合到调节器转换器功率晶体管。由系统时钟装置产生的信号和从平均滤波器的输出导出的误差信号驱动连接到调节器 - 转换器级间变压器的初级绕组的脉宽调制控制装置，从而增加最大调节输出电压调压转换器系统经过平均滤波器调理后。在本发明的脉冲宽度调制电压调节器 - 转换器/功率转换器实施例中，上述稳压器 - 转换器系统的输出电压直接耦合到以推挽电路配置连接的开关式功率转换器。反过来，由系统时钟产生的附加信号意味着与电压调节器转换器系统同步地切换功率转换器。

25. 发明授权

US3803471A Variable time ratio control having power switch which does not require current equalizing means 失效
标题翻译：具有不需要电流均衡装置的电力开关的可变时间比率控制
公开(公告)号：US3803471A
公开(公告)日：1974-04-09
申请号：US31759572
申请日：1972-12-22
申请人： ALLIS CHALMERS
发明人： PRICE R , STICH F , MOORE D
IPC分类号： B60L15/28 , H02M3/145 , H02P7/29 , H02P5/40
CPC分类号： H02P7/29 , Y02T10/7258 , Y10S388/921
摘要： A pulse width modulation control having a power switch arrangement which does not require external current equalization means has a plurality of paralleled power transistors whose forward current transfer ratio decreases abruptly with increase in collector current and whose base drive is supplied by a constant current switching regulator having a plurality of paralleled clamping transistors in shunt to the regulator output terminals which are turned on by variable width pulses to shunt current away from the power transistors and thereby turn the power switch off and on. The regulator output is coupled to the base of each power transistor by a diode whose forward drop promotes base current sharing and which prevents multiple transistor failure.

26. 发明申请

US20220190636A1 REDUNDANT DC INPUT POWER SUPPLIES HAVING BACK-FEED PROTECTION 有权
公开(公告)号：US20220190636A1
公开(公告)日：2022-06-16
申请号：US17653956
申请日：2022-03-08
申请人： Astec International Limited
发明人： Rochie Ligaya Sedillo Libby , Neil Maderas Reyes , Khanderao Madhav Gaikwad
IPC分类号： H02J9/06 , H02M3/145
摘要： An electric power supply comprises first and second input circuits for receiving first and second input DC voltages and a control circuit coupled to the first and second input circuits. The control circuit is configured to sense the first input DC voltage and the second input DC voltage and to enable the first input circuit and disable the second input circuit in response to the first input circuit having the highest input DC voltage to substantially prevent current from back feeding to the first input circuit from the second input circuit. The control circuit is also configured to enable the second input circuit and disable the first input circuit in response to the second input circuit having the highest input DC voltage to substantially prevent current from back feeding to the second input circuit from the first input circuit.

27. 发明授权

US10230310B2 Safety switch for photovoltaic systems 有权
公开(公告)号：US10230310B2
公开(公告)日：2019-03-12
申请号：US15250068
申请日：2016-08-29
申请人： Solaredge Technologies Ltd.
发明人： Yakir Loewenstern , Ilan Yoscovich , David Braginsky , Tzachi Glovinsky , Izak Assia
IPC分类号： H02J1/00 , H02J3/00 , H02M7/48 , H02M3/145 , H02S50/10 , H02S40/30 , H02S40/36 , H02H7/20 , H02H3/08
摘要： Various implementations described herein are directed to a methods and apparatuses for disconnecting, by a device, elements at certain parts of an electrical system. The method may include measuring operational parameters at certain locations within the system and/or receiving messages from control devices indicating a potentially unsafe condition, disconnecting and/or short-circuiting system elements in response, and reconnection the system elements when it is safe to do so. Certain embodiments relate to methods and apparatuses for providing operational power to safety switches during different modes of system operation.

28. 发明申请

US20180219475A1 ABSORPTION CIRCUIT, FEED CIRCUIT AND LIQUID CRYSTAL DISPLAY 审中-公开
公开(公告)号：US20180219475A1
公开(公告)日：2018-08-02
申请号：US15327612
申请日：2016-12-22
申请人： SHENZHEN CHINA STAR OPTOELECTRONICE TECHNOLOGY CO. LTD.
发明人： Dan CAO
IPC分类号： H02M1/44 , H02M3/145 , G09G3/36
CPC分类号： H02M1/44 , G09G3/20 , G09G3/36 , G09G2330/02 , G09G2330/021 , G09G2330/06 , H02M3/145 , H02M3/335 , H02M2001/0038 , H02M2001/0048 , H02M2001/0064 , H02M2001/344 , H02M2001/348
摘要： The absorption circuit of the present invention is applied in a feed circuit, wherein the absorption circuit comprises a comparison unit and a regulation unit, and the comparison unit is employed to receive a voltage of a transformer primary dotted terminal of the feed circuit, and to compare the voltage with a first preset voltage and a second preset voltage and to output a comparison result, and the regulation unit is employed to regulate a resistor and a capacitor coupled to the transformer according to the comparison result, wherein the first preset voltage is larger than the second preset voltage. Therefore, the present invention can control the resistor and the capacitor coupled to the transformer according to the leakage inductance (i.e. the voltage) of the transformer, and then to adaptively restrain the corresponding voltage peak and EMI.

29. 发明申请

US20140300338A1 CIRCUITS AND METHODS FOR CURRENT TO VOLTAGE CONVERSION 审中-公开
标题翻译：电流转换的电路和方法
公开(公告)号：US20140300338A1
公开(公告)日：2014-10-09
申请号：US13859286
申请日：2013-04-09
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Salvatore Giombanco
IPC分类号： H02M3/145
CPC分类号： H02M3/33507 , H02M3/33576 , H02M2001/0006
摘要： Circuits and methods for converting a current to an output voltage are disclosed herein. An embodiment of the circuit includes a first switch connected between a source of current and a first node and a second switch connected between the first node and a common voltage. The circuit also includes a first controller for controlling the state of the first switch and a second controller for controlling the state of the second switch. A capacitor is coupled to the first node; the voltage on the capacitor is the output voltage. When the second switch is open, the capacitor charges, and when the second switch is closed, the capacitor does not charge. The current flows through the primary inductance of a transformer.
摘要翻译：这里公开了将电流转换为输出电压的电路和方法。电路的实施例包括连接在电流源和第一节点之间的第一开关和连接在第一节点和公共电压之间的第二开关。电路还包括用于控制第一开关的状态的第一控制器和用于控制第二开关的状态的第二控制器。电容器耦合到第一节点; 电容上的电压是输出电压。当第二开关断开时，电容器充电，当第二开关闭合时，电容器不充电。电流流过变压器的初级电感。

30. 发明授权

US5329169A Voltage dropping circuit for semiconductor device 失效
标题翻译：半导体器件降压电路
公开(公告)号：US5329169A
公开(公告)日：1994-07-12
申请号：US936349
申请日：1992-08-28
申请人： Makoto Ihara
发明人： Makoto Ihara
IPC分类号： H02M3/145 , G05F3/24 , G05F3/02
CPC分类号： G05F3/242
摘要： A voltage dropping circuit for a semiconductor device is provided. The voltage dropping circuit includes a control unit for producing a reference voltage from a first specified voltage, an output unit for generating a second specified voltage which is a half of the first specified voltage in accordance with the reference voltage, a timer circuit for generating a driving pulse which becomes active intermittently, and a switch circuit for operating the control unit when the driving pulse is active and stopping the operation of the control unit when the driving pulse is not active.
摘要翻译：提供了一种用于半导体器件的降压电路。降压电路包括用于从第一指定电压产生参考电压的控制单元，用于根据参考电压产生作为第一指定电压的一半的第二指定电压的输出单元，用于产生驱动脉冲间歇地起作用;以及开关电路，用于当驱动脉冲有效时操作控制单元，并且当驱动脉冲不活动时停止控制单元的操作。

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