公开(公告)号：US09391503B2

公开(公告)日：2016-07-12

申请号：US14508467

申请日：2014-10-07

申请人： ABB Oy

发明人： Ki-Bum Park ,  Sami Pettersson ,  Francisco Canales

IPC分类号： H02M5/45 ,  H02M1/32 ,  H02H7/12 ,  H02H7/122 ,  H02H7/125 ,  H02M5/42 ,  H02M5/458

CPC分类号： H02M1/32 ,  H02H7/1216 ,  H02H7/1225 ,  H02H7/1255 ,  H02M5/42 ,  H02M5/4585

摘要： A converter circuit with short-circuit protection can include a plurality of phase legs having a series connection of normally-on switches, between voltage rails of a DC voltage link, a DC link capacitor, and AC voltage connection points between the normally-on switches. A phase-to-phase short-circuit protection circuit includes a parallel connection of a resistive component and a controllable switch. The phase-to-phase short-circuit protection circuit including a first terminal connected to an AC voltage connection point and a second terminal forms an input or an output of the converter circuit; and a controllable switch is connected in series with the DC link capacitor. Upon lack of control of the normally-on switches the controllable switch of the at least one phase-to-phase short-circuit protection circuit and the controllable switch of the phase leg short-circuit protection circuit are adapted to be controlled to a non-conductive state.

摘要翻译： 具有短路保护的A转换器电路可以包括多个相位支路，其具有常开开关的串联连接，直流电压链路的电压轨道，直流链路电容器和常开开关之间的交流电压连接点 。 相间短路保护电路包括电阻元件和可控开关的并联连接。 包括连接到AC电压连接点的第一端子和第二端子的相间短路保护电路形成转换器电路的输入或输出; 并且可控开关与DC链路电容器串联连接。 由于缺少常开开关的控制，所述至少一个相间短路保护电路的可控开关和相桥脚短路保护电路的可控开关适于被控制为非相位短路保护电路， 导电状态。

公开(公告)号：US09369035B2

公开(公告)日：2016-06-14

申请号：US13024940

申请日：2011-02-10

申请人： Cyrus David Harbourt ,  Mark Eugene Shepard

发明人： Cyrus David Harbourt ,  Mark Eugene Shepard

IPC分类号： H02H9/00 ,  H02M1/32 ,  H02H7/12

CPC分类号： H02M1/32 ,  H02H3/445 ,  H02H7/12 ,  H02H9/041

摘要： A power converter includes a first phase leg including a first di/dt reactor and a first control section, the first di/dt reactor and the first control section being coupled between an active line and a neutral line. The power converter also includes a first current crowbar coupled between the active line and the neutral and a controller coupled to the first di/dt reactor, the control section and the first current crowbar and configured to activate the current crowbar based on a voltage across the first di/dt reactor.

摘要翻译： 功率转换器包括包括第一di / dt电抗器和第一控制部分的第一相支路，第一di / dt电抗器和第一控制部分耦合在有源线路和中线之间。 功率转换器还包括耦合在有源线路和中线线圈之间的第一电流撬棒以及耦合到第一di / dt电抗器，控制部分和第一电流撬棒的控制器，并且被配置为基于 第一个di / dt反应器。

公开(公告)号：US09362737B2

公开(公告)日：2016-06-07

申请号：US14500665

申请日：2014-09-29

申请人： ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD.

发明人： Dongze Yang ,  Yaming Cao ,  Yunchao Zhang ,  Lieyi Fang

IPC分类号： H02M3/335 ,  H02H7/12 ,  H02M1/32 ,  H02M1/00

CPC分类号： H02M3/33515 ,  H02H7/1213 ,  H02M1/08 ,  H02M1/32 ,  H02M3/33507 ,  H02M2001/0009

摘要： System and method for protecting a power converter. The system includes a first comparator configured to receive a first threshold signal and a first signal and to generate a first comparison signal. The first signal is associated with an input current for a power converter. Additionally, the system includes a second comparator configured to receive a second threshold signal and the first signal and to generate a second comparison signal. The second threshold signal is different from the first threshold signal in magnitude. Moreover, the system includes a first detection component configured to receive at least the second comparison signal, detect the second comparison signal only if one or more predetermined conditions are satisfied, and generate a first detection signal based on at least information associated with the detected second comparison signal.

摘要翻译： 保护电源转换器的系统和方法。 该系统包括被配置为接收第一阈值信号和第一信号并产生第一比较信号的第一比较器。 第一个信号与功率转换器的输入电流相关联。 另外，该系统包括第二比较器，其被配置为接收第二阈值信号和第一信号并产生第二比较信号。 第二阈值信号的大小不同于第一阈值信号。 此外，该系统包括被配置为至少接收第二比较信号的第一检测组件，仅在满足一个或多个预定条件时检测第二比较信号，并且至少基于与检测到的第二比较信号相关联的信息产生第一检测信号 比较信号。

公开(公告)号：US09294024B2

公开(公告)日：2016-03-22

申请号：US14256537

申请日：2014-04-18

申请人： Fanuc Corporation

发明人： Youichirou Ooi

IPC分类号： H02P7/00 ,  H02P27/06 ,  H02P29/02 ,  H02H11/00 ,  H02H7/12 ,  H02H7/122

CPC分类号： H02P7/00 ,  H02H7/1213 ,  H02H7/1227 ,  H02H11/005 ,  H02H11/006 ,  H02P27/06 ,  H02P29/024 ,  H02P29/0241 ,  H02P29/032

摘要： A motor drive device according to one embodiment of the present invention includes a converter (2) for converting an AC voltage input from a main power supply into a DC voltage, a DC link unit (4) for rectifying the DC voltage output from the converter, an inverter (10) for converting the DC voltage rectified by the DC link unit into an AC voltage for driving a motor using a semiconductor switching element, a voltage application unit (6) that is provided independently of the main power supply to apply a voltage to the DC link unit, a voltage detector (7) for detecting a voltage of the DC link unit after application of the voltage by the voltage application unit, and an abnormality determination unit (8) for determining the presence or absence of an abnormality of the DC link unit based on the voltage detected by the voltage detector.

摘要翻译： 根据本发明的一个实施例的电动机驱动装置包括用于将从主电源输入的交流电压转换为直流电压的转换器（2），用于整流从转换器输出的直流电压的直流链路单元（4） ，用于将由DC链路单元整流的DC电压转换为用于使用半导体开关元件驱动电动机的AC电压的逆变器（10），独立于主电源设置的电压施加单元（6） 电压施加单元，用于在施加电压施加单元之后检测DC链路单元的电压的电压检测器（7），以及用于确定异常存在或不存在的异常判定单元（8） 基于由电压检测器检测的电压的DC链路单元。

公开(公告)号：US09293911B2

公开(公告)日：2016-03-22

申请号：US13873240

申请日：2013-04-30

申请人： ScienBiziP Consulting (Shen Zhen) Co., Ltd.

发明人： Cheng-Lung Chiang

IPC分类号： H02H9/02 ,  H02H7/12 ,  H02H9/00

CPC分类号： H02H9/001 ,  H02H7/12

摘要： An exemplary protection circuit is provided to provide a controlled, latency-free, steady voltage. The circuit includes a switch module, an induction, a response module, a protection chip, and a sequence controller. The protection chip turns on the switch module when the voltage provided by a capacitor is less than a threshold voltage, thus the connection between the power supply device and the conversion circuit is enabled. The protection chip further outputs a high level signal to the sequence controller upon receiving an induction signal from the induction module. The sequence controller outputs a low level signal to the response module upon receiving the high level signal, to turn off a connection between the first end of the capacitor and ground, otherwise, a high signal is output to turn on the connection between the first end of the capacitor and ground.

摘要翻译： 提供了示例性的保护电路以提供受控的，无潜伏期的稳定电压。 该电路包括开关模块，感应电路，响应模块，保护芯片和序列控制器。 当电容器提供的电压小于阈值电压时，保护芯片接通开关模块，从而使电源装置与转换电路之间的连接成为可能。 当从感应模块接收到感应信号时，保护芯片还向序列控制器输出高电平信号。 序列控制器在接收到高电平信号时向响应模块输出低电平信号，以关闭电容器的第一端和地之间的连接，否则输出高信号以接通第一端 的电容和接地。

公开(公告)号：US09236801B2

公开(公告)日：2016-01-12

申请号：US14102251

申请日：2013-12-10

申请人： Chengdu Monolithic Power Systems Co., Ltd.

发明人： Qian Ouyang

IPC分类号： H02H3/00 ,  H02M3/158 ,  H02H7/12 ,  H02M3/156 ,  H02J9/00 ,  H02M1/00

CPC分类号： H02M3/158 ,  H02H7/1213 ,  H02J9/005 ,  H02M3/156 ,  H02M3/1588 ,  H02M2001/0032 ,  H02M2001/0058 ,  Y02B70/1466 ,  Y02B70/1491 ,  Y02B70/16

摘要： A switch mode power supply having an output terminal configured to provide an output voltage, the switch mode power supply has a first switch, a second switch and a control circuit. The control circuit is configured to provide a first switching control signal to turn ON and turn OFF the first switch, and when the switch mode power supply works in a power saving mode, the first switch is turned ON if a voltage feedback signal is less than a reference voltage and a current flowing through the second switch is less than a bias current.

摘要翻译： 开关模式电源具有被配置为提供输出电压的输出端子，开关模式电源具有第一开关，第二开关和控制电路。 控制电路被配置为提供第一开关控制信号以接通和断开第一开关，并且当开关模式电源工作在省电模式时，如果电压反馈信号小于第一开关，则第一开关导通 参考电压和流经第二开关的电流小于偏置电流。

公开(公告)号：US20150318684A1

公开(公告)日：2015-11-05

申请号：US14650322

申请日：2013-12-03

申请人： Osram GmbH

发明人： Xiaoming FU ,  Yong PENG ,  Haibin XIAO ,  Ju ZHANG

IPC分类号： H02H7/12 ,  H05B33/08 ,  H02M3/04

CPC分类号： H02H7/1213 ,  H02M3/04 ,  H05B33/0887

摘要： Various embodiments may relate to a circuit device and an electronic apparatus. The circuit device may include a main circuit unit, an energy store and output unit and a valley detection unit. The main circuit unit transfers energy to the energy store and output unit according to a detected voltage of the valley detection unit. Furthermore, the circuit device described above also includes a malfunction processing unit for preventing the main circuit unit from transferring energy to the energy store and output unit by adjusting the detected voltage of the valley detection unit in the case that the energy store and output unit has an output malfunction. Hereby, elements in the circuit device may be prevented from being damaged by the output malfunction. Moreover, the circuit device has a simple structure and is cost effective.

摘要翻译： 各种实施例可以涉及电路设备和电子设备。 电路装置可以包括主电路单元，能量存储和输出单元以及谷值检测单元。 主电路单元根据谷检测单元的检测电压将能量传送到能量存储和输出单元。 此外，上述电路装置还包括故障处理单元，用于通过在能量存储和输出单元具有的情况下调整谷值检测单元的检测电压来防止主电路单元向能量存储和输出单元传送能量 输出故障。 因此，可以防止电路装置中的元件被输出故障损坏。 此外，电路装置结构简单，成本低廉。

公开(公告)号：US09136782B2

公开(公告)日：2015-09-15

申请号：US14096614

申请日：2013-12-04

申请人： The Boeing Company

发明人： Christopher Pete Benson ,  Douglas C. Cameron

IPC分类号： H02P6/00 ,  H02H7/08 ,  H02H7/085 ,  H02H7/12 ,  H02P9/00 ,  H02P9/10

CPC分类号： H02P25/03 ,  B60L1/00 ,  B60L1/003 ,  B60L3/003 ,  B60L3/0046 ,  B60L3/0061 ,  B60L7/14 ,  B60L7/22 ,  B60L11/1866 ,  B60L15/06 ,  B60L15/08 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/427 ,  B60L2240/429 ,  B60L2240/527 ,  B60L2240/529 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2240/80 ,  H02H7/0838 ,  H02H7/0844 ,  H02H7/085 ,  H02H7/12 ,  H02M1/00 ,  H02P6/00 ,  H02P6/085 ,  H02P6/28 ,  H02P9/006 ,  H02P9/10 ,  H02P23/14 ,  H02P25/034 ,  H02P27/085 ,  H02P29/0241 ,  H02P29/027 ,  H02P29/032 ,  H02P2207/05 ,  Y02T10/644 ,  Y02T10/7005 ,  Y02T10/7061

摘要： A method and apparatus for controlling a motor. The motor comprises windings. A switch bridge comprising a plurality of switches is configured to couple a power source to the windings. A motor controller is configured to control the plurality of switches. An undesired condition identifier is configured to identify an undesired condition when the motor is providing power to the power source, wherein the undesired condition is defined with respect to a characteristic of the power source. An undesired condition reducer is configured to reduce the undesired condition in response to identifying the undesired condition by the undesired condition identifier.

摘要翻译： 一种用于控制电动机的方法和装置。 电机包括绕组。 包括多个开关的开关桥被配置为将电源耦合到绕组。 电动机控制器被配置为控制多个开关。 非期望条件标识符被配置为当电动机向电源提供电力时识别不期望的状况，其中相对于电源的特性定义不期望的状况。 响应于通过不需要的条件标识符识别不期望的状况，不期望的条件减少器被配置为减少不期望的状况。

公开(公告)号：US20150236498A1

公开(公告)日：2015-08-20

申请号：US14423050

申请日：2013-08-23

申请人： ALSTOM Technology Ltd

发明人： Colin Charnock Davidson ,  Jean-Pierre Dupraz

IPC分类号： H02H3/087 ,  H02H7/12

CPC分类号： H02H3/087 ,  H02H7/12 ,  H02H7/1213 ,  H02H7/1257 ,  H02H9/02 ,  H02H9/041 ,  H02J3/36 ,  H02M1/32 ,  H02M2001/0006 ,  H02M2001/348 ,  H03K17/08148 ,  H03K17/167 ,  H03K17/168 ,  H03K17/74 ,  H03K2217/0081 ,  Y02E60/60

摘要： An extinguishing branch (28) for an electrical circuit (32) includes: a snubber circuit (36) including an energy storage limb (40), wherein the energy storage limb (40) includes first and second energy storage limb portions separated by a first junction (46) to define a first voltage divider, and each energy storage limb portion includes at least one energy storage device (48,50); and an arrester limb (38) connected across the energy storage limb (40), wherein the arrester limb (38) includes first and second arrester limb portions separated by a second junction (52) to define a second voltage divider, and each arrester limb portion includes at least one arrester element (54,56), wherein the first and second junctions (46,52) are connected to define a voltage divider bridge, and the voltage divider bridge is electrically coupleable to the electrical circuit (32) so as to provide, in use, a driving voltage to drive the electrical circuit (32).

摘要翻译： 用于电路（32）的灭火支路（28）包括：缓冲电路（36），其包括能量存储臂（40），其中所述储能臂（40）包括第一和第二能量存储肢体部分， （46）以限定第一分压器，并且每个能量存储肢体部分包括至少一个能量存储装置（48,50）; 以及连接在能量存储肢体（40）上的避雷器（38），其中所述避雷器臂（38）包括由第二接合部（52）分隔开以限定第二分压器的第一和第二避雷器肢体部分，并且每个避雷器肢体 部分包括至少一个避雷器元件（54,56），其中所述第一和第二结（46,52）连接以限定分压器桥，并且所述分压器桥电连接到所述电路（32），以便 在使用中提供用于驱动电路（32）的驱动电压。

公开(公告)号：US20150214742A1

公开(公告)日：2015-07-30

申请号：US14583805

申请日：2014-12-29

申请人： Delta Electronics (Shanghai) Co., Ltd.

发明人： Xiu-Feng YU ,  Zhi-Jiang DENG ,  Guo-Dong YIN ,  Ben WU

IPC分类号： H02J4/00 ,  H02H3/18 ,  H02H7/12

CPC分类号： H02J4/00 ,  H02H3/18 ,  H02H7/1203 ,  H02J1/102 ,  H02J1/108 ,  H02J2001/106 ,  Y10T307/729

摘要： A multi-power supply system and a control method thereof are disclosed. The multi-power supply system includes a first power-supply unit, a second power-supply unit, a switching unit, and a control unit. The power-supply unit comprises a reverse current prevention circuit, a converter circuit, and an input circuit. The switching unit is electrically coupled to the first power-supply unit and the second power-supply unit. When the first and second input circuits are in normal operation, the control unit controls the switching unit to be turned off to allow the first power-supply unit and the second power-supply unit to supply power to a load. When one of the first and second input circuits is in abnormal operation, the control unit controls the switching unit to be turned on. The switching unit cooperates with the first and second reverse current prevention circuits to achieve the switching of input.

摘要翻译： 公开了一种多电源系统及其控制方法。 多电源系统包括第一电源单元，第二电源单元，开关单元和控制单元。 电源单元包括反向电流防止电路，转换器电路和输入电路。 开关单元电耦合到第一电源单元和第二电源单元。 当第一和第二输入电路处于正常操作时，控制单元控制切换单元被关闭以允许第一电源单元和第二电源单元向负载供电。 当第一和第二输入电路之一处于异常操作时，控制单元控制开关单元导通。 开关单元与第一和第二反向电流防止电路协作以实现输入的切换。