公开(公告)号：US20170054393A1

公开(公告)日：2017-02-23

申请号：US14828079

申请日：2015-08-17

申请人： ABB Technology Ltd.

发明人： Wen Ouyang ,  Jiaqi Liang ,  Li Qi

IPC分类号： H02P9/00 ,  H02K11/04 ,  H02K3/16

CPC分类号： H02P9/006 ,  H02K3/16 ,  H02K3/20 ,  H02K11/046 ,  H02K19/10 ,  H02M1/081 ,  H02M7/1557

摘要： Technologies for reducing peak fault output current in a DC power generation system include a generator having a reduced damper winding and a controller to control a rectifier array to generate a DC power output. In some embodiments, the generator may have no damper windings, may have damper windings including a reduced number of damper bars, and/or may have damper windings having separated end ring mounts for each damper bar. The controller is configured to control the rectifier array so as to reduce oscillations of the DC output that may be due to the reduced damper windings. To do so, the controller is configured to generate the control signal based on an oscillation component of the DC power output. For example, the controller may generate an oscillation correction signal based on the DC power output and adjust a firing angle set point of the rectifier array based on the oscillation correction signal.

摘要翻译： 用于降低直流发电系统中的峰值故障输出电流的技术包括具有减小的阻尼绕组的发电机和用于控制整流器阵列以产生直流功率输出的控制器。 在一些实施例中，发电机可以没有阻尼器绕组，可以具有包括减少数量的阻尼杆的阻尼绕组，和/或可以具有用于每个阻尼器条的具有分离的端环安装件的阻尼绕组。 控制器被配置为控制整流器阵列，以便减少可能由减小的阻尼绕组引起的DC输出的振荡。 为此，控制器被配置为基于DC功率输出的振荡分量产生控制信号。 例如，控制器可以基于直流功率输出产生振荡校正信号，并且基于振荡校正信号调整整流器阵列的触发角设定点。

公开(公告)号：US09502963B2

公开(公告)日：2016-11-22

申请号：US14294948

申请日：2014-06-03

申请人： Sony Corporation

发明人： Tomohiro Koga

IPC分类号： H02M3/155 ,  G05F1/70 ,  H02M1/42 ,  H02M7/155 ,  H02M1/00

CPC分类号： H02M1/4225 ,  G05F1/70 ,  H02M3/155 ,  H02M7/1557 ,  H02M2001/0009 ,  H02M2001/0032 ,  H02M2001/0058 ,  H02M2003/1552 ,  Y02B70/126 ,  Y02B70/1491 ,  Y02B70/16

摘要： Provided is a switching power supply device in a critical mode, including a load detection section that detects a load. When the detected load is lighter than a setting value, an upper limit of a switching frequency is lowered stepwise.

摘要翻译： 提供了一种关键模式的开关电源装置，包括检测负载的负载检测部。 当检测到的负载比设定值轻时，开关频率的上限被逐步降低。

公开(公告)号：US09408261B2

公开(公告)日：2016-08-02

申请号：US14246770

申请日：2014-04-07

申请人： Power Integrations, Inc.

发明人： Christian Pura Angeles ,  Marvin C. Espino

IPC分类号： H05B33/08 ,  H02M7/155 ,  H02M7/217 ,  H02M1/00

CPC分类号： H05B33/0815 ,  H02M7/1557 ,  H02M7/2176 ,  H02M2001/0022 ,  H05B33/0809 ,  H05B33/0845

摘要： A circuit to be utilized for an LED driver bleeder activation. The circuit comprises a circuit block for timing a duration of any removed portion of a rectified line signal. The input of the circuit to be coupled to receive the phase controlled rectified line signal through a voltage divider. Comparing the divided rectified line signal with a threshold voltage and output a comparison result. A timer coupled to the comparator and responsive to the comparison result to time the duration of the removed portion of the rectified line signal and activate the bleeder activation circuitry to turn on the switching element of the bleeder to sink a controlled current from the input line.

摘要翻译： 用于LED驱动器泄放器激活的电路。 电路包括用于定时整流线路信号的任何去除部分的持续时间的电路块。 待耦合的电路的输入端通过分压器接收相控整流线路信号。 将分频整流线信号与阈值电压进行比较，并输出比较结果。 一个定时器，其耦合到所述比较器，并且响应于所述比较结果来对所述经整流的线路信号的去除部分的持续时间进行计时，并启动所述放电器启动电路以接通所述放电器的所述开关元件以从所述输入线吸收受控电流。

公开(公告)号：US09397207B2

公开(公告)日：2016-07-19

申请号：US14828326

申请日：2015-08-17

申请人： David Schie

发明人： David Schie

IPC分类号： H01L29/66 ,  H01L21/332 ,  H01L29/745 ,  H01L29/74

CPC分类号： H02M7/145 ,  H01L27/0921 ,  H01L27/1027 ,  H01L29/102 ,  H01L29/7455 ,  H02M7/1557 ,  H02M2001/4291 ,  H01L2924/1302 ,  H01L2924/13026

摘要： An improved gated thyristor that utilizes less silicon area than IGBT, BIPOLARs or MOSFETs sized for the same application is provided. Embodiments of the inventive thyristor have a lower gate charge, and a lower forward drop for a given current density. Embodiments of the thyristor once triggered have a latch structure that does not have the same Cgd or Ccb capacitor that must be charged from the gate, and therefore the gated thyristor is cheaper to produce, and requires a smaller gate driver, and takes up less space than standard solutions. Embodiments of the inventive thyristor provide a faster turn off speed than the typical >600 ns using a modified MCT structure which results in the improved tail current turn off profile (

公开(公告)号：US20150357929A1

公开(公告)日：2015-12-10

申请号：US14828335

申请日：2015-08-17

申请人： DAVID SCHIE

发明人： DAVID SCHIE

IPC分类号： H02M7/155

CPC分类号： H02M7/145 ,  H01L29/102 ,  H01L29/7455 ,  H02M7/1557 ,  H02M2001/4291

摘要： An improved gated thyristor that utilizes less silicon area than IGBT, BIPOLARs or MOSFETs sized for the same application is provided. Embodiments of the inventive thyristor have a lower gate charge, and a lower forward drop for a given current density. Embodiments of the thyristor once triggered have a latch structure that does not have the same Cgd or Ceb capacitor that must be charged from the gate, and therefore the gated thyristor is cheaper to produce, and requires a smaller gate driver, and takes up less space than standard solutions. Embodiments of the inventive thyristor provide a faster turn off speed than the typical >600 ns using a modified MCT structure which results in the improved tail current turn off profile (

摘要翻译： 提供了一种改进的门控晶闸管，其利用的硅面积小于IGBT，BIPOLAR或MOSFET的尺寸适用于相同的应用。 本发明的晶闸管的实施例具有较低的栅极电荷，以及用于给定电流密度的较低的正向压降。 一旦触发的晶闸管的实施例具有不具有必须从栅极充电的相同Cgd或Ceb电容器的锁存结构，因此栅极晶闸管产生便宜，并且需要较小的栅极驱动器并且占用更少的空间 比标准解决方案。 本发明的晶闸管的实施例提供比使用改进的MCT结构的典型> 600ns更快的关断速度，其导致改进的尾电流关断曲线（<250ns）。 此外，器件的串联电阻降低而不包括电压阻断能力。 最后，教导了正的唯一的栅极驱动装置是使用栅极端子来模拟饱和电流的方法。

公开(公告)号：US20150085537A1

公开(公告)日：2015-03-26

申请号：US14483042

申请日：2014-09-10

申请人： Silergy Semiconductor Technology (Hangzhou) LTD

发明人： Xiaodong Huang

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  H02M1/12 ,  H02M1/4258 ,  H02M7/066 ,  H02M7/1557 ,  H02M2001/0032 ,  Y02B70/126 ,  Y02B70/16

摘要： In one embodiment, a method of controlling an AC-DC power converter, can include: (i) receiving, by a filter capacitor, a first branch current from an input current of the AC-DC power converter; (ii) receiving, by a power converting circuit, a second branch current from the input current; (iii) receiving, by the power converting circuit, a feedback signal that represents an output signal of the power converting circuit, and a triangular wave signal that is determined by the first branch current; (iv) generating a first conduction time based on the feedback signal such that the power converting circuit produces a first converting current; and (v) generating a second conduction time based on the triangular wave signal such that the power converting circuit produces a second converting current having a same absolute value as the first branch current.

摘要翻译： 在一个实施例中，一种控制AC-DC电力转换器的方法可以包括：（i）通过滤波电容器从AC-DC电力转换器的输入电流接收第一分支电流; （ii）由电力转换电路从输入电流接收第二分支电流; （iii）由功率转换电路接收表示功率转换电路的输出信号的反馈信号和由第一分支电流确定的三角波信号; （iv）基于所述反馈信号产生第一导通时间，使得所述功率转换电路产生第一转换电流; 和（v）基于三角波信号产生第二导通时间，使得功率转换电路产生具有与第一分支电流相同的绝对值的第二转换电流。

公开(公告)号：US20150016158A1

公开(公告)日：2015-01-15

申请号：US14381878

申请日：2012-03-02

申请人： Namwook Paik

发明人： Namwook Paik

IPC分类号： H02M7/217 ,  H02M7/12

CPC分类号： H02M7/217 ,  H02M3/07 ,  H02M7/12 ,  H02M7/155 ,  H02M7/1557

摘要： According to one aspect, embodiments of the invention provide a power supply system comprising an input line configured to receive input AC power, a first capacitor coupled to the input line, a second capacitor, a controller, a rectifier having an input coupled to the first capacitor and an output coupled to the second capacitor, the second capacitor further coupled to the controller, and a switch selectively coupled across the first capacitor, and configured to selectively bypass the first capacitor, wherein the controller is configured to detect a voltage across the second capacitor, operate the switch to charge the second capacitor at a first rate if the voltage is above a predetermined threshold, and operate the switch to charge the second capacitor at a second rate if the voltage is below a predetermined threshold.

摘要翻译： 根据一个方面，本发明的实施例提供了一种电源系统，其包括被配置为接收输入AC电力的输入线，耦合到输入线的第一电容器，第二电容器，控制器，整流器，其具有耦合到第一 电容器和耦合到第二电容器的输出，第二电容器还耦合到控制器，以及选择性地耦合在第一电容器两端并被配置为选择性地旁路第一电容器的开关，其中控制器被配置为检测第二电容器 电容器，如果电压高于预定阈值，则操作开关以第一速率对第二电容器充电，并且如果电压低于预定阈值，则操作开关以第二速率对第二电容器充电。

公开(公告)号：US20140333228A1

公开(公告)日：2014-11-13

申请号：US14246770

申请日：2014-04-07

申请人： Power Integrations, Inc.

发明人： Christian Pura Angeles ,  Marvin C. Espino

IPC分类号： H02M3/156 ,  H05B33/08

CPC分类号： H05B33/0815 ,  H02M7/1557 ,  H02M7/2176 ,  H02M2001/0022 ,  H05B33/0809 ,  H05B33/0845

摘要： A circuit to be utilized for an LED driver bleeder activation. The circuit comprises a circuit block for timing a duration of any removed portion of a rectified line signal. The input of the circuit to be coupled to receive the phase controlled rectified line signal through a voltage divider. Comparing the divided rectified line signal with a threshold voltage and output a comparison result. A timer coupled to the comparator and responsive to the comparison result to time the duration of the removed portion of the rectified line signal and activate the bleeder activation circuitry to turn on the switching element of the bleeder to sink a controlled current from the input line.

摘要翻译： 用于LED驱动器泄放器激活的电路。 电路包括用于定时整流线路信号的任何去除部分的持续时间的电路块。 待耦合的电路的输入端通过分压器接收相控整流线路信号。 将分频整流线信号与阈值电压进行比较，并输出比较结果。 一个定时器，其耦合到所述比较器，并且响应于所述比较结果来对所述经整流的线路信号的去除部分的持续时间进行计时，并启动所述放电器启动电路以接通所述放电器的所述开关元件以从所述输入线吸收受控电流。

公开(公告)号：US20140217947A1

公开(公告)日：2014-08-07

申请号：US14127728

申请日：2012-05-30

申请人： Espen Haugan

发明人： Espen Haugan

IPC分类号： H02M7/155 ,  H02P23/00 ,  H02M5/451

CPC分类号： H02M7/1557 ,  H02M5/451 ,  H02M7/1552 ,  H02M7/219 ,  H02M2007/2195 ,  H02P23/28 ,  Y02B70/1408

摘要： Short circuit safe rectifier stage for a subsea power grid It is described a rectifier stage (251) for converting an input AC voltage to an output voltage, the rectifier stage comprising: a first AC input terminal (255); a second AC input terminal (257), wherein the input AC voltage is applicable between the first input terminal and the second input terminal; a first DC output terminal (267); a second DC output terminal (268); a first thyristor (261) connected between the first DC output terminal (267) and the first AC input terminal (255); a second thyristor (263) connected between the first DC output terminal (267) and the second AC input terminal (257); a gate control circuit (272) adapted and connected to control a first conductance state of the first thyristor (261) and to control a second conductance state of the second thyristor (263) such that the first thyristor and the second thyristor provide a rectified AC voltage between the first DC output terminal (267) and the second DC output terminal (268) as the output voltage, wherein the gate control circuit has a current signal input terminal for receiving a current signal indicative of a current flowing from the first AC input terminal (255) through the first thyristor (261) to the first DC output terminal (267), wherein the control circuit is arranged and connected to control, based on the current signal, the first conductance state of the first thyristor.

摘要翻译： 用于海底电网的短路安全整流级描述了用于将输入AC电压转换为输出电压的整流器级（251），整流器级包括：第一AC输入端（255）; 第二AC输入端子（257），其中所述输入AC电压可应用于所述第一输入端子和所述第二输入端子之间; 第一DC输出端子（267）; 第二直流输出端子（268）; 连接在第一DC输出端子（267）和第一AC输入端子（255）之间的第一晶闸管（261）; 连接在第一DC输出端子（267）和第二AC输入端子（257）之间的第二晶闸管（263）; 适于并连接以控制第一晶闸管（261）的第一导通状态并控制第二晶闸管（263）的第二导通状态的门控制电路（272），使得第一晶闸管和第二晶闸管提供整流的AC 第一直流输出端子（267）和第二直流输出端子（268）之间的电压作为输出电压，其中栅极控制电路具有电流信号输入端子，用于接收指示从第一交流输入端流过的电流的电流信号 端子（255）通过第一晶闸管（261）连接到第一DC输出端子（267），其中控制电路被布置和连接以基于电流信号来控制第一晶闸管的第一导通状态。

公开(公告)号：US20100308892A1

公开(公告)日：2010-12-09

申请号：US12863974

申请日：2009-02-17

申请人： Kenichi Sakakibara

发明人： Kenichi Sakakibara

IPC分类号： H03K17/60

CPC分类号： H02M5/4585 ,  H02M5/4505 ,  H02M5/451 ,  H02M5/452 ,  H02M7/1557 ,  H02M2001/0009

摘要： A current-source converter includes high-arm side switching elements and low-arm side switching elements. A voltage between the DC power supply lines is detected as a line voltage of an input line, based on a conduction pattern of the high-arm side switching elements and the low-arm side switching elements.

摘要翻译： 电流源转换器包括高臂侧开关元件和低臂侧开关元件。 基于高臂侧开关元件和低臂侧开关元件的导通图案，将直流电源线之间的电压作为输入线的线电压进行检测。