公开(公告)号：US20170331525A1

公开(公告)日：2017-11-16

申请号：US15518188

申请日：2015-08-17

Applicant: Continental Automotive GmbH

Inventor： Dieter SASS

IPC: H04B5/00 ,  H03K17/13

CPC classification number: H04B5/0093 ,  B60L1/00 ,  B60L11/182 ,  H03K17/13 ,  H03K17/136 ,  H03K17/162 ,  H04B5/0031 ,  H04B5/0037 ,  H04B5/0075 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/122 ,  Y02T90/14

Abstract: Driver circuit in which a capacitor (4), in a manner controlled by a switch control device (9) which is connected downstream of a current measuring device (8), is charged to a reference voltage (Ur) by means of a charging current (Ic2), and the charged capacitor is discharged in an oscillating manner via an inductor coil (1), wherein the discharging operation is terminated when the current (Ia) through the inductor coil has passed through an entire oscillation period or several oscillation periods, wherein a first controllable switch (5) is connected in series between a first non-reactive resistor (6) and the first capacitor (4) in one of two input paths. Furthermore, a second controllable switch (7) and a fourth controllable switch (14) are connected into two output paths, and a second non-reactive resistor (13) is connected between a second connection (X2) of the inductor coil (1) and a connection for Na reference potential (Um). The current measuring device (8) is connected between the fourth controllable switch (14) and the first capacitor (4).

公开(公告)号：US20170244241A1

公开(公告)日：2017-08-24

申请号：US15048072

申请日：2016-02-19

Applicant: Varian Semiconductor Equipment Associates, Inc.

Inventor： Adrian Wilson ,  Arsen Babayan ,  Herbert Piereder

IPC: H02H9/02

CPC classification number: H02H9/025 ,  H01H9/541 ,  H01H9/542 ,  H01H2009/544 ,  H02H3/087 ,  H03K17/13

Abstract: A fault current limiter may include a current limiting leg to transmit a first current and a control leg in parallel with the current limiting leg, the control leg to transmit a second current. The control leg may include a plurality of solid state switches arranged in electrical series with one another; a plurality of current monitors arranged in electrical series with the plurality of solid state switches; and at least one triggering circuit, wherein the plurality of current monitors are electrically coupled to the at least one triggering circuit, and wherein the at least one triggering circuit is optically coupled to the plurality of solid state switches.

公开(公告)号：US20160269019A1

公开(公告)日：2016-09-15

申请号：US14644655

申请日：2015-03-11

Applicant: Legend Power Systems Inc.

Inventor： Mark Petersen ,  Jonathan Stewart Thomson

IPC: H03K17/13

CPC classification number: H03K17/13 ,  G05F1/14 ,  H02M5/10 ,  H02M5/12 ,  H02M5/18

Abstract: Various embodiments are described herein for methods and systems of regulating incoming voltage supplied from a utility power supply to a load. In one example embodiment, a voltage regulator adapted to be electrically interposed between the utility power supply and the load, each having at least one phase, is provided. The voltage regulator comprises an autotransformer having, for each phase, a series winding and a regulating winding, where the regulating winding has a plurality of taps and the series winding has a load side for connection to the load and a supply side for connection to the utility power supply. The voltage regulator comprises a controller coupled to the autotransformer, where the controller is configured to operate the voltage regulator in a zero voltage reduction mode and an autotransformer mode, and where the controller comprises a zero voltage reduction mode switch connected across a first subset of at least two taps of each regulating winding and a normally closed contactor connected across a second subset of at least two taps of each regulating winding.

Abstract translation: 本文描述了用于调节从公用电力供应到负载的进入电压的方法和系统的各种实施例。 在一个示例性实施例中，提供了适于电连接在公用电源和负载之间的电压调节器，每个具有至少一个相位。 电压调节器包括自耦变压器，对于每个相，具有串联绕组和调节绕组，其中调节绕组具有多个抽头，并且串联绕组具有用于连接到负载的负载侧和用于连接到负载侧的供电侧 公用电源。 电压调节器包括耦合到自耦变压器的控制器，其中控制器被配置为在零电压降低模式和自耦变压器模式下操作电压调节器，并且其中控制器包括连接在第一子集上的零电压降低模式开关 每个调节绕组的至少两个抽头和连接在每个调节绕组的至少两个抽头的第二子集上的常闭接触器。

公开(公告)号：US20150263720A1

公开(公告)日：2015-09-17

申请号：US14424596

申请日：2012-08-28

Applicant: Tor-Eivind Moen ,  Wojciech Piasecki ,  Knut Rongve ,  Jan Wiik

Inventor： Tor-Eivind Moen ,  Wojciech Piasecki ,  Knut Rongve ,  Jan Wiik

IPC: H03K17/13 ,  H02J3/00 ,  H02P29/02

CPC classification number: H03K17/13 ,  H01H9/54 ,  H01H9/56 ,  H01H2009/546 ,  H02J3/00 ,  H02P29/02 ,  H03K17/136 ,  H03K2217/0009 ,  Y10T307/469 ,  Y10T307/76

Abstract: A switching device is provided for disconnecting or connecting an electric machine, a converter or a plurality of electrical loads supplied with AC power from a power supply and controlled by a control unit. The switching device includes a current sink and at least one mechanical switch in the switching device are arranged in a circuit. The current sink is arranged, upon receipt of a signal, to close and sink the current, and the at least one mechanical switch is arranged to open and break the current on receipt of a signal to open supplied to the electric machine when the current load is at or close to zero. A method and a computer program for carrying out the method are described.

Abstract translation: 提供一种开关装置，用于从电源断开或连接由电源提供的AC电力并由控制单元控制的电机，转换器或多个电负载。 开关装置包括电流吸收器，开关装置中的至少一个机械开关布置在电路中。 在接收到信号时，电流接收器布置成闭合和吸收电流，并且至少一个机械开关被布置成当电流负载接收到接收到供给电机的信号时打开和断开电流 处于或接近零。 描述用于执行该方法的方法和计算机程序。

公开(公告)号：US20150171853A1

公开(公告)日：2015-06-18

申请号：US14104137

申请日：2013-12-12

Applicant: Cirrus Logic, Inc.

Inventor： Eric J. King ,  John L. Melanson

IPC: H03K17/13 ,  H05B33/08

CPC classification number: H03K17/13 ,  H05B33/0815 ,  H05B33/0845 ,  Y02B20/346

Abstract: In at least one embodiment, the controller senses a leading edge, phase cut AC input voltage value to a switching power converter during a cycle of the AC input voltage. The controller senses the voltage value at a time prior to a zero crossing of the AC input voltage and utilizes the voltage value to determine the approximate zero crossing. In at least one embodiment, by determining an approximate zero crossing of the AC input voltage, the controller is unaffected by any disturbances of the dimmer that could otherwise make detecting the zero crossing problematic. The particular way of determining an approximate zero crossing is a matter of design choice. In at least one embodiment, the controller approximates the AC input voltage using a function that estimates a waveform of the AC input voltage and determines the approximate zero crossing of the AC input voltage from the approximation of the AC input voltage.

Abstract translation: 在至少一个实施例中，控制器在交流输入电压的周期期间感测到开关功率转换器的前沿，相切割AC输入电压值。 控制器感测交流输入电压过零之前的电压值，并利用电压值来确定近似过零点。 在至少一个实施例中，通过确定AC输入电压的近似零交叉，控制器不受调光器的任何干扰影响，否则可能会使检测到零交叉问题。 确定近似过零点的具体方法是设计选择的问题。 在至少一个实施例中，控制器使用估计AC输入电压的波形的函数来近似AC输入电压，并根据AC输入电压的近似确定AC输入电压的近似过零点。

公开(公告)号：US07786766B2

公开(公告)日：2010-08-31

申请号：US12265926

申请日：2008-11-06

Applicant: Robert C. Harris

Inventor： Robert C. Harris

IPC: H03K5/22

CPC classification number: H03K5/1536 ,  H03K17/13

Abstract: A control system includes a zero crossing detecting circuit for detecting a zero crossing of an AC signal. The circuit includes a transformer having a primary portion and a secondary portion. The primary portion receives the AC signal. The secondary portion comprises first and second terminals. The first terminal is biased at a first DC voltage level. An output switch is operatively connected to the second terminal and has an on state and an off state. The output switch selectively activates an output signal of the zero crossing detecting circuit according to an activation voltage level sensed by the output switch and corresponding to the zero crossing. While in the off state, the output switch is biased at a second DC voltage level. A voltage difference between the first and second DC voltage levels substantially equals the activation voltage level. A controller monitors the output signal and controls an operation based on the output signal.

Abstract translation: 控制系统包括用于检测AC信号的零交叉的过零检测电路。 电路包括具有主要部分和次要部分的变压器。 主要部分接收交流信号。 次级部分包括第一和第二端子。 第一端子被偏置在第一直流电压电平。 输出开关可操作地连接到第二端子并具有导通状态和断开状态。 输出开关根据由输出开关感测并对应于过零点的激活电压电平有选择地激活过零检测电路的输出信号。 当处于断开状态时，输出开关偏置在第二直流电压电平。 第一和第二直流电压电平之间的电压差基本上等于激活电压电平。 控制器监视输出信号并根据输出信号控制一个操作。

公开(公告)号：US20100045346A1

公开(公告)日：2010-02-25

申请号：US12503956

申请日：2009-07-16

Applicant: Tatsuho YOSHIDA

Inventor： Tatsuho YOSHIDA

IPC: H03K5/153

CPC classification number: H03K5/1536 ,  G01R19/175 ,  H03K17/13

Abstract: A zero-crossing detecting device that detects a zero-crossing point of AC voltage, the device has a full-wave rectifier that rectifies the AC voltage and outputs a full-wave rectified voltage, a charger that is charged at a predetermined charging voltage by application of the full-wave rectified voltage, wherein the charger outputs a charging current when the full-wave rectified voltage falls below the charging voltage, and a signal output part that outputs a zero-crossing detecting signal. The signal output part outputs the zero-crossing detecting signal when the charging current flows to the signal output part.

Abstract translation: 一种过零检测装置，其检测交流电压的过零点，该装置具有整流交流电压并输出全波整流电压的全波整流器，以预定充电电压充电的充电器由 施加全波整流电压，其中当全波整流电压降到充电电压以下时，充电器输出充电电流，以及输出过零检测信号的信号输出部。 当充电电流流向信号输出部分时，信号输出部输出过零检测信号。

公开(公告)号：US20040135618A1

公开(公告)日：2004-07-15

申请号：US10698809

申请日：2003-10-31

Applicant: STMicroelectronics S.A.

Inventor： Benoit Peron

IPC: H03K017/62

CPC classification number: H05B39/048 ,  H02M1/088 ,  H02M5/2573 ,  H02M5/293 ,  H03K17/13 ,  H05B39/08 ,  Y02B20/148

Abstract: A circuit for controlling two switches assembled in anti-parallel, comprising in series between two terminals of the anti-parallel assembly, two identical control stages respectively dedicated to each switch and between which is interposed a common impedance setting a phase angle for the turning-on of the switches, each stage comprising: a controllable current source for providing a current to a control electrode of the concerned switch; a capacitor for storing a supply voltage of at least the current source; an element of activation/deactivation of a the current source according to the voltage across the stage capacitor; and an assembly for discharging the capacitor.

Abstract translation: 一种用于控制反并联组装的两个开关的电路，包括串联在反并联组件的两个端子之间的两个相同的控制级，分别专用于每个开关，并且其间设置有公共阻抗， 每个级包括：用于向相关开关的控制电极提供电流的可控电流源; 用于存储至少所述电流源的电源电压的电容器; 根据两级电容器两端的电压激活/去激活电流源的元件; 以及用于放电电容器的组件。

公开(公告)号：US6051961A

公开(公告)日：2000-04-18

申请号：US250789

申请日：1999-02-11

Applicant: Yungtaek Jang ,  Milan M. Jovanovic

Inventor： Yungtaek Jang ,  Milan M. Jovanovic

IPC: H02M3/155 ,  H02M3/158 ,  H02M3/28 ,  H03K17/00 ,  H03K17/13 ,  H03K17/56 ,  G05F1/613

CPC classification number: H03K17/56 ,  H02M1/4208 ,  H02M3/158 ,  H03K17/13 ,  H02M2001/342 ,  H03K2217/0036 ,  Y02B70/126 ,  Y02B70/1491

Abstract: A circuit technique substantially reduces the switching losses of a pulse-width-modulated (PWM) converter caused by the turning-on (closing) and turning-off (opening) characteristic of the switch and the reverse-recovery characteristic of the rectifier. The losses are reduced by using a new switch cell which includes a snubber inductor, a clamp diode, a clamp capacitor, a main switch, and an auxiliary switch. The reverse-recovery-related losses are reduced by the snubber inductor connected in series with the main switch and the rectifier to control the rate of change of rectifier current during its turn-off. In addition, the main switch operates with zero-current and zero-voltage switching, while the auxiliary switch operates with zero-voltage switching. A proper operation of the proposed circuit requires overlapping gate drives of the main and the auxiliary switches. The circuit technique can be applied to any member of the PWM converter family.

Abstract translation: 电路技术大大降低了由开关的导通（关闭）和关断（开路）特性以及整流器的反向恢复特性引起的脉冲宽度调制（PWM）转换器的开关损耗。 通过使用包括缓冲电感器，钳位二极管，钳位电容器，主开关和辅助开关的新开关单元来减少损耗。 通过与主开关和整流器串联连接的缓冲电感器来减少反向恢复相关的损耗，以控制其关断期间整流器电流的变化率。 此外，主开关通过零电流和零电压开关工作，而辅助开关则以零电压开关工作。 所提出的电路的正确操作需要主开关和辅助开关的栅极驱动。 电路技术可以应用于PWM转换器系列的任何成员。

公开(公告)号：US5808851A

公开(公告)日：1998-09-15

申请号：US728446

申请日：1996-10-10

Applicant: Peter C. Birrell

Inventor： Peter C. Birrell

IPC: H01H9/56 ,  H03K17/13 ,  H01H47/22

CPC classification number: H01H9/56 ,  H03K17/13 ,  H01H2009/566

Abstract: A method of and apparatus for controlling the opening and/or closing of contacts of an electro-mechanical switching device in an alternating current circuit. Detection is made for the existence of a voltage having a level which is indicative of a back emf in a load circuit immediately following opening of the contacts, and if such a voltage level is detected an incremental adjustment is made in the phase angle at which successive actuations of the contacts are effected. This procedure is repeated under the control of a microprocessor until such time as the voltage which is indicative of back emf reduces to zero, this providing an indication that contact opening is occurring at a time corresponding to zero current crossing in the alternating current waveform.

Abstract translation: 一种用于控制交流电路中机电开关装置的触点的打开和/或关闭的方法和装置。 检测是否存在具有表示紧接在触点断开之后的负载电路中的反电动势的电平的电压，并且如果检测到这样的电压电平，则在连续的相位角进行增量调整 实现触点的致动。 在微处理器的控制下重复该过程，直到指示反电动势的电压降至零，这提供了在交流电波形中对应于零电流交叉的时间发生接触开路的指示。