公开(公告)号：US12095355B2

公开(公告)日：2024-09-17

申请号：US17801683

申请日：2020-12-16

Applicant: OMRON Corporation

Inventor： Kohei Tanino ,  Masaaki Nagano ,  Tomonori Watanabe

IPC: H02M1/32 ,  H02M1/092 ,  H02M3/156 ,  H02H9/04 ,  H03K17/691

CPC classification number: H02M1/32 ,  H02M1/092 ,  H02M3/156 ,  H02H9/041 ,  H03K17/691

Abstract: A power supply circuit includes a transistor having a drain connected to an input voltage, a gate, and a source; a diode; a choke coil; a capacitor; a transformer; a control circuit that provides a drive signal for turning on and off the transistor to a primary winding of the transformer based on an output voltage; an overvoltage detection circuit that outputs an overvoltage signal when the output voltage is an overvoltage; and a short circuit that short-circuits the gate and the source of the transistor in response to the overvoltage signal.

公开(公告)号：US08848324B2

公开(公告)日：2014-09-30

申请号：US14032960

申请日：2013-09-20

Applicant: Rockwell Automation Technologies, Inc.

Inventor： David G. Fullington ,  Raymond G. Sladky ,  Daniel L. Stewart ,  Michael L. Gasperi ,  Scott P. Miles

IPC: H02H5/04 ,  H02H7/08 ,  H02M7/5387 ,  H02P29/02 ,  H02M1/32 ,  H02M1/092 ,  H02P6/14 ,  G05B9/02

CPC classification number: H02P6/14 ,  H02M1/092 ,  H02M1/32 ,  H02M7/53875 ,  H02P29/02

Abstract: A drive circuit for delivering high-level power to a load, and method of stopping a high power load from operating, are disclosed. The drive circuit includes a high power circuit capable of being coupled to the load and delivering the high level power thereto, and a to power circuit that controls the high power circuit. The low power circuit includes a first circuit portion that provides at least one control signal that is at least indirectly communicated to the high power circuit and that controls the delivering of the high level power by the high power circuit, and a second circuit portions coupled to the first circuit portion. The second circuit portion is capable of disabling the first circuit portion so that the at least one control signal avoids taking on values that would result in the high power circuit delivering the high level power to the load.

Abstract translation: 公开了一种用于向负载提供高电平的驱动电路以及停止高功率负载的操作方法。 驱动电路包括能够耦合到负载并且向其馈送高电平的高功率电路，以及控制高功率电路的电源电路。 低功率电路包括第一电路部分，其提供至少间接地传递到高功率电路并且控制由高功率电路传递高电平功率的至少一个控制信号，以及耦合到 第一电路部分。 第二电路部分能够禁用第一电路部分，使得至少一个控制信号避免接受将导致高功率电路向负载提供高电平功率的值。

公开(公告)号：US20140021896A1

公开(公告)日：2014-01-23

申请号：US14032960

申请日：2013-09-20

Applicant: Rockwell Automation Technologies, Inc.

Inventor： David G. Fullington ,  Raymond G. Sladky ,  Daniel L. Stewart ,  Michael L. Gasperi ,  Scott P. Miles

IPC: H02P6/14

CPC classification number: H02P6/14 ,  H02M1/092 ,  H02M1/32 ,  H02M7/53875 ,  H02P29/02

Abstract: A drive circuit for delivering high-level power to a load, and method of stopping a high power load from operating, are disclosed. The drive circuit includes a high power circuit capable of being coupled to the load and delivering the high level power thereto, and a to power circuit that controls the high power circuit. The low power circuit includes a first circuit portion that provides at least one control signal that is at least indirectly communicated to the high power circuit and that controls the delivering of the high level power by the high power circuit, and a second circuit portions coupled to the first circuit portion. The second circuit portion is capable of disabling the first circuit portion so that the at least one control signal avoids taking on values that would result in the high power circuit delivering the high level power to the load.

Abstract translation: 公开了一种用于向负载提供高电平的驱动电路以及停止大功率负载的操作方法。 驱动电路包括能够耦合到负载并且向其馈送高电平的高功率电路，以及控制高功率电路的电源电路。 低功率电路包括第一电路部分，其提供至少间接地传递到高功率电路并且控制由高功率电路传递高电平功率的至少一个控制信号，以及耦合到 第一电路部分。 第二电路部分能够禁用第一电路部分，使得至少一个控制信号避免接受将导致高功率电路向负载提供高电平功率的值。

公开(公告)号：US07384203B2

公开(公告)日：2008-06-10

申请号：US11632050

申请日：2006-03-15

Applicant: Yoshio Nagatsuka

Inventor： Yoshio Nagatsuka

IPC: G02B6/36

CPC classification number: H02M1/092 ,  G01R31/42 ,  H02M1/08 ,  H02M7/48

Abstract: A power conversion apparatus is obtained which detects a mis-connection of optical fiber cables based on a difference in mode of feedback signals, and changes a phase sequence in an automatic manner only with the use of a logical composition of a microcomputer control section. A drive circuit 2 for driving a semiconductor device 1 includes a test signal recognition section 31 that outputs inherent feedback signals 32 in response to a test signal 30 from a microcomputer control section 3. The microcomputer control section 3 includes an optical fiber mis-connection detection section 29, 33 that detects a mis-connection state of the optical fibers 8 based on the inherent feedback signals 32. The optical fiber mis-connection detection section compares the inherent feedback signals 32 with the individual normal feedback signals stored beforehand, respectively, and detects a mis-connection state of the optical fibers 8 when it is indicated that at least one inherent feedback signal does not coincide with a corresponding normal feedback signal.

Abstract translation: 获得了基于反馈信号的模式的差异来检测光纤电缆的错误连接的电力转换装置，并且仅通过使用微型计算机控制部的逻辑构成自动地改变相位序列。 用于驱动半导体器件1的驱动电路2包括测试信号识别部分31，其响应于来自微计算机控制部分3的测试信号30输出固有反馈信号32。 微型计算机控制部3包括基于固有反馈信号32检测光纤8的误连接状态的光纤误连接检测部29,33。 光纤误连接检测部分分别将固有反馈信号32与预先存储的各个正常反馈信号进行比较，并且当指示至少一个固有反馈信号不表示时检测光纤8的错误连接状态 与相应的正常反馈信号一致。

公开(公告)号：US20080129116A1

公开(公告)日：2008-06-05

申请号：US12029229

申请日：2008-02-11

Applicant: Arlie D. Stonestreet ,  Harold G. Kraus ,  Darin E. Genereux

Inventor： Arlie D. Stonestreet ,  Harold G. Kraus ,  Darin E. Genereux

IPC: B60L1/00 ,  H02J1/00

CPC classification number: B64D15/12 ,  B64C27/04 ,  H02M1/092 ,  Y10T307/391

Abstract: Embodiments of the present invention provide a system (10) operable to provide power and control through a rotating interface. The system (10) generally includes a control unit (12) and a distributor unit (14). The control unit (12) is operable to generate a power signal having a plurality of power transitions. The distributor unit (14) is operable to rotatably couple with the control unit (12), receive the power signal from the control unit (12), identify power transitions within the power signal, and generate a plurality of output signals corresponding to the identified power transitions. The distributor unit (14) is also at least substantially powered by the power signal to enable generation of the output signals.

Abstract translation: 本发明的实施例提供一种可操作以通过旋转接口提供功率和控制的系统（10）。 系统（10）通常包括控制单元（12）和分配器单元（14）。 控制单元（12）可操作以产生具有多个功率转换的功率信号。 分配器单元（14）可操作以与控制单元（12）可旋转地耦合，从控制单元（12）接收功率信号，识别功率信号内的功率转换，并产生对应于所识别的多个输出信号 功率转换 分配器单元（14）也至少基本上由功率信号供电，以使得能够产生输出信号。

公开(公告)号：US20070189675A1

公开(公告)日：2007-08-16

申请号：US11632050

申请日：2006-03-15

Applicant: Yoshio Nagatsuka

Inventor： Yoshio Nagatsuka

IPC: G02B6/36

CPC classification number: H02M1/092 ,  G01R31/42 ,  H02M1/08 ,  H02M7/48

Abstract: A power conversion apparatus is obtained which detects a mis-connection of optical fiber cables based on a difference in mode of feedback signals, and changes a phase sequence in an automatic manner only with the use of a logical composition of a microcomputer control section. A drive circuit 2 for driving a semiconductor device 1 includes a test signal recognition section 31 that outputs inherent feedback signals 32 in response to a test signal 30 from a microcomputer control section 3. The microcomputer control section 3 includes an optical fiber mis-connection detection section 29, 33 that detects a mis-connection state of the optical fibers 8 based on the inherent feedback signals 32. The optical fiber mis-connection detection section compares the inherent feedback signals 32 with the individual normal feedback signals stored beforehand, respectively, and detects a mis-connection state of the optical fibers 8 when it is indicated that at least one inherent feedback signal does not coincide with a corresponding normal feedback signal.

Abstract translation: 获得了基于反馈信号的模式的差异来检测光纤电缆的错误连接的电力转换装置，并且仅通过使用微型计算机控制部的逻辑构成自动地改变相位序列。 用于驱动半导体器件1的驱动电路2包括测试信号识别部分31，其响应于来自微计算机控制部分3的测试信号30输出固有反馈信号32。 微型计算机控制部3包括基于固有反馈信号32检测光纤8的误连接状态的光纤误连接检测部29,33。 光纤误连接检测部分分别将固有反馈信号32与预先存储的各个正常反馈信号进行比较，并且当指示至少一个固有反馈信号不表示时检测光纤8的错误连接状态 与相应的正常反馈信号一致。

公开(公告)号：US06801065B2

公开(公告)日：2004-10-05

申请号：US10658485

申请日：2003-09-08

Applicant: Taichi Hoshino ,  Ryouma Matsuo

Inventor： Taichi Hoshino ,  Ryouma Matsuo

IPC: H03K300

CPC classification number: H02M1/44 ,  H02M1/092 ,  H02M1/32 ,  H03K19/00353 ,  H03K19/017536

Abstract: A main driver, in which NPN and PNP bipolar transistors are connected in series, is driven by an output of a pre-driver having a first CMOS circuit driven by an input signal. An assist circuit having a second CMOS circuit driven by the input signal and also having a current limit resistor is provided, and an output of the main driver is assisted by an output of the assist circuit. Therefore, it is possible to reduce a short circuit current in a transistor output circuit, to increase and decrease an output signal to an power-supply potential (upper limit) and a ground potential (lower limit), and to smoothly change the output signal near the power-supply potential and the ground potential. Further, an intensity of electromagnetic noise is reduced and a switching output having a sufficiently large amplitude is supplied.

Abstract translation: NPN和PNP双极晶体管串联连接的主要驱动器由具有由输入信号驱动的第一CMOS电路的预驱动器的输出驱动。 提供了具有由输入信号驱动并且还具有限流电阻器的第二CMOS电路的辅助电路，并且主驱动器的输出由辅助电路的输出辅助。 因此，可以减小晶体管输出电路中的短路电流，将输出信号增加和减少到电源电位（上限）和接地电位（下限），并且平滑地改变输出信号 靠近电源电位和地电位。 此外，降低了电磁噪声的强度，并且提供了具有足够大振幅的开关输出。

公开(公告)号：US20020196006A1

公开(公告)日：2002-12-26

申请号：US10177575

申请日：2002-06-21

Applicant: Champion Microelectronic Corp.

Inventor： Jeffrey H. Hwang

IPC: G05F001/40

CPC classification number: H02M1/4225 ,  H02M1/0845 ,  H02M1/092 ,  H02M1/32 ,  H02M1/36 ,  H02M3/33523 ,  H02M2001/007 ,  Y02B70/126 ,  Y02P80/112 ,  Y10S323/901 ,  Y10S323/908

Abstract: A volt-second balanced, power factor correction (PFC), pulse-width modulation (PWM) two-stage power converter. A first PFC stage receives an AC input signal and forms a regulated intermediate output voltage. A second stage receives the intermediate output voltage and forms a regulated DC output voltage. A level of the intermediate output voltage is monitored and used to adjust the duty cycle of a main power switch in the PWM stage. By adjusting the PWM duty cycle based on the level of the intermediate output voltage, rather than the DC output voltage, the PWM converter is volt-second balanced. Further, when a controller for the power converter is implemented as an integrated circuit, a pin is not required for monitoring the regulated DC output. Accordingly, the number of pins is minimized.

Abstract translation: 一个伏秒平衡功率因数校正（PFC），脉冲宽度调制（PWM）两级功率转换器。 第一PFC级接收AC输入信号并形成调节的中间输出电压。 第二级接收中间输出电压并形成稳定的直流输出电压。 监控中间输出电压的电平，并用于调整PWM阶段主电源开关的占空比。 通过基于中间输出电压的电平而不是直流输出电压调整PWM占空比，PWM转换器是二阶平衡的。 此外，当用于功率转换器的控制器被实现为集成电路时，不需要引脚来监视调节的DC输出。 因此，引脚的数量被最小化。

公开(公告)号：US5452196A

公开(公告)日：1995-09-19

申请号：US281785

申请日：1994-07-28

Applicant: Katsuro Itoh

Inventor： Katsuro Itoh

IPC: H02H7/12 ,  H02M1/00 ,  H02M1/092 ,  H03K17/082 ,  H03K17/10 ,  H03K17/79 ,  H02H7/125

CPC classification number: H02H7/1206 ,  H02M1/092 ,  H03K17/0824 ,  H03K17/105 ,  H03K17/79

Abstract: A protection system for a thyristor valve composed of a plurality of thyristors connected in series. The protection system includes a forward voltage detection circuit for generating a forward voltage signal, a first reverse voltage detection circuit for detecting that a reverse voltage in excess of a first reverse voltage level is applied to the thyristor to generate a first reverse voltage signal, and a second reverse voltage detection circuit for detecting that a reverse voltage in excess of a second reverse voltage level larger than the first reverse voltage level is applied to the thyristor to generate a second reverse voltage signal. The protection system further includes a protection circuit for detecting a first time period during when the first reverse voltage signal is outputted and a second time period during when the first reverse voltage signal is outputted and the second reverse voltage signal is not outputted, for adding the first and the second time periods to generate an addition signal, for generating a decision signal when the addition signal is smaller than a second predetermined value, and for generating a protection gate pulse based on the decision signal when the forward voltage is applied to the thyristor. The protection gate pulse is applied to all of the thyristors.

Abstract translation: 一种由串联连接的多个晶闸管组成的可控硅阀的保护系统。 保护系统包括用于产生正向电压信号的正向电压检测电路，用于检测超过第一反向电压电平的反向电压被施加到晶闸管以产生第一反向电压信号的第一反向电压检测电路，以及 第二反向电压检测电路，用于检测超过第一反向电压电平的第二反向电压电平的反向电压被施加到晶闸管以产生第二反向电压信号。 该保护系统还包括保护电路，用于检测在输出第一反向电压信号期间的第一时间段和在输出第一反向电压信号期间的第二时间段，并且不输出第二反向电压信号， 第一和第二时间段，用于产生相加信号，用于当加法信号小于第二预定值时产生判定信号，并且当正向电压施加到晶闸管时，基于判定信号产生保护门脉冲 。 保护门脉冲施加到所有晶闸管。

公开(公告)号：US4675542A

公开(公告)日：1987-06-23

申请号：US742804

申请日：1985-06-10

Applicant: Gerd Thiele

Inventor： Gerd Thiele

IPC: G01R31/26 ,  H02M1/092 ,  H03K17/72

CPC classification number: H02M1/092

Abstract: Disclosed is a circuit arrangement for monitoring a thyristor via a signal transmitting device which is connected on its input side in shunt with the thyristor and to the output of which a light emitting diode is connected for sending light signals to an evaluating device. To obtain a particularly simple and therefore operationally reliable design of such a circuit arrangement, and to achieve the emission of light signals with particularly high light output, the signal transmitting device contains a rectifier arrangement followed by an integrating stage, followed in turn by a threshold voltage switch which changes to a current-conducting state as soon as the voltage drop across it exceeds a predetermined threshold value. No separate power supply is required.

Abstract translation: 公开了一种用于通过信号传输装置监测晶闸管的电路装置，该信号传输装置在其输入侧与晶闸管并联连接，并且其输出端连接有发光二极管以将光信号发送到评估装置。 为了获得这种电路装置的特别简单且因此可操作可靠的设计，并且为了实现具有特别高的光输出的光信号的发射，信号发射装置包含整流器装置，随后是积分级，然后依次为阈值 一旦其上的电压降超过预定阈值，电压开关变为导通状态。 不需要单独的电源。