Method and structure for detecting an overcurrent in a triac
    1.
    发明授权
    Method and structure for detecting an overcurrent in a triac 有权
    用于检测三端双向可控硅开关元件中的过电流的方法和结构

    公开(公告)号:US09019675B2

    公开(公告)日:2015-04-28

    申请号:US13242928

    申请日:2011-09-23

    IPC分类号: H02H3/08 H02H9/02 G01R19/165

    CPC分类号: G01R19/16571

    摘要: A method comprising: a) during at least part of a conduction phase of the triac, measuring the gate potential of the triac; and b) comparing a value based on said measurement with a reference threshold and deducing the presence or the absence of an overcurrent based on said comparison.

    摘要翻译: 一种方法,包括:a)在三端双向串联的传导阶段的至少部分期间,测量三端双向可控硅开关元件的栅极电位; 以及b)将基于所述测量的值与参考阈值进行比较,并且基于所述比较推断过电流的存在或不存在。

    Method and Structure for Detecting an Overcurrent in a Triac
    2.
    发明申请
    Method and Structure for Detecting an Overcurrent in a Triac 有权
    用于检测三端双向可控硅开关中的过电流的方法和结构

    公开(公告)号:US20120087052A1

    公开(公告)日:2012-04-12

    申请号:US13242928

    申请日:2011-09-23

    IPC分类号: H02H3/08 G01R19/00

    CPC分类号: G01R19/16571

    摘要: A method comprising: a) during at least part of a conduction phase of the triac, measuring the gate potential of the triac; and b) comparing a value based on said measurement with a reference threshold and deducing the presence or the absence of an overcurrent based on said comparison.

    摘要翻译: 一种方法,包括:a)在三端双向串联的传导阶段的至少一部分期间,测量三端双向可控硅开关元件的栅极电位; 以及b)将基于所述测量的值与参考阈值进行比较,并且基于所述比较推断过电流的存在或不存在。

    Power supply circuit with low stand-by losses
    3.
    发明授权
    Power supply circuit with low stand-by losses 有权
    电源电路具有低待机损耗

    公开(公告)号:US09263966B2

    公开(公告)日:2016-02-16

    申请号:US13332393

    申请日:2011-12-21

    IPC分类号: H02M5/42 H02M7/155 H02M1/00

    摘要: A circuit for converting an A.C. power supply voltage into a D.C. voltage, including: a first branch capable of providing a first power level; and a second parallel branch capable of providing a second power level greater than the first one, the second branch including a bidirectional activation switch.

    摘要翻译: 一种用于将交流电源电压转换成直流电压的电路,包括:能够提供第一功率电平的第一分支; 以及能够提供大于第一功率电平的第二功率电平的第二并联支路,所述第二支路包括双向启动开关。

    CONTROL OF A TRIAC FOR THE STARTING OF A MOTOR
    4.
    发明申请
    CONTROL OF A TRIAC FOR THE STARTING OF A MOTOR 有权
    控制电机起动的三叉车

    公开(公告)号:US20090174359A1

    公开(公告)日:2009-07-09

    申请号:US12391947

    申请日:2009-02-24

    IPC分类号: H02P1/44

    CPC分类号: H02P1/42

    摘要: A method and a circuit for controlling a triac intended to be series-connected with a resistive element of positive temperature coefficient or a capacitive element, and a winding for starting an asynchronous motor, for supply by an A.C. voltage, the present invention including the steps of: detecting a voltage representative of the voltage across the series connection of the element and of the triac; comparing this detected voltage with respect to a threshold; and blocking a turning back on of the triac when the threshold has been exceeded.

    摘要翻译: 一种用于控制旨在与正温度系数的电阻元件串联连接的三端双向可控硅开关元件或电容元件的电路,以及用于启动异步电动机的绕组,用于由AC电压供电,本发明包括步骤 :检测表示元件和三端双向可控硅开关元件的串联连接上的电压的电压; 将该检测到的电压相对于阈值进行比较; 并且当超过阈值时阻止三端双向可控硅开关的反转。

    Power dimmer
    5.
    发明申请
    Power dimmer 审中-公开
    电源调光

    公开(公告)号:US20050285576A1

    公开(公告)日:2005-12-29

    申请号:US11166566

    申请日:2005-06-24

    IPC分类号: H02M5/293 H03K17/567 G05F1/10

    摘要: A circuit for controlling the power in a load supplied by an A.C. voltage and directly connected to a first terminal of application of the A.C. voltage, including two isolated-gate bipolar transistors, connected in anti-parallel between a second terminal of application of the A.C. voltage and the load; circuitry for detecting the zero crossing of the A.C. supply voltage in a first direction; circuitry for generating, at each period of the supply voltage, a pulse of predetermined duration for controlling a first one of said transistors, the time of occurrence of the pulse being conditioned by the detection of the zero crossing of the A.C. voltage and by a desired power reference setting a variable delay of occurrence of the pulse with respect to the detected zero crossing; and circuitry for inverting and transferring said pulse to the second transistor.

    摘要翻译: 一种用于控制由AC电压提供并直接连接到施加AC电压的第一端子的负载中的功率的电路,包括两个隔离栅双极晶体管,反相并联连接在AC的第二端 电压和负载; 用于检测交流电源电压在第一方向上的过零点的电路; 电路,用于在电源电压的每个周期产生用于控制所述晶体管中的第一个的预定持续时间的脉冲,通过检测交流电压的零交叉来调节脉冲的发生时间和期望的 功率参考设置相对于检测到的过零点的脉冲发生的可变延迟; 以及用于将所述脉冲反转并传送到第二晶体管的电路。

    Switching circuit and method for use in a switching circuit
    6.
    发明授权
    Switching circuit and method for use in a switching circuit 有权
    用于开关电路的开关电路和方法

    公开(公告)号:US06356060B1

    公开(公告)日:2002-03-12

    申请号:US09321400

    申请日:1999-05-28

    申请人: Laurent Gonthier

    发明人: Laurent Gonthier

    IPC分类号: G05F110

    摘要: The present invention relates to a bidirectional switching circuit including, in series, a bidirectional switching element controllable to be turned off and turned on, and a bidirectional conduction element forming a dipole and automatically selecting the conduction direction.

    摘要翻译: 双向开关电路技术领域本发明涉及一种双向开关电路,其包括串联可控制为截止和导通的双向开关元件,以及形成偶极子并自动选择导通方向的双向导通元件。

    Circuit having a bidirectional switch for supplying a load from an AC voltage supply
    7.
    发明授权
    Circuit having a bidirectional switch for supplying a load from an AC voltage supply 有权
    具有用于从AC电压源提供负载的双向开关的电路

    公开(公告)号:US06208126B1

    公开(公告)日:2001-03-27

    申请号:US09447130

    申请日:1999-11-22

    申请人: Laurent Gonthier

    发明人: Laurent Gonthier

    IPC分类号: G05F1455

    CPC分类号: H03K17/687

    摘要: A circuit is provided for supplying a load from an AC voltage supply. The circuit includes a control circuit and a bidirectional switch coupled in series with the load. The bidirectional switch includes two one-way switches connected in antiparallel, and the control circuit controls the bidirectional switch based on a relatively low DC voltage. The bidirectional switch is connected to a first terminal of the AC voltage supply, and the DC voltage is referenced to the first terminal of the AC voltage supply. Additionally, an apparatus connected to an AC voltage supply and a relatively low DC voltage is provided. The apparatus includes a control circuit, a load to be supplied by the AC voltage supply, and a bidirectional switch coupled in series with the load. The bidirectional switch includes two one-way switches connected in antiparallel, and the control circuit controls the bidirectional switch based on the DC voltage. The bidirectional switch is connected to a first terminal of the AC voltage supply, and the DC voltage is referenced to the first terminal of the AC voltage supply. In one preferred embodiment, each of the two one-way switches includes a MOS transistor coupled in series with a diode.

    摘要翻译: 提供用于从AC电压源提供负载的电路。 电路包括与负载串联耦合的控制电路和双向开关。 双向开关包括反并联连接的两个单向开关,控制电路基于相对较低的直流电压来控制双向开关。 双向开关连接到交流电压源的第一端,直流电压参考交流电源的第一端。 此外,提供了连接到AC电压源和相对低的DC电压的装置。 该装置包括控制电路,由交流电源供给的负载和与负载串联耦合的双向开关。 双向开关包括反并联连接的两个单向开关,控制电路基于直流电压控制双向开关。 双向开关连接到交流电压源的第一端,直流电压参考交流电源的第一端。 在一个优选实施例中,两个单向开关中的每一个包括与二极管串联耦合的MOS晶体管。

    Power dimmer
    8.
    发明申请
    Power dimmer 审中-公开
    电源调光

    公开(公告)号:US20070216375A1

    公开(公告)日:2007-09-20

    申请号:US11655754

    申请日:2007-01-19

    IPC分类号: G05F1/10

    摘要: A circuit for controlling the power in a load supplied by an A.C. voltage and directly connected to a first terminal of application of the A.C. voltage, including two isolated-gate bipolar transistors, connected in anti-parallel between a second terminal of application of the A.C. voltage and the load; circuitry for detecting the zero crossing of the A.C. supply voltage in a first direction; circuitry for generating, at each period of the supply voltage, a pulse of predetermined duration for controlling a first one of said transistors, the time of occurrence of the pulse being conditioned by the detection of the zero crossing of the A.C. voltage and by a desired power reference setting a variable delay of occurrence of the pulse with respect to the detected zero crossing; and circuitry for inverting and transferring said pulse to the second transistor.

    摘要翻译: 一种用于控制由AC电压提供并直接连接到施加AC电压的第一端子的负载中的功率的电路,包括两个隔离栅双极晶体管,反相并联连接在AC的第二端 电压和负载; 用于检测交流电源电压在第一方向上的过零点的电路; 电路,用于在电源电压的每个周期产生用于控制所述晶体管中的第一个的预定持续时间的脉冲,通过检测交流电压的零交叉来调节脉冲的发生时间和期望的 功率参考设置相对于检测到的过零点的脉冲发生的可变延迟; 以及用于将所述脉冲反转并传送到第二晶体管的电路。

    Dimmer for resistive or capacitive loads
    9.
    发明授权
    Dimmer for resistive or capacitive loads 有权
    调光器用于电阻或电容负载

    公开(公告)号:US07119497B2

    公开(公告)日:2006-10-10

    申请号:US10934137

    申请日:2004-09-03

    IPC分类号: H05B37/00

    摘要: A power dimmer for an A.C. load comprising, between two terminals, two one-way switches connected in anti-parallel and controllable to be turned off and turned on, each switch being controlled by a driver circuit setting the turn-off times of each of the switches with respect to a reference value, each driver circuit being associated with a supply circuit comprising a voltage storage element in series with a one-way rectifying element, all in parallel with a voltage-limiting element, the two supply circuits being connected to each other by a capacitor and the respective supply voltages of the driver circuits being sampled across the respective capacitors of each supply circuit.

    摘要翻译: 一种用于交流负载的功率调光器,包括两个端子之间的两个单向开关,其以反并联方式连接并可控制以截止和接通,每个开关由驱动器电路控制,驱动器电路设置每个开关的关断时间 所述开关相对于参考值,每个驱动器电路与包括与单向整流元件串联的电压存储元件的电源电路相关联,所述电压存储元件全部与限压元件并联,所述两个电源电路连接到 彼此通过电容器并且驱动器电路的各个电源电压在每个电源电路的相应电容器上被采样。

    Protection of an A.C. switch
    10.
    发明授权
    Protection of an A.C. switch 有权
    保护交流开关

    公开(公告)号:US06975122B2

    公开(公告)日:2005-12-13

    申请号:US10679996

    申请日:2003-10-07

    CPC分类号: H03K17/0828 H03K17/6874

    摘要: A circuit for detecting an overcurrent in an element in which an A.C. supply current flows, including a first comparator, assigned to the halfwaves of a first sign of the A.C. power supply, receiving on a reference input a first reference voltage setting a first one of the thresholds, a second comparator, assigned to the halfwaves of a second sign of the A.C. power supply, receiving on a reference input a second reference voltage setting a second one of the thresholds, and an input stage providing, to respective interconnected read inputs of the comparators, a voltage proportional to the voltage across the element, the stage including at least one first resistive element introducing a voltage drop between a first one of the terminals of the element and the read inputs.

    摘要翻译: 一种用于检测交流电源电流流动的元件中的过电流的电路,包括分配给所述交流电源的第一符号的所述半波的第一比较器,在参考输入端接收第一参考电压,所述第一参考电压设置第一参考电压 阈值,第二比较器,被分配给交流电源的第二符号的半波;在参考输入端接收设置阈值中的第二个参考电压的第二参考电压;以及输入级, 所述比较器是与所述元件两端的电压成比例的电压,所述级包括至少一个第一电阻元件,所述至少一个第一电阻元件在所述元件的所述端子的所述第一端子与所述读取的输入之间引入电压降。