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    METHODS AND APPARATUS TO CLAMP OVERVOLTAGES FOR ALTERNATING CURRENT SYSTEMS
    1.
    发明申请
    METHODS AND APPARATUS TO CLAMP OVERVOLTAGES FOR ALTERNATING CURRENT SYSTEMS 审中-公开
    封闭电流系统的方法和装置

    公开(公告)号：US20150016003A1

    公开(公告)日：2015-01-15

    申请号：US14338946

    申请日：2014-07-23

    Applicant: Texas Instruments Incorporated

    Inventor： Stephen Christopher Terry ,  Paul L. Brohlin

    IPC: H02H3/20 ,  H02H7/125 ,  H02H7/122

    CPC classification number: H02H3/20 ,  H02H7/122 ,  H02H7/1252 ,  H02H9/04 ,  H02J7/025 ,  H02J50/12

    Abstract: Methods and apparatus to clamp overvoltages for inductive power transfer systems are described herein. An example overvoltage protection circuit is described, including a first terminal configured to receive an alternating current signal for conversion to a second signal, a capacitor, a first switch configured to selectively electrically couple the capacitor to the first terminal based on an overvoltage detection signal to reduce an overvoltage on the second signal, and an overvoltage detector. The example overvoltage detector is configured to determine a signal level of the second signal and, in response to determining that the signal level of the second signal is greater than a threshold, to output the overvoltage detection signal to cause the switch to electrically couple the capacitor between the first terminal and a second terminal.

    Abstract translation: 本文描述了用于钳位感应功率传输系统的过电压的方法和装置。 描述了示例性过电压保护电路，包括被配置为接收用于转换为第二信号的交流信号的第一端子，电容器，被配置为基于过电压检测信号将电容器选择性地电耦合到第一端子的第一开关， 降低第二信号的过电压，以及过电压检测器。 示例性过电压检测器被配置为确定第二信号的信号电平，并且响应于确定第二信号的信号电平大于阈值，输出过电压检测信号以使开关电耦合电容器 在第一端子和第二端子之间。

    Methods and apparatus to clamp overvoltages for alternating current systems
    3.
    发明授权
    Methods and apparatus to clamp overvoltages for alternating current systems 有权
    用于钳位交流电系统的方法和装置

    公开(公告)号：US09350159B2

    公开(公告)日：2016-05-24

    申请号：US14338946

    申请日：2014-07-23

    Applicant: Texas Instruments Incorporated

    Inventor： Stephen Christopher Terry ,  Paul L. Brohlin

    IPC: H01F27/42 ,  H02H3/20 ,  H02H9/04 ,  H02H7/122 ,  H02H7/125 ,  H02J7/02

    CPC classification number: H02H3/20 ,  H02H7/122 ,  H02H7/1252 ,  H02H9/04 ,  H02J7/025 ,  H02J50/12

    Abstract: Methods and apparatus to clamp overvoltages for inductive power transfer systems are described herein. An example overvoltage protection circuit is described, including a first terminal configured to receive an alternating current signal for conversion to a second signal, a capacitor, a first switch configured to selectively electrically couple the capacitor to the first terminal based on an overvoltage detection signal to reduce an overvoltage on the second signal, and an overvoltage detector. The example overvoltage detector is configured to determine a signal level of the second signal and, in response to determining that the signal level of the second signal is greater than a threshold, to output the overvoltage detection signal to cause the switch to electrically couple the capacitor between the first terminal and a second terminal.

    Abstract translation: 本文描述了用于钳位感应功率传输系统的过电压的方法和装置。 描述了示例性过电压保护电路，包括被配置为接收用于转换为第二信号的交流信号的第一端子，电容器，被配置为基于过电压检测信号将电容器选择性地电耦合到第一端子的第一开关， 降低第二信号的过电压，以及过电压检测器。 示例性过电压检测器被配置为确定第二信号的信号电平，并且响应于确定第二信号的信号电平大于阈值，输出过电压检测信号以使开关电耦合电容器 在第一端子和第二端子之间。

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