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    • 2. 发明授权
    • Ground fault detection circuit, and power supply device
    • 接地故障检测电路和电源设备
    • US08791702B2
    • 2014-07-29
    • US13256386
    • 2010-08-11
    • Hikaru MiuraAkihiko Kudou
    • Hikaru MiuraAkihiko Kudou
    • G01N27/416H02J7/00
    • H02H7/18B60L3/0069G01R31/025H02H3/17
    • A ground fault detection circuit according to the present invention is a ground fault detection circuit that detects the occurrence of a ground fault of a battery that is insulated, and that includes: an AC signal generation section that generates an AC signal; a first capacitive element that couples the AC signal generated by the AC signal generation section to the battery; a voltage division section that voltage divides the AC signal that is coupled to the battery by the first capacitive element; a ground fault detection unit that detects a ground fault of the battery based on an AC component of an input signal; and a second capacitive element that couples the AC signal that has been voltage divided by the voltage division section to the ground fault detection unit as the input signal.
    • 根据本发明的接地故障检测电路是检测绝缘电池的接地故障的发生的接地故障检测电路,其包括:产生AC信号的AC信号生成部; 第一电容元件,其将由AC信号产生部分产生的AC信号耦合到电池; 电压分割部,其将所述第一电容元件与所述电池连接的所述交流信号进行分压; 接地故障检测单元,其基于输入信号的AC分量来检测电池的接地故障; 以及将已经被分压部分电压分压的AC信号耦合到接地故障检测单元的第二电容元件作为输入信号。
    • 5. 发明申请
    • Ground Fault Detection Circuit, and Power Supply Device
    • 接地故障检测电路和电源设备
    • US20120043967A1
    • 2012-02-23
    • US13256386
    • 2010-08-11
    • Hikaru MiuraAkihiko Kudou
    • Hikaru MiuraAkihiko Kudou
    • G01R31/12
    • H02H7/18B60L3/0069G01R31/025H02H3/17
    • A ground fault detection circuit according to the present invention is a ground fault detection circuit that detects the occurrence of a ground fault of a battery that is insulated, and that includes: an AC signal generation section that generates an AC signal; a first capacitive element that couples the AC signal generated by the AC signal generation section to the battery; a voltage division section that voltage divides the AC signal that is coupled to the battery by the first capacitive element; a ground fault detection unit that detects a ground fault of the battery based on an AC component of an input signal; and a second capacitive element that couples the AC signal that has been voltage divided by the voltage division section to the ground fault detection unit as the input signal.
    • 根据本发明的接地故障检测电路是检测绝缘电池的接地故障的发生的接地故障检测电路,其包括:产生AC信号的AC信号生成部; 第一电容元件,其将由AC信号产生部分产生的AC信号耦合到电池; 电压分割部,其将所述第一电容元件与所述电池连接的所述交流信号进行分压; 接地故障检测单元,其基于输入信号的AC分量来检测电池的接地故障; 以及将已经被分压部分电压分压的AC信号耦合到接地故障检测单元的第二电容元件作为输入信号。