发明名称 |
Multiplex voltage measurement apparatus |
摘要 |
A multiplex voltage measurement apparatus configured to detect the breakage of a line coupling a voltage detection terminal and an electric leakage detection circuit includes a multiplex voltage measurement section and an electric leakage detection circuit. The multiplex voltage measurement section is configured to measure the voltage of each of N serially connected voltage sources via (N+1) voltage detection terminals coupled to a capacitor. The electric leakage detection circuit is configured to measure an insulation impedance between the voltage sources and a chassis. A sample switch in the leakage detection circuit prevents the formation of a loop connecting the electric leakage detection circuit to the voltage measurement section in the event of a disconnection between a voltage detection terminal and the multiplex voltage measurement section, allowing the detection of such a disconnection.
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申请公布号 |
US6541980(B2) |
申请公布日期 |
2003.04.01 |
申请号 |
US20010829732 |
申请日期 |
2001.04.10 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.;TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
MAKI ICHIRO |
分类号 |
G01R31/02;G01R19/165;G01R31/36;(IPC1-7):G01N27/416 |
主分类号 |
G01R31/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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