发明名称 |
Methods and apparatus to manage ground fault conditions with a single coil |
摘要 |
A ground fault detection device includes a sense coil including a primary winding and a secondary winding to detect current in a line conductor and a neutral conductor. It also includes a capacitor in parallel with the secondary winding and a virtual inductor to form a resonance circuit having a signal proportional to the current and being indicative of a ground fault condition.
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申请公布号 |
US7973535(B2) |
申请公布日期 |
2011.07.05 |
申请号 |
US20100908684 |
申请日期 |
2010.10.20 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
LEWINSKI ARTUR J.;TEGGATZ ROSS;COSBY THOMAS E. |
分类号 |
G01R31/02 |
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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