发明名称 |
GROUND DETECTION CIRCUIT FOR A THREE WIRE POWER SUPPLY |
摘要 |
A three wire power supply circuit is provided comprising a circuit for monitoring the integrity of the ground connection of the power supply circuit. A circuit element is provided in the line-to-ground current path which conducts when current flows in the line-to-ground current path and is nonconductive when the ground connection is poor or absent. A microcontroller monitors the output of the circuit element and operates a buzzer or a light emitting diode to indicate when the ground connection is poor or absent.
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申请公布号 |
CA2168710(C) |
申请公布日期 |
2007.07.03 |
申请号 |
CA19962168710 |
申请日期 |
1996.02.02 |
申请人 |
HUBBELL INCORPORATED |
发明人 |
WALTER, MARK RICHARD;ECKEL, DAVID PHILIP;BATKO, THOMAS JAMES |
分类号 |
H02H3/16 |
主分类号 |
H02H3/16 |
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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