Ground fault detection system
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United States of America Patent
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May 5, 2015
Grant Date -
Oct 4, 2012
app pub date -
Mar 31, 2011
filing date -
Mar 31, 2011
priority date (Note) -
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Abstract
The present application describes, among other things, a ground fault detection system. The system includes an optocoupler, a current sink, and a first voltage source connected in series. The first voltage source can connect to a negative terminal of a battery unit. Upon connection between a positive terminal of the battery unit and a first node at a ground zero reference level, current can flow through the optocoupler and the current sink to cause the optocoupler to output a ground fault detection signal.
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