GROUND FAULT INTERRUPT CIRCUIT FOR ELECTRIC VEHICLE
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United States of America Patent
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Issued Date -
May 16, 2013
app pub date -
Oct 14, 2012
filing date -
Apr 14, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
In one implementation, a ground fault interrupt circuit is provided for a utility power connection to an electric vehicle charging unit. The ground fault interrupt circuit may include a gain amplifier having an input connected to be capable of receiving a differential current from a current sensing transformer and a comparator having an input connect to a reference voltage. It includes a rectifier circuit connected between the gain amplifier and the comparator with a charge accumulator circuit coupled between the rectifier and the comparator.
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