GFCI test monitor circuit
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United States of America Patent
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Nov 5, 2019
Grant Date -
Jun 15, 2017
app pub date -
Feb 24, 2017
filing date -
Mar 14, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A circuit interrupting device including a fault detection circuit and an auto-monitoring circuit. The fault detection circuit is configured to detect a fault condition of the circuit interrupting device, and output a fault detection signal in response to detecting the fault condition. Wherein the fault detection signal is configured to place the circuit interrupting device in a tripped condition. The fault detection circuit is further configured to output a pre-trigger signal, wherein the pre-trigger signal is configured to not place the circuit interrupting device in the tripped condition. The auto-monitoring circuit is configured to monitor an auto-monitoring input signal, wherein the value of the auto-monitoring signal is at least partially determined by a value of a pre-trigger signal generated.
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