Patent ID: 11885837
Assignee: AUTOMATIC TIMING & CONTROLS, INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 12:
13. A system that facilitates verifying operation of a tested circuit during a power outage, comprising:
an ultra-low leakage test verification circuit for verifying proper operation of a shock hazard warning circuit;
an N-channel MOSFET configured for switching ON and OFF the test verification circuit during said power outage;
a voltage source that provides an input voltage to the N-channel MOSFET; and
a tested shock hazard warning circuit that is diagnosed by the test verification circuit upon activation of the test verification circuit by a user during said power outage;
wherein the N-channel MOSFET includes a gate biased to a potential level greater than an operational voltage of the test verification circuit and the N-channel MOSFET provides temporary power from a conserved power supply to the test verification circuit upon activation by the user; and
wherein the test verification circuit verifies whether the tested circuit has been de-energized.