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

Claim 0:
1. An ultra-low leakage test verification circuit for verifying proper operation of a tested circuit, comprising:
an N-channel MOSFET configured for switching ON and OFF the test verification circuit during a power outage; and
a voltage source that provides an input voltage to the N-channel MOSFET from a conserved power supply, wherein a potential at a gate of the N-channel MOSFET is biased to a level greater than an operational voltage of the test verification circuit;
wherein the N-channel MOSFET provides temporary power from the conserved power supply to the test verification circuit upon activation by a user during a power outage; and
wherein the test verification circuit determines whether the tested circuit has been de-energized, remains energized, or there remains inadequate power to complete the test.