Patent ID: 11879931
Assignee: HAMILTON SUNDSTRAND CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A system comprising:
an alternating current (AC) test signal source coupled to a circuit under test, wherein the circuit under test comprising a lightning protection circuit having a threshold voltage, a first filter, and a second filter;
a direct current (DC) voltage supply;
a filtering device coupled between the DC voltage supply and the AC test signal source;
a first capacitor coupled between the AC test signal source and the circuit under test; and
a controller configured to:
operate the DC voltage supply and the AC test signal source to provide a first test signal to the circuit under test, wherein the first test signal includes a first voltage that exceeds the threshold voltage; and
measure a first impedance of the circuit under test responsive to providing the first test signal to the circuit under test, wherein the first impedance corresponds to an impedance of the first filter.