Electrical leakage detection circuit

Details Electrical leakage detection circuit Electrical leakage detection circuit

2006-09-05

2006-09-05

Nguyen, Vincent Q. (Department: 2858)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of ground fault indication

Reexamination Certificate

active

07102356

ABSTRACT:
A method is provided for detecting electrical leakage between a power supply and a frame of a vehicle or machine. The disclosed method includes coupling a first capacitor between a frame and a first terminal of a power supply for a predetermined period of time. The current flowing between the frame and the first capacitor is limited to a predetermined current limit. It is determined whether the voltage across the first capacitor exceeds a threshold voltage. A first output signal is provided when the voltage across the capacitor exceeds the threshold voltage.

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Schematic entitled “M80D Logic Board AS.”, Feb. 9, 1989, Arthur Wild.

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