Differential power detection

Details Differential power detection Differential power detection

2008-10-08

2011-12-06

Nguyen, Vincent Q (Department: 2858)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

For fault location

C324S503000, C324S509000

Reexamination Certificate

active

08072225

ABSTRACT:
A method of determining a differential power condition includes comparing a voltage across a resistor to a first threshold. The voltage across the resistor is proportional to a difference between a first current and a second current. The method also includes comparing a difference between the first current and the second current to a second threshold. A differential power condition is determined in response to the voltage across the resistor exceeding the first threshold, the difference exceeding the second threshold, or both.

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