Leakage detector for a power supply apparatus for a vehicle

Details Leakage detector for a power supply apparatus for a vehicle Leakage detector for a power supply apparatus for a vehicle

2005-07-05

2008-11-18

Tso, Edward (Department: 2838)

Electricity: battery or capacitor charging or discharging

One cell or battery charges another

Vehicle battery charging

Reexamination Certificate

active

07453232

ABSTRACT:
A leakage detector for a power supply apparatus for a vehicle having a voltage detection circuit that detects voltages of a plurality of battery modules. The voltage detection circuit comprises a multiplexer that switches the battery modules voltages of which are detected in a time sharing manner, and a voltage detection portion that detects the voltages of the battery modules switched by the multiplexer. In the power supply apparatus, a particular point of the battery module is connected to a chassis through a leakage detection resistance, and the voltage detection circuit detects a chassis voltage that is induced between the ends of the leakage detection resistance by switching the multiplexer of the voltage detection circuit to detect a leakage resistance based on the chassis voltage.

REFERENCES:
patent: 2001/0035765 (2001-11-01), Maki
patent: 2003-169401 (2003-06-01), None

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