Indirect thermal sensing system for a battery charger

Details Indirect thermal sensing system for a battery charger Indirect thermal sensing system for a battery charger

1998-12-31

2000-02-01

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Battery or cell charging

With thermal condition detection

324441, 429 62, H02J 700

Patent

active

060207213

ABSTRACT:
A battery charger including a battery temperature monitoring device. The battery temperature monitoring device includes a first thermistor bonded to one of the terminals of the battery charger to provide a temperature signal of the temperature of the terminal, and a second thermistor positioned within the battery charger to provide a temperature signal of the ambient temperature. The temperature signals from both the first and second thermistors are applied to a temperature monitoring circuit that compares the temperature signals to a known discharge rate of an RC circuit. A microprocessor receives output signals from the temperature monitoring circuit and, using an algorithm, determines the actual temperature of the battery.

REFERENCES:
patent: 5874825 (1999-02-01), Brotto

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