Battery charger with high sensitivity

Details Battery charger with high sensitivity Battery charger with high sensitivity

1995-04-07

1995-09-26

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 22, H02J 710

Patent

active

054536774

ABSTRACT:
A battery charger includes a battery voltage detecting circuit for detecting a voltage of a battery during a charging operation. The battery voltage detecting circuit includes a pair of a first and a second voltage-dividing resistor. A transistor is interposed between the first and second voltage-dividing resistors. A predetermined voltage is applied to the base of the transistor, so that the battery voltage is detected based on the voltage divided by the first and second voltage-dividing resistors.

REFERENCES:
patent: 3912108 (1975-10-01), Clayton et al.
patent: 3921051 (1975-11-01), Ballman
patent: 4006396 (1977-02-01), Bogut
patent: 5264777 (1993-11-01), Smead
patent: 5420493 (1995-05-01), Hargadon et al.

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