Battery charging/discharging switching control protective circui

Details Battery charging/discharging switching control protective circui Battery charging/discharging switching control protective circui

1995-05-08

1997-06-10

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 14, 320 29, 320 31, H01M 1046, H02J 704

Patent

active

056379803

ABSTRACT:
A battery charging/discharging switching control protective circuit including a charging discharging loop, a constant current control circuit connected to the input terminal of the charging discharging loop, a microprocessor control circuit, a time series control circuit with its input terminal connected to the microprocessor control circuit and its output terminal connected to the switch of the charging discharging loop and the switches of the constant current control circuit, the time series control circuit being controlled by the microprocessor control circuit to control the transistor of the charging discharging loop in charging or discharging the battery at a constant current value, and to control the switches of the charging discharging loop in turning off the transistor at the beginning or the end of the charging or discharging operation, so as to prevent the occurrence of electric arc, sparks, transient electric current and voltage during the switching of the switches of the charging discharging loop.

REFERENCES:
patent: 5307000 (1994-04-01), Podrazhansky et al.
patent: 5343138 (1994-08-01), Ainsworth

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