NICAD_CHARGER_3

Published:2009/6/29 22:59:00 Author:May | From:SeekIC

Regulated charger circuit will handle variable load from 1 to 18 nicad cells. Current-limiting action holds charging current within 1 to 2 mA of optimum value (about one-tenth of rated ampere-hour capacity) from 0 to 24 V. Q1 should have power rating equal to twice supply voltage mu ltiplied by current-limit value, lf charging 450-mAh penlight cells, charge current is 45 mA and transistor should be 2W.-A. G. Evans, Regulated Nicad Charger, 73 Magazine, June 1977, p 117.



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