Published:2011/6/15 9:08:00 Author:Michel | Keyword: Automatic Control, Constant CurrentCharging, Cadmium Nickel, Battery Charging Circuit | From:SeekIC
This circuit adopts automatic control,and constant current charging method.The nominal voltage of charged battery is 10V and its end-of-charge voltage is 12V.T2, T3, and related components consistitutes constant current source and the current value is approximate 4.8 V/R1.Diode D1 is set to prevent the battery discharges when AC power goes off or rectifier circuit breaks down.LM311 is comparator outputs low PWL when it reaches setting value fter being charged and T1 saturates and conducts,T2 stops,constant current sources stops working and the charging stops.
LED,D2 brights,D3 is used as source indication when it is charging.
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