Multipurpose charging cirucit

Published:2011/4/13 4:10:00 Author:Nicole | Keyword: multipurpose charging | From:SeekIC

This circuit not only can charge to Ni-Cd battery and dry battery after used by large current, but also can used in general low voltage DC power supply. The circuit consists of charging part and DC output part. K2 is fast or slow charging selection switch, R2, R3 is limiting resistance, it can change the charging current. Normally, the fast charging is about 4h and slow charging is about 14h. AN, ZD form testing circuit. Before charging,it shouldfix the stay rechargeable battery. When pressed AN, ZD is without light or has low light level, it is normal; When the charging time meets requirement, and press AN, after ZD emitting more than 10s, it means full, it can be used by the electrical equipments.



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