Simple charger circuit 7812

Published:2011/7/17 19:37:00 Author:TaoXi | Keyword: Simple, charger | From:SeekIC

General batteries all use the constant current charging mode, so you only need to control the charging time to finish the charging. This battery looks like the NI-MH battery(nickel-metal hydride battery), the capacity is 1450 mA. The standard charging method: you need to charge the battery with the 1/10 current for 14-16 hours. This charger's charging current is 170mA, the charging time is about 12 hours. It is composed of a transformer, a 7812 three-port voltage stabilization IC, four IN4008 diodes, a 2200UF/50V electrolytic capacitor, a 0.1uF non-polarity capacitor, a 56 ohms resistor, a battery box, a circuit board and some wires.



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