The charger with the simple circuit

Published:2011/7/18 0:57:00 Author:TaoXi | Keyword: charger, simple circuit | From:SeekIC

The charging principle diagram of this charger is as shown in figure 2-3. This charger can charge the no.5 or no.7 single or four nickel cadmium batteries synchronously. The features of this circuit: the subprime stage of the transformer uses the bifilar winding, when the coil A is in the positive half cycle, it charges the GB1, when the coil A is in the negative half cycle, it charges GB3. The charging current has three stages, when the switch is in the 1 stage, it can charge the 1.5V alkaline battery. The VD1-VD4 are the rectifier diode, the model is 1N4001, the VD5-VD8 is the LED charging indicator. The capacity of the transformer T >/=1W, the transformer secondary stage is the bifilar winding, the AC voltage is 4.5V-5V.



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