Accurate 12V storage battery automatic charger circuit

Published:2011/7/15 3:24:00 Author:TaoXi | Keyword: Accurate, 12V, storage battery, automatic charger | From:SeekIC

The principle diagram is as shown in figure 4-25, the secondary stage of the transformer is divided into two groups, L1 group is responsible for the charging, the light of LED1 means the rectifier power supply operating is normal. VS1 unidirectional thyristor is 6A, it uses the phase-shifting trigger circuit, you can change the phase angle by adjusting RP1 (change the charging current which flows through the VS1). The VS2 two-way thyristor is the passage-channel switch of the phase shifting trigger circuit. The L2 group is rectified, filted and stabilized to supply power to the IC1 to produce the trigger signal for the VS2, so VS2 is used as the phase shifting trigger circuit of VS1; on the other hand, it supplies to IC2 as the voltage comparator power supply.



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