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Charger for Motor Vehicle Storage Battery (the 6th)

2016-05-10 12:01  
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Work of the circuit The circuit consists of main charging circuit and controlling circuit. (It is showed in picture 7-151.) Turn on the power switch S. The 220V AC is reduced by T and rectified by UR. It then produces 24V pulse DC voltage. The voltage is added to the collectors of V2 and V3. V3 outputs 20V DC voltage to work as the changing voltage of GB. Change the value of RP to change the working current of V1-V3. In that way we can change the charging current.