Pulse express charger circuit diagram

Published:2011/9/7 7:02:00 Author:Vicky | Keyword: pulse, express charger | From:SeekIC

Pulse express charger circuit is shown in the above picture. This nickel-cadmium battery charger can reduce undesirable polarization and prolong the lifetime of battery. In the circuit, 555 are connected and form astable vibrator, which is uses as clock with frequency of about 500Hz. The astable vibrator controls decimal counter CD4017 to output square wave pulse. It then conducts high-current pulse charging and discharging with a proportion of 5:1 to the nickel-cadmium battery after amplified by power tube. There are intermittent pauses during the charging and discharging. During the pauses,check the voltage of the battery by the calculating amplifier. When the battery is full charged, the circuit automatically stops charging.



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