Constant Voltage and Current Charging Circuit of NJM2340

Published:2011/7/16 7:26:00 Author:Michel | Keyword: Constant Voltage and Current, Charging Circuit | From:SeekIC

The above picture is constant voltage and current charging circuit.The input and output voltage of this circuit are 12V and 5.5V/680mA respectively and its conversion rate is 70%.NJM2340 is PWM control type constant voltage and current power supply integrated controller and there are high precision voltage and current control circuit.The dutyfactor of PWM circuit can be regulated to 100% and voltage difference between input and output voltage is very small and the conversion rate is very high.Thus,it can be used when it is low input voltage and the input voltage can be less than 6V.



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