Low cost and high reliability electric bicycle charger circuit

Published:2011/7/18 3:12:00 Author:TaoXi | Keyword: Low cost, high reliability, electric bicycle, charger | From:SeekIC

The MC3842 is designed as one kind of 8-pin single port output other-excited switch power driving integrated circuit, the internal circuit is composed of the benchmark voltage regulator, the error amplifier, the pulse width comparator, the latch, the oscillator, the pulse width modulator, the pulse output driver stage.etc. The MC3842 some similar products, the interchangeable products are UC3842, IR3842N, SG3842, CM3842, LM3842.etc. The The internal block diagram of MC3842 is as shown in figure 1. The single-ended PWM pulse output, the output driving current is 200mA, the peak current can be 1A. The start voltage is more than 16V, the 1mA start current can make the circuit get into the operating state. It has the 5V/50mA reference voltage source.



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