Design and implementation of multifunctional charger

Abstract

This page proposed a mufti-functional charger which used MCU AT89S52 as the core, mainly by constant voltage-constant current module, voltage detection module, the benchmark voltage source module. The charger can output 3 V, 4.5 V, 6 V, and can be on 4 section battery charging at the same time. The charger has overvoltage protection function, power off automatically when the battery voltage is greater than 1.4 V. The system has very high use value with the advantages of simple design.