一种新型电动自行车充电电路的设计

A new design circuit of electric vehicle

本文是研究电动车铅酸蓄电池充电器的控制模块.在对传统充电器进行研究后,提出了一种简单实用的设计方案。本设计采用三段式充电,以AC/DC谐振式高效变换器组件DBX6001作为开关电源提供直流稳压电压,SG3842控制输出脉宽调制(PWM)的占空比调整而实现不同充电过程、光耦PC817控制SG3842的工作状态,并且具备充满自停与温度调控功能。本设计能精确实现充电过程控制,保护电池,延长电池寿命。

This article is the study of electric vehicle control module of lead-acid battery charger.With the research of the traditional chargers,a simple and practical design is raised.This design uses three steps charge,to AC/DC converter resonant components DBX6001 as an efficient switching power supply to provide DC voltage regulator,SG3842 control the output pulse width modulation（PWM） the duty cycle to achieve different charge adjustment process,Optocoupler PC817 control working state of SG3842,and have function of since stopped and temperature control.The design can achieve precise charging process control,the protection of batteries,extended the life of batteries.