基于STM8的双向DC-DC变换器设计分析  

Design of Bi-Directional DC-DC Converter Based on STM8 Microcontroller

作　　者：范宜标[1] 邓松超 陈晶晶[1] 李以虎[1] 

机构地区：[1]龙岩学院,福建龙岩364000

出　　处：《龙岩学院学报》2017年第2期13-18,共6页Journal of Longyan University

基　　金：龙岩市科技计划项目(2014LY13);全国大学生创新创业计划项目(201611312001)

摘　　要：设计的双向DC-DC变换器采用STM8单片机产生PWM脉冲信号,经过半桥驱动芯片IR2104控制MOS管,从而控制BUCK/BOOST拓扑电路。单片机内部自带的10位ADC能通过电压电流检测实时反馈电流和电压数值,并由此调整输出的PWM的占空比,形成电流电压闭环控制系统。实验结果表明,该变换器可以提高输出电流、电压的控制精度,具有良好的稳定性。The desired bi-directional DC-DC converter utilizes the PWM pulse signal generated by STM8 mierocontroller, controls the MOS transistor through IC IR2104, and controls the whole BUCK/BOOST circuit as well. The 10 position ADC integrated in the microcontroller may real-time feedback the value of voltage and current through detecting current. As a result, it adjusts output PWM duty ratio as well, and a voltage current closed-loop control system forms. The experiment results show that DC-DC converter can improve output current and voltage control accuracy and features good stability.

关 键 词：双向DC-DC变换器 高效 BUCK/BOOST 闭环控制 

分 类 号：TM912[电气工程—电力电子与电力传动] TM46