基于STM32的降压型直流开关稳压电源的设计  

Design of Buck DC Switching Power Supply Based on STM32

作　　者：喻琪家 王艳秋[1] YU Qi-jia WANG Yan-qiu(College of Information Technology, Shenyang Institute of Technology, Fushun 113122, Liaoning Province)

机构地区：[1]沈阳工学院信息与控制学院,辽宁抚顺113122

出　　处：《沈阳工程学院学报（自然科学版）》2016年第4期349-352,共4页Journal of Shenyang Institute of Engineering:Natural Science

基　　金：沈阳工学院2015年重点专业建设项目(ZDZY201504);沈阳工学院2015年教育教学改革研究项目(JG201520)

摘　　要：设计了一种基于STM32的低功耗、高效率的降压型直流开关稳压电源。采用TI公司的LM5117同步降压控制器,它内部集成了PWM控制器、高边和低边NMOS驱动器,并且包含了一个高电压偏置稳压器,为PWM控制器和NMOS驱动器提供偏置电源。控制回路核心部件为STM32F103xxx微控制器,它内部包含了丰富的功能模块,利用其自带的ADC对输入的模拟信号进行多通道同步模数转换。经实际运行表明,此开关电源的电压转换效率较高,并具有低成本、高精度、低功率损耗、安全可靠等优点。In this paper,a buck dc switching power supply with lowpower consumption and high efficiency based on STM32 was designed. The buck controller adopts LM5117 synchronous step-down controller made by TI Company,which integrates PWMcontroller,the high side and lowside NMOS drives,and contains a high voltage bias voltage regulator as PWMcontroller and NMOS device bias power supply. The STM32F103 xxx micro-controller with plenty of function modules is chosen as the core of control circuit,and its build-in ADC is utilized to carry out the multi-channel synchronization AD converting of the input analog signal. The practical operation shows that the switch power supply has higher voltage converting efficiency accompanying with lowcost,high precision,lowpower consumption,safe and reliable,etc.

关 键 词：开关稳压电源 降压型 STM32 LM5117 CSD18532KCS MOS 

分 类 号：TN86[电子电信—信息与通信工程]