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.
作者
喻琪家
王艳秋
YU Qi-jia WANG Yan-qiu(College of Information Technology, Shenyang Institute of Technology, Fushun 113122, Liaoning Province)
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)
