在电力电子技术发展迅猛的今天，越来越多的科技产品已经渗透进我们的日常生

Today, with the rapid development of power electronics technology, more and more technological products have penetrated into our daily life. As a widely used energy conversion device, DC motor has attracted the attention of many researchers. This paper introduces a double closed-loop speed regulation system of DC motor based on STM32F103, and expounds the design method of controlling the rotation of DC motor by using the single-chip computer to output square wave with different duty ratio. The hardware part of the design is composed of driving circuit, protection circuit, LCD display and other parts. The design of the software part is written on the Keil platform using C language.

In today's rapid development of power electronics technology, more and more technology products have penetrated into our daily life, and DC motor as a widely used energy converter piece, has attracted the attention of many researchers. This paper introduces a DC motor dual-closed-loop speed control system based on STM32F103, and elaborates the design method to control the rotation of DC motor by using the single-chip output duty cycle of different square waves. The design hardware part is composed of the driving circuit, the protection circuit, the LCD display and so on, and the design of the software part is written in The C language on the Keil platform.

With the rapid development of power electronics technology, more and more technology products have penetrated into our daily life. As a widely used energy converter, DC motor has attracted the attention of many researchers. This paper introduces a double closed-loop speed control system of DC motor based on STM32F103, and expounds the design method of using SCM to output square wave with different duty cycle to control the rotation of DC motor. The hardware part of the design is composed of drive circuit, protection circuit, LCD display and other parts. The software part is written in C language on keil platform.<br>