[content]

1 Introduction

2 composition and working principle of the system

Hardware design and composition of the system

4 system debugging

[Abstract]

With the development of the times, motor speed regulation technology has been popularized in our life, work and other fields. This paper will introduce a DC motor, and explain the design method of realizing motor speed regulation with different duty ratio given by the output port of single chip microcomputer. This paper focuses on the unique advantages of L298 in motor drive. Practical significance of DC motor governor. This paper gives the design scheme, working principle, basic composition and main components of DC motor, and further explains the characteristics of this speed regulation mode. The schematic diagram of the circuit is drawn by Protel software. This paper discusses the problems existing in the current research work, looks forward to its development direction, and gives some personal views.