摘要
本文在简单介绍PWM调速原理和专用芯片SG2731的基础上,设计了应用SG2731专用芯片实现的直流电动机调速系统,并指出了某些资料的错误叙述。
This paper briefly describes the principle of PWM speed control and SG2731 chip,and designed DC motor speed control system based on the chip SG2731,and pointed out the error description of certain information.
出处
《机床电器》
2010年第6期56-57,共2页
Machine Tool Electric Apparatus