A control system based on TMS320F240 was designed. PWM control mode was adopted to control output power and output characteristic of the machine.
设计了以TMS320F 240为核心的控制系统，为了控制焊机的输出功率和焊机的输出外特性，设计采用了脉宽调制型控制方式。
This paper presents a PWM scheme based on digital memory mode and discusses its asymmetric regular sampling principle and simple on -line algorithm.
提出一种基于数字存储模式的PWM调制方案，讨论其非对称规则采样原理，给出宜于在线运算的简便算法。
PWM mode was analyzed, and a kind of variable-resistance timing Winch being of simple structure and large power supply was put forward by using wire-wound motor and series resistance timing principle.
分析了PWM的调整方式，利用绕线式电机和串电阻调速的原理，提出了一种结构简单、功率强的变阻调速绞车。
应用推荐