【摘要】 本文介绍PAM、PWM复合控制原理和按此原理研制的大功率晶体管宽调速交流调速系统。整个系统由一台8位单板微机控制,软件固化,硬件多功能保护,系统工作可靠。更多还原

【Abstract】 The principle of PAM PWM compound control and the power transistor AC adjustable speed system based on that principle are presented in this paper. This system is controlled by a 8 bits single board microcomputer. With its software solidified and hardware protected in multifunction, the system is capable of working with high reliability.更多还原