直流电机PWM调速设计及其VHDL实现

Design of PWM Speed Adjusting System of DC Motor with VHDL Language

基于调频调宽的设计思想,设计了一个正、负脉宽可以数控同时又可以改变频率的PWM调速电路,在FPGA实验开发平台上得以实现,实验仿真以及电路测试结果都取得了良好的效果.该设计通用性较好,可用于直流电机、步进电机调速系统设计.

Based on the design thought of adjusting adjusting circuit which can change the width of the frequency of the pulse by digital form control, and the frequency and the width, we have designed the PWM speed negative and the positive pulse at the same time can change the which has been realized in the FPGA experiment platform. The experimental simulation as well as the electric circuit test result have all obtained the good effect. This design versatility is good, may be used in the direct current motor, step-by-steps the electric motorspeed adjusting system design.