本设计以TMS320F28027 DSP为主控制器，以产生占空比可调的PWM波，并采用PID控制调节直流电机的转速，用H桥作为功率驱动电路，使其在给定不同的转速时，电机能跟上转速要求。在电路板中，设置四个按键，来实现电机的启动、停止、正转、反转、加速以及减速的功能。同时，外接虚拟示波器，以显示电机当前的设定转速、实际转速以及电枢电流大小。(The design to TMS320F28027 DSP-based controller to generate a PWM duty cycle adjustable, and the use of PID control to adjust the DC motor speed, with H-bridge as the power drive circuit, so that given a different speed, the motor Can keep up with speed requirements. In the circuit board, set four buttons to achieve the motor start, stop, forward, reverse, acceleration and deceleration functions. At the same time, an external virtual oscilloscope to display the motor current set speed, the actual speed and armature current size.)