直流电机双向可逆控制系统设计

ABSTRACTThis paper introduces the design of the system hardware and software design,and thehardware block diagram and software flow chart and gives some description.According tothe hardware block diagram of the following function modules of STC89C52 chip,thedesign,the L298 full bridge driver chip,the pulse processing,amplification,output tocontrol the speed of motor.Control of the L298 high power H bridge drive DC motor hasto control the speed of the.Through the digital tube display speed grade,also can throughthe button control motor story of inversion,and the motor speed to add and subtract.Thesystem design is reasonable,complete functions,superior performance,good results in theactual production,easy to control,simple and flexible configuration advantages.Keywords:STC89C52:MCU:PWM speed control