CAJ | 학술논문

该文采用AVR16单片机，编写程序实现了软件PWM（脉宽调制）控制智能H桥芯片LMD18200驱动高速直流电机，自制了专用测速片，用普通光耦PC817采集高速的速度信号，通过A/D转换及处理电路，实现了LED液晶屏数字显示转速方案。该小儿心室辅助装置的专用驱动器目前已在实验室试用，具有较高的性价比和广泛的应用前景。
해문채용AVR16단편궤，편사정서실현료연건PWM（맥관조제）공제지능H교심편LMD18200구동고속직류전궤，자제료전용측속편，용보통광우PC817채집고속적속도신호，통과A/D전환급처리전로，실현료LED액정병수자현시전속방안。해소인심실보조장치적전용구동기목전이재실험실시용，구유교고적성개비화엄범적응용전경。
This paper uses AVR16 SCM, programming to achieve the software of PWM (pulse width modulation) control of intel igent H bridge chip LMD18200 driver of high speed DC motor, makes special speed tablet, obtains speed signal of high speed for photocoupler PC817, through the A/D conversion and processing circuit, and realizes the LED LCD digital display speed scheme. The driver for the pediatric ventricular assist device has been used at the laboratory trial, has high performance and wide application prospect.