摘要
对基于微机控制的双闭环可逆直流PWM调速系统进行了较深入的研究,在硬件方面充分利用微机外设接口丰富,运算速度快的特点,采取软件和硬件相结合的措施,实现对转速、电流双闭环调速系统的控制。该方案以89C52微机为核心,分别采用了82558、253、8279、ADC0809、741914等芯片与一些外围电路。
This paper reserehes on reversible DC-PWM timing system with a dual-converter and dual-closed-loop. In the hardware, it fully utilized the advantage of microcomputer in abundant interface and fast speed to realize the control of the system. This scheme was based on the core of 89C52 single chip, using the chips of 8255/8253/8279/ADC0809/74191 and some peripheral circuits.
出处
《中国测试技术》
2006年第5期110-112,共3页
CHINA MEASUREMENT & TESTING TECHNOLOGY
关键词
直流可逆调速
数字触发
PWM
数字控制器
Reversible DC timing system
Number touch off
Pulse-width modulation
Number controller
