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介绍了一种可供调压调速异步电机使用的单片微机闭环控制器，叙述的设计方案和措施降低了对硬件的要求以及减少了运行时占用CPU的时间．实验运行表明，该闭环控制器结构简单，运行可靠，可满足高精度调压调速系统的要求．
A kind of single-chip micro-computer closed-loop controller which can be used for regulating the speed and speed induction motor is introduced. The described design scheme and measure reduce the requirement of hardware and reduce the CPU occupation time in operation. Experimental results show that the closed-loop controller has the advantages of simple structure and reliable operation, which can meet the requirements of high-precision voltage regulation and speed regulation system.