锁相环数字调速系统

Speed Regulation System by Digital Phase-Locked Loop

锁相环数字调速系统，由数字比较器、压控振荡器、低通滤波器、晶闸管整流电源等环节构成．该系统不但能有效地提高系统的调速精度和调速范围，而且工作可靠，调节方便，适应面广．

The digital Phase-locked loop for speed regulation is made up of digital comparator,voltage-controlled oscillator,low pass filter,thyristor power amplifier and other components.This system not only efficaciously raises the precision of speed regulation and is reliable in works convenient in regulation as well. Therefore it has extensive scope of application and is worth being popularized.