The phase lock loop is a feedback control system that makes two telecommunication signals' phase synchronization, suitable to the synchronoustrigger circuit of the convertor device.
锁相环路是完成两个电信号相位同步的反馈控制系统，适宜于变流装置的同步触发电路之中。
2
Due to its active probe heads including a trigger output for protocol-synchronous recording at the oscilloscope reactionless measuring under operating conditions of your plant can be executed.
通过带有触发与协议同步的波形输出到记录仪的激活探头，人们可以测量运行中的设备。用户可以获得用于。
3
Brief principles of microcomputer trigger in rectifying system and the influence from synchronous method on system were introduced.