高频焊管锁相电路设计

Phase Lock Circuit Design for High-frequency Welded(HFW) Pipe

对锁相电路、高频焊管电路以及锁相环的基本原理做了详细的论述,并对高频焊管生产线上的锁相电路的设计及其在高频焊管机组中的使用、调整以及维护进行了详细分析。实践证明,锁相环具有频率自动跟踪和相位自动控制的功能,对于频率1MHz以下,用CD4046锁相环作为高频焊管锁相电路非常实用,电路简单,抗干扰,运行可靠,足以保证高频焊管电源可靠工作。

In this article, it expatiated the phase lock circuit, HFW pipe circuit and the basic principle of phase-locked loop,and detailedly analyzed design, application, adjustment and maintenance of phase lock in HFW pipe production line. Practice proved that the phase-locked loop possesses functions of frequency automatic tracking and phase automatic control. For frequencies below 1 MHz, using phase-locked loop CD4046 as phase locked circuit for HFW pipe is very practical, the circuit is simple, anti-interference, reliable operation, and it is enough to guarantee the high frequency welded pipe reliable work.