基于锁相环技术的晶闸管中频电源启动电路  

An Thyristor Medium-frequency Power Supply Startup Circuit Based on Phase-locked Loop

作　　者：魏志轩[1] 于吉胜[2] 刘会[1] 高秀丽[1] 

机构地区：[1]山东工商学院信息与电子工程学院,山东烟台264005 [2]黑龙江科技学院,哈尔滨150027

出　　处：《煤矿机械》2005年第8期92-94,共3页Coal Mine Machinery

摘　　要：介绍一种新的晶闸管中频电源启动电路。它由压控振荡器产生它激扫频信号,数字锁相环自动跟踪负载谐振信号频率,实现电源的可靠启动。经现场工业应用证明,该电路性能稳定,启动成功率高,有效地解决了其它启动电路的缺陷。A new thyristor medium-frequency power supply startup circuit is introduced in this article. In this circuit,the separate-excitation swept signals are produced by the voltage-controlled oscillator; the digital phase-locked loop can automatically track the frequency of the load signal, thereby to realize the startup reliably. Effectively resolved the limitation of some other startup circuits, this circuit has been proved to have steady performance and high success rate of startup in industrial applications.

关 键 词：晶闸管中频电源 自动扫频启动 锁相环 电路系统 

分 类 号：TM461.4[电气工程—电器]