Phase-locking Control for Piezoelectric Backlight Inverter  

作　　者：Chernlin Chen 

机构地区：[1]Graduate Institute of Electronics Engineering Taiwan University(10617)

出　　处：《电源世界》2007年第2期37-39,14,共4页The World of Power Supply

摘　　要：An approach of phase-locking control for piezoelectric backlight inverter for cold cathode fluorescent lamp (CCFL) is presented. According to the characteristic of piezoelectric transformer (PZT) and CCFL a frequency-sweep control is applied for ignition. Then a phase locking loop is used to control the driving frequency to maintain the optimum operating point of the inverter system.An approach of phase-locking control for piezoelectric hacklight inverter for cold cathode fluorescent lamp （CCFL） is presented. According to the characteristic of piezoelectric transformer （PZT） and CCFL a frequency-sweep control is applied for ignition. Then a phase locking loop is used to control the driving frequency to maintain the optimum operating point of the inverter system.

关 键 词：压电式背光逆变器 琐相控制 冷阴极荧光灯 

分 类 号：TM464[电气工程—电器]