Phase-locking Control for Piezoelectric Backlight Inverter

• 作者: Weichuan Su Pochen Lin Chernlin Chen
• 来源期刊: 电源世界
• 学科: 工学
• 关键词: 压电式背光逆变器 琐相控制 冷阴极荧光灯
• 年，卷（期）: 2007,（2）
• 页码范围: 37-39
• 页数: 3页
• 分类号: TM464

摘要

<正>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.