摘要
HV9931是利用单级PFC Buck Boost-buck拓扑控制高亮度LED串设计的固定频率PWM控制器IC。重点介绍了基于HV9931的单级PFC LED灯驱动器电路工作原理及设计方法。
The HV9931 is a fixed frequency PWM controller IC designed to control strings of high-bright LEDs. The working principle and the design method of single-stage PFC LED lamp driving circuit based on HV9931 are introduced.
出处
《电源技术应用》
2006年第9期28-32,共5页
Power Supply Technologles and Applications
