摘要
本文首先介绍LED的电参数和特性,说明对驱动LED的要求,接着介绍一些LED驱动芯片的工作原理和具体的应用电路。
This article describes the electrical parameters and characteristics of LED at first, and then presents the operating principles of several constant current LED driving ICs and their operation circuits.
出处
《中国照明电器》
2010年第4期17-22,共6页
China Light & Lighting
关键词
恒流驱动
脉宽调制
脉频调制
隔离电源
待机功耗
constant current driving
pulse width modulation
pulse frequency modulation
isolated power supply
stand-by power consumption
