摘要
介绍了一种250W金卤灯电子镇流器,电路由PFC,Buck变换器和全桥逆变器组成为了避免声谐振,全桥逆变器工作在200llz低频方波。
A prototype for 250 W metal halide lamps is introduced. the circuit topology is composed of a PFC. a buck con-verter and a full-bridge inverter. To avoid acoustie resonance, the fulI-bridge mverter is operated at 200Hz. the transtent and steady-state characteristics of metal halide lamps are measured and analyzed.
出处
《电源技术应用》
2003年第8期33-35,共3页
Power Supply Technologles and Applications
关键词
电子镇流器
金属卤化物灯
声谐振
electronte ballast
metal halide lamp
acoustic resonance
