一种小功率电子镇流器起动电路的设计

Design of a Starting Circuit Electronic Ballasts for Low Power Metal Halide Lamp

设计了一种小功率电子镇流器起动电路,该起动电路在起动时,能为灯提供足够的起动电压将灯点亮。在稳态时可以使灯工作于低频叠加高频的方波电压,从而避免了声谐振的发生。

A kind of starting circuit for small power electronic ballasts is proposed. It can provide sufficiently high starting voltage for the lamp＇s start. While the lamp is running in the steady-state, it can also make the lamp work at a low frequency square wave voltage and current avoiding acoustic resonance.