电子镇流器谐振回路的设计

Design of Resonant Circuit of Electronic Ballast

荧光灯用电子镇流器是一种特殊的电源,其输出恒定大小的高频交流电。由于不同的灯管需要不同大小的高频电流,因此匹配的谐振回路不一样。介绍一种快速设计谐振回路的方法,首先根据荧光灯管所需的工作电流和镇流器的工作频率确定谐振电感的电感量,其次确定谐振电容的容量,最后根据流过谐振电感的电流选取电感所用的磁芯和绕制电感的漆包线。

An electronic ballast for fluorescent lamps is a special power supply that outputs a constant magnitude of high-frequency alternating current.A method to quickly design a resonant circuit is introduced,firstly the inductance of the resonant inductor is determined according to the operating current required by the fluorescent lamp and the operating frequency of the ballast,secondly the capacity of the resonant capacitor is determined,finally the inductance is selected according to the current flowing through the resonant inductor and the magnetic core used and the enameled wire for winding the inductor.