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介绍采用镇流器控制器IR2 159、功率因数控制器MC34 2 62和锁相环MC140 60B单片IC设计的2 50W金卤灯可调光电子镇流器电路组成及工作原理。
This paper introduces the composition and working principle of 2 50W metal halide lamp dimmable electronic ballast designed by ballast controller IR2 159, power factor controller MC34 2 62 and phase - locked loop MC140 60B monolithic IC.