一、镇流器在照明电路中的作用随着照明技术的发展，气体放电灯以其光效高、寿命长、光色较好、节能效果显著等特点获得照明界的普遍重视。近几年来，绿色照明风靡全球，气体放电灯是其首选产品。但气体放电灯的放电正柱具有负的伏一安特性，放电工作不稳定，特别是当电源电压 First, the role of ballast in the lighting circuit With the development of lighting technology, gas discharge lamp with its high luminous efficiency, long life, good light color, energy-saving effect and other characteristics of the lighting industry has been generally valued. In recent years, green lighting swept the world, gas discharge lamp is the product of choice. But the discharge of gas discharge lamp positive column has a negative volt ampere characteristics, the discharge is unstable, especially when the supply voltage