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本文论述了一种新型高效节能双管荧光灯镇流器的结构和原理,推求了该镇流器电参数的估算公式,提供了30W及40W双管荧光灯采用该镇流器和采用两个通用的电感式镇流器时的对比实验数据,结果表明:在荧光灯光输出相同的前提下,采用该镇流器不仅接入电路的功率因数高,可减少输入电流50%;而且可减少输入有功功率,30W及40W双灯节能镇流器,在额定电压下,可减少输入有功分别为7W和5W左右。电路总体可节约有功20%,节约无功80%。
This paper discusses the structure and principle of a new type of high-efficiency and energy-saving double-tube fluorescent lamp ballast. The formula for estimating the ballast’s electrical parameters is deduced, and the 30W and 40W dual-tube fluorescent lamps are provided using this ballast and two common ones. Compared with experimental data of inductive ballast, the results show that under the premise of the same fluorescent light output, the ballast not only has high power factor of the access circuit, but also can reduce the input current by 50%; and it can reduce the input active power. , 30W and 40W dual-lamp energy-saving ballast, under the rated voltage, can reduce the input active power respectively about 7W and 5W. The overall circuit can save 20% of active power and save 80% of reactive power.