A voltage regulating electronic transformer with high power factor and wide working voltage

Abstract

An electronic transformer using IR2155 has the advantages of simple structure, high output power, large current conduction angle and stable work, but it has no regulating function. When the alternating voltage range is from 180 to 250 V, output voltage also changes, so its use is limited. This paper presents the integration of APFC rectifying mode into an electronic transformer. This electronic transformer can work over a wide voltage range from 180 to 250 V; it can stabilize output voltage and has a high power factor, high output voltage, and requires only simple maintenance as well.