AC- DC SINGLE STAGE INTERLEAVED SWITCHING AC-DC CONVERTER

摘要

The present technique discloses a single-stage interleaved switching AC-DC converter. According to a specific example of the present invention, a single-stage interleaved switching ac-dc converter can reduce efficiency and cost of a charging device by integrally controlling a power factor, battery charging, and an electric current based on a single interleaved PFC circuit, improve density and durability of power by using a film capacitor instead of a conventional electrolytic capacitor, reduce switching loss due to small ripple, and reduce the volume of a filter unit. In addition, low-frequency component of a transformer can be eliminated so that a magnetizing current can be designed to be small, volume can be reduced, and high power can be charged depending on the number of windings of the transformer.