POWER TRANSFERRING APPARATUS AND METHOD OF THEREOF COMPRISING NON-CONTACTING RESONANT CONVERTER WITH STEP-DOWN TRANSFORMER FOR REDUCING THE SWITCH LOSS

摘要

A power transforming apparatus and a method is provided to reduce a resonant current flowing in a switch by installing a compulsive transformer in a resonant converter. A power transforming apparatus includes an input unit(200) receiving and rectifying an input power, a resonant converter(300) having a switching unit and a resonant tank, a transformer transferring energy from a primary side of the converter to a secondary side, a control unit(500) controlling switching of the switching unit, and an output unit outputting the power to a load. A compulsive transformer is interposed between the switching unit and the resonant tank to reduce a switch loss.