BIDIRECTIONAL HIGH-FREQUENCY RESONATOR AND BIDIRECTIONAL TRANSFORMER USING SAME

摘要

A bidirectional high-frequency resonator and a bidirectional transformer using the same are disclosed. The disclosed bidirectional transformer comprises: a bidirectional high-frequency transformer for converting between a first high-voltage AC which is inputted and outputted through a first input and output port and a rectified voltage which is inputted and outputted through a second input and output port; a bidirectional AC/DC converter for converting between the rectified voltage which is inputted and outputted through the first input and output port and a DC voltage which is inputted and outputted through the second input and output port; and a bidirectional DC/AC converter for converting between the DC voltage which is inputted and outputted through the first input and output port and a second low-voltage AC which is inputted and outputted through the second input and output port, wherein the bidirectional high-frequency transformer includes N(an integer of 2 or higher) resonant converters which are connected in serial, and each of the N resonant converter includes: a transformer; a first resonance circuit connected to a core at one side of the transformer and having a plurality of switching elements which are connected in serial; and a second resonance circuit connected to a core at the other side of the transformer and having a plurality of switching elements which are connected in serial.