BIDIRECTIONAL DC-DC CONCERTER

摘要

The present invention relates to a bidirectional DC-DC converter and, more particularly, to the bidirectional DC-DC converter which provides optimum efficiency and output control regardless of the kind of loads applied to the bidirectional DC-DC converter used for a battery charging device or a system connection use. According to present invention, the bidirectional DC-DC converter operates as the shape of an LLC resonance converter or a dual active band (DAB) converter according to the characteristic of a connected load and the direction of power flow, thereby providing the optimum efficiency and output control regardless of the kind of loads connected to a primary side or a secondary side.