Korea Institute of Energy Research

ILoun Lee

Yujin Song

Sukin Park

Su Yong Chae

Gyu Duk Kim

Suyong Chae

Sea Seung Oh

Seung Weon Yu

Yoon Dong Sung

Seashung Oh

Su Bin Han

Yoondong Sung

The present disclosure provides a charging system including: at least two charging devices including at least two output units configured to supply connected automobiles with charging power, a first bus electrically connected to the output units and configured to transfer charging power to the output units, and a power processing unit configured to process power, which is supplied from a power source, using a first capacity and supply the first bus with the processed power; and a second bus configured to connect a first bus of a first charging device and a first bus of a second charging device, wherein, when a total capacity of charging power supplied to automobiles connected to the first charging device exceeds the first capacity, a part or all of lacking capacity is supplied via the second bus.

Power-sharing charging system, charging device, and method for controlling the same

Disclosed is a hybrid dc-dc converter. The hybrid dc-dc converter includes: a pair of transformers configured to magnetically couple a primary side to a secondary side, a full-bridge converter including four switches constituting a full-bridge inverter circuit and a first transformer, and an LLC resonant converter including a resonant inductor, a resonant capacitor, and a second transformer, which constitute an LLC resonant circuit, wherein an output of the full-bridge converter and an output of the LLC resonant converter are connected to each other in series at the secondary side.

Hybrid DC-DC converter with LLC converter and full-bridge converter

Growing community of inventors

Daejeon, South Korea

ILoun Lee