Korea Institute of Energy Research

Seashung Oh

Yujin Song

Suyong Chae

Sukin Park

ILoun Lee

Yoondong Sung

Hakguen Jeong

Subin Han

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

Disclosed is a technology related to an apparatus for controlling or analyzing a power converting module, and more particularly, to a technology for improving imbalance of power quantities processed by a plurality of power converting modules. Relative power quantities processed by the modules are detected through a common circuit element installed in an input terminal or an output terminal shared by the plurality of modules, without detecting information acquired through current or voltage sensors individually installed in respective modules, and control values of the respective modules may be compensated for through the detected relative power quantities or may be output in a form where a user can easily identify them.

Apparatus and method for controlling a plurality of power converting modules and apparatus and method for analyzing power quantity imbalance

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Daejeon, South Korea

Seashung Oh