Solum Co., Ltd.

Samsung Electronics Co., Ltd.

Atum Co., Ltd.

Sang-keun Ji

Dong-kyun Ryu

Sang-kyoo Han

Heung-gyoon Choi

Cheol-wan Park

Eun Sik Kim

Yong-Woo Kim

Chung-Wook Roh

Jun Kyu Lee

Sung-soo Hong

Sang-Kyoo Han

Hyo-hun Kim

Jung Soo Lee

Taeksoo Han

Hyun-su Gu

Changyong Kwon

Heung-Gyoon Choi

A transformer includes: an upper primary substrate () which is formed by stacking a plurality of dielectric substrates, each substrate being provided with spiral conductive patterns; a lower secondary substrate () which is formed by stacking a plurality of dielectric substrates, each substrate being provided with spiral conductive patterns, in which the lower secondary substrate is positioned below the upper primary substrate () in such a way that the lower secondary substrate comes into contact with the upper primary substrate () or is spaced apart from the upper primary substrate (); and a secondary coil element () of a planar shape to produce an induced current by a current applied to the upper primary substrate () and the lower primary substrate ().

Transformer

A transformer and an LLC resonant converter are provided. The transformer includes first and second cores configured to include a pair of outer foots and a middle foot positioned between the outer foots, and to induce a magnetic field formation; first and second inductor winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the first core, and to be connected in series with each other; and first and second transformer winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the second core, wherein the pair of outer foots of the first core face the pair of outer foots of the second core, the middle foot of the first core faces the middle foot of the second core, and the first core and the second core are disposed to be spaced apart from each other.

Transformer and LLC resonant converter having the same

An LLC resonant converter and an electronic device are provided. The LLC resonant converter according to the present disclosure includes a multi input transformer, first and second converter units connected to a primary side of the multi input transformer, an input voltage part, a first balance capacitor, and an output part connected to a secondary side of the multi input transformer.

LLC resonant converter and electronic device

A power control method for tracking a Maximum Power Point (MPP) in a photovoltaic system including a solar cell and a boost converter. The power control method includes finding the MPP by applying a continuous ON/OFF signal to the boost converter as a first control signal for controlling a duty ratio of the boost converter, and maintaining an operating point of the photovoltaic system at the MPP by applying a second control signal for controlling the duty ratio to the boost converter depending on a constant-voltage command. In tracking an MPP in a photovoltaic system, an MPPT algorithm may remain at the MPP, without self oscillation, improving fast dynamic characteristics upon a change in solar radiation.

Power control method and apparatus for tracking maximum power point in a photovoltaic system

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Seoul, South Korea

Sang-keun Ji