Solum Co., Ltd.

Keun Wook Lee

Byoung Woo Ryu

Heung Gyoon Choi

Sang Kyoo Han

Hong Sun Park

There is provided a single stage forward-flyback converter including a power converting unit switching input power to perform a forward power conversion operation while being switched on and perform a flyback power conversion operation while being switched off, a path providing unit clamping power formed by the forward power conversion operation of the power converting unit and power formed by the flyback power conversion operation thereof to provide power transfer paths, and a controlling unit controlling the power conversion operation of the power converting unit according to a voltage level of the input power.

Single stage forward-flyback converter and power supply apparatus for light emitting diode

A light emitting diode driver includes a power supplying unit receiving an alternating current (AC) power and outputting a transformed power according to a predetermined ratio, a rectifying unit rectifying the output power from the power supplying unit, and a double voltage unit receiving the rectified power from the rectifying unit and generating an output voltage such that the level of the output voltage is variable, and has constant duty and frequency thereof even the variance of the voltage level.

Growing community of inventors

Gyunggi-do, South Korea

Keun Wook Lee