Samsung Electro-mechanics Co., Ltd.

Dea Min Jang

Jin Wook Kim

Dong Seong Oh

Jae Sun Won

Jong Hae Kim

Sang Kyoo Han

Sung Soo Hong

Chung Wook Roh

Sung Woo Kim

Jong Sun Kim

Jong Duck Kim

Kwang Seung Cho

Sug Chin Sakong

Il Woon Lee

Jin Woo Cho

Erlan Dzhunusbekov

Dmitry Berdnikov

A power supply having a maximum power point tracking function that controls power switching so that a detected power value is within a reference range having a maximum power point in a predetermined current-voltage curve includes: a converter section switching input power and converting the switched input power into predetermined DC power; and a maximum power point tracking section detecting a power value determined according to a switching operation of the converter section among power values included in a predetermined power-voltage curve, and controlling the switching operation of the converter section so that the detected power value is located within a predetermined reference range having a maximum power value among the power values included in the power-voltage curve.

Power supply having maximum power point tracking function

In accordance with the present invention, a power converter transformer for suppressing conduction EMI (ElectroMagnetic Interference) includes a primary winding positioned at a primary side; a secondary winding positioned at a second side and coupled with the primary winding; a parasitic capacitor connected between one end of the primary winding and one end of the secondary winding; a switching unit connected to the other end of the primary winding; a Y-capacitor connected between the switching unit and a ground terminal; an auxiliary winding positioned at the secondary side and coupled with the secondary winding; and an auxiliary capacitor connected between the one end of the primary winding and the auxiliary winding.

Power converter transformer for suppressing conduction EMI and power supply having its transformer

There is provided a backlight driving system for a liquid crystal display that can reduce size and weight of a product because a DC-DC converter is not used when commercial AC power is converted into lamp driving power. A backlight driving system for a liquid crystal display according to an aspect of the invention includes a power supply unit converting commercial alternating current (AC) power into direct current (DC) power having a voltage level set beforehand, an inverter unit converting the DC power from the power supply unit into AC power at a one-to-one conversion ratio set beforehand, a boosting unit boosting the AC power from the inverter unit into lamp lighting power set beforehand; and a lamp group receiving the lamp lighting power from the boosting unit to emit light.

Backlight driving system for liquid crystal display

Growing community of inventors

Gyunggi-do, South Korea

Dea Min Jang