Lx Semicon Co., Ltd.

Chang Jin Jeong

Young Kook Ahn

Tae Kyu Nam

Jin Su Byeon

Won Suk Jang

Yoon Soo Shin

Xuan Dien Do

According to one embodiment of the present disclosure, there is provided a DC-DC converter including a slope compensation circuit configured to generate a sawtooth-shaped compensation ramp wave to output a slope voltage, a current sensing circuit configured to receive and convert a sensing current to output the converted current, and an adder configured to receive the slope voltage and the sensing current, wherein the adder includes a sensing resistor and a sensing switch, one end of the sensing resistor is connected to the current sensing circuit and the other end of the sensing resistor is connected to the sensing switch and the slope compensation circuit, and one end of the sensing switch is connected to the sensing resistor and the slope compensation circuit and the other end of the sensing switch is connected to the ground.

DC-DC converter for display panel capable of reducing area occupied by voltage-to-current converter

A power supply system for a display apparatus, in which a structure for supplying operating voltages for a display panel is improved, and the power supply system may improve power efficiency by generating operating voltages using a system voltage of a high level.

Power supply system for display apparatus

Growing community of inventors

Daejeon, South Korea

Chang Jin Jeong