Hon Hai Precision Industry Co., Ltd.

Chen-An Chiang

Yi-Cheng Liu

Chih-Chan Ger

Wen-Lin Chen

A-Jung Chang

Hui-Chen Chou

A driving device for driving a lamp (L) includes a power stage circuit (), a transformer circuit (), a voltage dividing circuit (), an inrush current sensing circuit (), and a controller circuit (). The power stage circuit converts a received direct current (DC) signal to an alternating current (AC) signal. The transformer circuit is connected to the power stage circuit, for converting the AC signal to an appropriate signal to drive the lamp. The voltage dividing circuit is connected to the transformer circuit, for dividing voltage of the signal output from the transformer circuit. The inrush current sensing circuit is connected to the voltage dividing circuit, for sensing inrush current output from the transformer circuit. The controller circuit is connected to the power stage circuit, for controlling output of the power stage circuit according to output of the inrush current sensing circuit.

Device for driving light sources

A power supply system for powering backlight lamps in a flat panel display with reduced dimensions and increased power efficiency. The power supply system includes a converter circuit for converting an alternating current (AC) signal from an AC power source to a high direct current (DC) signal, and a high voltage (HV) inverter system that includes a power stage circuit, a transformer circuit, and a current balance circuit. The HV inverter system is coupled to the converter circuit and specifically configured to convert the high DC signal into an AC output signal to power the backlight lamps.

Growing community of inventors

Taipei Hsien, Taiwan

Chen-An Chiang