公开(公告)号：US08519941B2

公开(公告)日：2013-08-27

申请号：US12771002

申请日：2010-04-30

Applicant: Yu Jin Jang ,  Jin Soo Lee ,  Mo Jeong Yang ,  In Jeong Cheon

Inventor： Yu Jin Jang ,  Jin Soo Lee ,  Mo Jeong Yang ,  In Jeong Cheon

IPC: G09G3/36

CPC classification number: H05B41/2858 ,  G09G3/3406 ,  G09G2330/026 ,  H05B41/382 ,  Y02B20/204

Abstract: An apparatus for driving a backlight unit including a lamp unit including a plurality of lamps includes an error amplifying unit configured to detect an error voltage between a feedback voltage corresponding to a current flowing to the lamp unit and a preset first reference voltage, a soft signal generation unit configured to generate a soft start signal of the lamp unit, a high-frequency signal driving signal generating unit configured to generate a high-frequency driving signal of the of the lamp unit, a high-frequency driving termination determining unit configured to generate a high-frequency driving termination signal when the error voltage is equal in voltage level to the soft start signal, and a high-frequency driving signal blocking unit configured to block the high-frequency driving signal in advance when the high-frequency driving termination signal is inputted.

Abstract translation: 一种用于驱动包括包括多个灯的灯单元的背光单元的装置，包括：误差放大单元，被配置为检测对应于流向灯单元的电流的反馈电压与预设的第一参考电压之间的误差电压;软信号 生成单元，其被配置为生成所述灯单元的软启动信号;高频信号驱动信号生成单元，被配置为生成所述灯单元的高频驱动信号;高频驱动终止确定单元，被配置为生成 当所述误差电压与所述软启动信号的电压电平相等时的高频驱动终止信号;以及高频驱动信号阻挡单元，被配置为当所述高频驱动终止信号 被输入。