公开(公告)号：US20110141085A1

公开(公告)日：2011-06-16

申请号：US12771002

申请日：2010-04-30

申请人： Yu Jin JANG ,  Jin Soo LEE ,  Jeong Mo YANG ,  Jeong In CHEON

发明人： Yu Jin JANG ,  Jin Soo LEE ,  Jeong Mo YANG ,  Jeong In CHEON

IPC分类号： G09G5/00

CPC分类号： H05B41/2858 ,  G09G3/3406 ,  G09G2330/026 ,  H05B41/382 ,  Y02B20/204

摘要： Provided is an initial driving circuit of a backlight unit having a lamp unit provided with a plurality of lamps. In the initial driving circuit, an error amplifying unit 100 detects an error voltage VERO between a feedback voltage VFB corresponding to a current flowing to the lamp unit and a preset first reference voltage Vref11. A soft signal generation unit 200 generates a soft start signal VSS of the lamp unit. A high-frequency signal driving signal generating unit 300 generates a high-frequency driving signal VHF of the of the lamp unit. A high-frequency driving termination determining unit 400 generates a high-frequency driving termination signal SHE when the error voltage VERO is equal in voltage level to the soft start signal VSS. A high-frequency driving signal blocking unit 500 blocks the high-frequency driving signal VHF in advance when the high-frequency driving termination signal SHE is inputted.

摘要翻译： 提供了具有设置有多个灯的灯单元的背光单元的初始驱动电路。 在初始驱动电路中，误差放大单元100检测对应于流向灯单元的电流的反馈电压VFB与预设的第一参考电压Vref11之间的误差电压VERO。 软信号生成单元200生成灯单元的软启动信号VSS。 高频信号驱动信号生成单元300生成灯单元的高频驱动信号VHF。 高频驱动终止确定单元400当软电启动信号VSS的电压电平相等时，产生高频驱动终止信号SHE。 当输入高频驱动终止信号SHE时，高频驱动信号阻断单元500预先阻挡高频驱动信号VHF。

公开(公告)号：US20120146530A1

公开(公告)日：2012-06-14

申请号：US13117691

申请日：2011-05-27

申请人： Dae Hoon HAN ,  Jeong In CHEON ,  Jae Shin LEE

发明人： Dae Hoon HAN ,  Jeong In CHEON ,  Jae Shin LEE

IPC分类号： H05B37/02

CPC分类号： H05B33/0815 ,  Y02B20/346

摘要： The present, invention relates to a light emitting diode driver that integrates a light emitting diode control function and a power switching control function at a secondary side insulated from a primary side in a power supply circuit, without using a photo coupler to control power switching at the primary side.

摘要翻译： 本发明涉及一种发光二极管驱动器，其在电源电路中将与发光二极管控制功能和功率切换控制功能集成在与初级侧绝缘的次级侧，而不使用光耦合器来控制功率切换 主要方面。

公开(公告)号：US20080164925A1

公开(公告)日：2008-07-10

申请号：US11971199

申请日：2008-01-08

申请人： Jeong In CHEON ,  Byoung Own Min ,  Chang Woo Ha

发明人： Jeong In CHEON ,  Byoung Own Min ,  Chang Woo Ha

IPC分类号： H03K3/017

CPC分类号： H03K4/502

摘要： There is a provided a dual mode clock generator that is applicable to a direct current-direct current converter of a power supply. The dual mode clock generator includes a frequency controller for controlling generation of charge and discharge; a current source unit for generating a charge, and generating a charge; a capacitor for charging a voltage according to the charge current generated by the current source unit; an oscillation controller for controlling switch-on or switch-off to charge and discharge the capacitor; a switch for controlling the charging and discharging of the capacitor through the ON or OFF control of the oscillation controller; and a current sink unit for generating a discharge current according to the second current in the first operation mode and generating a discharge current according to the third current and the fourth current in the second operation mode.

摘要翻译： 提供了一种适用于电源的直流电流转换器的双模式时钟发生器。 双模式时钟发生器包括用于控制充放电的产生的频率控制器; 用于产生电荷并产生电荷的电流源单元; 电容器，用于根据由电流源单元产生的充电电流对电压进行充电; 用于控制开关或关断以对电容器充电和放电的振荡控制器; 用于通过振荡控制器的ON或OFF控制来控制电容器的充电和放电的开关; 以及电流吸收单元，用于根据第一操作模式中的第二电流产生放电电流，并且在第二操作模式中根据第三电流和第四电流产生放电电流。