公开(公告)号：US06989701B2

公开(公告)日：2006-01-24

申请号：US10750121

申请日：2003-12-31

Applicant: Jyh Chain Lin ,  Ching Yen Lee

Inventor： Jyh Chain Lin ,  Ching Yen Lee

IPC: H03K3/017

CPC classification number: H04B10/502 ,  H04B10/524

Abstract: A PWM driving apparatus for an LED includes a sawtooth wave generator (1) for generating a sawtooth wave signal, a comparator (2), an FET (3), a first resistor (4), a second resistor (5), a power supply (7), and a light emitting diode array (8). A modulation signal provided by a modulation signal source (6) and the sawtooth wave signal are fed to the comparator, an output of the comparator is connected to a gate terminal of the FET, the power supply is connected to a source terminal of the FET through the first resistor, and a drain tenninal of the FET outputs a driving current through the second resistor to the light emitting diode array.

Abstract translation: 一种用于LED的PWM驱动装置包括用于产生锯齿波信号的锯齿波发生器（1），比较器（2），FET（3），第一电阻器（4），第二电阻器（5） 电源（7）和发光二极管阵列（8）。 由调制信号源（6）提供的调制信号和锯齿波信号被馈送到比较器，比较器的输出端连接到FET的栅极端，电源连接到FET的源极端 通过第一电阻器和FET的漏极输出通过第二电阻器的驱动电流到发光二极管阵列。

公开(公告)号：US07091675B2

公开(公告)日：2006-08-15

申请号：US10750025

申请日：2003-12-31

Applicant: Jyh Chain Lin

Inventor： Jyh Chain Lin

IPC: H05B37/00

CPC classification number: H05B41/3927 ,  H05B41/2824 ,  H05B41/3922

Abstract: A driving apparatus (2) for cold cathode fluorescent lamps (CCFLs) includes a primary and a secondary driving circuits (22, 21), a primary and a secondary light tubes (24, 23), a primary and a secondary feedback circuits (26, 27), and two photosensitive elements (25) corresponding to the primary and the secondary light tubes, respectively. The primary and the secondary driving circuits provide power to drive the primary and the secondary light tubes, respectively. The primary feedback circuit receives photoelectric current of a corresponding photosensitive element and provides an output signal to the primary driving circuit. The secondary feedback circuit receives currents of both photosensitive elements, and provides an output signal to the secondary driving circuit to keep a brightness of the secondary light tube the same as the brightness of the primary light tube.

Abstract translation: 一种用于冷阴极荧光灯（CCFL）的驱动装置（2）包括初级和次级驱动电路（22,21），初级和次级光管（24,23），初级和次级反馈电路（26 ，27）和分别对应于初级和次级光管的两个感光元件（25）。 主驱动电路和次驱动电路分别提供驱动主光源和次光管的功率。 主反馈电路接收对应的光敏元件的光电流，并向主驱动电路提供输出信号。 次级反馈电路接收两个光敏元件的电流，并向次级驱动电路提供输出信号，以保持次级光管的亮度与初级光管的亮度相同。

公开(公告)号：US07195391B2

公开(公告)日：2007-03-27

申请号：US11286121

申请日：2005-11-22

Applicant: Jyh Chain Lin

Inventor： Jyh Chain Lin

IPC: F21V7/04

CPC classification number: G02B6/002 ,  G02B6/0051 ,  G02B6/0053

Abstract: A backlight module (3) includes a light source group (31) and a light guide plate (32). The light source group includes at least a light source, and the light guide plate has a light input surface (321) for receiving light, a light output surface (322) for emitting light, which is adjacent to the light input surface, and a bottom surface opposite to the light output surface and adjacent the light input surface. The light source group faces the light input surface, which is curved such that its curvature matches with the light distribution of the light source group.

Abstract translation: 背光模块（3）包括光源组（31）和导光板（32）。 光源组至少包括光源，并且导光板具有用于接收光的光输入表面（321），用于发射与光输入表面相邻的光的光输出表面（322）和 底表面与光输出表面相对并邻近光输入表面。 光源组面对光输入面，其弯曲，使得其曲率与光源组的光分布一致。

公开(公告)号：US07514971B2

公开(公告)日：2009-04-07

申请号：US10662029

申请日：2003-09-12

Applicant: Jyh Chain Lin

Inventor： Jyh Chain Lin

IPC: H03K4/06

CPC classification number: H05B33/0818

Abstract: The present invention provides a PWM current adjustment apparatus including a triangle wave generator (8) for generating a triangle wave voltage signal, a comparator (9), an FET (10), a power supply (14), a first resistor (11) and a second resistor (12). The triangle wave voltage signal generated by the triangle wave generator and a modulation signal provided by a modulation voltage source (13) are fed to the comparator, an output of the comparator is connected to a gate terminal of the FET, the power supply is connected to a source terminal of the FET through the first resistor, and a drain terminal of the FET outputs a driving current through the second resistor to a load.

Abstract translation: 本发明提供一种PWM电流调节装置，包括用于产生三角波电压信号的三角波发生器（8），比较器（9），FET（10），电源（14），第一电阻器（11） 和第二电阻（12）。 由三角波发生器产生的三角波电压信号和由调制电压源（13）提供的调制信号被馈送到比较器，比较器的输出端连接到FET的栅极端子，电源被连接 通过第一电阻器连接到FET的源极端子，并且FET的漏极端子将通过第二电阻器的驱动电流输出到负载。

公开(公告)号：US07078942B2

公开(公告)日：2006-07-18

申请号：US10805048

申请日：2004-03-18

Applicant: Jyh Chain Lin

Inventor： Jyh Chain Lin

IPC: H03K3/00

CPC classification number: H05B33/0818 ,  H03K7/08 ,  H05B33/0851

Abstract: A current driving apparatus includes a first square wave generator (100), a second square wave generator (200), an FET (Field Effect Transistor) (3), and a power supply (9). The first square wave generator has an output connected to the second square wave generator's input. The second square wave generator has an output connected to the FET gate. A current clamping resistor (11) is provided between the FET source and the power supply. The FET drain provides current to a possible load (not shown). The first square wave generator generates a low frequency square wave signal for timing control, and the second square wave generator generates a high frequency square wave signal for amplitude control.

Abstract translation: 电流驱动装置包括第一方波发生器（100），第二方波发生器（200），FET（场效应晶体管）（3）和电源（9）。 第一方波发生器具有连接到第二方波发生器的输入端的输出端。 第二方波发生器具有连接到FET门的输出。 在FET源和电源之间提供电流钳位电阻（11）。 FET漏极为可能的负载提供电流（未显示）。 第一方波发生器产生用于定时控制的低频方波信号，第二方波发生器产生用于振幅控制的高频方波信号。