公开(公告)号：US20060038508A1

公开(公告)日：2006-02-23

申请号：US10923188

申请日：2004-08-20

Applicant: Yung-Lin Lin ,  Da Liu

Inventor： Yung-Lin Lin ,  Da Liu

IPC: H05B41/16

CPC classification number: H05B41/2813 ,  Y02B20/22

Abstract: The present invention provides a protection means for a driving circuit which drives a set of external electrode fluorescent lamps (EEFL). The driving circuit with protection function for driving a set of EEFLs consistent with the present invention includes: a transformer connected to the set of EEFLs; a switching network connected to the transformer which delivers power to the transformer; a sensing circuit connected to the set of EEFLs which detects disconnection if one light source is disconnected; and a controller connected to the switching network which controls the switching network to reduce the total current supplied to the EEFLs which remain connected, if the sensing circuit detects that one EEFL is disconnected. Appropriate protection can therefore be implemented when the EEFL is disconnected on one end or both ends.

Abstract translation: 本发明提供一种用于驱动一组外部电极荧光灯（EEFL）的驱动电路的保护装置。 具有与本发明一致的用于驱动一组EEFL的保护功能的驱动电路包括：连接到该组EEFL的变压器; 连接到向变压器供电的变压器的开关网络; 连接到一组EEFL的感测电路，如果一个光源断开则检测断开; 以及连接到交换网络的控制器，如果感测电路检测到一个EEFL被断开，则控制交换网络以减少提供给保持连接的EEFL的总电流。 因此，当EEFL在一端或两端断开时，可以实现适当的保护。

公开(公告)号：US06999328B2

公开(公告)日：2006-02-14

申请号：US10919955

申请日：2004-08-17

Applicant: Yung-Lin Lin

Inventor： Yung-Lin Lin

IPC: H02M7/539

CPC classification number: H02M1/36 ,  H02J3/00 ,  H02J5/00 ,  H02M7/53871 ,  H02M7/5395

Abstract: A controller for controlling at least two power circuits comprises a pulse generator and a selector. The pulse generator generates a first pulse signal which is coupled to a first power circuit of the at least two power circuits for initiating the operation of the first power circuit. The first power circuit then outputs a second pulse signal to a second power circuit of the at least two power circuits to initiate the operation of the second power circuit. The selector generates a reference signal which is coupled to each of the at least two power circuits for indicating a number of power circuits controlled. The controller is used to control energy supplying to an electrical circuit comprising multiple inverters and is more particularly to provide phase shifts to the electrical circuit. Usually, the electrical circuit is applied to display devices, such as liquid crystal display monitors, liquid crystal display computers and liquid crystal display televisions.

Abstract translation: 用于控制至少两个电源电路的控制器包括脉冲发生器和选择器。 脉冲发生器产生第一脉冲信号，其耦合到至少两个电源电路的第一电源电路，用于启动第一电源电路的操作。 然后，第一电源电路将第二脉冲信号输出到至少两个电源电路的第二电源电路，以启动第二电源电路的操作。 选择器产生参考信号，该参考信号耦合到至少两个电源电路中的每一个，用于指示受控的多个电源电路。 控制器用于控制向包括多个反相器的电路供电的能量，更具体地说是提供到电路的相移。 通常，将电路应用于液晶显示监视器，液晶显示电脑和液晶显示电视等显示装置。

公开(公告)号：US06570344B2

公开(公告)日：2003-05-27

申请号：US09850692

申请日：2001-05-07

Applicant: Yung-Lin Lin

Inventor： Yung-Lin Lin

IPC: H05B4136

CPC classification number: H02M7/53835 ,  H05B41/2851 ,  Y10S315/05

Abstract: A common ground system and methodology for one or more loads. In exemplary embodiments, a lamp load is regulated by providing a common ground on the secondary side of the transformer and the load. Lamp regulation is provided, in part, via a current feedback loop provided on the secondary side that is commonly grounded between the bottom of the transformer and the bottom of the lamp through the current feedback loop. In this manner, a feedback signal is developed that includes the leakage current of the lamp.

公开(公告)号：US6104146A

公开(公告)日：2000-08-15

申请号：US250779

申请日：1999-02-12

Applicant: John Chou ,  Yung-Lin Lin

Inventor： John Chou ,  Yung-Lin Lin

IPC: H05B41/282 ,  H05B41/16

CPC classification number: H05B41/2824 ,  Y02B20/186

Abstract: The present invention provides a CCFL driving circuit having a parallel-arranged transformer system and a feedback loop positioned to sense the current in one of the lamps in the system. Each CCFL in the system is driven by the secondary side an individual transformer. Based on the current sensed in the feedback loop, a controller supplies the appropriate driving voltage to the primary side of the transformers, which in turn powers each CCFL. Since the primary sides of the transformers are arranged in parallel, and since each CCFL is connected at a common node, it is ensured that each transformer receives identical voltage, and the current in each CCFL loop is balanced.

Abstract translation: 本发明提供了一种CCFL驱动电路，其具有并联布置的变压器系统和反馈回路，其被定位成感测系统中的一个灯中的电流。 系统中的每个CCFL由次级侧驱动单个变压器。 基于在反馈回路中感测的电流，控制器将适当的驱动电压提供给变压器的初级侧，这反过来为每个CCFL供电。 由于变压器的一次侧并排布置，并且由于每个CCFL连接在公共节点处，因此确保每个变压器接收相同的电压，并且每个CCFL回路中的电流是平衡的。

公开(公告)号：US09232591B2

公开(公告)日：2016-01-05

申请号：US13559451

申请日：2012-07-26

Applicant: Ching-Chuan Kuo ,  Yung Lin Lin

Inventor： Ching-Chuan Kuo ,  Yung Lin Lin

IPC: G05F1/00 ,  H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0818 ,  H05B33/0848 ,  Y02B20/347

Abstract: A dimming controller can operate in a first mode or a second mode to control dimming of a light-emitting diode (LED) light source. The dimming controller can include a voltage control terminal and a current control terminal. The voltage control terminal provides a pulse signal when the dimming controller operates in the first mode to operate a control switch in either a first state or a second state. A first current flowing through the LED light source increases when the control switch is in the first state and decreases when the control switch is in the second state. The voltage control terminal provides a control signal to the control switch to cut off the first current when the dimming controller operates in the second mode. The current control terminal conducts a second current through the LED light source when the dimming controller operates in the second mode.

Abstract translation: 调光控制器可以以第一模式或第二模式操作以控制发光二极管（LED）光源的调光。 调光控制器可以包括电压控制端子和电流控制端子。 当调光控制器在第一模式下操作时，电压控制端子提供脉冲信号，以在第一状态或第二状态下操作控制开关。 当控制开关处于第一状态时，流过LED光源的第一电流增加，并且当控制开关处于第二状态时，第一电流减小。 当调光控制器在第二模式下操作时，电压控制端子向控制开关提供控制信号以切断第一电流。 当调光控制器在第二模式下操作时，电流控制端子通过LED光源传导第二电流。

公开(公告)号：US08830159B2

公开(公告)日：2014-09-09

申请号：US12962030

申请日：2010-12-07

Applicant: Da Liu ,  Yung-Lin Lin

Inventor： Da Liu ,  Yung-Lin Lin

IPC: G09G3/36 ,  G09G3/32 ,  G09G3/10 ,  H05B37/00 ,  H05B33/08 ,  G09G3/34

CPC classification number: H05B33/0827 ,  G09G3/3413 ,  G09G3/342 ,  G09G2320/0233 ,  G09G2320/0633 ,  G09G2320/0666 ,  G09G2330/021 ,  H05B33/0815

Abstract: A method according to one embodiment may include supplying power to an LED array having at least a first string of LEDs and a second string of LEDs coupled in parallel, each of the strings includes at least two LEDs. The method of this embodiment may also include comparing a first feedback signal from the first string of LEDs and a second feedback signal from the second string of LEDs. The first feedback signal is proportional to current in said first string of LEDs and said second feedback signal is proportional to current in said second string of LEDs. The method of this embodiment may also include controlling a voltage drop of at least the first string of LEDs to adjust the current of the first string of LEDs relative to the second string of LEDs, based on, at least in part, the comparing of the first and second feedback signals. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment.

Abstract translation: 根据一个实施例的方法可以包括向具有至少第一串LED串的LED阵列供电，并且并联耦合的第二串LED串联，每个串包括至少两个LED。 该实施例的方法还可以包括比较来自第一串LED的第一反馈信号和来自第二LED串的第二反馈信号。 所述第一反馈信号与所述第一串LED中的电流成比例，并且所述第二反馈信号与所述第二LED串中的电流成比例。 该实施例的方法还可以包括：至少部分地基于比较来控制至少第一串LED的电压降，以相对于第二LED串来调节第一串LED的电流 第一和第二反馈信号。 当然，在不偏离本实施例的情况下，可以进行许多替代，变化和修改。

公开(公告)号：US08581517B2

公开(公告)日：2013-11-12

申请号：US12561888

申请日：2009-09-17

Applicant: Ching-Chuan Kuo ,  Yung Lin Lin

Inventor： Ching-Chuan Kuo ,  Yung Lin Lin

IPC: G05F1/00

CPC classification number: H05B33/0818 ,  H02M3/156 ,  H05B33/0845 ,  Y02B20/346

Abstract: A circuit for driving a light source includes a voltage converter, a switch and a controller. The voltage converter converts an AC input voltage signal to a first rectified AC voltage signal. The voltage converter further generates an average signal proportional to an average voltage level of the first rectified AC voltage signal. The switch is coupled to the light source in series. The controller coupled to the voltage converter and the switch compares the first rectified AC voltage signal with the average signal to generate a pulse signal. The controller further generates a dimming control signal based on the pulse signal to control the switch thereby controlling dimming of the light source.

Abstract translation: 用于驱动光源的电路包括电压转换器，开关和控制器。 电压转换器将交流输入电压信号转换为第一整流交流电压信号。 电压转换器还产生与第一整流交流电压信号的平均电压电平成比例的平均信号。 开关串联耦合到光源。 耦合到电压转换器和开关的控制器将第一整流交流电压信号与平均信号进行比较以产生脉冲信号。 控制器还基于脉冲信号产生调光控制信号，以控制开关，从而控制光源的调光。

公开(公告)号：US08564219B2

公开(公告)日：2013-10-22

申请号：US13096646

申请日：2011-04-28

Applicant: Sheng Tai Lee ,  Yung Lin Lin ,  Chuan Chiung Kuo

Inventor： Sheng Tai Lee ,  Yung Lin Lin ,  Chuan Chiung Kuo

IPC: H05B37/02

CPC classification number: H05B33/0812 ,  Y02B20/345 ,  Y02B20/348

Abstract: Embodiments in accordance with the present invention provide circuits and methods for driving a light-emitting diode (LED) light source. In one embodiment, a printed circuit board (PCB) includes a bridge rectifier rectifying an AC voltage to a rectified AC voltage, an LED light source, and a first switch coupled to the LED light source in series controlling a current through the LED light source according to a predetermined current reference. The LED light source and the first switch coupled in series receive the rectified AC voltage while the first switch is controlled linearly. The circuit further includes a current path coupled in parallel with the LED light source and an illuminated switch coupled between the AC power source and the bridge rectifier.

Abstract translation: 根据本发明的实施例提供用于驱动发光二极管（LED）光源的电路和方法。 在一个实施例中，印刷电路板（PCB）包括将AC电压整流到整流的AC电压的桥式整流器，LED光源和耦合到LED光源的第一开关，其串联地控制通过LED光源的电流 根据预定的电流参考。 LED光源和串联耦合的第一开关在第一开关线性控制的同时接收整流的交流电压。 电路还包括与LED光源并联耦合的电流通路和耦合在AC电源和桥式整流器之间的照明开关。

公开(公告)号：US20130193877A1

公开(公告)日：2013-08-01

申请号：US13559451

申请日：2012-07-26

Applicant: Ching-Chuan KUO ,  Yung Lin LIN

Inventor： Ching-Chuan KUO ,  Yung Lin LIN

IPC: H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0818 ,  H05B33/0848 ,  Y02B20/347

Abstract: A dimming controller can operate in a first mode or a second mode to control dimming of a light-emitting diode (LED) light source. The dimming controller can include a voltage control terminal and a current control terminal. The voltage control terminal provides a pulse signal when the dimming controller operates in the first mode to operate a control switch in either a first state or a second state. A first current flowing through the LED light source increases when the control switch is in the first state and decreases when the control switch is in the second state. The voltage control terminal provides a control signal to the control switch to cut off the first current when the dimming controller operates in the second mode. The current control terminal conducts a second current through the LED light source when the dimming controller operates in the second mode.

Abstract translation: 调光控制器可以以第一模式或第二模式操作以控制发光二极管（LED）光源的调光。 调光控制器可以包括电压控制端子和电流控制端子。 当调光控制器在第一模式下操作时，电压控制端子提供脉冲信号，以在第一状态或第二状态下操作控制开关。 当控制开关处于第一状态时，流过LED光源的第一电流增加，并且当控制开关处于第二状态时，第一电流减小。 当调光控制器在第二模式下操作时，电压控制端子向控制开关提供控制信号以切断第一电流。 当调光控制器在第二模式下操作时，电流控制端子通过LED光源传导第二电流。

公开(公告)号：US08232738B2

公开(公告)日：2012-07-31

申请号：US13096646

申请日：2011-04-28

Applicant: Sheng Tai Lee ,  Yung Lin Lin ,  Chuan Chiung Kuo

Inventor： Sheng Tai Lee ,  Yung Lin Lin ,  Chuan Chiung Kuo

IPC: H05B37/02

Abstract: Embodiments in accordance with the present invention provide circuits and methods for driving a light-emitting diode (LED) light source. In one embodiment, a printed circuit board (PCB) includes a bridge rectifier rectifying an AC voltage to a rectified AC voltage, an LED light source, and a first switch coupled to the LED light source in series controlling a current through the LED light source according to a predetermined current reference. The LED light source and the first switch coupled in series receive the rectified AC voltage while the first switch is controlled linearly. The circuit further includes a current path coupled in parallel with the LED light source and an illuminated switch coupled between the AC power source and the bridge rectifier.