公开(公告)号：US06936975B2

公开(公告)日：2005-08-30

申请号：US10414374

申请日：2003-04-15

Applicant: Yung-Lin Lin ,  Da Liu

Inventor： Yung-Lin Lin ,  Da Liu

IPC: H05B41/282 ,  H05B41/392 ,  H05B37/00

CPC classification number: H05B41/282 ,  H05B41/2827 ,  H05B41/2828 ,  H05B41/3921 ,  Y02B20/183

Abstract: A power supply system is provided for a multiple lamp LCD panel. In one aspect, the power supply includes a plurality of transformers for driving a plurality of respective CCFLs. The primary sides of each transformer are coupled in series to thereby reduce the stress on each transformer. For LCD panels that include longer CCFLs, a power supply is provided that includes a plurality of transformers for driving a plurality of respective CCFLs. The primary sides of each transformer are coupled in series and each lamp is coupled to two secondary sides of the transformers, thereby reducing the problems associated with longer CCFL tubes. In any of the embodiments, the power supply can be adapted to convert a high voltage DC signal to high voltage AC used to power the lamps.

Abstract translation: 为多灯LCD面板提供电源系统。 一方面，电源包括用于驱动多个相应CCFL的多个变压器。 每个变压器的初级侧串联耦合，从而减小每个变压器的应力。 对于包括较长CCFL的LCD面板，提供了包括用于驱动多个相应CCFL的多个变压器的电源。 每个变压器的主要侧面串联耦合，并且每个灯耦合到变压器的两个次级侧，从而减少与较长CCFL管相关联的问题。 在任何实施例中，电源可以适于将高压DC信号转换成用于为灯供电的高压AC。

公开(公告)号：US20050030776A1

公开(公告)日：2005-02-10

申请号：US10935629

申请日：2004-09-07

Applicant: Yung-Lin Lin

Inventor： Yung-Lin Lin

IPC: H02M7/523 ,  H02M7/5387 ,  H05B41/282 ,  H05B41/285 ,  H05B41/392 ,  H02M3/335

CPC classification number: H05B41/3927 ,  H02M7/523 ,  H02M7/5387 ,  H02M2001/0048 ,  H02M2007/4815 ,  H05B41/2828 ,  H05B41/2855 ,  Y02B20/185 ,  Y02B70/1441 ,  Y02B70/1491

Abstract: A CCFL power converter circuit is provided using a high-efficiency zero-voltage-switching technique that eliminates switching losses associated with the power MOSFETs. An optimal sweeping-frequency technique is used in the CCFL ignition by accounting for the parasitic capacitance in the resonant tank circuit. Additionally, the circuit is self-learning and is adapted to determine the optimum operating frequency for the circuit with a given load. An over-voltage protection circuit can also be provided to ensure that the circuit components are protected in the case of open-lamp condition.

Abstract translation: 使用高效率零电压切换技术提供CCFL功率转换器电路，其消除与功率MOSFET相关的开关损耗。 通过考虑谐振回路中的寄生电容，在CCFL点火中使用最佳的扫频技术。 此外，电路是自学习的，并且适于确定具有给定负载的电路的最佳工作频率。 也可以提供过电压保护电路，以确保在开灯状态下保护电路部件。

公开(公告)号：US20050018456A1

公开(公告)日：2005-01-27

申请号：US10919955

申请日：2004-08-17

Applicant: Yung-Lin Lin

Inventor： Yung-Lin Lin

IPC: H02J3/00 ,  H02J5/00 ,  H02M1/00 ,  H02M1/36 ,  H02M7/5387 ,  H02M7/5395

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：US06804129B2

公开(公告)日：2004-10-12

申请号：US10776417

申请日：2004-02-11

Applicant: Yung-Lin Lin

Inventor： Yung-Lin Lin

IPC: H02M3335

CPC classification number: H05B41/3927 ,  H02M7/523 ,  H02M7/5387 ,  H02M2001/0048 ,  H02M2007/4815 ,  H05B41/2828 ,  H05B41/2855 ,  Y02B20/185 ,  Y02B70/1441 ,  Y02B70/1491

Abstract: A CCFL power converter circuit is provided using a high-efficiency zero-voltage-switching technique that eliminates switching losses associated with the power MOSFETs. An optimal sweeping-frequency technique is used in the CCFL ignition by accounting for the parasitic capacitance in the resonant tank circuit. Additionally, the circuit is self-learning and is adapted to determine the optimum operating frequency for the circuit with a given load. An over-voltage protection circuit can also be provided to ensure that the circuit components are protected in the case of open-lamp condition.

Abstract translation: 使用高效率零电压切换技术提供CCFL功率转换器电路，其消除与功率MOSFET相关的开关损耗。 通过考虑谐振回路中的寄生电容，在CCFL点火中使用最佳的扫频技术。 此外，电路是自学习的，并且适于确定具有给定负载的电路的最佳工作频率。 也可以提供过电压保护电路，以确保在开灯状态下保护电路部件。

公开(公告)号：US06501234B2

公开(公告)日：2002-12-31

申请号：US09757265

申请日：2001-01-09

Applicant: Yung-Lin Lin ,  Yu-Cheng Chang ,  Bingwei Yao

Inventor： Yung-Lin Lin ,  Yu-Cheng Chang ,  Bingwei Yao

IPC: H05B3702

CPC classification number: H02M1/36 ,  H02J1/14 ,  H02M2001/008 ,  H05B41/3927

Abstract: A sequential burst mode regulation system to deliver power to a plurality of loads. In the exemplary embodiments, the system of the present invention generates a plurality of phased pulse width modulated signals from a single pulse width modulated signal, where each of the phased signals regulates power to a respective load. Exemplary circuitry includes a PWM signal generator, and a phase delay array that receives a PWM signal and generates a plurality of phased PWM signals which are used to regulate power to respective loads. A frequency selector circuit can be provided that sets the frequency of the PWM signal using a fixed or variable frequency reference signal.

公开(公告)号：US09030121B2

公开(公告)日：2015-05-12

申请号：US12953353

申请日：2010-11-23

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

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

IPC: H05B37/00 ,  H05B33/08 ,  H05B37/02

CPC classification number: H05B33/0824

Abstract: Embodiments in accordance with the present invention provide circuits and methods for driving light sources, e.g., a light-emitting diode (LED) light source. In one embodiment, a lamp includes a rectifier rectifying an AC voltage to a rectified AC voltage, an LED light source, and a 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 switch coupled in series receive the rectified AC voltage while the switch is controlled linearly.

Abstract translation: 根据本发明的实施例提供了用于驱动光源的电路和方法，例如发光二极管（LED）光源。 在一个实施例中，灯包括整流AC电压到整流AC电压的整流器，LED光源和耦合到LED光源的开关，其根据预定的电流参考串联控制通过LED光源的电流。 LED光源和串联的开关串联接收整流的交流电压，同时开关线性控制。

公开(公告)号：US20130069546A1

公开(公告)日：2013-03-21

申请号：US13424331

申请日：2012-03-19

Applicant: Yung-Lin LIN ,  Ching-Chuan KUO

Inventor： Yung-Lin LIN ,  Ching-Chuan KUO

IPC: H05B37/02

CPC classification number: H05B33/0812 ,  H05B33/0824 ,  Y02B20/343 ,  Y02B20/345

Abstract: A controller controls power to a light source. The light source receives a rectified AC voltage and includes a first plurality of LEDs and a second plurality of LEDs. The controller regulates a current flowing through the first plurality of LEDs to a first predetermined level when the rectified AC voltage is within a first predetermined range. The second plurality of LEDs remain off when the rectified AC voltage is within the first predetermined range.

Abstract translation: 控制器控制光源的电源。 光源接收经整流的交流电压，并包括第一多个LED和第二多个LED。 当整流的AC电压处于第一预定范围内时，控制器将流过第一多个LED的电流调节到第一预定电平。 当整流的AC电压处于第一预定范围内时，第二组LED保持关闭。

公开(公告)号：US20120262079A1

公开(公告)日：2012-10-18

申请号：US13530935

申请日：2012-06-22

Applicant: Yung-Lin LIN ,  Ching-Chuan KUO

Inventor： Yung-Lin LIN ,  Ching-Chuan KUO

IPC: H05B37/02

CPC classification number: H05B33/0815

Abstract: A circuit for powering a light source includes a filter, a transformer, and a controller. The filter receives an input voltage and filters the input voltage to provide a regulated voltage. The transformer converts the regulated voltage to an output voltage to power the light source. The controller generates a driving signal to alternately operate the switch between a first state and a second state. The controller corrects a power factor of the circuit by controlling time durations of the first state and the second state, such that an input current decreases to a predetermined level during the second state and increases from the predetermined level to a peak level proportional to the input voltage during the first state. The controller controls the ratio of time in the first state to time in the second state to adjust an output current flowing through the light source to a target level.

Abstract translation: 用于为光源供电的电路包括滤波器，变压器和控制器。 滤波器接收输入电压并对输入电压进行滤波以提供调节电压。 变压器将调节电压转换为输出电压，为光源供电。 控制器产生驱动信号以在第一状态和第二状态之间交替地操作开关。 控制器通过控制第一状态和第二状态的持续时间来校正电路的功率因数，使得输入电流在第二状态期间降低到预定电平并且从预定电平增加到与输入成比例的峰值电平 在第一状态下的电压。 控制器控制第二状态下的第一状态到时间的时间比，以将流过光源的输出电流调节到目标电平。

公开(公告)号：US20120217878A1

公开(公告)日：2012-08-30

申请号：US13218755

申请日：2011-08-26

Applicant: Yung Lin Lin ,  Sterling Du

Inventor： Yung Lin Lin ,  Sterling Du

IPC: H05B37/02

CPC classification number: H05B33/0815 ,  H05B33/0824

Abstract: In one embodiment, a driving circuit includes an AC/DC converter which converts an AC voltage to a DC voltage and a DC/DC linear regulator which regulates a current through, e.g., an LED light source, according to a first current reference if a monitoring signal indicating the DC voltage is within a predetermined range, and regulates the current according to a second current reference less than the first current reference if the monitoring signal is beyond the predetermined range. In another embodiment, a controller controlling power to an LED light source turns on a first plurality of LEDs and turns off a second plurality of LEDs if a monitoring signal indicative of a DC voltage received by the LED light source is within a predetermined range, and turns on both first and second plurality of LEDs if the monitoring signal is beyond the predetermined range.

Abstract translation: 在一个实施例中，驱动电路包括将AC电压转换为DC电压的AC / DC转换器，以及DC / DC线性调节器，DC调节器通过例如LED光源来调节电流，根据第一电流参考，如果 指示DC电压的监视信号在预定范围内，并且如果监视信号超出预定范围，则根据小于第一电流参考值的第二电流基准来调节电流。 在另一个实施例中，如果指示由LED光源接收到的直流电压的监视信号在预定范围内，控制LED光源的控制器的控制器接通第一多个LED并且关闭第二多个LED，并且 如果监视信号超过预定范围，则打开第一和第二多个LED。

公开(公告)号：US08248439B2

公开(公告)日：2012-08-21

申请号：US13094384

申请日：2011-04-26

Applicant: Kaiping Ran ,  Da Liu ,  Yung Lin Lin

Inventor： Kaiping Ran ,  Da Liu ,  Yung Lin Lin

IPC: G09G5/10 ,  G09G3/00 ,  G09G3/32

CPC classification number: H05B33/0851 ,  G09G3/3406 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2330/06 ,  H05B33/0818 ,  H05B33/0827 ,  Y02B20/346

Abstract: A backlight controller for driving multiple light emitting diode (LED) strings includes feedback circuitry, phase array circuitry, and encoder circuitry. The feedback circuitry generates multiple feedback signals indicative of currents flowing through the LED strings respectively. The encoder circuitry generates a code signal indicative of a total number of operative LED strings among the multiple LED strings based on the feedback signals. The phase array circuitry generates multiple saw tooth signals according to the code signal. A phase shift amount between two adjacent signals of the saw tooth signals is determined by the total number of the operative LED strings. The phase array circuitry compares each of the saw tooth signals with a dimming control signal to generate multiple phase shift signals so as to respectively control the operative LED strings.

Abstract translation: 用于驱动多个发光二极管（LED）串的背光控制器包括反馈电路，相位阵列电路和编码器电路。 反馈电路分别产生指示流过LED串的电流的多个反馈信号。 编码器电路基于反馈信号产生指示多个LED串中的操作LED串的总数的代码信号。 相位阵列电路根据码信号产生多个锯齿信号。 锯齿信号的两个相邻信号之间的相移量由可操作的LED串的总数确定。 相位阵列电路将每个锯齿信号与调光控制信号进行比较以产生多个相移信号，以分别控制工作LED串。