公开(公告)号：US07881084B2

公开(公告)日：2011-02-01

申请号：US12136597

申请日：2008-06-10

Applicant: Yung Lin Lin

Inventor： Yung Lin Lin

IPC: H02M3/24

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 DC/AC cold cathode fluorescent lamp (CCFL) inverter circuit includes a transformer with a primary winding and a secondary winding for providing increased voltage to a CCFL, a first and second MOSFET switches for selectively allowing direct current of a first polarity and a second polarity to flow through the transformer respectively. The primary and secondary windings of the transformer are electrically coupled to ground. A capacitor divider is electrically coupled to the CCFL for providing a first voltage signal representing a voltage across the CCFL. A first feedback signal line receives the first voltage signal. A timer circuit is coupled to the first feedback signal line for providing a time-out sequence of a predetermined duration when the first voltage signal exceeds a predetermined threshold. A protection circuit shuts down the first switch and the second switch when the first voltage signal exceeds the predetermined threshold after the predetermined duration.

Abstract translation: DC / AC冷阴极荧光灯（CCFL）逆变器电路包括具有初级绕组的变压器和用于向CCFL提供增加的电压的次级绕组，用于选择性地允许第一极性的直流电流的第一和第二MOSFET开关，以及第二极性 极性分别流过变压器。 变压器的初级和次级绕组电耦合到地。 电容分压器电耦合到CCFL，用于提供表示跨越CCFL的电压的第一电压信号。 第一反馈信号线接收第一电压信号。 当第一电压信号超过预定阈值时，定时器电路耦合到第一反馈信号线，用于提供预定持续时间的超时序列。 当第一电压信号在预定的持续时间之后超过预定阈值时，保护电路关闭第一开关和第二开关。

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：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：US08228004B2

公开(公告)日：2012-07-24

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

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.

公开(公告)号：US08111017B2

公开(公告)日：2012-02-07

申请号：US12834672

申请日：2010-07-12

Applicant: Yung Lin Lin ,  Ching-Chuan Kuo

Inventor： Yung Lin Lin ,  Ching-Chuan Kuo

IPC: G05F1/00

CPC classification number: H05B37/0263 ,  H05B33/0845

Abstract: A controller for controlling dimming of a light source includes a detection pin, an input signal pin, and a monitoring pin. The detection pin is operable for monitoring a rectified voltage and for detecting whether the rectified voltage comes from a TRIAC dimmer or an on/off switch dimmer. The input signal pin is operable for receiving an input signal indicative of the rectified voltage and the controller controls dimming of the light source according to the input signal if the rectified voltage comes from a TRIAC dimmer. The monitoring pin is operable for receiving a monitoring signal indicating an operation of the on/off switch dimmer and the controller controls dimming of the light source according to the monitoring signal if the rectified voltage comes from an on/off switch dimmer.

Abstract translation: 用于控制光源调光的控制器包括检测引脚，输入信号引脚和监视引脚。 检测引脚可用于监控整流电压，并检测整流电压是否来自TRIAC调光器或开/关开关调光器。 输入信号引脚可操作用于接收指示整流电压的输入信号，如果整流电压来自TRIAC调光器，则控制器根据输入信号控制光源的调光。 监视引脚可操作用于接收指示开/关开关调光器的操作的监视信号，并且如果整流电压来自开/关开关调光器，则控制器根据监控信号控制光源的调光。

公开(公告)号：US20100148691A1

公开(公告)日：2010-06-17

申请号：US12316480

申请日：2008-12-12

Applicant: Ching-Chuan Kuo ,  Yung Lin Lin

Inventor： Ching-Chuan Kuo ,  Yung Lin Lin

IPC: H05B41/36

CPC classification number: H05B33/0815 ,  Y02B20/346 ,  Y02B20/348

Abstract: There is provided a driving circuit for controlling power of a light source. The driving circuit includes a power converter and a dimming controller. The power converter is coupled between a power source and the light source, and can receive power from the power source and provide a regulated power to the light source. The dimming controller is coupled to the power converter, and can receive a switch monitoring signal. The switch monitoring signal can indicate an operation of a power switch coupled between the power source and the driving circuit. The dimming controller is further operable for adjusting the regulated power from the power converter by controlling a switch coupled in series with the light source according to the switch monitoring signal.

Abstract translation: 提供了用于控制光源的功率的驱动电路。 驱动电路包括功率转换器和调光控制器。 功率转换器耦合在电源和光源之间，并且可以从电源接收电力并向光源提供稳定的电力。 调光控制器耦合到功率转换器，并且可以接收开关监视信号。 开关监视信号可以指示耦合在电源和驱动电路之间的电源开关的操作。 调光控制器还可操作用于通过根据开关监视信号控制与光源串联耦合的开关来调节来自功率转换器的调节功率。