公开(公告)号：US20120126710A1

公开(公告)日：2012-05-24

申请号：US12953353

申请日：2010-11-23

申请人： Yung Lin LIN ,  Ching Chuan KUO ,  Sheng Tai LEE

发明人： Yung Lin LIN ,  Ching Chuan KUO ,  Sheng Tai LEE

IPC分类号： H05B37/02 ,  H05B37/00

CPC分类号： H05B33/0824

摘要： 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.

摘要翻译： 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：US20120268023A1

公开(公告)日：2012-10-25

申请号：US13535561

申请日：2012-06-28

申请人： Tiesheng YAN ,  Ching-Chuan KUO ,  Yung Lin LIN

发明人： Tiesheng YAN ,  Ching-Chuan KUO ,  Yung Lin LIN

IPC分类号： H05B37/02

CPC分类号： H05B33/0815

摘要： A driving circuit for driving a light-emitting diode (LED) light source includes a buck-boost converter and a controller. The buck-boost converter receives an input voltage and an input current and powers the LED light source, and comprises a switch controlled by a driving signal. The controller receives a first signal indicating a current through the LED light source, and generates the driving signal based on the first signal to control the switch and to adjust the current through the LED light source. The buck-boost converter further comprises a current sensor which provides a second signal indicating an instant current flowing through the buck-boost converter, wherein the first signal is derived from the second signal, and wherein a reference ground of the controller is different from a ground of the driving circuit.

摘要翻译： 用于驱动发光二极管（LED）光源的驱动电路包括降压 - 升压转换器和控制器。 降压 - 升压转换器接收输入电压和输入电流并为LED光源供电，并包括由驱动信号控制的开关。 控制器接收指示通过LED光源的电流的第一信号，并且基于第一信号产生驱动信号，以控制开关并调节通过LED光源的电流。 所述降压 - 升压转换器还包括电流传感器，其提供指示流过所述降压 - 升压转换器的即时电流的第二信号，其中所述第一信号从所述第二信号导出，并且其中所述控制器的参考地不同于 地面的驱动电路。

公开(公告)号：US20110227496A1

公开(公告)日：2011-09-22

申请号：US13100434

申请日：2011-05-04

申请人： Yung Lin LIN ,  Ching Chuan KUO ,  Tiesheng YAN ,  Xinhe SU

发明人： Yung Lin LIN ,  Ching Chuan KUO ,  Tiesheng YAN ,  Xinhe SU

IPC分类号： H05B37/02 ,  H05B41/16

CPC分类号： H05B33/0845 ,  H05B33/0818 ,  Y02B20/348

摘要： A controller for controlling dimming of a light-emitting diode (LED) light source provides a pulse signal by comparing a sensing signal indicative of a current flowing through the LED light source to a reference signal. The controller controls the current through the LED light source according to the pulse signal during a first state of a pulse-width modulation signal and cutting off the current through the LED light source during a second state of the pulse-width modulation signal. The controller receives a dimming request signal indicative of an operation of a power switch coupled between an AC power source and a bridge rectifier and adjusts both a level of the reference signal and a duty cycle of the pulse-width modulation signal based on the dimming request signal.

摘要翻译： 用于控制发光二极管（LED）光源的调光的控制器通过将表示流过LED光源的电流的感测信号与参考信号进行比较来提供脉冲信号。 在脉冲宽度调制信号的第一状态期间，控制器根据脉冲信号控制通过LED光源的电流，并且在脉冲宽度调制信号的第二状态期间切断通过LED光源的电流。 控制器接收指示耦合在AC电源和桥式整流器之间的功率开关的操作的调光请求信号，并且基于调光请求调节参考信号的电平和脉宽调制信号的占空比 信号。

公开(公告)号：US20100219766A1

公开(公告)日：2010-09-02

申请号：US12783260

申请日：2010-05-19

申请人： Ching-Chuan KUO ,  Yung Lin LIN

发明人： Ching-Chuan KUO ,  Yung Lin LIN

IPC分类号： H05B37/02

CPC分类号： H05B33/0851 ,  H05B33/0818 ,  H05B33/0848

摘要： A dimming controller for controlling power of a light source has a monitoring terminal, a dimming terminal, and a control terminal. The monitoring terminal is operable for receiving a current monitoring signal indicating a current flowing through the light source. The dimming terminal is operable for receiving a ramp signal. The voltage of the ramp signal increases if a power switch coupled between a power source and the light source is turned on. The control terminal is operable for providing a control signal to control a control switch coupled in series with the light source based on the current monitoring signal and the ramp signal. An average current of the light source increases as the ramp signal increases until the average current reaches a predetermined level.

摘要翻译： 用于控制光源功率的调光控制器具有监视终端，调光终端和控制终端。 监视终端可操作用于接收指示流过光源的电流的电流监视信号。 调光终端可操作以接收斜坡信号。 如果连接在电源和光源之间的电源开关导通，斜坡信号的电压就会增加。 控制端子可操作用于提供控制信号，以基于电流监视信号和斜坡信号来控制与光源串联耦合的控制开关。 随着斜坡信号的增加，光源的平均电流增加，直到平均电流达到预定的水平。

公开(公告)号：US20130193877A1

公开(公告)日：2013-08-01

申请号：US13559451

申请日：2012-07-26

申请人： Ching-Chuan KUO ,  Yung Lin LIN

发明人： Ching-Chuan KUO ,  Yung Lin LIN

IPC分类号： H05B33/08

CPC分类号： H05B33/0815 ,  H05B33/0818 ,  H05B33/0848 ,  Y02B20/347

摘要： 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.

摘要翻译： 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：US20120169243A1

公开(公告)日：2012-07-05

申请号：US13366127

申请日：2012-02-03

申请人： Yung Lin LIN ,  Ching-Chuan KUO

发明人： Yung Lin LIN ,  Ching-Chuan KUO

IPC分类号： H05B37/02

CPC分类号： H05B37/0263 ,  H05B33/0845

摘要： A controller that monitors a rectified voltage and detects whether the rectified voltage comes from a TRIAC dimmer or an on/off switch dimmer is disclosed. The controller controls dimming of a light source according to the rectified voltage if the rectified voltage comes from the TRIAC dimmer. The controller controls dimming of the light source according to an operation of the on/off switch dimmer if the rectified voltage comes from the on/off switch dimmer.

摘要翻译： 公开了一种监视整流电压并检测整流电压是来自TRIAC调光器还是开/关开关调光器的控制器。 如果整流电压来自TRIAC调光器，则控制器根据整流电压控制光源的调光。 如果整流电压来自开/关开关调光器，则控制器根据开/关开关调光器的操作来控制光源的调光。

公开(公告)号：US20110140619A1

公开(公告)日：2011-06-16

申请号：US12915807

申请日：2010-10-29

申请人： Yung Lin LIN ,  Ching-Chuan KUO

发明人： Yung Lin LIN ,  Ching-Chuan KUO

IPC分类号： H05B37/02 ,  H02J9/00

CPC分类号： H02M3/158 ,  H05B33/0815 ,  Y10T307/625

摘要： A differential driving circuit for powering a light source is disclosed. The differential driving circuit includes a first set of switches and a second set of switches. A first current from a power source flows through the first set of switches to charge a first energy storage element when the first set of switches are turned on. A second current from the first energy storage element flows through the second set of switches to power the light source when the second set of switches are turned on. The differential driving circuit further includes a second energy storage element coupled to the light source in parallel and for providing a differential voltage to the light source.

摘要翻译： 公开了一种用于为光源供电的差分驱动电路。 差分驱动电路包括第一组开关和第二组开关。 当第一组开关接通时，来自电源的第一电流流过第一组开关以对第一能量存储元件充电。 来自第一能量存储元件的第二电流流过第二组开关以在第二组开关接通时为光源供电。 差分驱动电路还包括并联耦合到光源并用于向光源提供差分电压的第二能量存储元件。

公开(公告)号：US20120038292A1

公开(公告)日：2012-02-16

申请号：US13028626

申请日：2011-02-16

申请人： Ching-Chuan KUO ,  Yung Lin LIN

发明人： Ching-Chuan KUO ,  Yung Lin LIN

IPC分类号： H05B37/02

CPC分类号： H05B33/0857 ,  H05B33/0818 ,  Y02B20/346

摘要： A driving circuit for driving a light source includes a converter and a dimming controller. The converter coupled to a power source is operable for receiving power from the power source and for providing regulated power to the light source according to control signals. The dimming controller coupled to the converter is operable for monitoring a power switch coupled between the power source and the converter, for receiving a color change signal indicating a first set of operations of the power switch and a dimming request signal indicating a second set of operations of the power switch, for controlling the control signals to change the color of the light source in response to the color change signal, and for controlling the control signals to adjust the brightness of the light source in response to the dimming request signal.

摘要翻译： 用于驱动光源的驱动电路包括转换器和调光控制器。 耦合到电源的转换器可操作用于从电源接收功率，并根据控制信号向光源提供稳定的功率。 耦合到转换器的调光控制器可操作用于监视耦合在电源和转换器之间的功率开关，用于接收指示电源开关的第一组操作的变色信号和指示第二组操作的调光请求信号 的电源开关，用于响应于颜色变化信号控制控制信号来改变光源的颜色，并且用于响应于调光请求信号控制控制信号来调节光源的亮度。

公开(公告)号：US20110140620A1

公开(公告)日：2011-06-16

申请号：US12834672

申请日：2010-07-12

申请人： Yung Lin LIN ,  Ching-Chuan KUO

发明人： Yung Lin LIN ,  Ching-Chuan KUO

IPC分类号： H05B37/02

CPC分类号： H05B37/0263 ,  H05B33/0845

摘要： 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.

摘要翻译： 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：US20110062882A1

公开(公告)日：2011-03-17

申请号：US12561888

申请日：2009-09-17

申请人： Ching-Chuan KUO ,  Yung Lin LIN

发明人： Ching-Chuan KUO ,  Yung Lin LIN

IPC分类号： H05B41/36 ,  H05B37/02

CPC分类号： H05B33/0818 ,  H02M3/156 ,  H05B33/0845 ,  Y02B20/346

摘要： 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.

摘要翻译： 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。