CIRCUITS AND METHODS FOR DRIVING LIGHT SOURCES
    11.
    发明申请
    CIRCUITS AND METHODS FOR DRIVING LIGHT SOURCES 有权
    用于驱动光源的电路和方法

    公开(公告)号:US20120038292A1

    公开(公告)日:2012-02-16

    申请号:US13028626

    申请日:2011-02-16

    CPC classification number: H05B33/0857 H05B33/0818 Y02B20/346

    Abstract: 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.

    Abstract translation: 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。

    CIRCUITS AND METHODS FOR CONTROLLING DIMMING OF A LIGHT SOURCE
    12.
    发明申请
    CIRCUITS AND METHODS FOR CONTROLLING DIMMING OF A LIGHT SOURCE 有权
    用于控制光源调制的电路和方法

    公开(公告)号:US20110140620A1

    公开(公告)日:2011-06-16

    申请号:US12834672

    申请日:2010-07-12

    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。

    SYSTEMS AND METHODS FOR DRIVING A LIGHT SOURCE
    13.
    发明申请
    SYSTEMS AND METHODS FOR DRIVING A LIGHT SOURCE 失效
    用于驱动光源的系统和方法

    公开(公告)号:US20110062882A1

    公开(公告)日:2011-03-17

    申请号:US12561888

    申请日:2009-09-17

    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。

    DC/AC COLD CATHODE FLUORESCENT LAMP INVERTER
    14.
    发明申请
    DC/AC COLD CATHODE FLUORESCENT LAMP INVERTER 有权
    DC / AC冷阴极荧光灯逆变器

    公开(公告)号:US20080246413A1

    公开(公告)日:2008-10-09

    申请号:US12136597

    申请日:2008-06-10

    Applicant: Yung Lin LIN

    Inventor: Yung Lin LIN

    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。

    DRIVING CIRCUIT WITH DIMMING CONTROLLER FOR DRIVING LIGHT SOURCES
    15.
    发明申请
    DRIVING CIRCUIT WITH DIMMING CONTROLLER FOR DRIVING LIGHT SOURCES 有权
    驱动电路与驱动光源的调光控制器

    公开(公告)号:US20120112650A1

    公开(公告)日:2012-05-10

    申请号:US13323688

    申请日:2011-12-12

    CPC classification number: H05B33/0818 H05B33/0857 Y02B20/346

    Abstract: A controller for controlling dimming of a light-emitting diode (LED) light source includes a switch monitoring pin, a current monitoring pin, and a control pin. The switch monitoring pin monitors an operation of a power switch which transfers an AC voltage to a rectifier when the power switch is on. The current monitoring pin receives a current monitoring signal indicating a current flowing through the LED light source. The control pin generates a control signal to control a second switch coupled in series with the LED light source to adjust the brightness of the LED light source according to the operation of the power switch.

    Abstract translation: 用于控制发光二极管(LED)光源调光的控制器包括开关监控引脚,电流监控引脚和控制引脚。 开关监控引脚监视电源开关的操作,当电源开关接通时,电源开关将AC电压传输到整流器。 电流监视引脚接收指示流经LED光源的电流的电流监视信号。 控制引脚产生控制信号以控制与LED光源串联耦合的第二开关,以根据电源开关的操作调节LED光源的亮度。

    CIRCUITS AND METHODS FOR DRIVING LIGHT SOURCES
    16.
    发明申请
    CIRCUITS AND METHODS FOR DRIVING LIGHT SOURCES 失效
    用于驱动光源的电路和方法

    公开(公告)号:US20110221346A1

    公开(公告)日:2011-09-15

    申请号:US13096646

    申请日:2011-04-28

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

    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 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.

    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,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。

    CONTROLLERS, SYSTEMS AND METHODS FOR CONTROLLING DIMMING OF LIGHT SOURCES
    17.
    发明申请
    CONTROLLERS, SYSTEMS AND METHODS FOR CONTROLLING DIMMING OF LIGHT SOURCES 有权
    用于控制光源调光的控制器,系统和方法

    公开(公告)号:US20110181199A1

    公开(公告)日:2011-07-28

    申请号:US13042349

    申请日:2011-03-07

    CPC classification number: H05B33/0818 H05B33/0851 Y02B20/346

    Abstract: A controller for controlling dimming of an LED light source includes a control terminal and dimming control circuitry coupled to the control terminal. The control terminal provides a driving signal to control a control switch coupled to the LED light source, thereby controlling the dimming of the LED light source. The dimming control circuitry generates the driving signal according to a set of operations of a power switch that transfers an AC signal. The dimming control circuitry further adjusts the driving signal by counting multiple waves of the AC signal to control the dimming of the LED light source.

    Abstract translation: 用于控制LED光源的调光的控制器包括耦合到控制端的控制端和调光控制电路。 控制端子提供驱动信号以控制耦合到LED光源的控制开关,从而控制LED光源的调光。 调光控制电路根据传送AC信号的电源开关的一组操作产生驱动信号。 调光控制电路通过对交流信号的多个波进行计数来调节驱动信号,以控制LED光源的调光。

    CIRCUITS AND METHODS FOR DRIVING LIGHT SOURCES
    18.
    发明申请
    CIRCUITS AND METHODS FOR DRIVING LIGHT SOURCES 有权
    用于驱动光源的电路和方法

    公开(公告)号:US20110109245A1

    公开(公告)日:2011-05-12

    申请号:US12968035

    申请日:2010-12-14

    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。

    PORTABLE LIGHTING DEVICE AND METHOD THEREOF
    19.
    发明申请
    PORTABLE LIGHTING DEVICE AND METHOD THEREOF 失效
    便携式照明设备及其方法

    公开(公告)号:US20100237784A1

    公开(公告)日:2010-09-23

    申请号:US12493420

    申请日:2009-06-29

    CPC classification number: H05B33/0815 H05B33/0824 Y02B20/346

    Abstract: A portable lighting device includes a power source, a controller, and a load. The controller comprises a power input terminal which is electrically connected to the power source via a switch. The load is electrically connected to a power output terminal of the controller and is capable of providing a feedback signal. The controller regulates the power being provided to the load according to the feedback signal and a conduction status of the switch.

    Abstract translation: 便携式照明装置包括电源,控制器和负载。 控制器包括经由开关电连接到电源的电源输入端子。 负载电连接到控制器的电源输出端子,并且能够提供反馈信号。 控制器根据反馈信号和开关的导通状态来调节提供给负载的功率。

    DRIVING CIRCUIT WITH CONTINUOUS DIMMING FUNCTION FOR DRIVING LIGHT SOURCES
    20.
    发明申请
    DRIVING CIRCUIT WITH CONTINUOUS DIMMING FUNCTION FOR DRIVING LIGHT SOURCES 有权
    具有连续驱动光源驱动电路功能的驱动电路

    公开(公告)号:US20100148681A1

    公开(公告)日:2010-06-17

    申请号:US12415028

    申请日:2009-03-31

    CPC classification number: H05B33/0818 H05B33/0857 Y02B20/346

    Abstract: A driving circuit for controlling power of a light source includes a power converter coupled to a power source and the light source, and a dimming controller coupled to the power converter. The power converter can receive power from the power source and provide a regulated power to the light source. The power converter includes a control switch coupled in series with the light source. The dimming controller can monitor a power switch coupled between the power source and the driving circuit, and receive a dimming request signal and a dimming termination signal. The dimming request signal can indicate a first set of operations of the power switch. The dimming termination signal can indicate a second set of operations of the power switch. The dimming controller can continuously adjust the regulated power from the power converter by controlling the control switch if the dimming request signal is received, and can stop adjusting the regulated power from the power converter if the dimming termination signal is received.

    Abstract translation: 用于控制光源的功率的驱动电路包括耦合到电源和光源的功率转换器以及耦合到功率转换器的调光控制器。 功率转换器可以从电源接收电力并向光源提供稳定的电力。 功率转换器包括与光源串联耦合的控制开关。 调光控制器可以监视耦合在电源和驱动电路之间的电源开关,并且接收调光请求信号和调光终止信号。 调光请求信号可以指示电源开关的第一组操作。 调光终止信号可以指示电源开关的第二组操作。 如果接收到调光请求信号,调光控制器可以通过控制控制开关来连续调节功率转换器的调节功率,如果接收到调光终端信号,则可以停止调节来自功率转换器的稳压电源。

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