Driving circuit with dimming controller for driving light sources
    1.
    发明授权
    Driving circuit with dimming controller for driving light sources 有权
    带调光控制器驱动光源的驱动电路

    公开(公告)号:US08482219B2

    公开(公告)日:2013-07-09

    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 controlling dimming of a light source
    2.
    发明授权
    Circuits and methods for controlling dimming of a light source 有权
    用于控制光源调光的电路和方法

    公开(公告)号:US08305013B2

    公开(公告)日:2012-11-06

    申请号:US13366127

    申请日:2012-02-03

    CPC classification number: H05B37/0263 H05B33/0845

    Abstract: 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.

    Abstract translation: 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。

    Circuits and methods for driving light sources
    3.
    发明授权
    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:US08330388B2

    公开(公告)日:2012-12-11

    申请号:US12783260

    申请日:2010-05-19

    CPC classification number: H05B33/0851 H05B33/0818 H05B33/0848

    Abstract: 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.

    Abstract translation: 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。

    Differential driving circuit for powering a light source
    4.
    发明授权
    Differential driving circuit for powering a light source 失效
    用于为光源供电的差动驱动电路

    公开(公告)号:US08237371B2

    公开(公告)日:2012-08-07

    申请号:US12915807

    申请日:2010-10-29

    CPC classification number: H02M3/158 H05B33/0815 Y10T307/625

    Abstract: 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.

    Abstract translation: 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。

    Differential driving circuit for powering a light source

    公开(公告)号:US08148910B2

    公开(公告)日:2012-04-03

    申请号:US12915807

    申请日:2010-10-29

    Abstract: 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.

    Systems and methods for driving a light source

    公开(公告)号:US08228004B2

    公开(公告)日:2012-07-24

    申请号:US12561888

    申请日:2009-09-17

    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.

    Circuits and methods for controlling dimming of a light source
    7.
    发明授权
    Circuits and methods for controlling dimming of a light source 有权
    用于控制光源调光的电路和方法

    公开(公告)号:US08111017B2

    公开(公告)日:2012-02-07

    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。

    Driving circuit with dimming controller for driving light sources
    8.
    发明申请
    Driving circuit with dimming controller for driving light sources 有权
    带调光控制器驱动光源的驱动电路

    公开(公告)号:US20100148691A1

    公开(公告)日:2010-06-17

    申请号:US12316480

    申请日:2008-12-12

    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。

    Controllers, systems and methods for controlling dimming of light sources
    9.
    发明授权
    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:US08508150B2

    公开(公告)日:2013-08-13

    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。

    Driving circuit with dimming controller for driving light sources
    10.
    发明授权
    Driving circuit with dimming controller for driving light sources 有权
    带调光控制器驱动光源的驱动电路

    公开(公告)号:US08378589B2

    公开(公告)日:2013-02-19

    申请号:US13117795

    申请日:2011-05-27

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

    Abstract: A dimming controller for controlling dimming of a light-emitting diode (LED) light source includes a monitoring terminal and a control terminal. The monitoring terminal receives a switch monitoring signal indicative of an operation of a power switch which transfers power from an AC power source to a bridge rectifier when the power switch is on. A power converter receives input power from the bridge rectifier and provides output power to the LED light source. The control terminal generates a control signal to adjust the output power according to the switch monitoring signal so as to control dimming of the LED light source.

    Abstract translation: 用于控制发光二极管(LED)光源的调光的调光控制器包括监视终端和控制终端。 当电源开关接通时,监控终端接收指示电力开关操作的开关监视信号,该功率开关从AC电源向桥式整流器传送电能。 功率转换器从桥式整流器接收输入功率并向LED光源提供输出功率。 控制端产生控制信号,根据开关监视信号调节输出功率,以控制LED光源的调光。

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