SYSTEMS AND METHODS FOR DRIVING A LIGHT SOURCE
    11.
    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。

    DRIVING CIRCUIT WITH DIMMING CONTROLLER FOR DRIVING LIGHT SOURCES
    12.
    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。

    DRIVING CIRCUIT WITH CONTINUOUS DIMMING FUNCTION FOR DRIVING LIGHT SOURCES
    13.
    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。

    CIRCUITS AND METHODS FOR DRIVING LED LIGHT SOURCES
    14.
    发明申请
    CIRCUITS AND METHODS FOR DRIVING LED LIGHT SOURCES 有权
    驱动LED光源的电路和方法

    公开(公告)号:US20130038227A1

    公开(公告)日:2013-02-14

    申请号:US13369620

    申请日:2012-02-09

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

    Abstract: A driving circuit for controlling power of a light-emitting diode (LED) light source includes a transformer, a switch controller, and a dimming controller. The transformer has a primary winding that receives input power from an AC/DC converter and a secondary winding that provides output power to the LED light source. The switch controller coupled between an optical coupler and the primary winding receives a feedback signal indicative of a target level of a current flowing through the LED light source from the optical coupler, and controls input power to the primary winding according to the feedback signal. The dimming controller coupled to the secondary winding receives a switch monitoring signal indicative of an operation of a power switch coupled between an AC power source and the AC/DC converter, and regulates the output power by adjusting the feedback signal according to the switch monitoring signal.

    Abstract translation: 用于控制发光二极管(LED)光源的功率的驱动电路包括变压器,开关控制器和调光控制器。 变压器具有从AC / DC转换器接收输入功率的初级绕组和向LED光源提供输出功率的次级绕组。 耦合在光耦合器和初级绕组之间的开关控制器接收表示从光耦合器流过LED光源的电流的目标电平的反馈信号,并且根据反馈信号控制到初级绕组的输入功率。 耦合到次级绕组的调光控制器接收指示耦合在AC电源和AC / DC转换器之间的功率开关的操作的开关监视信号,并且通过根据开关监视信号调整反馈信号来调节输出功率 。

    CIRCUITS AND METHODS FOR CONTROLLING POWER OF LIGHT SOURCES
    15.
    发明申请
    CIRCUITS AND METHODS FOR CONTROLLING POWER OF LIGHT SOURCES 失效
    用于控制光源功率的电路和方法

    公开(公告)号:US20110140616A1

    公开(公告)日:2011-06-16

    申请号:US12823269

    申请日:2010-06-25

    CPC classification number: H05B33/0815 H05B33/0821 H05B33/0842 Y02B20/347

    Abstract: A driving circuit for driving a light source includes a power converter, a controller and a voltage-controlled current source. The power converter is coupled to the light source, and receives an input voltage from a power source and provides an output voltage to the light source. The power converter includes a switch coupled in series with the light source. The controller is coupled to the power converter and controls a power of the light source by controlling the switch. The voltage-controlled current source is coupled to the controller and provides a first current. The controller controls the switch based on the first current.

    Abstract translation: 用于驱动光源的驱动电路包括功率转换器,控制器和压控电流源。 功率转换器耦合到光源,并且从电源接收输入电压并向光源提供输出电压。 功率转换器包括与光源串联耦合的开关。 控制器耦合到功率转换器,并通过控制开关来控制光源的功率。 电压控制电流源耦合到控制器并提供第一电流。 控制器根据第一个电流控制开关。

    CIRCUITS AND METHODS FOR DRIVING LIGHT SOURCES
    16.
    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:US20110080119A1

    公开(公告)日:2011-04-07

    申请号:US12967933

    申请日:2010-12-14

    CPC classification number: H05B33/0815

    Abstract: A circuit for driving a light source, e.g., an LED light source, includes a converter, a sensor, and a controller. The converter converts an input voltage to an output voltage across the LED light source based upon a driving signal. A duty cycle of the driving signal determines an average current flowing through the LED light source. The sensor is selectively coupled to and decoupled from the converter based upon the driving signal. The sensor generates a sense voltage indicative of a current flowing through the LED light source when the sensor is coupled to the converter. The controller is coupled to the converter and sensor. The controller compares the sense voltage to a reference voltage indicative of a predetermined average current through the LED light source to generate a compensation signal and generates the driving signal based upon the compensation signal. The duty cycle of the driving signal is adjusted based upon the compensation signal to adjust the average current flowing through the LED light source to the predetermined average current.

    Abstract translation: 用于驱动例如LED光源的光源的电路包括转换器,传感器和控制器。 转换器基于驱动信号将输入电压转换成LED光源两端的输出电压。 驱动信号的占空比确定流过LED光源的平均电流。 基于驱动信号,传感器选择性地耦合到转换器并从转换器去耦。 当传感器耦合到转换器时,传感器产生指示流过LED光源的电流的感测电压。 控制器耦合到转换器和传感器。 控制器将感测电压与表示通过LED光源的预定平均电流的参考电压进行比较,以产生补偿信号,并基于补偿信号产生驱动信号。 基于补偿信号调整驱动信号的占空比,以将流过LED光源的平均电流调整到预定的平均电流。

    PUSH-BUTTON TYPE CYLINDER LOCK ASSEMBLY
    17.
    发明申请
    PUSH-BUTTON TYPE CYLINDER LOCK ASSEMBLY 有权
    按钮式气缸锁定组件

    公开(公告)号:US20120304712A1

    公开(公告)日:2012-12-06

    申请号:US13484562

    申请日:2012-05-31

    Abstract: In a cylinder lock assembly, a latch operating tube has an enlarged end portion extending into an outer drive tube disposed in an outer handle. A locking spindle is disposed in the latch operating tube and has a locking tongue extending radially and outwardly through the outer drive tube to interlock with an outer rose when the locking spindle is pressed by a push button to move to a locked state. A locking plate is sleeved around the locking spindle and has a radial locking part to engage a protrusion that projects radially and inwardly from an inner surface of the enlarged end portion so that the locking spindle is locked against movements to an unlocked state when the locking spindle is in its locked state.

    Abstract translation: 在气缸锁组件中,闩锁操作管具有延伸到设置在外手柄中的外驱动管中的扩大端部。 锁定主轴设置在闩锁操作管中,并且当锁定主轴被按钮按压以移动到锁定状态时,锁定舌片通过外部驱动管径向向外延伸,以与外部玫瑰互锁。 锁定板围绕锁定主轴套管并且具有径向锁定部分以接合从扩大端部的内表面径向向内突出的突出部,使得当锁定主轴处于锁定状态时锁定主轴被锁定以解除锁定状态 处于锁定状态。

    CIRCUITS AND METHODS FOR DRIVING LIGHT SOURCES
    18.
    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:US20120299502A1

    公开(公告)日:2012-11-29

    申请号:US13556690

    申请日:2012-07-24

    CPC classification number: H05B37/02 H05B33/0815

    Abstract: A controller for controlling power to a light source includes a first sensing pin, a second sensing pin, a third sensing pin, and a driving pin. The first sensing pin receives a first signal indicating an instant current flowing through an energy storage element. The second sensing pin receives a second signal indicating an average current flowing through the energy storage element. The third sensing pin receives a third signal indicating whether the instant current decreases to a predetermined current level. The driving pin provides a driving signal to a switch to control an average current flowing through the light source to a target current level. The driving signal is generated based on one or more signals selected from the first signal, the second signal and the third signal.

    Abstract translation: 用于控制光源的功率的控制器包括第一感测针,第二感测针,第三感测针和驱动针。 第一感测引脚接收指示流过能量存储元件的瞬时电流的第一信号。 第二感测针接收指示流过能量存储元件的平均电流的第二信号。 第三感测针接收指示瞬时电流是否降低到预定电流电平的第三信号。 驱动引脚向开关提供驱动信号,以将流过光源的平均电流控制到目标电流水平。 基于从第一信号,第二信号和第三信号中选择的一个或多个信号产生驱动信号。

    CONTROLLERS FOR CONTROLLING POWER CONVERTERS
    19.
    发明申请
    CONTROLLERS FOR CONTROLLING POWER CONVERTERS 审中-公开
    控制电源转换器的控制器

    公开(公告)号:US20100289474A1

    公开(公告)日:2010-11-18

    申请号:US12777431

    申请日:2010-05-11

    Inventor: Ching-Chuan KUO

    CPC classification number: H02M3/156

    Abstract: In one embodiment, a controller includes a first comparator, a second comparator and a control unit coupled to the first and second comparators. The first comparator is operable for comparing a first sense signal indicative of an output current flowing through an energy storage component of the power converter with a first threshold, and for generating a first comparison signal. The second comparator is operable for comparing a second sense signal indicative of the output current with a second threshold and for generating a second comparison signal. The control unit is operable for turning a switch of the power convertor on and off according to the first and second comparison signals. The energy storage component is coupled to a power source for storing energy from the power source if the switch is turned on, and is decoupled from the power source for releasing stored energy to a load if the switch is turned off.

    Abstract translation: 在一个实施例中,控制器包括第一比较器,第二比较器和耦合到第一和第二比较器的控制单元。 第一比较器可操作用于将表示流过功率转换器的能量存储部件的输出电流的第一感测信号与第一阈值进行比较,并用于产生第一比较信号。 第二比较器可操作用于将表示输出电流的第二感测信号与第二阈值进行比较,并用于产生第二比较信号。 控制单元可操作用于根据第一和第二比较信号使功率转换器的开关接通和断开。 如果开关被接通,则能量存储部件耦合到用于存储来自电源的能量的电源,并且如果开关被断开则与电源解耦以释放存储的能量到负载。

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