Circuits and methods for driving light sources
    1.
    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:US08664895B2

    公开(公告)日:2014-03-04

    申请号:US13556690

    申请日:2012-07-24

    CPC分类号: H05B37/02 H05B33/0815

    摘要: 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.

    摘要翻译: 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。

    Driving circuit for powering LED light sources
    2.
    发明授权
    Driving circuit for powering LED light sources 失效
    为LED光源供电的驱动电路

    公开(公告)号:US08598792B2

    公开(公告)日:2013-12-03

    申请号:US13371375

    申请日:2012-02-10

    IPC分类号: H03K19/086

    CPC分类号: H05B33/0815

    摘要: Embodiments of the invention provided a driving circuit for powering a light-emitting diode (LED) light source. The driving circuit includes a rectifier, a filter capacitor, and a control circuit. The rectifier converts an AC voltage from an AC power source to a rectified AC voltage. The filter capacitor coupled to the rectifier filters the rectified AC voltage to provide a DC voltage. The control circuit controls power supplied to the LED light source. The control circuit enables a discharging current periodically to discharge the filter capacitor if a switch coupled between an AC power source and a rectifier is turned off and disables the discharging current if the control circuit determines that the switch is turned on.

    摘要翻译: 本发明的实施例提供了一种用于为发光二极管(LED)光源供电的驱动电路。 驱动电路包括整流器,滤波电容器和控制电路。 整流器将AC电压从AC电源转换为整流的AC电压。 耦合到整流器的滤波电容器对整流的AC电压进行滤波以提供DC电压。 控制电路控制提供给LED光源的电力。 如果连接在AC电源和整流器之间的开关被断开并且如果控制电路确定开关导通而禁止放电电流,则控制电路使能放电电流周期性地对滤波电容器放电。

    Controllers, systems and methods for controlling dimming of light sources
    3.
    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

    IPC分类号: H05B37/02

    摘要: 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.

    摘要翻译: 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
    4.
    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

    IPC分类号: H05B37/02

    摘要: 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.

    摘要翻译: 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。

    PUSH-BUTTON TYPE CYLINDER LOCK ASSEMBLY
    5.
    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

    IPC分类号: E05B65/06 E05C1/10 E05C1/12

    摘要: 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.

    摘要翻译: 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
    6.
    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

    IPC分类号: H05B37/02

    CPC分类号: H05B37/02 H05B33/0815

    摘要: 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.

    摘要翻译: 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。

    CIRCUITS AND METHODS FOR CONTROLLING DIMMING OF A LIGHT SOURCE
    7.
    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:US20120169243A1

    公开(公告)日:2012-07-05

    申请号:US13366127

    申请日:2012-02-03

    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。

    CIRCUITS AND METHODS FOR DRIVING LIGHT SOURCES
    8.
    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:US20120126710A1

    公开(公告)日:2012-05-24

    申请号:US12953353

    申请日:2010-11-23

    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。

    Circuits and methods for driving light sources
    9.
    发明授权
    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:US08169160B2

    公开(公告)日:2012-05-01

    申请号:US12967933

    申请日:2010-12-14

    CPC分类号: H05B33/0815

    摘要: 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.

    摘要翻译: 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。

    Circuits and methods for powering light source with balanced currents
    10.
    发明授权
    Circuits and methods for powering light source with balanced currents 失效
    用平衡电流为光源供电的电路和方法

    公开(公告)号:US08084960B2

    公开(公告)日:2011-12-27

    申请号:US12650016

    申请日:2009-12-30

    IPC分类号: G05F1/00

    摘要: A light source driving circuit for powering multiple light sources in a vehicle includes multiple current limiters and a balance controller. The current limiters are coupled to the light sources for adjusting currents of the light sources respectively. The balance controller coupled to the current limiters can control the current limiters such that a current flowing through each of the light sources is substantially the same as a first target current. Moreover, the balance controller can control the current limiters in response to a brake of the vehicle such that a current flowing through each of the light sources is substantially the same as a second target current.

    摘要翻译: 用于为车辆中的多个光源供电的光源驱动电路包括多个限流器和平衡控制器。 电流限制器耦合到光源,用于分别调节光源的电流。 耦合到电流限制器的平衡控制器可以控制电流限制器,使得流过每个光源的电流基本上与第一目标电流相同。 此外,平衡控制器可以响应于车辆的制动来控制电流限制器,使得流过每个光源的电流与第二目标电流基本相同。