Circuits and methods for controlling power of light sources
    31.
    发明授权
    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:US08324832B2

    公开(公告)日:2012-12-04

    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。

    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
    33.
    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。

    CIRCUITS AND METHODS FOR DRIVING A LOAD WITH POWER FACTOR CORRECTION FUNCTION
    35.
    发明申请
    CIRCUITS AND METHODS FOR DRIVING A LOAD WITH POWER FACTOR CORRECTION FUNCTION 失效
    用功率因数校正函数驱动负载的电路和方法

    公开(公告)号:US20100320934A1

    公开(公告)日:2010-12-23

    申请号:US12817388

    申请日:2010-06-17

    CPC classification number: H02M1/4258 H05B33/0815 Y02B70/126

    Abstract: A circuit for driving a load includes a power line, converter circuitry, and a controller. The power line is operable for providing an input current and an input voltage. The converter circuitry coupled to the power line is operable for converting the input voltage to a regulated voltage to drive the load, and for providing a current detection signal indicating whether a converter current flowing through the converter circuitry drops to a predetermined level. The controller coupled to the converter circuitry is operable for correcting a power factor of the circuit based on the current detection signal and the input voltage such that a waveform of the input current follows a waveform of the input voltage.

    Abstract translation: 用于驱动负载的电路包括电力线,转换器电路和控制器。 电力线可操作用于提供输入电流和输入电压。 耦合到电力线的转换器电路可操作用于将输入电压转换为调节电压以驱动负载,并且用于提供指示流过转换器电路的转换器电流是否下降到预定电平的电流检测信号。 耦合到转换器电路的控制器可操作用于基于电流检测信号和输入电压校正电路的功率因数,使得输入电流的波形遵循输入电压的波形。

    Driving circuit with dimming controller for driving light sources
    36.
    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。

    Restoring structure of a lock
    37.
    发明授权
    Restoring structure of a lock 失效
    恢复锁的结构

    公开(公告)号:US07073829B2

    公开(公告)日:2006-07-11

    申请号:US10825091

    申请日:2004-04-15

    CPC classification number: E05B3/065 Y10T292/57 Y10T292/91

    Abstract: A restoring structure of a lock comprises: a sleeve disk, having a first wall and a second wall, the first wall interconnecting a first face and a second face, and the second wall interconnecting the second face and a third face, the first face and the second face defining a recess, the first face further having a projection, and the second wall defining a central hole; an integrally formed rotative tube, inserted through the central hole of the sleeve disk, and having an end which is formed with a bent portion at a location corresponding to the projection of the sleeve disk and has at least one protrusion disposed at a predetermined position, the protrusion abutting against the first face of the sleeve disk; a torsion spring having two legs, adapted to fit onto an outer wall of the rotative tube such that the legs engage on the bent portion of the rotative tube and the projection of the sleeve disk; and a guard ring disposed adjacent to the third face of the sleeve disk and adapted to engage with at least one lateral slot formed on the rotative tube; whereby when the rotative tube is rotated clockwise or counterclockwise at a desired angle, the torsion spring is compressed to create an elastic deformation such that the at least one protrusion of the rotative tube runs toward the projection of the sleeve disk, and when the rotative tube is released, the rotative tube is returned to its original position by a restoration force of the torsion spring.

    Abstract translation: 锁的恢复结构包括:具有第一壁和第二壁的套筒盘,第一壁互连第一面和第二面,第二壁互连第二面和第三面,第一面和 所述第二面限定凹部,所述第一面还具有突起,所述第二壁限定中心孔; 一个整体形成的旋转管,插入穿过套筒盘的中心孔,并且其端部在对应于套筒盘的突起的位置处形成有弯曲部分,并且具有设置在预定位置的至少一个突起, 所述突起抵靠所述套筒盘的第一面; 具有两个腿的扭簧,适于装配在旋转管的外壁上,使得腿接合在旋转管的弯曲部分和套筒盘的突出部上; 以及保护环,其设置成邻近所述套筒盘的所述第三面并且适于与形成在所述旋转管上的至少一个侧向槽接合; 由此当旋转管以期望的角度顺时针或逆时针旋转时,扭转弹簧被压缩以产生弹性变形,使得旋转管的至少一个突起朝向套筒盘的突出部延伸,并且当旋转管 释放后,旋转管通过扭簧的恢复力返回到其原始位置。

    Lock set with improved spindle construction
    38.
    发明授权
    Lock set with improved spindle construction 失效
    锁定设置,改善主轴结构

    公开(公告)号:US5927777A

    公开(公告)日:1999-07-27

    申请号:US81531

    申请日:1998-05-19

    CPC classification number: E05B55/005 Y10T292/57 Y10T292/93 Y10T70/5832

    Abstract: A lock set for a door has a cylindrical spindle integrally coupled with a knob and containing a slide plate which can be actuated to lock and unlock the cylindrical spindle against rotation. The cylindrical wall of the spindle is provided with two diametrically opposing grooves which extend axially from one end thereof to a predetermined depth and which are opened at the one end so as to facilitate installation of the slide plate in the spindle. The slide plate has two opposing lugs for insertion into the grooves.

    Abstract translation: 用于门的锁定装置具有与旋钮一体地联接的圆柱形心轴,并且包含滑动板,该滑动板可被致动以锁定和解锁圆柱形主轴以避免旋转。 主轴的圆柱形壁设有两个直径相对的槽,其从其一端轴向延伸到预定深度,并且在一端开口,以便于将滑板安装在主轴中。 滑板具有用于插入凹槽中的两个相对的凸耳。

    Circuits and methods for driving light sources
    39.
    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 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。

    Driving circuit for powering LED light sources
    40.
    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

    CPC classification number: H05B33/0815

    Abstract: 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.

    Abstract translation: 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。

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