Backlight circuit for LCD panel
    52.
    发明申请
    Backlight circuit for LCD panel 有权
    LCD面板背光电路

    公开(公告)号:US20080067951A1

    公开(公告)日:2008-03-20

    申请号:US11809046

    申请日:2007-05-30

    IPC分类号: H05B41/16 G06F3/038 G09G3/36

    CPC分类号: H05B41/245 G06F2200/1612

    摘要: A multi-lamp backlight system is disclosed. The multi-lamp backlight system includes a plurality of lamps, an inverter circuit and a current balance circuit. The inverter circuit is capable of converting a DC input signal to a pair of AC output signals, which have a 180 degree phase shift. The pair of AC output signals are delivered to the plurality of lamps. The current balance circuit is connected to the low voltage sides of the plurality of lamps for balancing the lamp currents.

    摘要翻译: 公开了一种多灯背光系统。 多灯背光系统包括多个灯,逆变器电路和电流平衡电路。 逆变器电路能够将DC输入信号转换成具有180度相移的一对AC输出信号。 一对交流输出信号被传送到多个灯。 电流平衡电路连接到多个灯的低电压侧,用于平衡灯电流。

    Reinforced apparatus for a lever handle of a door lock
    53.
    发明授权
    Reinforced apparatus for a lever handle of a door lock 有权
    用于门锁的杠杆手柄的加强装置

    公开(公告)号:US07137657B2

    公开(公告)日:2006-11-21

    申请号:US10809137

    申请日:2004-03-25

    IPC分类号: E05B15/12 E05B3/00

    摘要: A reinforced apparatus for a lever handle of a door lock comprises a housing having a first bottom plate and a second bottom plate, in which the first bottom plate connects a first annular wall and a second annular wall, and the second bottom plate connects the second annular wall and a third annular wall; a recess formed between the first annular wall and the second annular wall; and a rotary member, in which a coiled spring is disposed between a first and a second side plates of the rotary member: wherein the second bottom plate of the housing is formed with an axially extending predetermined bending member to be bent inwardly for a predetermined angle, after the rotary member and the coiled spring are disposed within the recess of the housing, so that the rotary member is maintained within the recess of the housing and can be operated externally.

    摘要翻译: 一种用于门锁的杠杆手柄的加强装置包括具有第一底板和第二底板的壳体,其中第一底板连接第一环形壁和第二环形壁,并且第二底板连接第二底板 环形壁和第三环形壁; 在所述第一环形壁和所述第二环形壁之间形成的凹部; 以及旋转构件,其中螺旋弹簧设置在旋转构件的第一和第二侧板之间:其中壳体的第二底板形成有轴向延伸的预定弯曲构件,以向内弯曲预定角度 在旋转构件和螺旋弹簧设置在壳体的凹部内之后,使得旋转构件保持在壳体的凹部内并且可以从外部操作。

    Inverter operably controlled to reduce electromagnetic interference
    54.
    发明授权
    Inverter operably controlled to reduce electromagnetic interference 失效
    逆变器可操作控制,以减少电磁干扰

    公开(公告)号:US06515881B2

    公开(公告)日:2003-02-04

    申请号:US09873669

    申请日:2001-06-04

    IPC分类号: H02M3335

    CPC分类号: H05B41/3921 H05B41/40

    摘要: A lamp load control system that includes a lamp controller comprising an inverter generating an AC signal from a DC signal, a load coupled to the inverter, and a feedback circuit coupled to the load generating a feedback signal indicative of power supplied to the load. In one exemplary embodiment, the system also includes a command signal generator generating a command signal indicative of a preferred power output of the inverter; wherein the command signal is combined with the feedback signal to cause the controller to temporarily reduce power delivered to the load. In another exemplary embodiment, the system includes a command signal generator generating a command signal indicative of a preferred power output of said inverter; wherein the controller receives the feedback signal and the command signal and temporarily reduces power delivered to the load based on the value of the feedback signal or the command signal.

    摘要翻译: 一种灯负载控制系统,其包括灯控制器,其包括从DC信号产生AC信号的逆变器,耦合到所述逆变器的负载,以及耦合到所述负载的反馈电路,所述反馈电路产生指示提供给所述负载的功率的反馈信号。 在一个示例性实施例中,系统还包括产生指示逆变器的优选功率输出的命令信号的命令信号发生器; 其中所述命令信号与所述反馈信号组合以使所述控制器暂时降低传送到所述负载的功率。 在另一示例性实施例中,系统包括产生指示所述逆变器的优选功率输出的命令信号的命令信号发生器; 其中所述控制器基于所述反馈信号或所述命令信号的值接收所述反馈信号和所述命令信号并暂时地减小递送给所述负载的功率。

    Lock handle assembly with limited angular movement
    55.
    发明授权
    Lock handle assembly with limited angular movement 失效
    锁定手柄组件有限角度运动

    公开(公告)号:US5067758A

    公开(公告)日:1991-11-26

    申请号:US632139

    申请日:1990-12-21

    IPC分类号: E05B3/06

    摘要: In a lock handle assembly, a lever handle has a rotary shaft to actuate a deadbolt which latches a door. The angular movement of the lever handle is limited by a mechanism including a rotary plate having radially projecting engaging members and mounted on the shaft, a fixed stop member to limit the forward movement of the rotary plate and a releasable stop member to limit the backward movement of the rotary plate. The shaft of the handle is detachably mounted to a casing by being fitted in a sleeve which in turned is mounted to the casing, thereby facilitating the replacement of the handle of the assembly.

    摘要翻译: 在锁把手组件中,杠杆手柄具有旋转轴以致动闩锁门的锁舌。 杠杆手柄的角运动由包括具有径向突出的接合构件并安装在轴上的旋转板的机构限制,用于限制旋转板的向前运动的固定止动构件和用于限制向后运动的可释放止动构件 的旋转板。 手柄的轴通过装配在套筒中而可拆卸地安装到壳体上,套筒转动安装到壳体上,从而便于更换组件的手柄。

    Door closer with a concealed mounting
    56.
    发明授权
    Door closer with a concealed mounting 失效
    闭门器带有隐蔽安装

    公开(公告)号:US4831687A

    公开(公告)日:1989-05-23

    申请号:US97015

    申请日:1987-09-16

    IPC分类号: E05F3/00 E05F3/22

    摘要: A door closer includes a plate-shaped mounting bracket and a closer body. The bracket is secured to a door. The closer body is secured detachably to the bracket by a particular tongue and groove engagement and a fastener. The closer body has an opening which is sized so that the bracket can be completely concealed by the closer body. After the fastener is removed, the closer body can slide within the bracket. The closer body has two opposed side walls each having an inner surface which has longitudinally spaced-apart grooves. The bracket body has two opposed sides on each of which spaced-apart tongues are provided for engaging with the grooves. The closer body can be sleeved on the bracket and then moved laterally relative to the bracket so as to achieve the tongue and groove engagement.

    摘要翻译: 门关闭器包括板形安装支架和更靠近的主体。 支架固定在门上。 更靠近的主体通过特定的榫槽接合和紧固件可拆卸地固定到支架上。 更靠近的主体具有开口,其尺寸使得支架可以被更靠近的主体完全隐藏。 紧固件拆下后,更靠近的主体可以在支架内滑动。 较近的主体具有两个相对的侧壁,每个侧壁具有纵向间隔开的凹槽的内表面。 支架主体具有两个相对的侧面,每个相对的侧面设置有间隔开的舌部用于与凹槽接合。 更靠近的主体可以套在支架上,然后相对于支架横向移动,以便实现舌槽的啮合。

    Circuits and methods for driving light sources
    57.
    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:US09232591B2

    公开(公告)日:2016-01-05

    申请号:US13559451

    申请日:2012-07-26

    IPC分类号: G05F1/00 H05B33/08

    摘要: A dimming controller can operate in a first mode or a second mode to control dimming of a light-emitting diode (LED) light source. The dimming controller can include a voltage control terminal and a current control terminal. The voltage control terminal provides a pulse signal when the dimming controller operates in the first mode to operate a control switch in either a first state or a second state. A first current flowing through the LED light source increases when the control switch is in the first state and decreases when the control switch is in the second state. The voltage control terminal provides a control signal to the control switch to cut off the first current when the dimming controller operates in the second mode. The current control terminal conducts a second current through the LED light source when the dimming controller operates in the second mode.

    摘要翻译: 调光控制器可以以第一模式或第二模式操作以控制发光二极管(LED)光源的调光。 调光控制器可以包括电压控制端子和电流控制端子。 当调光控制器在第一模式下操作时,电压控制端子提供脉冲信号,以在第一状态或第二状态下操作控制开关。 当控制开关处于第一状态时,流过LED光源的第一电流增加,并且当控制开关处于第二状态时,第一电流减小。 当调光控制器在第二模式下操作时,电压控制端子向控制开关提供控制信号以切断第一电流。 当调光控制器在第二模式下操作时,电流控制端子通过LED光源传导第二电流。

    Electric door lock
    58.
    发明授权
    Electric door lock 有权
    电动门锁

    公开(公告)号:US08621900B2

    公开(公告)日:2014-01-07

    申请号:US13091295

    申请日:2011-04-21

    IPC分类号: E05B47/06

    摘要: An electric door lock including: a lock housing; an operating member having a holding part and a shaft part, the shaft part able to be placed in the lock housing, the shaft part connected to the holding part, the holding part defined as a long axis; a cog wheel able to be placed in the lock housing, the cog wheel having at least one bump; a coupling plate installed on the shaft part of the operating member, the coupling plate having at least one bulge and one protruding part, with the protruding part and the long axis of the holding part designed to move in alignment with each other; a motor placed in the lock housing; three sensor switches set separately in the lock housing; operating the motor causing the bump of the cog wheel to rotate and push the bulge of the coupling plate, so that the protruding part of the coupling plate of the electric door lock installed in the required position on a left-hand door or right-hand door, selectively touches the two sensor switches adjacent to each other, so as to reach the correct unlocked position or locked position.

    摘要翻译: 一种电动门锁,包括:锁壳; 具有保持部和轴部的操作构件,所述轴部能够被放置在所述锁定壳体中,所述轴部连接到所述保持部,所述保持部被限定为长轴; 能够放置在所述锁壳体中的齿轮,所述齿轮具有至少一个凸块; 安装在所述操作构件的所述轴部上的联接板,所述联接板具有至少一个凸起和一个突出部分,所述保持部件的突出部分和长轴线被设计成彼此对准地移动; 放置在锁壳内的电机; 三个传感器开关分别设在锁壳内; 操作电动机使得齿轮的凸起旋转并推动联接板的凸起,使得电动门锁的联接板的突出部分安装在左侧门或右手的所需位置 门,有选择地接触彼此相邻的两个传感器开关,以便达到正确的解锁位置或锁定位置。

    Systems and methods for driving a light source
    59.
    发明授权
    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:US08581517B2

    公开(公告)日:2013-11-12

    申请号:US12561888

    申请日:2009-09-17

    IPC分类号: G05F1/00

    摘要: 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.

    摘要翻译: 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。

    Circuits and methods for driving a load with power factor correction function
    60.
    发明授权
    Circuits and methods for driving a load with power factor correction function 失效
    用功率因数校正功能驱动负载的电路和方法

    公开(公告)号:US08143800B2

    公开(公告)日:2012-03-27

    申请号:US12817388

    申请日:2010-06-17

    IPC分类号: H05B37/02

    摘要: 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.

    摘要翻译: 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。