Device and method for dimming light sources
    83.
    发明授权
    Device and method for dimming light sources 有权
    用于调光光源的装置和方法

    公开(公告)号:US08933639B2

    公开(公告)日:2015-01-13

    申请号:US12712257

    申请日:2010-02-25

    IPC分类号: H05B37/02 D06F39/00 H05B33/08

    CPC分类号: D06F39/006 H05B33/0815

    摘要: In various embodiments, a device for dimming a light source is provided. The device may include a two-wire power supply line having interposed therein a switch for controlling transfer of the power supply towards the light source; a capacitance located downstream of the switch being traversed by a charge current as the switch is switched on; and a pre-charge stage interposed between the switch and the capacitance; the pre-charge stage being configured to limit to a given value the charge current.

    摘要翻译: 在各种实施例中,提供了一种用于调光光源的装置。 该装置可以包括两线电源线,其中插入有用于控制电源朝向光源的传送的开关; 当开关接通时,位于开关下游的电容被充电电流穿过; 以及介于所述开关和所述电容之间的预充电阶段; 预充电阶段被配置为将给定值限制为充电电流。

    Circuit assembly and method for operating a high pressure discharge lamp
    88.
    发明授权
    Circuit assembly and method for operating a high pressure discharge lamp 失效
    用于操作高压放电灯的电路组件和方法

    公开(公告)号:US08593072B2

    公开(公告)日:2013-11-26

    申请号:US12742447

    申请日:2007-11-13

    IPC分类号: H05B37/02

    摘要: A circuit arrangement for operating a high-pressure discharge lamp with an operating circuit for the high-pressure discharge lamp with an input for receiving a switch-on/switch-off signal for the high-pressure discharge lamp and at least one output for providing an operating signal to the high-pressure discharge lamp, wherein the operating circuit is designed to reduce the power of the operating signal provided at the at least one output once a switch-off signal has been received at its input, wherein the operating circuit furthermore designed to provide the operating signal as an AC signal above a predeterminable power threshold value and as a quasi DC signal below the predeterminable power threshold value.

    摘要翻译: 一种用于操作具有用于高压放电灯的操作电路的高压放电灯的电路装置,具有用于接收高压放电灯的接通/关断信号的输入端和至少一个用于提供 操作信号到高压放电灯,其中所述操作电路被设计成一旦在其输入处接收到关断信号,就降低在所述至少一个输出处提供的操作信号的功率,其中所述操作电路进一步 旨在将操作信号提供为高于可预定功率阈值的AC信号,并将其作为低于可预定功率阈值的准DC信号。

    Electronic ballast and method for operating an electrical lamp
    89.
    发明授权
    Electronic ballast and method for operating an electrical lamp 有权
    电子镇流器和操作电灯的方法

    公开(公告)号:US08558459B2

    公开(公告)日:2013-10-15

    申请号:US12224798

    申请日:2007-03-05

    IPC分类号: H05B37/02

    CPC分类号: H05B41/295

    摘要: An electronic ballast for an electrical lamp (2) provided with a first (21) and a second filament (22), includes a heating device which is used to heat the filaments (21, 22) and includes a resonance circuit (5), and an evaluation unit (11) designed for the evaluation of at least one measuring value of an electrical parameter during pre-determinable adjustments of operating conditions of the resonance circuit (5). The number of filaments (21, 22) of the electrical lamp (2) in electrical contact with the electronic ballast (1) can be identified according to the measuring value, and the electrical lamp (2) can be switched on by the electronic ballast (1) according to the identified number. A method for operating an electrical lamp by an electronic ballast is also described.

    摘要翻译: 一种设置有第一(21)和第二灯丝(22)的电灯(2)的电子镇流器,包括用于加热灯丝(21,22)并包括谐振电路(5)的加热装置, 以及评估单元(11),其被设计用于在所述谐振电路(5)的操作条件的可预先确定的调整期间评估电参数的至少一个测量值。 可以根据测量值识别与电子镇流器(1)电接触的电灯(2)的灯丝(21,22)的数量,并且可以通过电子镇流器来接通电灯(2) (1)根据识别号码。 还描述了通过电子镇流器操作电灯的方法。

    Circuit configuration and method for operating at least one first and one second LED
    90.
    发明授权
    Circuit configuration and method for operating at least one first and one second LED 有权
    用于操作至少一个第一和第二LED的电路配置和方法

    公开(公告)号:US08547031B2

    公开(公告)日:2013-10-01

    申请号:US13002521

    申请日:2008-07-04

    申请人: Ralf Hying

    发明人: Ralf Hying

    IPC分类号: H05B37/00

    CPC分类号: H05B33/0827 H05B33/0851

    摘要: A circuit configuration may include an operational amplifier having a plus and a minus input and an output; and a current sensing resistor, whereby the voltage drop across the resistor is coupled to the minus input; a first transistor having a control electrode, a reference electrode and a working electrode, the working-reference electrode path of which is coupled in series to a first and second connection for a first LED between a connection for a supply voltage and the reference potential; a second transistor having a control electrode, a reference electrode and a working electrode, the working-reference electrode path of which is coupled in series to a first and second connection for a second LED between a connection for a supply voltage and the reference potential; a first switch and a second switch coupled in series between the output and the control electrode of the first and second transistor, respectively.

    摘要翻译: 电路配置可以包括具有正和负输入和输出的运算放大器; 和电流感测电阻器,由此电阻器两端的电压降耦合到负输入端; 具有控制电极,参考电极和工作电极的第一晶体管,其工作参考电极路径串联耦合到用于供电电压的连接和参考电位之间的第一LED的第一和第二连接; 具有控制电极的第二晶体管,参考电极和工作电极,其工作参考电极路径串联耦合到用于供电电压的连接和参考电位之间的第二LED的第一和第二连接; 分别耦合在第一和第二晶体管的输出和控制电极之间的第一开关和第二开关。