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    Driving a light-emitting diode
    3.
    发明授权
    Driving a light-emitting diode 有权
    驱动发光二极管

    公开(公告)号：US08564218B2

    公开(公告)日：2013-10-22

    申请号：US12919041

    申请日：2009-03-02

    申请人： Harald Josef Gunther Radermacher ,  Georg Sauerlaender

    发明人： Harald Josef Gunther Radermacher ,  Georg Sauerlaender

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0803 ,  H05B33/0821

    摘要： An input stage (10) of an apparatus (1) for driving a light-emitting diode (40-42) receives a signal from a power supply (30-32), and an output stage (20) supplies a current to the light-emitting diode (40-42). The peak value divided by the average value of the current forms a ratio. The driving efficiency is improved by providing the input stage (10) with an arrangement (11) for reducing this ratio by manipulation of the signal, without the necessity of using any smoothing capacitors/inductors. The manipulation may comprise an addition of a frequency component to the signal or an adaptation of an amplitude of a frequency component of the signal. This frequency component may be a third and/or fifth and/or seventh harmonic frequency component of a fundamental frequency component of the signal. The arrangement (11) may comprise a resonant tank which may need to be tuned to the frequency component of the signal.

    摘要翻译： 用于驱动发光二极管（40-42）的装置（1）的输入级（10）接收来自电源（30-32）的信号，并且输出级（20）向光提供电流 发光二极管（40-42）。 峰值除以电流的平均值形成一个比率。 通过为输入级（10）提供用于通过操纵信号来减小该比率的装置（11），而不需要使用任何平滑电容器/电感器来提高驱动效率。 操作可以包括对信号添加频率分量或者对信号的频率分量的幅度进行自适应。 该频率分量可以是信号的基频分量的第三和/或第五和/或第七谐波频率分量。 布置（11）可以包括可能需要调谐到信号的频率分量的谐振槽。

    Illumination Device Comprising Multiple LEDs
    4.
    发明申请
    Illumination Device Comprising Multiple LEDs 有权
    包含多个LED的照明装置

    公开(公告)号：US20110133658A1

    公开(公告)日：2011-06-09

    申请号：US13055237

    申请日：2009-07-23

    申请人： Georg Sauerlaender ,  Harald Josef Gunther Radermacher

    发明人： Georg Sauerlaender ,  Harald Josef Gunther Radermacher

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0824

    摘要： A light generating device (20) comprises: —an input for receiving a DC input voltage (Vin) of varying magnitude; —a controllable current source (40); —a switch matrix (30) comprising a plurality of controllable switches (S1-SN); —a plurality of n LEDs (D1, D2, . . . Dn) connected to output terminals of the switch matrix (30); —a controller (50) controlling said switches and controlling the current generated by the current source dependent on the momentary value of the DC input voltage (Vin). The controller is capable of operating in at least three different control states. In a first control state all LEDs are connected in parallel. In a second control state all LEDs are connected in series. In a third control state at least two of said LEDs are connected in parallel while also at least two of said LEDs are connected in series.

    摘要翻译： 发光装置（20）包括： - 用于接收不同大小的DC输入电压（Vin）的输入; - 可控电流源（40）; - 包括多个可控开关（S1-SN）的开关矩阵（30）; - 连接到开关矩阵（30）的输出端的多个n个LED（D1，D2 ...，Dn）; - 控制器（50）控制所述开关并根据DC输入电压（Vin）的瞬时值来控制由电流源产生的电流。 控制器能够在至少三种不同的控制状态下运行。 在第一控制状态下，所有LED并联。 在第二控制状态下，所有LED串联连接。 在第三控制状态下，所述LED中的至少两个并联连接，并且至少两个所述LED串联连接。

    Illumination device comprising multiple LEDs
    5.
    发明授权
    Illumination device comprising multiple LEDs 有权
    包括多个LED的照明装置

    公开(公告)号：US08487554B2

    公开(公告)日：2013-07-16

    申请号：US13055237

    申请日：2009-07-23

    申请人： Georg Sauerlaender ,  Harald Josef Gunther Radermacher

    发明人： Georg Sauerlaender ,  Harald Josef Gunther Radermacher

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0824

    摘要： A light generating device (20) comprises: —an input for receiving a DC input voltage (Vin) of varying magnitude; —a controllable current source (40); —a switch matrix (30) comprising a plurality of controllable switches (S1-SN); —a plurality of n LEDs (D1, D2, . . . Dn) connected to output terminals of the switch matrix (30); —a controller (50) controlling said switches and controlling the current generated by the current source dependent on the momentary value of the DC input voltage (Vin). The controller is capable of operating in at least three different control states. In a first control state all LEDs are connected in parallel. In a second control state all LEDs are connected in series. In a third control state at least two of said LEDs are connected in parallel while also at least two of said LEDs are connected in series.

    摘要翻译： 发光装置（20）包括： - 用于接收不同大小的DC输入电压（Vin）的输入; - 可控电流源（40）; - 包括多个可控开关（S1-SN）的开关矩阵（30）; - 连接到开关矩阵（30）的输出端的多个n个LED（D1，D2 ...，Dn）; - 控制器（50）控制所述开关并根据DC输入电压（Vin）的瞬时值来控制由电流源产生的电流。 控制器能够在至少三种不同的控制状态下运行。 在第一控制状态下，所有LED并联。 在第二控制状态下，所有LED串联连接。 在第三控制状态下，所述LED中的至少两个并联连接，并且至少两个所述LED串联连接。

    DRIVING A LIGHT-EMITTING DIODE
    6.
    发明申请
    DRIVING A LIGHT-EMITTING DIODE 有权
    驱动发光二极管

    公开(公告)号：US20100320931A1

    公开(公告)日：2010-12-23

    申请号：US12919041

    申请日：2009-03-02

    申请人： Harald Josef Gunther Radermacher ,  Georg Sauerlaender

    发明人： Harald Josef Gunther Radermacher ,  Georg Sauerlaender

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0803 ,  H05B33/0821

    摘要： An input stage (10) of an apparatus (1) for driving a light-emitting diode (40-42) receives a signal from a power supply (30-32), and an output stage (20) supplies a current to the light-emitting diode (40-42). The peak value divided by the average value of the current forms a ratio. The driving efficiency is improved by providing the input stage (10) with an arrangement (11) for reducing this ratio by manipulation of the signal, without the necessity of using any smoothing capacitors/inductors. The manipulation may comprise an addition of a frequency component to the signal or an adaptation of an amplitude of a frequency component of the signal. This frequency component may be a third and/or fifth and/or seventh harmonic frequency component of a fundamental frequency component of the signal. The arrangement (11) may comprise a resonant tank which may need to be tuned to the frequency component of the signal.

    摘要翻译： 用于驱动发光二极管（40-42）的装置（1）的输入级（10）接收来自电源（30-32）的信号，并且输出级（20）向光提供电流 发光二极管（40-42）。 峰值除以电流的平均值形成一个比率。 通过为输入级（10）提供用于通过操纵信号来减小该比率的装置（11），而不需要使用任何平滑电容器/电感器来提高驱动效率。 操作可以包括对信号添加频率分量或者对信号的频率分量的幅度进行自适应。 该频率分量可以是信号的基频分量的第三和/或第五和/或第七谐波频率分量。 布置（11）可以包括可能需要调谐到信号的频率分量的谐振槽。

    Dimmable light source with temperature shift
    7.
    发明授权
    Dimmable light source with temperature shift 有权
    可调光源具有温度偏移

    公开(公告)号：US09041306B2

    公开(公告)日：2015-05-26

    申请号：US13202106

    申请日：2010-02-15

    申请人： Georg Sauerlaender

    发明人： Georg Sauerlaender

    IPC分类号： H05B41/16 ,  H05B33/08

    CPC分类号： H05B33/0812 ,  H05B33/0857 ,  Y02B20/343 ,  Y10S362/80

    摘要： An illumination device (1) comprises: input terminals (2) for coupling to AC mains; a LED string (10) connected in series with the input terminals; a rectifier (30), having input terminals connected in series with the LED string; a controllable voltage source (40), having input terminals coupled to the rectifier output terminals; a series arrangement of at least one auxiliary LED (51) and a second ballast resistor (52) connected to the output terminals of the controllable voltage source. The voltage source comprises: a series arrangement of an adjustable first resistor (46) and a second resistor (47) connected in parallel to the input terminals; a tuneable Zener diode (49) connected in parallel to the output terminals, having a control input terminal (48) connected to the node between the two resistors; wherein positive output terminal is connected to positive input terminal and negative output terminal is connected to negative input terminal.

    摘要翻译： 照明装置（1）包括：用于耦合到AC电源的输入端子（2） 与输入端串联连接的LED串（10）; 整流器（30），其具有与LED串串联连接的输入端子; 可控电压源（40），其具有耦合到整流器输出端子的输入端子; 连接到可控电压源的输出端的至少一个辅助LED（51）和第二镇流电阻（52）的串联布置。 电压源包括：与输入端并联连接的可调第一电阻器（46）和第二电阻器（47）的串联布置; 与输出端并联连接的可调谐齐纳二极管（49），具有连接到两个电阻之间的节点的控制输入端（48）; 其中正输出端连接到正输入端，负输出端连接到负输入端。

    HARMONIC COMPENSATION CIRCUIT AND METHOD FOR AN LED LIGHT UNIT
    8.
    发明申请
    HARMONIC COMPENSATION CIRCUIT AND METHOD FOR AN LED LIGHT UNIT 有权
    谐波补偿电路和LED灯组件的方法

    公开(公告)号：US20110089868A1

    公开(公告)日：2011-04-21

    申请号：US12995488

    申请日：2009-06-08

    申请人： Georg Sauerlaender

    发明人： Georg Sauerlaender

    IPC分类号： H02J3/01

    CPC分类号： H02J3/01 ,  H05B33/0815 ,  Y02E40/40

    摘要： The present invention relates to a harmonic compensation circuit for compensating at least the third harmonic in the input current (Imains) drawn by an LED light source (1) from a mains voltage supply (2), comprising: a signal input (21, 22) for receiving a first input signal proportional to the input voltage (Vin) of said LED light source (1) and a second input signal (Vsh) proportional to the LED current (ILED) of said LED light source (1), a signal output (25) for outputting a compensation current (Icomp), a processing unit (24a, 24b) for comparing said second input signal (Vsh) to a reference signal (VRb, VR7) and for generating said compensation current (Icomp) based on said comparison, the sum of said compensation current (Icomp) and said LED current (ILED) being proportional to the input voltage (Vin) of said LED light source (1) and said compensation current (Icomp) being provided for minimizing at least the third harmonic in the input current (Imains) drawn by said LED light source (1) from said mains voltage supply (2).

    摘要翻译： 谐波补偿电路技术领域本发明涉及一种谐波补偿电路，用于至少补偿由LED光源（1）从电源电压（2）引出的输入电流（Imains）中的三次谐波，包括：信号输入端 ），用于接收与所述LED光源（1）的输入电压（Vin）成比例的第一输入信号和与所述LED光源（1）的LED电流（ILED）成比例的第二输入信号（Vsh），信号 用于输出补偿电流（Icomp）的输出（25），用于将所述第二输入信号（Vsh）与参考信号（VRb，VR7）进行比较并用于产生所述补偿电流（Icomp）的处理单元（24a，24b） 所述比较，所述补偿电流（Icomp）和所述LED电流（ILED）与所述LED光源（1）的输入电压（Vin）和所述补偿电流（Icomp）成比例的和被提供用于使至少 由所述LED灯所绘制的输入电流（Imains）中的三次谐波 （1）从电源电压（2）。

    METHOD AND A DRIVER CIRCUIT FOR LED OPERATION
    9.
    发明申请
    METHOD AND A DRIVER CIRCUIT FOR LED OPERATION 有权
    LED操作的方法和驱动电路

    公开(公告)号：US20090230875A1

    公开(公告)日：2009-09-17

    申请号：US11719888

    申请日：2005-11-25

    申请人： Georg Sauerlaender ,  Reinhold Elferich ,  Bernd Ackermann ,  Dirk Hente ,  Christoph Martiny ,  Matthias Wendt

    发明人： Georg Sauerlaender ,  Reinhold Elferich ,  Bernd Ackermann ,  Dirk Hente ,  Christoph Martiny ,  Matthias Wendt

    IPC分类号： H05B41/36

    CPC分类号： H05B33/0815 ,  H02M3/3382

    摘要： In a method and a driver circuit for operating one or more light emitting diodes, LEDs, an alternating supply current is generated and transformed to an alternating secondary winding voltage. Using rectifier means, such as diodes or synchronous switches, the alternating secondary winding voltage is converted to a substantially constant load current by using a buffer element, such as an output choke, i.e. a suitable inductor. The power transferred from the power source to the LEDs may be controlled by frequency control of the alternating supply current.

    摘要翻译： 在用于操作一个或多个发光二极管（LED）的方法和驱动电路中，产生交流的供电电流并将其转换成交替的次级绕组电压。 使用诸如二极管或同步开关的整流装置，通过使用诸如输出扼流圈（即合适的电感器）的缓冲元件将交变次级绕组电压转换成基本恒定的负载电流。 从电源传输到LED的功率可以通过交流电源电流的频率控制来控制。

    LED driver circuit
    10.
    发明授权
    LED driver circuit 有权
    LED驱动电路

    公开(公告)号：US08217587B2

    公开(公告)日：2012-07-10

    申请号：US12162372

    申请日：2007-01-26

    申请人： Georg Sauerlaender

    发明人： Georg Sauerlaender

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0851 ,  H05B33/0815

    摘要： The present invention relates to a low cost LED driver module comprising a switched-mode power supply (smps) having down-converting characteristics (11) which is controlled by a comparator (31). The comparator is hysteresis configured, which reduces ripple and transients in the LED current, and the module can be accomplished with inexpensive standard components.

    摘要翻译： 本发明涉及一种低成本LED驱动器模块，其包括由比较器（31）控制的具有下变频特性（11）的开关模式电源（smps）。 比较器是滞后配置的，可以减少LED电流的纹波和瞬变，并且可以用廉价的标准元件实现模块。