Circuit-arrangement for modulating an LED and method for operating same
    1.
    发明授权
    Circuit-arrangement for modulating an LED and method for operating same 有权
    用于调制LED的电路布置及其操作方法

    公开(公告)号:US08063579B2

    公开(公告)日:2011-11-22

    申请号:US12097059

    申请日:2006-12-04

    IPC分类号: H05B37/02

    摘要: To achieve high modulation frequencies when modulating an LED, a circuit-arrangement for modulating at least one LED comprises a modulation-circuit (3) parallel to the LED, wherein the modulation-circuit (3) comprises in a series connection a switching device and a threshold device. In a method for operating an LED, the LED is modulated by alternating the switching device between a closed state and an open state.

    摘要翻译: 为了在调制LED时实现高调制频率,用于调制至少一个LED的电路装置包括平行于LED的调制电路(3),其中调制电路(3)包括串联连接开关装置和 阈值设备。 在用于操作LED的方法中,通过在闭合状态和打开状态之间交替切换装置来调制LED。

    Supply circuit and device comprising a supply circuit
    2.
    发明授权
    Supply circuit and device comprising a supply circuit 有权
    供应电路和装置包括供电电路

    公开(公告)号:US08330391B2

    公开(公告)日:2012-12-11

    申请号:US12281165

    申请日:2007-03-02

    IPC分类号: H05B37/02

    摘要: Supply circuits (1-3,101-102,201-203) for supplying output current signals to loads (6,106,206) and comprising first circuits (1,101,201) with transistors (11-14,111-112,211-212) for converting input voltage signals into pulse signals and comprising second circuits (2,102,202) with resonance circuits for receiving the pulse signals and for supplying the output current signals to the loads (6,106,206) are provided with third circuits (3,203) for controlling the first circuits (1,101,201), which third circuits (3,203) comprise generators (35-37) for generating control signals for controlling the transistors (11-14,111-112,211-212) for reducing dependencies between the input voltage signals and the output current signals. The third circuits (3,203) supply the control signals in dependence of the input voltage signals and independently from the output current signals. The transistors (11-14,111-112,211-212) may form a full bridge, a full bridge operated in a half bridge mode, or a half bridge.

    摘要翻译: 用于向负载(6,106,206)提供输出电流信号并且包括用于将输入电压信号转换为脉冲信号的晶体管(11-14,111-112,211-212)的第一电路(1,101,201)的电源电路(1-3,101-102,201-203) 具有用于接收脉冲信号和用于向负载(6,106,206)提供输出电流信号的谐振电路的电路(2,102,202)设置有用于控制第一电路(1,101,201)的第三电路(3,203),所述第三电路(3,203)包括发电机 (35-37),用于产生用于控制晶体管(11-14,111-112,211-212)的控制信号,用于减少输入电压信号和输出电流信号之间的相关性。 第三电路(3,203)根据输入电压信号提供控制信号,并独立于输出电流信号。 晶体管(11-14,111-112,211-212)可以形成全桥,半桥工作的全桥或半桥。

    SUPPLY CIRCUIT AND DEVICE COMPRISING A SUPPLY CIRCUIT
    3.
    发明申请
    SUPPLY CIRCUIT AND DEVICE COMPRISING A SUPPLY CIRCUIT 有权
    供电电路和包含供电电路的装置

    公开(公告)号:US20090021175A1

    公开(公告)日:2009-01-22

    申请号:US12281165

    申请日:2007-03-02

    IPC分类号: H05B37/00

    摘要: Supply circuits (1-3,101-102,201-203) for supplying output current signals to loads (6,106,206) and comprising first circuits (1,101,201) with transistors (11-14,111-112,211-212) for converting input voltage signals into pulse signals and comprising second circuits (2,102,202) with resonance circuits for receiving the pulse signals and for supplying the output current signals to the loads (6,106,206) are provided with third circuits (3,203) for controlling the first circuits (1,101,201), which third circuits (3,203) comprise generators (35-37) for generating control signals for controlling the transistors (11-14,111-112,211-212) for reducing dependencies between the input voltage signals and the output current signals. The third circuits (3,203) supply the control signals in dependence of the input voltage signals and independently from the output current signals. The transistors (11-14,111-112,211-212) may form a full bridge, a full bridge operated in a half bridge mode, or a half bridge.

    摘要翻译: 用于向负载(6,106,206)提供输出电流信号并且包括用于将输入电压信号转换为脉冲信号的晶体管(11-14,111-112,211-212)的第一电路(1,101,201)的电源电路(1-3,101-102,201-203) 具有用于接收脉冲信号和用于向负载(6,106,206)提供输出电流信号的谐振电路的电路(2,102,202)设置有用于控制第一电路(1,101,201)的第三电路(3,203),所述第三电路(3,203)包括发电机 (35-37),用于产生用于控制晶体管(11-14,111-112,211-212)的控制信号,用于减少输入电压信号和输出电流信号之间的相关性。 第三电路(3,203)根据输入电压信号提供控制信号,并独立于输出电流信号。 晶体管(11-14,111-112,211-212)可以形成全桥,半桥工作的全桥或半桥。

    Circuit-Arrangement for Modulating an Led and Method for Operating Same
    4.
    发明申请
    Circuit-Arrangement for Modulating an Led and Method for Operating Same 有权
    用于调制LED的电路布置和操作方法相同

    公开(公告)号:US20080265795A1

    公开(公告)日:2008-10-30

    申请号:US12097059

    申请日:2006-12-04

    IPC分类号: H05B41/36

    摘要: To achieve high modulation frequencies when modulating an LED, a circuit-arrangement for modulating at least one LED comprises a modulation-circuit (3) parallel to the LED, wherein the modulation-circuit (3) comprises in a series connection a switching device and a threshold device. In a method for operating an LED, the LED is modulated by alternating the switching device between a closed state and an open state.

    摘要翻译: 为了在调制LED时实现高调制频率,用于调制至少一个LED的电路装置包括平行于LED的调制电路(3),其中调制电路(3)包括串联连接开关装置和 阈值设备。 在用于操作LED的方法中,通过在闭合状态和打开状态之间交替切换装置来调制LED。

    Lighting system with a plurality of LEDs

    公开(公告)号:US09801243B2

    公开(公告)日:2017-10-24

    申请号:US13126470

    申请日:2009-11-09

    IPC分类号: H05B37/02 H05B33/08 H05B37/03

    摘要: A lighting system (1) comprises a power unit (20) for producing data-modulated current, and a light unit (10) receiving this current at its input and output terminals (11, 12).The light unit comprises two or more light modules (100A; 100B; 100C) connected in series.Each light module comprises: a LED string (110) of one or more LEDs (111, 112, 113) connected between module input and output terminals (101, 102), each LED having an associated controllable shunt switch (121, 122, 123) connected in parallel thereto; a module controller (190) for controlling the shunt switches, the module controller (190) having a input terminals (191, 192) connected to said module input and output terminals, respectively. The module controller demodulates the data and controls the switches on the basis of an action command contained therein, if an address information contained therein matches the unique controller address.

    CODED LIGHT EMITTING DEVICE
    6.
    发明申请
    CODED LIGHT EMITTING DEVICE 有权
    编码发光装置

    公开(公告)号:US20130272716A1

    公开(公告)日:2013-10-17

    申请号:US13822309

    申请日:2011-09-08

    IPC分类号: H04B10/116

    摘要: The invention relates to an illumination device for embedding data symbols of a data signal into a luminance output of the illumination device. The device includes a LED comprising at least two segments which have a common electrode and are individually controllable. The LED is configured to generate the luminance output in response to a drive signal. The device further includes a controller configured for switching one of the segments on or off in response to the data signal to embed data symbols of the data signal into the light output of the device. One advantage of such an approach is that the proposed device is compatible with conventional LED drivers since no additional electronics for modulating the drive signal are necessary, which enables simple implementation and reduced costs.

    摘要翻译: 本发明涉及一种用于将数据信号的数据符号嵌入照明装置的亮度输出中的照明装置。 该装置包括LED,其包括至少两个具有公共电极并且可单独控制的区段。 LED被配置为响应于驱动信号产生亮度输出。 该装置还包括控制器,其被配置为响应于该数据信号而切换该片段中的一个,以将该数据信号的数据符号嵌入该设备的光输出。 这种方法的一个优点是所提出的装置与常规LED驱动器兼容,因为不需要用于调制驱动信号的附加电子装置,这使得能够简单实现并降低成本。

    LIGHTING DEVICE
    7.
    发明申请
    LIGHTING DEVICE 有权
    照明设备

    公开(公告)号:US20090169215A1

    公开(公告)日:2009-07-02

    申请号:US12280707

    申请日:2007-02-20

    IPC分类号: H04B10/00 G09G3/30

    摘要: The invention relates to A method for a lighting device, in particular for a display device such as a LCD-TV, projector etc., generating radiation including at least visible light for illumination with at least one light-emitting element (1) being a LED (1) or an OLED, emitting radiation comprising an average light intensity for illumination purpose, a controller (2) coupled to the light-emitting element (1) modulating said radiation for a data transfer simultaneously to the illumination purpose, wherein the controller (2) is configured in such a way, that simultaneously data signals are transmitted via the generated radiation of said light-emitting element (1) and said modulation is not visible by an observer, wherein the data signals are transmitted to a detecting unit (3).

    摘要翻译: 本发明涉及一种用于照明装置的方法,特别是对于诸如LCD-TV,投影仪等的显示装置,产生包括至少一个可见光的辐射的照明装置,所述至少一个发光元件(1)是至少一个发光元件 LED(1)或OLED,其发射包括用于照明目的的平均光强度的辐射;耦合到发光元件(1)的控制器(2),其将所述辐射调制以同时进行照明目的的数据传输,其中所述控制器 (2)以这样的方式配置,即同时通过所产生的所述发光元件(1)的辐射传输数据信号,并且观察者不可见所述调制,其中数据信号被发送到检测单元( 3)。

    Light emitting diode circuit and arrangement and device
    8.
    发明授权
    Light emitting diode circuit and arrangement and device 有权
    发光二极管电路及布置及装置

    公开(公告)号:US08076872B2

    公开(公告)日:2011-12-13

    申请号:US12298795

    申请日:2007-04-20

    IPC分类号: H05B39/06

    摘要: Disclosed are light emitting diode circuits employing first sub-circuits including first light emitting diodes and connected in parallel with second sub-circuits including second light emitting diodes and switches for, in conducting states, switching on the second light emitting diodes and switching off the first light emitting diodes and for, in non-conducting states, switching off the second light emitting diodes and switching on the first light emitting diodes. The first sub-circuits and the second sub-circuits have different signal characteristics such as different minimum threshold voltages to be realized by using different kinds of light emitting diodes, by using different total numbers of serial light emitting diodes, or by adding threshold voltage elements to the first sub-circuits.

    摘要翻译: 公开了采用包括第一发光二极管的第一子电路并与第二子电路并联连接的发光二极管电路,第二子电路包括第二发光二极管和开关,用于在导通状态下接通第二发光二极管并切断第一发光二极管 在非导通状态下,关闭第二发光二极管并接通第一发光二极管。 第一子电路和第二子电路具有不同的信号特性,例如通过使用不同种类的发光二极管实现的不同的最小阈值电压,通过使用不同的总数量的串联发光二极管,或者通过添加阈值电压元件 到第一个子电路。

    ARRANGEMENT AND METHOD FOR DEACTIVATING ELECTRICAL ELEMENTS WHEN MALFUNCTIONING
    9.
    发明申请
    ARRANGEMENT AND METHOD FOR DEACTIVATING ELECTRICAL ELEMENTS WHEN MALFUNCTIONING 有权
    失效时电击元件的布置和方法

    公开(公告)号:US20090310269A1

    公开(公告)日:2009-12-17

    申请号:US12373792

    申请日:2007-07-10

    IPC分类号: H02H3/00

    CPC分类号: H05B33/083 H05B33/0824

    摘要: Arrangements (1) are provided with electrical elements (11,21) for, in a feeding mode, receiving feeding signals and, in a non-feeding mode, not receiving the feeding signals, and with circuits (12,22) for, in the feeding mode, detecting malfunctions of the electrical elements (11,21). The circuits (12,22) comprise active switches (13,23) for, in response to detection results, deactivating the electrical elements (11,21) in both modes, in other words in the feeding mode as well as the non-feeding mode. The electrical elements (11,21) for example comprise light emitting diodes, incandescent lights or loudspeakers etc. The active switches (13,23) for example comprise bistable micro-relays or semiconductor switches such as non-volatile power semiconductor switches such as one time programmable flash power MOSFETs etc. Preferably, the arrangements (1) are integrated arrangements.

    摘要翻译: 安排(1)设置有电气元件(11,21),用于在馈电模式下接收馈送信号,并且在非馈电模式下,不接收馈送信号,并且具有电路(12,22),用于 馈送模式,检测电气元件(11,21)的故障。 电路(12,22)包括有源开关(13,23),用于响应于检测结果,在两种模式下,换句话说,在馈电模式以及不馈电中,电激励元件(11,21) 模式。 电气元件(11,21)例如包括发光二极管,白炽灯或扬声器等。有源开关(13,23)例如包括双稳态微型继电器或诸如非易失性功率半导体开关的半导体开关,例如一个 时间可编程闪存功率MOSFET等。优选地,布置(1)是集成布置。

    Wireless Powering Device, an Energiable Load, a Wireless System and a Method For a Wireless Energy Transfer
    10.
    发明申请
    Wireless Powering Device, an Energiable Load, a Wireless System and a Method For a Wireless Energy Transfer 审中-公开
    无线供电装置,能量负载,无线系统和无线能量传输的方法

    公开(公告)号:US20070222426A1

    公开(公告)日:2007-09-27

    申请号:US11568473

    申请日:2005-04-28

    IPC分类号: H01F38/14

    摘要: A wireless resonant powering device 1 according to the invention comprises a first inductor winding 3, which is arranged to form a transformer 9 with the inductor winding 13 of the energizable load 11. The first inductor winding 3 is arranged to form a resonant circuit 5, which may comprise a suitable plurality of electric capacitances and coils. The components of the resonant circuit 5 are selected such that the magnetic energy received by the inductor winding 13 damps the energy flow in the resonant circuit so that the induced voltage in the inductor winding 13 is substantially constant and is independent of the magnetic coupling between the first inductor winding 3 and the inductor winding 13 at the operating frequency of the driving means 6. The resonant circuit is driven by the driving means 6, comprising a control unit 6c arranged to induce an alternating voltage between a first semiconductor switch 6a and a second semiconductor switch 6b. At the output of the transformer 9 an alternating voltage is generated, which is rectified to a DC-voltage by a diode rectifier, filtered by an output capacitance. The resonant circuit 5 is operable on its coupling independent point by the driving means 6. This figure schematically illustrates a situation, where a variable coupling between the first inductor winding 3 and the inductor winding 13 exists. The invention further relates to a wireless inductive powering device, an energizable load, a wireless system and a method for wireless power transfer.

    摘要翻译: 根据本发明的无线谐振供电装置1包括第一电感器绕组3,其被布置成与可激励负载11的电感器绕组13形成变压器9。 第一电感器绕组3被布置成形成谐振电路5,其可以包括适当的多个电容和线圈。 谐振电路5的组件被选择成使得由电感器绕组13接收的磁能阻止谐振电路中的能量流,使得电感器绕组13中的感应电压基本上是恒定的,并且独立于 第一电感绕组3和电感绕组13处于驱动装置6的工作频率。 谐振电路由驱动装置6驱动,包括布置成在第一半导体开关6a和第二半导体开关6b之间引起交流电压的控制单元6c。 在变压器9的输出端产生交流电压,其由二极管整流器整流为直流电压,由输出电容滤波。 谐振电路5可通过驱动装置6在其耦合独立点上操作。 该图示意性地示出了存在第一电感器绕组3和电感器绕组13之间的可变耦合的情况。 本发明还涉及无线感应供电装置,可激励负载,无线系统和无线电力传送方法。