Device with light-emitting diode circuits
    1.
    发明授权
    Device with light-emitting diode circuits 有权
    具有发光二极管电路的设备

    公开(公告)号:US08466627B2

    公开(公告)日:2013-06-18

    申请号:US13055517

    申请日:2009-07-22

    IPC分类号: H05B37/02

    摘要: Devices (1) have branches (20,30) for receiving AC voltages. First branches (20) comprise first light-emitting diode circuits (21) and first arrangements for phase-shifting first currents flowing through the first light-emitting diode circuits (21) with respect to the AC voltages. Second branches (30) comprise second light-emitting diode circuits (31) and do not comprise second arrangements for phase-shifting second currents flowing through the second light-emitting diode circuits (31) with respect to the AC voltages. As a result, an overall flicker index of the device (1) will be smaller than individual flicker indices of the light-emitting diode circuits (21,31). The first arrangements may comprise capacitors (22) coupled serially to the first light-emitting diode circuits (21). The branches (20,30) may further comprise resistors (23,33) coupled serially to or forming part of the light-emitting diode circuits (21,31). The light-emitting diode circuits (21,31) generate light in response to positive and negative halves of the AC voltages.

    摘要翻译: 设备(1)具有用于接收AC电压的分支(20,30)。 第一分支(20)包括第一发光二极管电路(21)和用于相对于交流电压相移流过第一发光二极管电路(21)的第一电流的第一布置。 第二分支(30)包括第二发光二极管电路(31),并且不包括用于相对于交流电压相移流过第二发光二极管电路(31)的第二电流的第二布置。 结果,器件(1)的整体闪烁指数将小于发光二极管电路(21,31)的单个闪烁指数。 第一布置可以包括串联连接到第一发光二极管电路(21)的电容器(22)。 分支(20,30)还可以包括串联地耦合到或形成发光二极管电路(21,31)的一部分的电阻器(23,33)。 发光二极管电路(21,31)响应于交流电压的正负两半而产生光。

    DRIVING A LIGHT-EMITTING DIODE
    2.
    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

    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。

    Driving device and method for driving a load, in particular an LED assembly
    4.
    发明授权
    Driving device and method for driving a load, in particular an LED assembly 有权
    用于驱动负载的驱动装置和方法,特别是LED组件

    公开(公告)号:US08917027B2

    公开(公告)日:2014-12-23

    申请号:US14007149

    申请日:2012-03-28

    IPC分类号: H05B33/08

    摘要: Driver device and a corresponding driving method for driving a load, in particular an LED assembly comprising one or more LEDs. To provide a better performance, better cost-efficiency, improved power factor and reduced losses, a driver device (1,1′, 2, 2′) is provided comprising a rectifier unit (10) for rectifying a received AC supply voltage (VS), load terminals (20) for providing a drive voltage (VL) and/or a drive current (IL) for driving said load, a capacitive storage unit (30) coupled between said rectifier unit and said load terminals for storing electrical energy provided by said rectifier unit and providing electrical energy to said load, and a bridge switching unit (40) coupled between said rectifier unit and said load for switching said capacitive storage unit into a load current path from said rectifier unit to said load terminals with a desired polarity and for switching said capacitive storage unit out of said load current path.

    摘要翻译: 驱动装置和用于驱动负载的相应驱动方法,特别是包括一个或多个LED的LED组件。 为了提供更好的性能,更好的成本效率,更好的功率因数和更低的损耗,提供了一种驱动装置(1,1',2,2'),其包括整流单元(10),用于整流接收的AC电源电压 ),用于提供用于驱动所述负载的驱动电压(VL)和/或驱动电流(IL))的负载端子(20),耦合在所述整流器单元和所述负载端子之间以用于存储所提供的电能的电容性存储单元(30) 通过所述整流单元向所述负载提供电能,以及耦合在所述整流单元和所述负载之间的桥式开关单元(40),用于将所述电容性存储单元切换到从所述整流单元到所述负载端子的负载电流路径, 并且用于将所述电容性存储单元从所述负载电流路径切换。

    DRIVER DEVICE AND DRIVING METHOD FOR DRIVING A LOAD, IN PARTICULAR AN LED UNIT
    5.
    发明申请
    DRIVER DEVICE AND DRIVING METHOD FOR DRIVING A LOAD, IN PARTICULAR AN LED UNIT 有权
    用于驱动负载,特别是LED单元的驱动装置和驱动方法

    公开(公告)号:US20140159611A1

    公开(公告)日:2014-06-12

    申请号:US14235302

    申请日:2012-07-25

    IPC分类号: H05B33/08

    摘要: The present invention relates to a driver device and a corresponding driving method for driving a load (22), in particular an LED unit, said driver device comprising power input terminals (51, 52) for receiving a periodic supply voltage from an external power supply potentially including a dimmer for dimming said periodic supply voltage,power output terminals (53, 54) for providing a drive voltage and/or drive current for driving a load (22), a power stage (70a, 70b, 70c, 70d) coupled between the power input terminals and the power output terminals for controlling an input current received from said power input terminals to draw a high power from said external power supply in a first mode or to draw a low or no power from said external power supply in a second mode, said high power being higher than the power required for driving said load and said low power being lower than the power required for driving said load, wherein said power stage controls said input current to be in the second mode only for a percentage of half cycle periods of a number of subsequent half cycle periods of said supply voltage, and for providing said drive voltage and/or drive current to said power output terminals in said first mode, and an energy storage unit (90) coupled to said power stage for storing electrical energy provided at said power input terminals in said first mode and for providing stored electrical energy to said load via said power output terminals in said second mode.

    摘要翻译: 本发明涉及用于驱动负载(22),特别是LED单元的驱动器装置和相应的驱动方法,所述驱动器装置包括用于从外部电源接收周期性电源电压的电力输入端子(51,52) 潜在地包括用于调光所述周期性电源电压的调光器,用于提供用于驱动负载(22)的驱动电压和/或驱动电流的功率输出端子(53,54),耦合的功率级(70a,70b,70c,70d) 在所述电力输入端子和所述电力输出端子之间,用于控制从所述电力输入端子接收的输入电流,以在第一模式中从所述外部电源抽取高功率,或者从所述外部电源中抽取低电力或不用电力 第二模式,所述高功率高于驱动所述负载所需的功率,所述低功率低于驱动所述负载所需的功率,其中所述功率级将所述输入电流控制在所述第二模式中 nd模式仅用于所述电源电压的后续半周期数量的半周期百分比的百分比,并且用于在所述第一模式中向所述功率输出端提供所述驱动电压和/或驱动电流,以及能量存储单元 90),其耦合到所述功率级,用于存储在所述第一模式中提供在所述电力输入端处的电能,并且用于在所述第二模式中经由所述功率输出端将所存储的电能提供给所述负载。

    DRIVING DEVICE AND METHOD FOR DRIVING A LOAD, IN PARTICULAR AN LED ASSEMBLY
    6.
    发明申请
    DRIVING DEVICE AND METHOD FOR DRIVING A LOAD, IN PARTICULAR AN LED ASSEMBLY 有权
    驱动装置和驱动装置的方法,特别是LED组件

    公开(公告)号:US20140049174A1

    公开(公告)日:2014-02-20

    申请号:US14007149

    申请日:2012-03-28

    IPC分类号: H05B33/08

    摘要: Driver device and a corresponding driving method for driving a load, in particular an LED assembly comprising one or more LEDs. To provide a better performance, better cost-efficiency, improved power factor and reduced losses, a driver device (1,1′, 2, 2′) is provided comprising a rectifier unit (10) for rectifying a received AC supply voltage (VS), load terminals (20) for providing a drive voltage (VL) and/or a drive current (IL) for driving said load, a capacitive storage unit (30) coupled between said rectifier unit and said load terminals for storing electrical energy provided by said rectifier unit and providing electrical energy to said load, and a bridge switching unit (40) coupled between said rectifier unit and said load for switching said capacitive storage unit into a load current path from said rectifier unit to said load terminals with a desired polarity and for switching said capacitive storage unit out of said load current path.

    摘要翻译: 驱动装置和用于驱动负载的相应驱动方法,特别是包括一个或多个LED的LED组件。 为了提供更好的性能,更好的成本效率,更好的功率因数和更低的损耗,提供了一种驱动装置(1,1',2,2'),其包括整流单元(10),用于整流接收的AC电源电压 ),用于提供用于驱动所述负载的驱动电压(VL)和/或驱动电流(IL))的负载端子(20),耦合在所述整流器单元和所述负载端子之间以用于存储所提供的电能的电容性存储单元(30) 通过所述整流单元向所述负载提供电能,以及耦合在所述整流单元和所述负载之间的桥式开关单元(40),用于将所述电容性存储单元切换到从所述整流单元到所述负载端子的负载电流路径, 并且用于将所述电容性存储单元从所述负载电流路径切换。

    Illumination device comprising multiple LEDs
    7.
    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

    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。

    Power Supply System for Electronic Loads
    8.
    发明申请
    Power Supply System for Electronic Loads 有权
    电子负载供电系统

    公开(公告)号:US20120146549A1

    公开(公告)日:2012-06-14

    申请号:US13391035

    申请日:2010-08-25

    IPC分类号: H05B37/02 H02J3/00

    摘要: The invention relates to a power supply system and a method for providing a load (L) with electrical power from either a first or a second AC grid source (10L, 10H) that supply different first and second AC voltages, respectively. In a particular example, said grid sources may belong to the US and the European mains, respectively, and the load may be a lamp with mains compatible LEDs (Ch1-Ch4). The power supply system comprises a first and a second connector device (30L, 30H) for connecting a converter circuit (20) to the first or the second AC grid source (10L, 10H), respectively. Moreover, the second connector device (30H) comprises a transformation circuit (D1-D4) for transforming the second AC voltage such that it yields a similar output voltage of the converter circuit (20) as the first AC voltage. In a particular example, the converter circuit (20) may comprise a rec tifier (D5-D8, C1, C2) with voltage doubling function, and the second connector device (30H) may comprise a rectifier (D1-D4) while the first connector device (30L) is a simple cable.

    摘要翻译: 本发明涉及一种电源系统和一种从负载(L)提供来自分别提供不同的第一和第二AC电压的第一或第二AC电网源(10L,10H)的电力的方法。 在一个具体的示例中,所述电网源可以分别属于美国和欧洲电源,并且负载可以是具有电源兼容LED(Ch1-Ch4)的灯。 电源系统包括分别用于将转换器电路(20)连接到第一或第二AC电网源(10L,10H)的第一和第二连接器装置(30L,30H)。 此外,第二连接器装置(30H)包括用于变换第二AC电压的变换电路(D1-D4),使得其产生与第一AC电压相似的转换器电路(20)的输出电压。 在特定示例中,转换器电路(20)可以包括具有加倍功能的校准器(D5-D8,C1,C2),并且第二连接器装置(30H)可以包括整流器(D1-D4),而第一 连接器装置(30L)是简单的电缆。

    LAMP ASSEMBLY
    9.
    发明申请
    LAMP ASSEMBLY 有权
    灯组件

    公开(公告)号:US20120098404A1

    公开(公告)日:2012-04-26

    申请号:US13379052

    申请日:2010-06-14

    IPC分类号: H01J5/16

    摘要: A lamp assembly (1) comprises at least a light source (8) and a reflector for reflecting light from the light source (8). The reflector is positionable with respect to the light source (8) in at least a first position and a second position to obtain a spot-like light emission in the first position and a more or less omnidirectional light emission, in the second position, of the light emitted by the lamp assembly (1). The lamp assembly (1) comprises a reflective layer (7). In the first position of the reflector at least part of the light is reflected by the reflector as well as by the reflective layer (7). In the second position of the reflector at least part of the light is reflected by the reflector and passes along the reflective layer (7).

    摘要翻译: 灯组件(1)至少包括光源(8)和用于反射来自光源(8)的光的反射器。 反射器可以在至少第一位置和第二位置处相对于光源(8)定位,以在第一位置获得斑点状发光,并且在第二位置中或多或少的全向光发射在第二位置 由灯组件(1)发射的光。 灯组件(1)包括反射层(7)。 在反射体的第一位置,至少一部分光被反射器以及反射层(7)反射。 在反射体的第二位置,至少一部分光被反射器反射并沿着反射层(7)传播。