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    • 3. 发明授权
    • Electronic ballast-compatible lighting driver for light-emitting diode lamp
    • 用于发光二极管灯的电子镇流器兼容照明驱动器
    • US09357600B2
    • 2016-05-31
    • US14237913
    • 2012-08-02
    • Haimin Tao
    • Haimin Tao
    • H05B33/08
    • H05B33/0815H05B33/0803H05B33/0824H05B33/083Y02B20/383
    • A lighting driver includes a rectifier having an input connected to receive AC electrical power from an electronic ballast and having an output connected to supply a current to a plurality of light emitting diodes (LEDs) arranged in series with each other in a string, and a switching device disposed at the output of the rectifier and configured to receive a switching control signal and in response thereto to execute a switching operation to modulate an amount of power supplied to the plurality of LEDs so as to cause an average of the power supplied to the plurality of LEDs to be equal to a target power level. A current sensor may be provided to sense the current, and a controller configured to control the switching operation of the switching device in response to the sensed current.
    • 照明驱动器包括整流器,其具有连接到输入端的输入端以接收来自电子镇流器的AC电力,并且具有输出端,其连接以将电流提供给串联设置的多个发光二极管(LED),并且 开关装置,其设置在整流器的输出端并且被配置为接收开关控制信号,并响应于此执行开关操作以调制提供给多个LED的功率量,以便提供给 多个LED等于目标功率电平。 可以提供电流传感器来感测电流,并且控制器被配置为响应于感测的电流来控制开关器件的开关操作。
    • 4. 发明授权
    • LED light source
    • LED光源
    • US09113524B2
    • 2015-08-18
    • US14006979
    • 2012-03-19
    • Ralph KurtHaimin TaoMartinus Petrus Creusen
    • Ralph KurtHaimin TaoMartinus Petrus Creusen
    • H05B37/02H05B33/08
    • H05B33/083
    • A series arrangement of LED loads (LP1-LP4) is coupled between output terminals of a rectifier having its input terminals coupled to a mains supply supplying a low frequency AC voltage. Control means render the LED loads conductive one by one, when the amplitude of the supply voltage increases, and non-conductive one by one when the amplitude of the supply voltage decreases. The first LED load (LP1, LP2) has a forward voltage that is substantially higher than that of the other LED loads. As a consequence, the LED utilization is comparatively high, thus allowing the LED loads used in the series arrangement to be comparatively cheap.
    • LED负载(LP1-LP4)的串联布置耦合在整流器的输出端子之间,其输入端子耦合到提供低频AC电压的电源。 当电源电压的幅度增加时,控制装置使LED负载一个接一个,当电源电压的幅度减小时,LED逐一导通。 第一个LED负载(LP1,LP2)具有远高于其他LED负载的正向电压。 因此,LED利用率相对较高,从而允许串联装置中使用的LED负载相当便宜。
    • 5. 发明授权
    • Driving device and method for driving a load, in particular an LED assembly
    • 用于驱动负载的驱动装置和方法,特别是LED组件
    • US08917027B2
    • 2014-12-23
    • US14007149
    • 2012-03-28
    • Harald Josef Gunther RadermacherPieter Gerrit BlankenYifeng QiuHaimin TaoRonald Van LangeveldeRalph Kurt
    • Harald Josef Gunther RadermacherPieter Gerrit BlankenYifeng QiuHaimin TaoRonald Van LangeveldeRalph Kurt
    • H05B33/08
    • H05B33/0815H05B33/0821H05B33/083H05B33/0851Y02B20/348
    • 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.
    • 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。
    • 8. 发明授权
    • Interface circuit for a light source
    • 光源接口电路
    • US09301354B2
    • 2016-03-29
    • US14008580
    • 2012-03-27
    • Christoph LoefHaimin Tao
    • Christoph LoefHaimin Tao
    • H05B33/08
    • H05B33/0818H05B33/0809H05B33/0824H05B33/0896Y02B20/383Y02B20/386
    • An interface circuit is disclosed for operating a light source from an electronic fluorescent driver. In one example, the interface circuit comprises input terminals for connection to lamp connection terminals of the electronic fluorescent lamp driver, a first string interconnecting a first pair of input terminals, a second string interconnecting a second pair of input terminals, a third string interconnecting a first terminal of the first string and a second terminal of the second string and comprising a rectifier, output terminals of said rectifier being coupled during operation to the light source. When a light source is operated making use of the interface circuit, a proper emulation of a fluorescent lamp is obtained.
    • 公开了一种用于操作来自电子荧光驱动器的光源的接口电路。 在一个示例中,接口电路包括用于连接到电子荧光灯驱动器的灯连接端子的输入端子,互连第一对输入端子的第一串,连接第二对输入端子的第二串联, 第一串的第一端子和第二串的第二端子并且包括整流器,所述整流器的输出端在操作期间被耦合到光源。 当使用接口电路操作光源时,获得了适当的荧光灯的仿真。
    • 9. 发明申请
    • LIGHT GENERATING DEVICE
    • 发光装置
    • US20150061499A1
    • 2015-03-05
    • US14117391
    • 2012-05-11
    • Christian HattrupHenricus Marius Joseph Maria KahlmanRalph KurtGeorg SauerländerBertrand Johan Edward HonteleHaimin Tao
    • Christian HattrupHenricus Marius Joseph Maria KahlmanRalph KurtGeorg SauerländerBertrand Johan Edward HonteleHaimin Tao
    • H05B33/08
    • H05B33/0824H05B33/0809H05B33/0815H05B33/083Y02B20/347
    • A light generating device (1) is provided with at least a voltage input (21) adapted for receiving a variable voltage, at least three LED circuits (10), coupled with said voltage input (21), wherein each LED circuit (10) comprises a LED unit (14) and controllable current regulator (15) to control the current through said LED circuit (10). The light generating device (1) further comprises a controllable switch matrix (30) comprising a plurality of switches (25, 26, 27), said switch matrix (30) is configured to operate in at least three different switching modes and a controller (50), connected at least with said switch matrix (30), configured to determine said variable operating voltage and to control the switching mode of said switch matrix (30) in dependence of the determined operating voltage. To provide an efficient operation of such device (1) with a variable operating voltage, such as an AC voltage, in a first switching mode, said LED units (10) are connected parallel to each other, in a second switching mode, at least two of said LED units (10) are connected in series and in a third switching mode, said LED units 10 are connected in series with each other.
    • 光发生装置(1)至少设置有用于接收可变电压的电压输入(21),与所述电压输入(21)耦合的至少三个LED电路(10),其中每个LED电路(10) 包括LED单元(14)和可控电流调节器(15),以控制通过所述LED电路(10)的电流。 光产生装置(1)还包括可控开关矩阵(30),其包括多个开关(25,26,27),所述开关矩阵(30)被配置为以至少三种不同的开关模式操作,以及控制器 至少与所述开关矩阵(30)相连接,被配置为确定所述可变工作电压并且根据所确定的工作电压来控制所述开关矩阵(30)的开关模式。 为了在第一开关模式中提供具有诸如AC电压的可变工作电压的这种装置(1)的有效操作,所述LED单元(10)以第二开关模式至少并联连接 两个所述LED单元(10)串联连接,在第三开关模式下,所述LED单元10彼此串联连接。