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    • 2. 发明申请
    • HEAT MANAGING DEVICE
    • 热管理设备
    • US20120092870A1
    • 2012-04-19
    • US13380535
    • 2010-06-21
    • Aldo TralliTheodoor Cornelis TreurnietRalph Kurt
    • Aldo TralliTheodoor Cornelis TreurnietRalph Kurt
    • F21V29/02
    • F21V29/717F21K9/00F21K9/23F21S45/43F21V29/505F21V29/677F21V29/713F21V29/74F21V29/773F21V29/89F21Y2113/13F21Y2115/10
    • It is presented a heat managing device for a light source (100) which combines heat managing by means of a heat sink, heat pipes and forced convection, thereby achieving efficient cooling of high power lighting applications. The heat managing device comprises a heat spreading element (104) having an upper side arranged for thermally connecting to at least one light source (106). The light emitted from the light source is controlled by secondary optics (103). The heat managing device comprises a heat sink which is thermally connected to the heat spreader, and to a first set of heat pipes which is thermally connected to the heat spreader. At least a portion of the heat sink is arranged to encompass the secondary optics. The heat pipes are embedded in the heat sink. Further, a fan for providing forced air convection at the heat sink is comprised in the device. A corresponding lighting device is also presented.
    • 提出了一种用于光源(100)的热管理装置,其结合了通过散热器,热管和强制对流的热管理,从而实现高功率照明应用的有效冷却。 热量管理装置包括一个散热元件(104),其具有被布置成热连接到至少一个光源(106)的上侧。 从光源发射的光由二次光学器件(103)控制。 热管理装置包括热连接到散热器的散热器,以及热连接到散热器的第一组热管。 散热器的至少一部分布置成包围次级光学器件。 热管嵌入散热器。 此外,在该装置中包括用于在散热器处提供强制空气对流的风扇。 还提出了相应的照明装置。
    • 4. 发明授权
    • LED light source
    • US09357607B2
    • 2016-05-31
    • US14124733
    • 2012-06-04
    • Henricus Marius Joseph Maria KahlmanRalph Kurt
    • Henricus Marius Joseph Maria KahlmanRalph Kurt
    • H05B37/04H05B33/08
    • H05B33/0845H05B33/0812H05B33/0815H05B33/083H05B33/0842H05B33/0851H05B37/02Y02B20/347Y02B20/348
    • A LED light source comprises—a full bridge rectifier equipped with a first input terminal and a second input terminal for coupling to output terminals of the phase cut dimmer, —a series arrangement comprising N LED loads, a first and second end of said series arrangement being coupled to a first output terminal and a second output terminal of the full bridge rectifier respectively, —control means for during a period of the rectified AC supply voltage subsequently making the LED loads comprised in the first series arrangement carry a current, one by one and in dependency of the momentary amplitude of the rectified AC supply voltage when the momentary amplitude increases and for subsequently making the LED loads stop carrying a current, one by one, and in dependency of the momentary amplitude of the rectified AC supply voltage when the momentary amplitude decreases, said control means controlling the current through the LED loads at zero when the output voltage of the phase cut dimmer equals zero and controlling the current through the LED loads at a value that is independent from the phase angle of the phase cut dimmer when the output voltage of the phase cut dimmer differs from zero Volt. In order to make the LED light source compatible with a phase cut dimmer, the LED light source is further equipped with—a switchable bleeder current source coupled between the first and second output terminal of the full bridge rectifier, —a latch coupled between the first and second output terminals of the full rectifier bridge and comprising a series arrangement of a resistor and a capacitor to prevent the current through the dimmer from crossing zero after a leading edge generated by the phase cut dimmer, in case the phase cut dimmer is a leading edge phase cut dimmer, —a unidirectional element arranged in series with the capacitor for preventing discharging of the capacitor via the LED loads or the adjustable bleeder current source, and—a clamp circuit coupled to the capacitor and comprising a current source for discharging the capacitor and providing a low ohmic path for the dimmer current when the dimmer is off.
    • 5. 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。
    • 7. 发明申请
    • METHOD AND DEVICE FOR LIGHTING A SPACE USING AN LED STRING
    • 使用LED灯照明空间的方法和装置
    • US20130342120A1
    • 2013-12-26
    • US14004745
    • 2012-03-12
    • Martinus Petrus CreusenRalph Kurt
    • Martinus Petrus CreusenRalph Kurt
    • H05B33/08
    • H05B33/083H05B33/0809H05B33/0842
    • In a method of lighting at least part of a space, a light emitting diode (LED) string is used. The LED string comprises a first LED segment and at least one further LED segment, which are connected in series, each LED segment comprising at least one LED. The LED string is powered by a rectified AC voltage. The first LED segment is powered when the rectified AC voltage is above a first voltage level, and the first LED segment and the further LED segment are powered when the rectified AC voltage is above a second voltage level higher than the first voltage level. The first LED segment is arranged to radiate light to a first volume of the space, and the further LED segment is arranged to radiate light to a second volume of the space, the first volume being at least partly different from the second volume. The first volume may at least partly overlap the second volume.
    • 在照亮至少一部分空间的方法中,使用发光二极管(LED)串。 LED串包括串联连接的第一LED段和至少一个另外的LED段,每个LED段包括至少一个LED。 LED串由整流的交流电压供电。 当整流的AC电压高于第一电压电平时,第一LED段被供电,并且当整流的AC电压高于高于第一电压电平的第二电压电平时,第一LED段和另外的LED段被供电。 第一LED区段被布置成将光辐射到空间的第一体积,并且另外的LED区段被布置成将光辐射到空间的第二体积,第一体积与第二体积至少部分不同。 第一体积可以至少部分地与第二体积重叠。