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    • 1. 发明申请
    • METHOD FOR DIMMING A LIGHT GENERATNG SYSTEM FOR GENERATING LIGHT WITH A VARIABLE COLOR
    • 用于调制用于产生具有可变颜色的光的发光系统的方法
    • US20090179587A1
    • 2009-07-16
    • US12296942
    • 2007-04-04
    • Geert Willem Van Der VeenWijnand Johannes Rietman
    • Geert Willem Van Der VeenWijnand Johannes Rietman
    • H05B41/36
    • H05B41/3921
    • A method for dimming an illumination system (20) capable of emitting light (L) with a variable color is described. The illumination system (20) comprises three dimmable light sources (21, 22, 23) generating respective lights (L1, L2, L3) having respective, mutually different colors (C1, C2, C3). The method comprises the step of reducing the light intensities (I1, I2, I3) of the three dimmable light sources (21, 22, 23) while maintaining the color point until one of said light sources (21) reaches a lower dim limit (IMIN)—The method further comprises the step of maintaining the light intensity (I1) of said one light source (21) at its lower dim limit (IMIN) and reducing the light intensities (I2, I3) of the two other dimmable light sources (22, 23) in such a manner that the hue is maintained.
    • 描述了一种用于调光能够以可变颜色发光的照明系统(20)的方法。 照明系统(20)包括三个可调光源(21,22,23),其产生具有相应不同颜色(C1,C2,C3)的相应光(L1,L2,L3)。 该方法包括降低三个可调光光源(21,22,23)的光强度(I1,I2,I3)同时保持色点,直到所述光源(21)中的一个达到较低的暗限 IMIN) - 该方法还包括将所述一个光源(21)的光强度(I1)保持在其较低暗限(IMIN)并降低两个其它可调光源的光强度(I2,I3)的步骤 (22,23),以保持色调。
    • 2. 发明授权
    • Method for dimming a light generatng system for generating light with a variable color
    • 用于调光用于产生具有可变颜色的光的光发生系统的方法
    • US08084948B2
    • 2011-12-27
    • US12296942
    • 2007-04-04
    • Geert Willem Van Der VeenWijnand Johannes Rietman
    • Geert Willem Van Der VeenWijnand Johannes Rietman
    • H05B37/02H05B39/04H05B41/36G05F1/00G05F37/00
    • H05B41/3921
    • A method for dimming an illumination system (20) capable of emitting light (L) with a variable color is described. The illumination system (20) comprises three dimmable light sources (21, 22, 23) generating respective lights (L1, L2, L3) having respective, mutually different colors (C1, C2, C3). The method comprises the step of reducing the light intensities (I1, I2, I3) of the three dimmable light sources (21, 22, 23) while maintaining the color point until one of said light sources (21) reaches a lower dim limit (IMIN)—The method further comprises the step of maintaining the light intensity (I1) of said one light source (21) at its lower dim limit (IMIN) and reducing the light intensities (I2, I3) of the two other dimmable light sources (22, 23) in such a manner that the hue is maintained.
    • 描述了一种用于调光能够以可变颜色发光的照明系统(20)的方法。 照明系统(20)包括三个可调光源(21,22,23),其产生具有相应不同颜色(C1,C2,C3)的相应光(L1,L2,L3)。 该方法包括降低三个可调光光源(21,22,23)的光强度(I1,I2,I3)同时保持色点,直到所述光源(21)中的一个达到较低的暗限 IMIN) - 该方法还包括将所述一个光源(21)的光强度(I1)保持在其较低暗限(IMIN)并降低两个其它可调光源的光强度(I2,I3)的步骤 (22,23),以保持色调。
    • 3. 发明申请
    • DIMMING REGULATOR INCLUDING PROGRAMMABLE HYSTERETIC DOWN-CONVERTER FOR INCREASING DIMMING RESOLUTION OF SOLID STATE LIGHTING LOADS
    • 调节器包括可编程滞后转换器,用于增加固态照明负载的调光分辨率
    • US20130038234A1
    • 2013-02-14
    • US13642017
    • 2011-04-22
    • Geert Willem Van Der VeenHenricus Marius Joseph Maria Kahlman
    • Geert Willem Van Der VeenHenricus Marius Joseph Maria Kahlman
    • H05B37/02
    • H05B33/0815G09G3/3406H05B33/083
    • A system providing deep dimming of a solid state lighting (SSL) load includes a hysteretic down-converter, a shunt switch, a controller and a comparator. The down-converter controls average current value and amplitude of ripple of SSL current using amplitude modulation (AM) dimming control. The shunt switch controls magnitude of the SSL current using pulse width modulation (PWM) dimming control. The controller generates first and second PWM signals for controlling upper and lower current levels at which the down-converter operates based on the SSL current and voltage across the SSL load, and generates a third PWM signal for controlling the shunt switch based on a dimming level load set by a dimmer. The comparator circuit compares first and second analog signals corresponding to the first and second PWM signals with the SSL current, and drives the down-converter in response to the comparison. The SSL current is based on both the AM dimming control and the PWM dimming control.
    • 提供固态照明(SSL)负载的深度调光的系统包括滞后下变频器,分流开关,控制器和比较器。 下变频器使用调幅(AM)调光控制来控制SSL电流的平均电流值和纹波幅度。 分流开关使用脉冲宽度调制(PWM)调光控制来控制SSL电流的大小。 控制器产生第一和第二PWM信号,用于根据SSL负载上的SSL电流和电压控制下转换器工作的上限和下限电流水平,并产生第三个PWM信号,用于根据调光级别控制分流开关 负载由调光器设定。 比较器电路将与第一和第二PWM信号相对应的第一和第二模拟信号与SSL电流进行比较,并响应于比较驱动下变频器。 SSL电流基于AM调光控制和PWM调光控制。
    • 7. 发明申请
    • LIGHTING DEVICE WITH A LED USED FOR SENSING
    • 具有用于感测的LED的照明装置
    • US20100117543A1
    • 2010-05-13
    • US12595646
    • 2008-04-15
    • Geert Willem Van Der VeenJohan Wilhelmus Hermanus KuppenMarco Foggi
    • Geert Willem Van Der VeenJohan Wilhelmus Hermanus KuppenMarco Foggi
    • H05B37/02
    • H05B33/0872H05B33/0818
    • A lighting device (10) comprises a LED (4), a driver (3), and a controller (2) which regularly switches from a drive state to a measuring state and back. In the measuring state, the controller controls the driver such that the driver does not generate any LED current. The LED produces a measuring signal (Sm) indicating a measured light level. The controller processes the measuring signal received from the LED, and makes a decision on the desired light output of the LED. In the drive state, the controller controls the driver such that the average light output produced by the LED corresponds to the desired light output as determined in the measuring state. In a possible embodiment, the driver generates a nominal LED current INOM, and sets the duration (τ 1) of the drive state on the basis of the desired light output of the LED as determined in the measuring state.
    • 照明装置(10)包括LED(4),驱动器(3)和控制器(2),其从驱动状态定期地切换到测量状态和返回。 在测量状态下,控制器控制驱动器,使得驱动器不产生任何LED电流。 LED产生指示测量的光电平的测量信号(Sm)。 控制器处理从LED接收到的测量信号,并决定LED的所需光输出。 在驱动状态下,控制器控制驱动器,使得由LED产生的平均光输出对应于在测量状态下确定的期望的光输出。 在可能的实施例中,驱动器产生标称LED电流INOM,并且基于在测量状态中确定的LED的期望光输出来设置驱动状态的持续时间(τ1)。
    • 8. 发明授权
    • Fluorescent tube lamp drive circuit
    • 荧光管灯驱动电路
    • US07652437B2
    • 2010-01-26
    • US11570899
    • 2005-06-23
    • Arnold Willem BuijGeert Willem Van Der Veen
    • Arnold Willem BuijGeert Willem Van Der Veen
    • H05B41/36
    • H05B41/295Y10S315/05
    • A drive circuit for driving a fluorescent tube lamp comprises a variable frequency oscillator generating a lamp drive frequency, a resonant drive circuit driving the lamp with the lamp drive frequency, and a control unit for driving the variable frequency of the latter under control of a synchronization signal. When a pre-heating frequency is generated by the variable frequency oscillator, the lamp is pre-heated while when an illumination drive frequency is generated, the lamp ignites and operates in its illuminated state. The control unit comprises a transition controller for at an ignition of the lamp limiting the drive frequency to an ultimate ignition frequency, and only enabling transition from the ultimate ignition frequency to the illumination drive frequency after an ignition delay time.
    • 用于驱动荧光管灯的驱动电路包括产生灯驱动频率的可变频率振荡器,用灯驱动频率驱动灯的谐振驱动电路,以及用于在同步控制下驱动后者的可变频率的控制单元 信号。 当由可变频率振荡器产生预热频率时,灯被预热,而当产生照明驱动频率时,灯点亮并在其照亮状态下工作。 控制单元包括一个过渡控制器,用于点灯时将驱动频率限制在极限点火频率,并且仅在点火延迟时间之后能够从最终点火频率转换到照明驱动频率。
    • 9. 发明申请
    • Fluorescent Tube Lamp Drive Circuit
    • 荧光灯管驱动电路
    • US20080303454A1
    • 2008-12-11
    • US11570899
    • 2005-06-23
    • Arnold Willem BuijGeert Willem Van Der Veen
    • Arnold Willem BuijGeert Willem Van Der Veen
    • H05B41/36
    • H05B41/295Y10S315/05
    • A drive circuit for driving a fluorescent tube lamp comprises a variable frequency oscillator generating a lamp drive frequency, a resonant drive circuit driving the lamp with the lamp drive frequency, and a control unit for driving the variable frequency of the latter under control of a synchronization signal. When a pre-heating frequency is generated by the variable frequency oscillator, the lamp is pre-heated while when an illumination drive frequency is generated, the lamp ignites and operates in its illuminated state. The control unit comprises a transition controller for at an ignition of the lamp limiting the drive frequency to an ultimate ignition frequency, and only enabling transition from the ultimate ignition frequency to the illumination drive frequency after an ignition delay time.
    • 用于驱动荧光管灯的驱动电路包括产生灯驱动频率的可变频率振荡器,用灯驱动频率驱动灯的谐振驱动电路,以及用于在同步控制下驱动后者的可变频率的控制单元 信号。 当由可变频率振荡器产生预热频率时,灯被预热,而当产生照明驱动频率时,灯点亮并在其照亮状态下工作。 控制单元包括一个过渡控制器,用于点灯时将驱动频率限制在极限点火频率,并且仅在点火延迟时间之后能够从最终点火频率转换到照明驱动频率。