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    • 5. 发明授权
    • Variable light-level production using different dimming modes for different light-output ranges
    • 可变光级生产使用不同的调光模式为不同的光输出范围
    • US08487540B2
    • 2013-07-16
    • US12746945
    • 2008-12-12
    • Jacob DijkstraWilhelmus EttesSchelte HeeringaPetrus Johannes Bremer
    • Jacob DijkstraWilhelmus EttesSchelte HeeringaPetrus Johannes Bremer
    • H05B37/02
    • H05B41/3921H05B41/295
    • A wake-up lighting device is described, comprising a gas discharge lamp (10) and a lamp driver (1; 2) comprising a power source (100) capable of generating spaced-apart current bursts (51) of alternating lamp current (I). The wake-up lighting device is capable of operating in an off-mode in which no lamp current is generated, and is adapted to switch from its off-mode to a wake-up mode in which the power source (100) operates to:—initially generate an alternating lamp current (I) with a minimum duty cycle value (ΔT) and a reduced current amplitude (IR) close to zero;—subsequently gradually increase the current amplitude while keeping the duty cycle (Δ) constant at the minimum duty cycle value (ΔT), until the current amplitude reaches a nominal current amplitude (IM);—subsequently gradually increase the duty cycle (Δ) while keeping the current amplitude constant at the nominal current amplitude (IM).
    • 描述了一种唤醒照明装置,包括气体放电灯(10)和灯驱动器(1,2),灯驱动器(1,2)包括能够产生交替灯电流(I)的间隔开的电流脉冲串(51)的电源(100) )。 唤醒照明装置能够在不产生灯电流的关闭模式下工作,并且适于从电源(100)操作的其截止模式切换到唤醒模式,以便: - 最终产生具有最小占空比值(DeltaT)和接近零的减小电流幅度(IR)的交流灯电流(I);随后逐渐增加电流振幅,同时保持占空比(Delta)恒定在最小值 占空比值(DeltaT),直到电流幅度达到标称电流幅度(IM); - 随后逐渐增加占空比(Delta),同时保持电流幅度恒定在额定电流幅度(IM)。
    • 7. 发明申请
    • DRIVING CIRCUIT FOR DRIVING A PLURALITY OF LIGHT SOURCES ARRANGED IN A SERIES CONFIGURATION
    • 用于驱动一系列配置中安装的多个光源的驱动电路
    • US20100181924A1
    • 2010-07-22
    • US12602682
    • 2008-06-04
    • Roel Van WoudenbergPetrus Johannes Bremer
    • Roel Van WoudenbergPetrus Johannes Bremer
    • H05B37/02H05B39/02
    • G09G3/342G09G2310/024G09G2320/0209H05B33/083H05B33/0848
    • A driving circuit (10) for driving a plurality of light sources (1) arranged in a series configuration (2) is described. A controllable current source (20) is connected to said series arrangement of light sources. Each light source (1(i)) is bridged by a corresponding controllable switch (25(i)). A controller (30) controls the operation of the current source (20) to set a current level and controls the operative states of the respective switches (25(i)) in order to individually control the light output of the corresponding light sources. The controller (30) is capable of individually setting the switch control signals (SL(O) for the respective switches (25(i)). Especially, the controller (30) is capable of boosting the light output of one selected light source (1(x)) while maintaining the light output of other light sources in the series arrangement (2). To this end, the current level is increased while the other light sources are dimmed.
    • 描述用于驱动以串联配置(2)布置的多个光源(1)的驱动电路(10)。 可控电流源(20)连接到所述光源串联装置。 每个光源(1(i))由对应的可控开关(25(i))桥接。 控制器(30)控制电流源(20)的操作以设定电流电平并控制各个开关(25(i))的工作状态,以分别控制对应的光源的光输出。 控制器(30)能够分别设定各开关(25(i))的开关控制信号(SL(O)),特别是控制器30能够提升一个选择的光源的光输出 1(x)),同时保持串联装置(2)中的其它光源的光输出,为此,电流水平增加,而其他光源变暗。
    • 8. 发明申请
    • DRIVING LIGHT EMITTING DIODES
    • 驱动发光二极管
    • US20100102732A1
    • 2010-04-29
    • US12593308
    • 2008-03-31
    • Henricus Marie PeetersRoel Van WoudenbergPetrus Johannes Bremer
    • Henricus Marie PeetersRoel Van WoudenbergPetrus Johannes Bremer
    • H05B37/02
    • H05B33/0857H05B33/0815H05B33/083
    • The present invention relates to a driver for a string (STi) of series arranged light emitting diodes (D1i, D2i, D3i) of which at least two emit light having different spectra. The driver comprises a main power supply (PAi) which has outputs coupled across the string (STi) to supply a main current (IAi) to the string (STi). A secondary power supply (PBi) is coupled to at least one of junctions (J1i) between successive light emitting diodes (D1i, D2i) in the string (STi) to supply or withdraw a delta current (IBi) from the junction (J1i). The delta current (IBi) is at least a factor 5 smaller than the main current (IAi). A controller (CO) controls the secondary power supply (PBi) to generate the delta current (IBi) to obtain a desired spectral composition of the mixed light emitted by the string (STi).
    • 本发明涉及串联排列的发光二极管(D1i,D2i,D3i)的串(STi)驱动器,其中至少两个发射具有不同光谱的光。 驱动器包括主电源(PAi),其具有耦合到串的输出(STi)以向串(STi)提供主电流(IAi)。 次级电源(PBi)耦合到串(STi)中的连续发光二极管(D1i,D2i)之间的至少一个结(J1i),以从结(J1i)提供或退出增量电流(IBi) 。 增量电流(IBi)至少比主电流(IAi)小5倍。 控制器(CO)控制次级电源(PBi)以产生增量电流(IBi),以获得由串(STi)发射的混合光的期望频谱组成。