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    EMERGENCY POWER SUPPLY FOR LIGHTING APPARATUS
    2.
    发明公开
    EMERGENCY POWER SUPPLY FOR LIGHTING APPARATUS 审中-公开

    公开(公告)号：EP3375066A1

    公开(公告)日：2018-09-19

    申请号：EP16815638.8

    申请日：2016-10-31

    申请人： Beghelli S.p.A.

    发明人： BEGHELLI, Gian Pietro

    IPC分类号： H02J9/06 ,  H05B33/08

    CPC分类号： H02J9/061 ,  H02J9/065 ,  H02M3/33523 ,  H05B33/0815 ,  Y02B20/346

    摘要： An emergency power supply for lighting apparatuses and to a lighting apparatus for an emergency power supply. The emergency power supply (1) includes: a power supply (11) provided with at least one main insulation, e.g., transformer, (34), operatively connectable to the network voltage; an accumulator (16) operatively connected to the power supply (11); a flyback power converter (17) including a primary (18) and a secondary (19) provided within at least one additional insulation, e.g., transformer (30). The primary (18) is connected to the accumulator (16) and the secondary (19) is directly connectable, except for the conversion network, to the output of a network power supply (2) and simultaneously to a light source (3). A control unit (20), which includes an transistor activation device (27), is operatively connected to the power supply (11), to the accumulator (16) and to the primary (18) of the flyback power converter (17) and is configured for detecting the network voltage and for switching the emergency power supply (1) between a first mode of deactivation of the flyback power converter (17) and a second mode of activation of the flyback power converter (17).

    COORDINATED DIMMER COMPATIBILITY FUNCTIONS
    3.
    发明公开
    COORDINATED DIMMER COMPATIBILITY FUNCTIONS 审中-公开

    公开(公告)号：EP3346593A1

    公开(公告)日：2018-07-11

    申请号：EP17200852.6

    申请日：2011-07-29

    申请人： Philips Lighting Holding B.V.

    发明人： MELANSON, John, L. ,  KING, Eric, J.

    IPC分类号： H02M1/36 ,  H05B33/08 ,  H02M3/335 ,  H02M7/06 ,  H02M1/00

    CPC分类号： H02M7/06 ,  H02M1/36 ,  H02M3/22 ,  H02M3/33507 ,  H02M2001/0006 ,  H05B33/0815 ,  Y02B20/346 ,  Y10T307/352 ,  Y10T307/50

    摘要： An electronic system (300) comprising a load (308) including one or more light emitting diodes, a power converter system (304) for providing compatibility between a dimmer (306) and the load (308), wherein the dimmer provides a dimmer voltage (VΦ_DIM) to the power converter system (304), the dimmer voltage comprising three states: A. an approximately zero volt crossing of the dimmer voltage (VΦ_DIM) of the dimmer (306) until a phase cut, leading edge of the dimmer voltage (VΦ_DIM); B. an end of state A until energy transferred to the load (308) is sufficient to meet at least one energy transfer parameter; and C. an end of state B until a beginning of a next state A, the electronic system (300) further comprising a controller (302, 402) for controlling the power converter system (304), characterized in that the controller (302, 402) comprises a low impedance path state controller (310, 404) configured to, for state A, enable a low impedance path (316) for a dimmer current of the dimmer (306), wherein the impedance of the low impedance path is sufficiently low to maintain a stable phase angle of the dimmer (306), a switch mode power conversion controller (312, 406) configured to, for state B, control power conversion by the power converter system (304) of the dimmer voltage; and control the power converter system to maintain the dimmer current above a current threshold and an inactive state controller (314, 408) configured to, for state C, enter an inactive state, wherein during the inactive state the low impedance path and the power conversion are disabled.

    LED DIMMING CONTROL TECHNIQUE FOR INCREASING THE MAXIMUM PWM DIMMING RATIO AND AVOIDING LED FLICKER
    4.
    发明授权
    LED DIMMING CONTROL TECHNIQUE FOR INCREASING THE MAXIMUM PWM DIMMING RATIO AND AVOIDING LED FLICKER 有权

    公开(公告)号：EP1994799B1

    公开(公告)日：2018-05-30

    申请号：EP06802861.2

    申请日：2006-09-01

    申请人： Linear Technology Corporation

    发明人： MAROSEK, Mark, W.

    IPC分类号： H05B33/08

    CPC分类号： H05B33/0815 ,  Y02B20/346 ,  Y10S315/04

    摘要： Circuitry and methodology for providing LED dimming control in a LED driving system having a switching regulator for providing power supply to drive the LED. The switching regulator includes a switching circuit to which an oscillation signal is applied to control switching of the switching circuit. A dimming control input is supplied with a pulse-width modulation (PWM) dimming control signal to provide PWM dimming control of the LED. The dimming control input applies the PWM dimming control signal to control switching of the switching circuit. A synchronizing circuit is provided for synchronizing the oscillation signal to the PWM dimming control signal.

    SCHALTUNGSANORDNUNG EINER BELEUCHTUNGSEINRICHTUNG EINES KFZ SOWIE SIGNALWANDLER UND VERFAHREN ZUR ANSTEUERUNG EINES SCHALTELEMENTS
    5.
    发明公开
    SCHALTUNGSANORDNUNG EINER BELEUCHTUNGSEINRICHTUNG EINES KFZ SOWIE SIGNALWANDLER UND VERFAHREN ZUR ANSTEUERUNG EINES SCHALTELEMENTS 审中-公开
    汽车照明装置的电路布置以及信号转换器和控制切换元件的方法

    公开(公告)号：EP3313148A1

    公开(公告)日：2018-04-25

    申请号：EP17197361.3

    申请日：2017-10-19

    申请人： Automotive Lighting Reutlingen GmbH

    发明人： Bez, Benedikt ,  Heyer, Mathias

    IPC分类号： H05B33/08

    CPC分类号： H05B33/083 ,  H05B33/0815 ,  Y02B20/346

    摘要： Die Erfindung betrifft eine Schaltungsanordnung (1) einer Beleuchtungseinrichtung, vorzugsweise eines KFZ, mit wenigstens zwei in Reihe geschalteten Halbleiterlichtquellen (D 1 , D 2 ), wobei wenigstens eine erste Halbleiterlichtquelle (D 1 , D 2 ) durch eine zur ersten Halbleiterlichtquelle (D 1 , D 2 ) parallel geschaltete Bypass-Schaltung (BP 1 , BP 2 ) mit einem mittels eines Bypass-Steuersignals (S 1 , S 2 ) steuerbaren Schaltelement (Q 1 , Q 2 ) überbrückbar ist und wobei die erste Halbleiterlichtquelle (D 1 , D 2 ) bei durchgeschaltetem Schaltelement (Q 1 , Q 2 ) überbrückt ist. Erfindungsgemäß ist ein Signalwandler (SW 1 , SW 2 ) vorgesehen, der ein Ansteuersignal (A 1 , A 2 ) in das Bypass-Steuersignal (S 1 , S 2 ) umwandelt, wobei der Signalwandler (SW 1 , SW 2 ) wenigstens ein Flankeneinstellmittel (F 1 ) zur Einstellung der Flankensteilheit einer Flanke (FL 1 ) des Bypass-Steuersignals (S 1 , S 2 ) aufweist.

    摘要翻译： 本发明涉及一种电路装置（1）的照明装置中，优选的机动车辆的，具有至少两个串联连接的半导体光源（D1，D2），其特征在于，至少由所述第一半导体光源（D1，D2）并联连接的第一半导体光源（D1，D2） 是旁路电路（BP1，BP2）由旁路控制信号的开关元件的装置（S1，S2）（Q1，Q2）可控可桥接，且其中所述第一半导体光源（D1，D2）当通过开关元件切换（Q1，Q2）桥接。 根据本发明，一个信号转换器（SW1，SW2）被提供，其在旁路控制信号（S1，S2）转换的控制信号（A1，A2），所述信号转换器（SW1，SW2）的至少一个Flankeneinstellmittel（F1）来调整的斜率 旁路控制信号（S1，S2）的旁路（FL1）。

    SEMICONDUCTOR DEVICE
    7.
    发明公开
    SEMICONDUCTOR DEVICE 审中-公开
    半导体器件

    公开(公告)号：EP3276596A2

    公开(公告)日：2018-01-31

    申请号：EP17183341.1

    申请日：2017-07-26

    申请人： Rohm Co., Ltd.

    发明人： NAGAO, Kei ,  TAKAHASHI, Toru

    IPC分类号： G09G3/00 ,  H05B33/08 ,  G01R27/26 ,  G01R31/28

    CPC分类号： H05B33/0887 ,  B60K37/02 ,  G01R31/44 ,  G09G3/006 ,  G09G2330/02 ,  G09G2330/026 ,  G09G2330/12 ,  H05B33/0815 ,  H05B33/0851 ,  Y02B20/346

    摘要： A semiconductor device includes: a diagnosis portion which diagnoses, when the device is started up, whether an abnormality occurs in a component for setting that is externally connected; and a control portion which stops the startup of the device when the diagnosis portion diagnoses that an abnormality occurs, the diagnosis portion diagnoses whether an abnormality occurs in which the connection of the component for setting that is a resistor is disconnected, the semiconductor device further includes an external terminal which is connected to one end of the resistor and the diagnosis portion includes a constant current circuit which passes a constant current through the resistor via the external terminal, a comparator to which a voltage produced at the external terminal is input and a transistor which switches between the connection and interruption of a path along which the constant current is passed.

    摘要翻译： 一种半导体器件包括：诊断部分，其在装置启动时诊断在外部连接的用于设置的部件中是否发生异常; 以及控制部，当所述诊断部诊断为发生了异常时，停止所述设备的启动，所述诊断部诊断是否发生了作为电阻器的所述设定部件的连接被切断的异常，所述半导体装置还包括 连接到电阻器和诊断部分的一端的外部端子包括恒定电流电路，该恒定电流电路经由外部端子使恒定电流流过电阻器，输入在外部端子处产生的电压的比较器和晶体管 其在连接和中断恒流通过的路径之间切换。

    POWER CONTROL SYSTEM FOR CURRENT REGULATED LIGHT SOURCES
    10.
    发明授权
    POWER CONTROL SYSTEM FOR CURRENT REGULATED LIGHT SOURCES 有权
    电流调节光源的功率控制系统

    公开(公告)号：EP2130407B1

    公开(公告)日：2017-08-30

    申请号：EP08743811.5

    申请日：2008-03-12

    申请人： Philips Lighting Holding B.V.

    发明人： MELANSON, John, L.

    IPC分类号： H05B33/08

    CPC分类号： H05B33/0815 ,  H03K17/18 ,  H03K17/567 ,  H03K17/687 ,  H03K17/6872 ,  H03K17/74 ,  H05B33/0809 ,  H05B33/0818 ,  H05B33/0845 ,  H05B33/0848 ,  H05B33/0851 ,  H05B33/0887 ,  Y02B20/346 ,  Y02B20/347 ,  Y10S315/04 ,  Y10S323/905

    摘要： A method and system allow a lighting device having light sources with multiple color temperatures to vary a color temperature of the lighting device in response to changing dimming levels. The light sources are non-incandescent light sources, such as light emitting diodes and/or gas-discharge lights. A dimmer circuit provides a dimming signal that indicates a selected dimming level. The lighting device includes a light source driver and a light source driver controller that cooperate to vary drive currents to the light sources in response to the selected dimming level. By varying the drive currents in different relative amounts, the color temperature of the lighting device changes in response to dimming level changes. In at least one embodiment, changes in the color temperature of the lighting device in response to the dimming level changes simulates the color temperature changes of an incandescent light source.

    摘要翻译： 一种方法和系统允许具有多个色温的光源的照明设备响应于改变的调光水平来改变照明设备的色温。 光源是非白炽光源，例如发光二极管和/或气体放电灯。 调光器电路提供指示选定的调光水平的调光信号。 照明设备包括光源驱动器和光源驱动器控制器，其配合以响应于所选择的调光水平而改变到光源的驱动电流。 通过以不同的相对量改变驱动电流，照明设备的色温响应于调光水平改变而改变。 在至少一个实施例中，响应于调光水平变化的照明设备的色温的变化模拟白炽光源的色温变化。