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公开(公告)号：EP2288842A1
公开(公告)日：2011-03-02
申请号：EP09754283.1
申请日：2009-05-25
CPC分类号： H05B37/0218 , H05B33/0869 , H05B37/0272 , Y02B20/46
摘要： Devices (1) comprise receivers (11) for receiving signals (4) coming from signal-systems (5) at objects (3) and comprise converters (12) for converting the signals (4) into control information (7, 8) for controlling light-systems (2) for illuminating the objects (3). The signal-system (5) may comprise a sensor (51, 52) for sensing light (41-44) and for providing sensing information and a transmitter (53) for transmitting the signal (4) comprising the sensing information to the device (1). Alternatively the signal-system (5) may comprise a reflector (54) for converting light (41-44) into reflected light or may comprise a light source (55) for providing light (56), whereby the receiver (11) comprises a sensor (19) for sensing the reflected light or the light (56) and for providing the sensing information (7, 8). The device (1) may comprise an analyzer (14) for analyzing the sensing information (7, 8) and a memory (15) for storing location information and/or light information and/or signal-system information and a generator (16) for generating search information for letting the light-system (2) search for the signal-system (5).
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2.发明公开DRIVER DEVICE AND DRIVING METHOD FOR DRIVING A LOAD, IN PARTICULAR AN LED UNIT 有权控制装置及控制方法的负载，特别是LED单元
公开(公告)号：EP2636282A1
公开(公告)日：2013-09-11
申请号：EP11785120.4
申请日：2011-10-31
发明人： LOPÉZ, Toni , ELFERICH, Reinhold
CPC分类号： H05B33/0815
摘要： The present invention relates to a driver device (50a-50e) and a corresponding driving method for driving a load (22), in particular an LED unit comprising a power input unit (52) for receiving an input voltage (V20) from an external power supply and for providing a rectified supply voltage (V52), a power conversion unit (54) for converting said supply voltage (V52) to a load current (154) for powering the load (22), a charge capacitor (56) for storing a charge and powering the load (22) when insufficient energy for powering the load (22) and/or the power conversion unit (54) is drawn from said external power supply (20) at a given time, and a control unit (58) for controlling the charging of said charge capacitor (56) by said supply voltage (V52) to a capacitor voltage (V56) that can be substantially higher than the peak voltage (V52) of said supply voltage and for powering the load (22).
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公开(公告)号：EP2545748A1
公开(公告)日：2013-01-16
申请号：EP11711679.8
申请日：2011-03-09
发明人： ELFERICH, Reinhold , LOPEZ, Toni
CPC分类号： H05B37/02 , H02M1/4258 , H02M3/3376 , H02M2001/0058 , H05B33/0815 , Y02B70/126 , Y02B70/1433 , Y02B70/1491
摘要： A parallel resonant converter is operated directly from rectified mains. The single-stage power supply copes with present dimmers (such as leading edge dimmers and trailing edge dimmers) and meets EMC standards. The operating scheme allows avoiding exciting 100/120 Hz flicker without using an electrolytic capacitor. This is possible during both full operation and dimmed operation. Deep dimming down to less than 5% is possible and does not require extra power components.
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公开(公告)号：EP2401806A1
公开(公告)日：2012-01-04
申请号：EP10708601.9
申请日：2010-02-23
发明人： DEPPE, Carsten , ELFERICH, Reinhold
CPC分类号： H02M3/337 , H02M2001/0058 , H05B33/0818 , Y02B20/346 , Y02B70/1491
摘要： Converters (1) for supplying pulsed power to light sources (8) comprise switching parts (2) and controlling parts (3) for adapting switching parameters of the switching parts (2) for improving a performance. The switching part (2) may comprise first/second switches (41, 42) that are in first/second modes during a first time interval of a cycle and vice versa during a second time intervals of a cycle. A group of cycles results in a pulse of the pulsed power. A switching parameter such as the first time interval of a first cycle may be shortened to reduce overshoot. A switching parameter such as the second time interval of the first cycle may be shortened or lengthened. A switching parameter such as the second time interval of a last cycle may be lengthened or shortened to reduce overshoot. A third switch (93) for switching the light source (8) is activated and de-activated delayedly to improve transient behavior.
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5.发明公开DEVICE AND PROCESS FOR CONTROLLED CONVEYING OF DIFFERENT VISUAL IMPRESSIONS OF A ROOM WHILE RETAINING IDENTICAL ROOM ILLUMINATION 审中-公开设备和方法不同的视觉印象的可控推广面积保持相同的房间的灯
公开(公告)号：EP2276968A1
公开(公告)日：2011-01-26
申请号：EP09742503.7
申请日：2009-04-30
发明人： ELFERICH, Reinhold
CPC分类号： G02C7/101 , F21V14/003 , G02B27/0093
摘要： The invention concerns a device for the controlled conveying of different visual impressions of a room while retaining identical room illumination, consisting of at least two sources of light and at least one set of shutter glasses, where at least one of the light sources (La, Lb, Lc) is chronologically pulse controlled and the shutter glasses (S1, S2) are synchronised with a least one of the pulsed sources of light (La, Lb, Lc). The invention also concerns a process for conveying individual impressions of a room while retaining identical room illumination
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公开(公告)号：EP2036193A2
公开(公告)日：2009-03-18
申请号：EP07766761.6
申请日：2007-06-15
发明人： ELFERICH, Reinhold
CPC分类号： H02M3/3376 , H02M3/33592 , H02M2001/0032 , Y02B70/1433 , Y02B70/1475 , Y02B70/16
摘要： According to an exemplary embodiment a method of operating a resonant power supply comprises controlling the resonant power supply in a discontinuous way. According to an exemplary embodiment a resonant power supply comprises a first switching element, and at least one energy storing element, wherein the resonant power supply is adapted to be controlled in a discontinuous way.
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公开(公告)号：EP2030322A2
公开(公告)日：2009-03-04
申请号：EP07735878.6
申请日：2007-05-14
发明人： LOPEZ, Toni , ELFERICH, Reinhold
CPC分类号： H02M1/08 , H03K17/0822 , H03K17/166 , H03K17/687 , H03K2217/0036
摘要： A switching circuit arrangement (100) comprises a field effect transistor (40) and circuitry (50, 52, 54, 60, 62) for biasing the gate voltage of the field effect transistor (40), in particular forcing the gate voltage of the field effect transistor (40) under a certain threshold, in particular under a certain positive threshold level. In embodiments, reverse recovery as well as gate bounce are simultaneously mitigated. In one embodiment, the biasing circuitry comprises a biasing diode (52) connected in series to the gate (G) of the field effect transistor (40) to bias the gate voltage of the field effect transistor (40), as well as a clamping field effect transistor unit (62) connected between the gate (G) of the field effect transistor (40) and the source (S) of the field effect transistor (40) to force the gate voltage of the field effect transistor (40) under a certain threshold, in particular under a certain positive threshold level.
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公开(公告)号：EP1751840A2
公开(公告)日：2007-02-14
申请号：EP05739755.6
申请日：2005-05-11
发明人： ELFERICH, Reinhold
CPC分类号： H02M3/3376 , Y02B70/1433
摘要： A control method is proposed that enables to drive a resonant (LLC) power converter at low loads with substantially reduced power losses for realizing a stand-by power. The reduction is achieved by a sub-critical operation several times below Resonance Frequency while still keeping zero voltage switching. One half-bridge switch (s1) is turned on for a short pulse - in the remaining time of the sub-critical switching period the resonant current oscillates through the other switch (s2). Zero voltage switching is obtained by evaluating the resonant capacitor voltage. The pulse length determines the stand-by power and is used as controlling variable. The power supply is suitable for Consumer Electronics products that require a low power standby supply.
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公开(公告)号：EP1527511A2
公开(公告)日：2005-05-04
申请号：EP03766543.7
申请日：2003-07-16
IPC分类号： H02M3/158
CPC分类号： H02M3/158 , H02M3/1588 , H02M2001/0051 , Y02B70/1466 , Y02B70/1491
摘要： The invention relates to a DC/DC down converter which includes a synchronous rectifier (S), a switching element (C)at its input side and an inductance (L) at its output side. In order to permit fast load fluctuations as well as to reduce costs and operating losses, it is proposed to provide an auxiliary circuit which comprises an auxiliary switching element (A), an auxiliary rectifier (Daux) and an auxiliary inductance (Laux), the auxiliary circuit being coupled to the connection between the synchronous rectifier, the switching element at the input side and the inductance at the output side.
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公开(公告)号：EP2497186A2
公开(公告)日：2012-09-12
申请号：EP10782705.7
申请日：2010-10-29
发明人： ELFERICH, Reinhold
CPC分类号： H02M3/3376 , H02M3/338 , Y02B70/1433
摘要： A feedback circuit for a zero-voltage-switching converter (1) for feeding a load circuit (2, 3), which converter (1) comprises a chopper (4), a driver (5) and a resonant tank (6), is provided with an arrangement (10) for receiving a first signal derived from a resonant tank signal and a second signal derived from a load circuit signal and for generating in response thereto a control signal for the driver (5). Such converters (1) can stand feeding voltage fluctuations and load variations relatively well. The arrangement (10) may comprise an error circuit (12) for, in response to the second signal and a reference signal, generating an error signal, and a combiner circuit (13) for, in response to the first signal and the error signal, generating the control signal. The same converter (1) may be used for supplying two or more load circuits (2, 3), in which case an error circuit (15) may generate an error signal and a duty cycle signal or two error signals.
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