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公开(公告)号：EP1459599A1
公开(公告)日：2004-09-22
申请号：EP02781532.3
申请日：2002-11-15
IPC分类号： H05B33/08
CPC分类号： H05B33/0818 , B60Q1/2607 , B60Q1/2696 , B60Q1/44 , H05B33/0845
摘要： The driver circuit for light emitting diodes (LEDs) of the present invention provides power to LEDs using pulse width modulation (PWM). The driver circuit 100 uses current feedback to adjust power to LED arrays 54 and provides a full light and a dim mode.
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公开(公告)号：EP1147686B1
公开(公告)日：2004-01-07
申请号：EP00951329.2
申请日：2000-07-03
发明人： JACOBS, Ronny, A., A., M. , HONTELE, Bertrand, J., E. , DE CLERCQ, John, E., K., G. , BUCKS, Marcel, J., M. , NIJHOF, Engbert, B., G.
IPC分类号： H05B33/08
CPC分类号： H05B33/0815 , Y02B20/346
摘要： The invention relates to a circuit arrangement for operating a semiconductor light source, comprising input terminals for connecting a supply voltage, input filter means, a converter provided with a switching element having a control circuit, and provided with inductive means, and output terminals for connecting the semiconductor light source. The switching element is periodically driven into conduction for a period ton. According to the invention, the converter is formed by a flyback converter, and the inductive means are formed by a transformer, and the control circuit controls the ton.
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3.发明公开
公开(公告)号：EP2050318A1
公开(公告)日：2009-04-22
申请号：EP07805151.3
申请日：2007-07-13
IPC分类号： H05B41/295
CPC分类号： H05B41/295
摘要： The method according to the present invention relates to controlling a gas discharge lamp during a pre-heating period of said lamp, wherein a first terminal of a control circuit is connected with a first electrode of the lamp and a second terminal of a control circuit is connected with a second electrode of the lamp, and wherein means are provided, suitable for connecting the first terminal and the second terminal with each other, thus providing a conducting path, and suitable for disconnecting the first terminal and the second terminal. Furthermore the method comprises the use of a chargeable and dischargeable power buffer, for powering control circuitry for operating the switching means.
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公开(公告)号：EP1147686A1
公开(公告)日：2001-10-24
申请号：EP00951329.2
申请日：2000-07-03
发明人： JACOBS, Ronny, A., A., M. , HONTELE, Bertrand, J., E. , DE CLERCQ, John, E., K., G. , BUCKS, Marcel, J., M. , NIJHOF, Engbert, B., G.
IPC分类号： H05B33/08
CPC分类号： H05B33/0815 , Y02B20/346
摘要： The invention relates to a circuit arrangement for operating a semiconductor light source, comprising input terminals for connecting a supply voltage, input filter means, a converter provided with a switching element having a control circuit, and provided with inductive means, and output terminals for connecting the semiconductor light source. The switching element is periodically driven into conduction for a period ton. According to the invention, the converter is formed by a flyback converter, and the inductive means are formed by a transformer, and the control circuit controls the ton.
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公开(公告)号：EP1459599B2
公开(公告)日：2012-11-07
申请号：EP02781532.3
申请日：2002-11-15
IPC分类号： H05B33/08
CPC分类号： H05B33/0818 , B60Q1/2607 , B60Q1/2696 , B60Q1/44 , H05B33/0845
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6.发明公开
公开(公告)号：EP1166604A1
公开(公告)日：2002-01-02
申请号：EP01907413.7
申请日：2001-01-08
IPC分类号： H05B33/08
CPC分类号： H05B33/0818 , H05B33/0842 , H05B33/0851 , Y02B20/346 , Y02B20/347
摘要： A supply assembly for a LED lighting module, comprising a PWM controlled current source supply unit to which the LED lighting module can be connected and a burst control unit which is capable of switching the power supply unit on and off with a burst frequency (fburst) so as to control the mean light output. Preferably, the burst control unit is provided with a pulse duration modulator for controlling the pulse length (T pulse) during which the supply unit is operative.
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7.发明授权LED LIGHTING WITH INCANDESCENT LAMP COLOR TEMPERATURE BEHAVIOR 无效LED-BELEUCHTUNG MITGLÜHLAMPENFARBTEMPERATURVERHALTEN
公开(公告)号：EP2407009B1
公开(公告)日：2013-06-12
申请号：EP10710679.1
申请日：2010-03-11
发明人： TER WEEME, Berend, J., W. , JANS, William, P., M., M. , ZIJLMAN, Theo, G. , AKDAG, Gazi , VAN DIJK, Erik, M., H., P. , JULICHER, Paul, J., M. , HONTELE, Bertrand, J., E.
IPC分类号： H05B33/08
CPC分类号： H05B33/0857 , H05B33/0806 , H05B33/0815 , H05B33/086
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8.发明授权
公开(公告)号：EP2050318B1
公开(公告)日：2012-09-12
申请号：EP07805151.3
申请日：2007-07-13
IPC分类号： H05B41/295
CPC分类号： H05B41/295
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公开(公告)号：EP2422584A1
公开(公告)日：2012-02-29
申请号：EP10718287.5
申请日：2010-04-16
IPC分类号： H05B33/08
CPC分类号： H05B33/0815 , H05B33/0848
摘要： A driver (10) for driving a LED (2) comprises: an ACDC converter (5) receiving AC mains voltage and generating DC output current; a chopper (6) receiving the DC output current and provide a regularly interrupted output current; a clock generator (20) generating a clock signal (S
CL ); a controller (50) receiving a user input signal (S
u ) indicating a dimming level, receiving the clock signal, receiving a mains signal (S
M ) representing the actual phase of the mains voltage, and generating a control signal (S
c ) for the chopper. The chopper is responsive to the controller's control signal as regards the switching moments of the output current. The controller calculates the required duty cycle on the basis of the user input signal. The controller synchronizes its control signal with the mains signal. The controller sets an arbitrary value for the phase difference of the output control signal with respect to the input mains signal.-
公开(公告)号：EP2407009A2
公开(公告)日：2012-01-18
申请号：EP10710679.1
申请日：2010-03-11
发明人： TER WEEME, Berend, J., W. , JANS, William, P., M., M. , ZIJLMAN, Theo, G. , AKDAG, Gazi , VAN DIJK, Erik, M., H., P. , JULICHER, Paul, J., M. , HONTELE, Bertrand, J., E.
IPC分类号： H05B33/08
CPC分类号： H05B33/0857 , H05B33/0806 , H05B33/0815 , H05B33/086
摘要： In a lighting device, sets of LEDs are employed using the natural characteristics of the LEDs to resemble incandescent lamp behavior when dimmed, thereby obviating the need for sophisticated controls. A first set of at least one LED produces light with a first color temperature, and a second set of at least one LED produces light with a second color temperature. The first set and the second set are connected in series, or the first set and the second set are connected in parallel, possibly with a resistive element in series with the first or the second set. The first set and the second set differ in temperature behavior, or have different dynamic electrical resistance. The light device produces light with a color point parallel and close to a blackbody curve.
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