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1. 发明申请

WO2009095854A2 LED DRIVER CIRCUIT AND METHOD, AND SYSTEM AND METHOD FOR ESTIMATING THE JUNCTION TEMPERATURE OF A LIGHT EMITTING DIODE 审中-公开
标题翻译： LED驱动电路和方法，以及用于估计发光二极管的连接温度的系统和方法
公开(公告)号：WO2009095854A2
公开(公告)日：2009-08-06
申请号：PCT/IB2009/050326
申请日：2009-01-27
申请人： NXP B.V. , HOOGZAAD, Gian , SCHMITZ, Hans , LANGESLAG, Wilhelmus, H., M. , SURDEANU, Radu
发明人： HOOGZAAD, Gian , SCHMITZ, Hans , LANGESLAG, Wilhelmus, H., M. , SURDEANU, Radu
IPC分类号： H05B33/08
CPC分类号： H05B33/0818 , G01K7/01
摘要： A driver circuit (10) for a light emitting diode comprises a first driver circuit (32, 32', 32') for generating a first current output for driving the light emitting diode, wherein the first driver circuit has a control switch for interrupting the supply of the first current output. A second driver circuit (50) is for generating a second current output for driving the light emitting diode, and the second driver circuit also has a control switch for interrupting the supply of the second current output. The overall output of the driver circuit comprises a pulse width modulated output current which alternates between a high current (I high ) generated by the first driver circuit and a low current (I |OW ) generated by the second driver circuit. By providing separate driver circuits for two different current requirements, the circuits can be optimised for each function. For example the high current value can comprise an LED operation current, and the low current value can comprise a non-zero measurement current.
摘要翻译：用于发光二极管的驱动电路（10）包括用于产生用于驱动发光二极管的第一电流输出的第一驱动电路（32,32'，32'），其中第一驱动电路具有用于中断提供第一个电流输出。第二驱动电路（50）用于产生用于驱动发光二极管的第二电流输出，并且第二驱动电路还具有用于中断第二电流输出的供给的控制开关。驱动电路的总体输出包括在由第一驱动电路产生的高电流（Ihigh）和由第二驱动电路产生的低电流（I | OW）之间交替的脉宽调制输出电流。通过为两种不同的电流要求提供单独的驱动电路，可以针对每个功能优化电路。例如，高电流值可以包括LED操作电流，并且低电流值可以包括非零测量电流。

2. 发明申请

WO2009138908A1 METHOD AND CIRCUIT ARRANGEMENT FOR CYCLE-BY-CYCLE CONTROL OF A LED CURRENT FLOWING THROUGH A LED CIRCUIT ARRANGEMENT, AND ASSOCIATED CIRCUIT COMPOSITION AND LIGHTING SYSTEM 审中-公开
标题翻译：通过LED电路布置的LED电流循环周期控制的方法和电路布置，以及相关电路组成和照明系统
公开(公告)号：WO2009138908A1
公开(公告)日：2009-11-19
申请号：PCT/IB2009/051861
申请日：2009-05-06
申请人： NXP B.V. , HOOGZAAD, Gian , LANGESLAG, Wilhelmus, H., M. , PANSIER, Frans , ZHANG, Cheng
发明人： HOOGZAAD, Gian , LANGESLAG, Wilhelmus, H., M. , PANSIER, Frans , ZHANG, Cheng
IPC分类号： H05B33/08
CPC分类号： H05B33/0815 , H05B33/083
摘要： The invention provides a method for cycle-by-cycle control of a LED current (ILED) flowing through a LED circuit arrangement (LEDCIRC) at a mean LED current level. The method comprises a) establishing a converter current (IL), b) establishing an oscillation of the converter current (IL) between substantially a valley current level and substantially a peak current level, c) feeding the LED circuit arrangement (LEDCIRC) with the converter current (IL) as the LED current during a part of an oscillation cycle of the oscillation of the converter current, d) determining a current level correction for compensating a current level error between an integral over an oscillation cycle of the LED current and a reference, the reference being representative of the mean LED current level, and e) adjusting at least one of the valley current level and the peak current level with the current level correction for use in a successive cycle of the oscillation of the converter current. The invention also provides a circuit arrangement operable for using the method, a LED driver IC using the circuit arrangement, a circuit composition with at least one LED and the circuit arrangement, and a lighting system with the circuit composition.
摘要翻译：本发明提供了一种在平均LED电流水平下逐步控制流过LED电路装置（LEDCIRC）的LED电流（ILED）的方法。该方法包括：a）建立转换器电流（IL），b）建立基本上谷值电流水平和基本上峰值电流水平之间的转换器电流（IL）的振荡，c）将LED电路装置（LEDCIRC）馈送到在转换器电流的振荡的振荡周期的一部分期间，转换器电流（IL）作为LED电流，d）确定用于补偿LED电流的振荡周期之间的积分和电流水平误差的电流电平校正，参考，该参考代表平均LED电流电平，以及e）利用当前电平校正来调整谷电流电平和峰值电流电平中的至少一个，以用于转换器电流的振荡的连续循环。本发明还提供一种可用于使用该方法的电路装置，使用电路装置的LED驱动器IC，具有至少一个LED的电路组合和电路装置，以及具有电路组成的照明系统。

3. 发明申请

WO2009128023A1 SELF-OSCILLATING SWITCHED MODE CONVERTER WITH VALLEY DETECTION 审中-公开
标题翻译：自动振荡开关模式转换器与谷检测
公开(公告)号：WO2009128023A1
公开(公告)日：2009-10-22
申请号：PCT/IB2009/051547
申请日：2009-04-14
申请人： NXP B.V. , ZHANG, Cheng , LANGESLAG, Wilhelmus, H., M.
发明人： ZHANG, Cheng , LANGESLAG, Wilhelmus, H., M.
IPC分类号： H02M3/156 , H02M3/338
CPC分类号： H02M3/1563 , H02M3/3381 , Y02B70/1425 , Y02B70/1433
摘要： An energy converter is disclosed in which self oscillation mode operation is improved by a closed loop feedback control. The feedback control utilises the voltage error from the voltage valley in the drain voltage (Vdrain) of the converter switch(l), to determine an error(E(n)) in the time domain. Control circuitry (61, 62, 63) is used to minimise this time-domain error (E (n) ) to optimise the control of the switch mode converter.
摘要翻译：公开了一种能量转换器，其中通过闭环反馈控制来提高自振模式操作。反馈控制利用来自转换器开关（1）的漏极电压（Vdrain）的电压谷的电压误差来确定时域中的误差（E（n））。控制电路（61,62,63）用于使该时域误差（E（n））最小化以优化开关模式转换器的控制。

4. 发明申请

WO2006072917A2 SWITCHED MODE POWER SUPPLY 审中-公开
标题翻译：开关电源
公开(公告)号：WO2006072917A2
公开(公告)日：2006-07-13
申请号：PCT/IB2006/050049
申请日：2006-01-05
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , STRIJKER, Arjan , TERPSTRA, Gerrit , LANGESLAG, Wilhelmus, H., M.
发明人： STRIJKER, Arjan , TERPSTRA, Gerrit , LANGESLAG, Wilhelmus, H., M.
IPC分类号： H02M1/42
CPC分类号： H02M1/4225 , H02M2001/0032 , H02M2001/007 , Y02B70/126 , Y02B70/16
摘要： A power supply includes a PFC stage 6 and an SMPS stage 8. The power supply can operate in a normal mode in which the PFC stage supplies a voltage to the SMPS stage. In a standby mode, the PFC stage is operated in bursts to supply a lower voltage to the SMPS stage that is high enough that the SMPS stage can rapidly respond when it needs to supply a load.
摘要翻译：电源包括PFC级6和SMPS级8.电源可以在PFC级向SMPS级提供电压的正常模式下工作。在待机模式下，PFC级以突发方式运行，以向SMPS级提供较低的电压，该电平足够高，使得当需要提供负载时，SMPS级可以快速响应。

5. 发明申请

WO2003039211A1 CIRCUIT ARRANGEMENT 审中-公开
标题翻译：电路布置
公开(公告)号：WO2003039211A1
公开(公告)日：2003-05-08
申请号：PCT/IB2002/004405
申请日：2002-10-22
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , LANGESLAG, Wilhelmus, H., M.
发明人： LANGESLAG, Wilhelmus, H., M.
IPC分类号： H05B41/38
CPC分类号： H05B41/2883 , H05B41/388 , Y02B20/204
摘要： The invention relates to a ballast arrangement for igniting and operating a discharge lamp. The lamp is connected in a commutating bridge in series with an inductor and parallel to a capacitor. The conductor and the capacitor together form a resonance circuit. During ignition, the bridge is commutated at a comparatively high frequency that changes with respect to time. According to the invention, the series resonance circuit has a resonance frequency that is close to an odd harmonic of the comparatively high frequency.
摘要翻译：本发明涉及一种用于点燃和操作放电灯的镇流器装置。该灯连接在与电感器并联的电感器的整流桥中。导体和电容器一起形成谐振电路。在点火期间，桥接器以相对较高的频率进行换向，相对于时间变化。根据本发明，串联谐振电路具有接近较高频率的奇次谐波的谐振频率。

6. 发明申请

WO2003069767A1 NOISE REDUCTION IN A POWER CONVERTER 审中-公开
标题翻译：电力转换器中的噪声降低
公开(公告)号：WO2003069767A1
公开(公告)日：2003-08-21
申请号：PCT/IB2003/000227
申请日：2003-01-27
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , LANGESLAG, Wilhelmus, H., M. , STRIJKER, Joan, W.
发明人： LANGESLAG, Wilhelmus, H., M. , STRIJKER, Joan, W.
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M1/44 , H02M3/3385 , Y02B70/1433
摘要： The present invention concerns a control device (28) for a switching power converter (10), a switching power converter and a method of controlling a switch in a power converter for reducing audible noise. The power converter comprises the control device (28) and at least one switch (26) for regulating the power conversion. The control device (28) comprises a timer (45) for monitoring a switching frequency of the switch (26) to indicate when the frequency has dropped to a certain level, and a gate driving circuit (32) connected to the timer and arranged to regulate the switching of the switch in dependence of the indication from the timer, so that the frequency rises above said certain level in order to reduce generation of audible noise.
摘要翻译：本发明涉及一种用于开关功率转换器（10）的控制装置（28），开关功率转换器和控制功率转换器中用于降低可听噪声的开关的方法。功率转换器包括控制装置（28）和用于调节功率转换的至少一个开关（26）。控制装置（28）包括：定时器（45），用于监视开关（26）的开关频率，以指示频率何时下降到一定水平;以及栅极驱动电路（32），连接到定时器并被布置成根据来自定时器的指示来调节开关的切换，使得频率上升到高于所述一定水平，以减少可听见的噪声的产生。

7. 发明申请

WO2003039206A1 BALLASTING CIRCUIT 审中-公开
标题翻译：调速电路
公开(公告)号：WO2003039206A1
公开(公告)日：2003-05-08
申请号：PCT/IB2002/004416
申请日：2002-10-22
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , LANGESLAG, Wilhelmus, H., M.
发明人： LANGESLAG, Wilhelmus, H., M.
IPC分类号： H05B41/00
CPC分类号： H05B41/2883 , H05B41/2887 , H05B41/388 , Y02B20/202 , Y02B20/204
摘要： The invention relates to a ballast arrangement for igniting and operating a discharge lamp. The lamp is connected in a commutating bridge in series with an inductor and in parallel with a capacitor. The conductor and the capacitor jointly form a resonance circuit during an ignition phase. The bridge is then commutated at a comparatively high frequency. After the ignition phase, the lamp reaches a run-up phase, leading to a stable-operation phase. In the stable-operation phase, the bridge is commutated at a low frequency. According to the invention, the commutation frequency is lowered in steps from the comparatively high frequency during the ignition phase to the low frequency of the stable-operation phase so as to optimize current supply during the run-up phase.
摘要翻译：本发明涉及一种用于点燃和操作放电灯的镇流器装置。该灯连接在与电感器串联的整流桥中并与电容器并联。导体和电容器在点火阶段共同形成一个谐振电路。然后以相当高的频率换桥。在点火阶段之后，灯达到启动阶段，导致稳定运行阶段。在稳定运行阶段，桥接器以低频率换向。根据本发明，换向频率在点火阶段的较高频率到稳定运行阶段的低频阶段逐步降低，以便在起动阶段期间优化电流供应。

8. 发明申请

WO2003034795A1 METHOD AND APPARATUS FOR DRIVING A GAS DISCHARGE LAMP 审中-公开
标题翻译：用于驱动气体放电灯的方法和装置
公开(公告)号：WO2003034795A1
公开(公告)日：2003-04-24
申请号：PCT/IB2002/004205
申请日：2002-10-11
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , COUWENBERG, Winston, D. , LANGESLAG, Wilhelmus, H., M. , OOSTVOGELS, Ludovicus, F., J. , TOONEN, Johannis, A., A.
发明人： COUWENBERG, Winston, D. , LANGESLAG, Wilhelmus, H., M. , OOSTVOGELS, Ludovicus, F., J. , TOONEN, Johannis, A., A.
IPC分类号： H05B41/00
CPC分类号： H05B41/2888 , Y02B20/202
摘要： A method for driving a gas discharge lamp (1) is described, wherein electric first DC power is provided at a relatively high voltage and a relatively low current. Said first power is converted down to second DC power at a relatively low voltage and a relatively high current. Said second power is fed to a gas discharge lamp, preferably via a commutator. The conversion of said first power to said second power is performed in at least two steps, a first one of such steps including the step of converting down said first power to an intermediate DC power at an intermediate DC voltage lower (VM) than said first DC voltage but higher than said second DC voltage. A downconverter device (30) for use in a driving apparatus (10) for a gas discharge lamp (1) is described. The downconverter device comprises at least two downconverter units (31, 32) connected in series, for converting down said intermediate DC power to said second power.
摘要翻译：描述了一种用于驱动气体放电灯（1）的方法，其中在相对高的电压和相对低的电流下提供电的第一直流电力。所述第一功率在相对较低的电压和相对高的电流下被转换成第二DC功率。所述第二功率优选通过换向器供给到气体放电灯。所述第一功率到所述第二功率的转换是以至少两个步骤执行的，这些步骤中的第一个步骤包括将所述第一功率转换成比所述第一功率低的中间DC电压（VM）的中间DC功率的步骤直流电压但高于所述第二直流电压。描述了用于气体放电灯（1）的驱动装置（10）中的下变频器装置（30）。下变频器装置包括串联连接的至少两个下变频器单元（31,32），用于将所述中间直流电力转换成所述第二功率。

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