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    • 11. 发明申请
    • CONVERTER FOR SUPPLYING PULSED POWER TO LIGHT SOURCE
    • 转换器将脉冲电源供应给光源
    • WO2010097752A1
    • 2010-09-02
    • PCT/IB2010/050778
    • 2010-02-23
    • PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHKONINKLIJKE PHILIPS ELECTRONICS N.V.DEPPE, CarstenELFERICH, Reinhold
    • DEPPE, CarstenELFERICH, Reinhold
    • H02M3/337H05B33/08
    • H02M3/337H02M2001/0058H05B33/0818Y02B20/346Y02B70/1491
    • 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.
    • 用于向光源(8)提供脉冲功率的转换器(1)包括用于调整开关部件(2)的开关参数的开关部件(2)和控制部件(3),以提高性能。 切换部分(2)可以包括在循环的第一时间间隔期间处于第一/第二模式的第一/第二开关(41,42),并且反之亦然,在循环的第二时间间隔期间。 一组循环产生脉冲功率的脉冲。 可以缩短诸如第一周期的第一时间间隔的切换参数以减少过冲。 可以缩短或延长诸如第一周期的第二时间间隔的切换参数。 诸如最后一个周期的第二时间间隔的切换参数可以被延长或缩短以减少过冲。 用于切换光源(8)的第三开关(93)被激活并被延迟地去激活以改善瞬态行为。
    • 16. 发明申请
    • SWITCHING CIRCUIT ARRANGEMENT
    • 切换电路布置
    • WO2007138509A2
    • 2007-12-06
    • PCT/IB2007/051806
    • 2007-05-14
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHLOPEZ, ToniELFERICH, Reinhold
    • LOPEZ, ToniELFERICH, Reinhold
    • H03K17/16
    • H02M1/08H03K17/0822H03K17/166H03K17/687H03K2217/0036
    • 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.
    • 开关电路装置(100)包括用于偏置场效应晶体管(40)的栅极电压的场效应晶体管(40)和电路(50,52,54,60,62),特别是迫使栅极电压 场效应晶体管(40)在特定阈值下,特别是在一定的正阈值电平下。 在实施例中,反向恢复以及门反弹同时被减轻。 在一个实施例中,偏置电路包括与场效应晶体管(40)的栅极(G)串联连接以偏置场效应晶体管(40)的栅极电压的偏置二极管(52)以及钳位 场效应晶体管单元(62)连接在场效应晶体管(40)的栅极(G)和场效应晶体管(40)的源极(S)之间,以迫使场效应晶体管(40)的栅极电压在 特定的阈值水平。
    • 17. 发明申请
    • SINGLE SWITCH DRIVER DEVICE HAVING LC FILTER, FOR DRIVING A LOAD, IN PARTICULAR AN LED UNIT
    • 具有LC过滤器的单开关驱动器件,用于驱动负载,特别是LED单元
    • WO2012172472A1
    • 2012-12-20
    • PCT/IB2012/052936
    • 2012-06-11
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHLOPEZ, ToniELFERICH, Reinhold
    • LOPEZ, ToniELFERICH, Reinhold
    • H05B33/08
    • H05B33/0815Y02B20/346
    • The present invention relates to a driver device (50a-50f) and a corresponding method for driving a load (22), in particular an LED unit comprising one or more LEDs (23). The proposed driver device comprises power input terminals (51, 52) for receiving a rectified supply voltage from an external power supply, power output terminals (53, 54) for providing a drive voltage and/or current for driving a load (22), a single stage power conversion unit (66a, 66b, 66c) coupled to the power input terminals (52) comprising a single switching element (60) and an energy storage element (Ch), both coupled to a switch node (55), wherein the power output terminals (53, 54) are represented by the output of said stage power conversion unit, a filter unit (68) coupled to said switch node (55), said filter unit comprising a filter inductor (Lc) and a filter capacitor (Cs), and a control unit (58) for controlling said switching element (60).
    • 本发明涉及一种用于驱动负载(22)的驱动器装置(50a-50f)和相应的方法,特别是包括一个或多个LED(23)的LED单元。 所提出的驱动器装置包括用于从外部电源接收整流的电源电压的电源输入端子(51,52),用于提供用于驱动负载(22)的驱动电压和/或电流的电力输出端子(53,54) 耦合到功率输入端子(52)的单级功率转换单元(66a,66b,66c),其包括耦合到开关节点(55)的单个开关元件(60)和能量存储元件(Ch),其中 功率输出端子(53,54)由所述级功率转换单元的输出,耦合到所述开关节点(55)的滤波器单元(68)表示,所述滤波单元包括滤波电感器(Lc)和滤波电容器 (Cs)和用于控制所述开关元件(60)的控制单元(58)。
    • 18. 发明申请
    • DRIVER CIRCUIT FOR DRIVING A LOAD CIRCUIT
    • 用于驱动负载电路的驱动器电路
    • WO2011101761A2
    • 2011-08-25
    • PCT/IB2011/050436
    • 2011-02-01
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHELFERICH, Reinhold
    • ELFERICH, Reinhold
    • H02M3/335
    • H02M3/33523H02M3/33561H05B33/0815
    • Driver circuits (1) for driving load circuits comprise transformer circuits (21) with primary side windings to be coupled to source circuits and with secondary side windings to be coupled to the load circuits. By providing the driver circuits (1) with determination circuits (22) for determining secondary side currents as functions of primary side currents, primary side voltages, primary side inductances and transformer ratios, the secondary side currents can be determined solely at primary sides of the transformer circuits (21). Functions may define secondary side currents to be proportional to differences between first signals proportional to integrals of primary side voltages divided by primary side inductances and second signals proportional to primary side currents, the differences being multiplied by the transformer ratios. The primary side inductances may be inductances measured at primary sides and the transformer ratios may be voltage ratios of the transformer circuits (21), both for open secondary sides of the transformer circuits (21).
    • 用于驱动负载电路的驱动器电路(1)包括变压器电路(21),所述变压器电路(21)具有待耦合到源电路的初级侧绕组以及耦合到所述负载电路的次级侧绕组。 通过为驱动电路(1)提供用于确定作为初级侧电流,初级侧电压,初级侧电感和变压比的函数的次级侧电流的确定电路(22),次级侧电流可以仅在 变压器电路(21)。 函数可以定义次级侧电流与第一信号之间的差值成比例,第一信号与初级侧电压除以初级侧电感的积分成比例,第二信号与初级侧电流成比例,差值乘以变压器比率。 初级侧电感可以是在初级侧测量的电感,并且变压器比可以是变压器电路(21)的电压比,两者都用于变压器电路(21)的开放次级侧。
    • 20. 发明申请
    • DRIVER DEVICE AND DRIVING METHOD FOR DRIVING A LOAD, IN PARTICULAR AN LED UNIT
    • 用于驱动负载,特别是LED单元的驱动装置和驱动方法
    • WO2013017994A1
    • 2013-02-07
    • PCT/IB2012/053789
    • 2012-07-25
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHELFERICH, ReinholdLOPEZ, ToniRADERMACHER, Harald Josef Guenther
    • ELFERICH, ReinholdLOPEZ, ToniRADERMACHER, Harald Josef Guenther
    • H05B33/08H02M1/00
    • H05B33/0845H02M3/158H05B33/0803H05B33/0815Y02B20/348
    • The present invention relates to a driver device and a corresponding driving method for driving a load (22), in particular an LED unit, said driver device comprising power input terminals (51, 52) for receiving a periodic supply voltage from an external power supply potentially including a dimmer for dimming said periodic supply voltage,power output terminals (53, 54) for providing a drive voltage and/or drive current for driving a load (22), a power stage (70a, 70b, 70c, 70d) coupled between the power input terminals and the power output terminals for controlling an input current received from said power input terminals to draw a high power from said external power supply in a first mode or to draw a low or no power from said external power supply in a second mode, said high power being higher than the power required for driving said load and said low power being lower than the power required for driving said load, wherein said power stage controls said input current to be in the second mode only for a percentage of half cycle periods of a number of subsequent half cycle periods of said supply voltage, and for providing said drive voltage and/or drive current to said power output terminals in said first mode, and an energy storage unit (90) coupled to said power stage for storing electrical energy provided at said power input terminals in said first mode and for providing stored electrical energy to said load via said power output terminals in said second mode.
    • 本发明涉及用于驱动负载(22),特别是LED单元的驱动器装置和相应的驱动方法,所述驱动器装置包括用于从外部电源接收周期性电源电压的电力输入端子(51,52) 潜在地包括用于调光所述周期性电源电压的调光器,用于提供用于驱动负载(22)的驱动电压和/或驱动电流的功率输出端子(53,54),耦合的功率级(70a,70b,70c,70d) 在所述电力输入端子和所述电力输出端子之间,用于控制从所述电力输入端子接收的输入电流,以在第一模式中从所述外部电源抽取高功率,或者从所述外部电源中抽取低电力或不用电力 第二模式,所述高功率高于驱动所述负载所需的功率,所述低功率低于驱动所述负载所需的功率,其中所述功率级将所述输入电流控制在所述第二模式中 nd模式仅用于所述电源电压的后续半周期数量的半周期百分比的百分比,并且用于在所述第一模式中向所述功率输出端提供所述驱动电压和/或驱动电流,以及能量存储单元 90),其耦合到所述功率级,用于存储在所述第一模式中提供在所述电力输入端处的电能,并且用于在所述第二模式中经由所述功率输出端将所存储的电能提供给所述负载。