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    • 3. 发明申请
    • DC- DC DRIVER DEVICE HAVING INPUT AND OUTPUT FILTERS, FOR DRIVING A LOAD, IN PARTICULAR AN LED UNIT
    • 具有输入和输出滤波器的DC-DC驱动器件,用于驱动负载,特别是LED单元
    • WO2012172459A1
    • 2012-12-20
    • PCT/IB2012/052841
    • 2012-06-06
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHELFERICH, ReinholdLOPEZ, Toni
    • ELFERICH, ReinholdLOPEZ, Toni
    • H02M3/158H05B33/08
    • H05B33/0809H02M3/158H05B33/0815H05B33/0845Y02B20/348
    • 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 (vr) from an external power supply, power output terminals (53, 54) for providing a drive voltage and/or current for driving a load (22), a half bridge unit (70) comprising a first (60) and second (61) switching element coupled in series between a high voltage node (57) and a low voltage node (58) and having a switch node (59) between said first and second switching elements, a buck-boost input filter unit (71) comprising a first inductor (Lm) and a series diode (Dm) coupled between a power input terminal (51, 52) and said half bridge unit (70), a buck output filter unit (72) comprising a second inductor (Lo, Lc) coupled between said half bridge unit (70) and a power output terminal (53, 54), an energy storage unit (73), and a control unit (64) for controlling said switching elements (60, 61).
    • 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经整流的电源电压(vr)的电力输入端子(51,52),用于提供用于驱动负载的驱动电压和/或电流的电力输出端子(53,54) 包括在高压节点(57)和低压节点(58)之间串联耦合并具有开关节点(59)的第一(60)和第二(61)开关元件的半桥单元(70) 在所述第一和第二开关元件之间,包括耦合在电源输入端子(51,52)和所述半桥单元(70)之间的第一电感器(Lm)和串联二极管(Dm)的降压 - 升压输入滤波器单元 ),包括耦合在所述半桥单元(70)和功率输出端子(53,54)之间的第二电感器(Lo,Lc)的降压输出滤波器单元(72),能量存储单元(73)和控制 单元(64),用于控制所述开关元件(60,61)。
    • 4. 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。
    • 8. 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。
    • 9. 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)。
    • 10. 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。