Power converter
    1.
    发明授权
    Power converter 有权
    电源转换器

    公开(公告)号:US07839132B2

    公开(公告)日:2010-11-23

    申请号:US10534480

    申请日:2003-11-05

    IPC分类号: G05F1/00

    CPC分类号: H02M3/158 H02M2003/1566

    摘要: A power converter comprising an inductor for receiving energy from a power supply, and connected to the inductor an output capacitor for providing an output voltage. In order to ensure a quick compensation of a reduction of load at the voltage output using few output capacitors, an additional current path is arranged in parallel either to the inductor or to the capacitor, which additional current path can be opened and closed. A current flowing through the additional current path reaches basically immediately a desired value, when the additional current path is opened. Feedback means are moreover provided for opening the additional current path, when the output voltage reaches a predetermined maximum value.

    摘要翻译: 一种功率转换器,包括用于从电源接收能量的电感器,并且将电感器连接到用于提供输出电压的输出电容器。 为了确保使用少量输出电容器快速补偿在电压输出端的负载减小,额外的电流路径平行于电感器或电容器,该附加电流路径可以被打开和关闭。 当附加电流路径被打开时,流过附加电流路径的电流基本上达到期望值。 此外,当输出电压达到预定的最大值时,提供反馈装置用于打开附加电流路径。

    Converter for direct current-to-direct current downward conversion
    2.
    发明授权
    Converter for direct current-to-direct current downward conversion 失效
    转换器,用于直流电流向下转换

    公开(公告)号:US07239114B2

    公开(公告)日:2007-07-03

    申请号:US10521853

    申请日:2003-07-16

    IPC分类号: G05F1/613

    摘要: Described herein is a DC/DC down converter which includes a synchronous rectifier, a switching element at its input side, an inductance at its output side and an auxiliary circuit which includes an auxiliary switching element, an auxiliary rectifier and an auxiliary inductance, 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.

    摘要翻译: 这里描述的是DC / DC下变频器,其包括同步整流器,其输入侧的开关元件,其输出侧的电感和包括辅助开关元件,辅助整流器和辅助电感的辅助电路,辅助电感器 电路耦合到同步整流器,输入侧的开关元件和输出侧的电感之间的连接。

    Converter circuit and control method for same
    3.
    发明授权
    Converter circuit and control method for same 失效
    转换电路及其控制方法相同

    公开(公告)号:US07141957B2

    公开(公告)日:2006-11-28

    申请号:US10527854

    申请日:2003-09-17

    IPC分类号: G05F1/618

    CPC分类号: H02M1/38 H03K17/6871

    摘要: In known converter circuits switching losses occur, which are caused by reverse-recovery currents of a freewheeling diode. To reduce said switching losses it is proposed by the invention to drive the switching elements such that, upon switching from the second to the first switching element, the timing is controlled in such a manner that the shoot through currents and the conduction of the freewheeling diode are kept at a low value or, better still, are precluded. As regards the control mechanism, it is proposed to turn on the first switching element later if shoot through currents occur, and to turn on the first switching element sooner if conduction of the freewheeling diode occurs. Here, a time of overlap may be provided during which both switching elements are simultaneously conducting. For the control mechanism, the voltage across a switching element can be used as a measured input value.

    摘要翻译: 在已知的转换器电路中,发生由续流二极管的反向恢复电流引起的开关损耗。 为了减少所述开关损耗,本发明提出驱动开关元件,使得在从第二开关元件切换到第一开关元件时,以这样的方式控制时序,使得续流二极管的通过电流和导通 保持在低价值,还是更好地排除。 关于控制机构,如果发生穿越电流,则提出稍后接通第一开关元件,并且如果发生续流二极管的导通,则更快地接通第一开关元件。 这里,可以提供两个开关元件同时导通的重叠时间。 对于控制机构,开关元件两端的电压可以用作测量的输入值。

    Power converter
    4.
    发明申请
    Power converter 有权
    电源转换器

    公开(公告)号:US20060091867A1

    公开(公告)日:2006-05-04

    申请号:US10534480

    申请日:2003-11-05

    IPC分类号: G05F1/40

    CPC分类号: H02M3/158 H02M2003/1566

    摘要: The invention relates to a power converter comprising an inductor 6 for receiving energy from a power supply 1, and connected to the inductor 6 an output capacitor 7 for providing an output voltage. In order to ensure a quick compensation of a reduction of load at the voltage output using few output capacitors, it is proposed that an additional current path 11,12 is arranged in parallel either to the inductor 6 or to the capacitor 7, which additional current path 11,12 can be opened and closed. A current flowing through the additional current path 11,12 reaches basically immediately a desired value, when the additional current path 11,12 is opened. Feedback means are moreover provided for opening the additional current path 11,12, when the output voltage reaches a predetermined maximum value. The invention relates equally to a corresponding method.

    摘要翻译: 本发明涉及一种功率转换器,其包括用于从电源1接收能量的电感器6,并且将电感器6连接到用于提供输出电压的输出电容器7。 为了确保使用少量输出电容器快速补偿在电压输出端的负载减小,建议将附加电流路径11,12并联设置到电感器6或电容器7,该附加电流 路径11,12可以打开和关闭。 当附加电流路径11,12打开时,流过附加电流路径11,12的电流基本上达到期望值。 此外,当输出电压达到预定的最大值时,提供反馈装置用于打开附加电流路径11,12。 本发明同样涉及相应的方法。

    Converter for supplying pulsed power to light source
    5.
    发明授权
    Converter for supplying pulsed power to light source 有权
    用于向光源提供脉冲电源的转换器

    公开(公告)号:US09564824B2

    公开(公告)日:2017-02-07

    申请号:US13203338

    申请日:2010-02-23

    IPC分类号: H05B33/08 H02M3/337 H02M1/00

    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.

    摘要翻译: 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。

    DRIVER DEVICE AND DRIVING METHOD FOR DRIVING A LOAD, IN PARTICULAR AN LED UNIT
    6.
    发明申请
    DRIVER DEVICE AND DRIVING METHOD FOR DRIVING A LOAD, IN PARTICULAR AN LED UNIT 有权
    用于驱动负载,特别是LED单元的驱动装置和驱动方法

    公开(公告)号:US20140159611A1

    公开(公告)日:2014-06-12

    申请号:US14235302

    申请日:2012-07-25

    IPC分类号: H05B33/08

    摘要: 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.

    摘要翻译: 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。

    Switching circuit arrangement
    7.
    发明授权
    Switching circuit arrangement 有权
    开关电路布置

    公开(公告)号:US07852125B2

    公开(公告)日:2010-12-14

    申请号:US12302051

    申请日:2007-05-14

    IPC分类号: H03K3/00

    摘要: A switching circuit arrangement includes a field effect transistor and circuitry for biasing the gate voltage of the field effect transistor, e.g., forcing the gate voltage of the field effect transistor under a certain threshold. Reverse recovery and gate bounce are simultaneously mitigated. The biasing circuitry includes a biasing diode connected in series to the gate of the field effect transistor to bias the gate voltage of the field effect transistor. A clamping field effect transistor unit is connected between the gate of the field effect transistor and the source of the field effect transistor to force the gate voltage of the field effect transistor under a certain threshold.

    摘要翻译: 开关电路装置包括场效应晶体管和用于偏置场效应晶体管的栅极电压的电路,例如迫使场效应晶体管的栅极电压在一定阈值以下。 同时缓解反向恢复和门反弹。 偏置电路包括与场效应晶体管的栅极串联连接的偏置二极管以偏置场效应晶体管的栅极电压。 钳位场效应晶体管单元连接在场效应晶体管的栅极和场效应晶体管的源极之间,以迫使场效应晶体管的栅极电压达到一定阈值。

    LIGHTING DEVICE FOR FLOORS
    9.
    发明申请
    LIGHTING DEVICE FOR FLOORS 有权
    地板照明装置

    公开(公告)号:US20100052866A1

    公开(公告)日:2010-03-04

    申请号:US12514463

    申请日:2007-11-08

    IPC分类号: H05B37/00 H04Q5/22

    摘要: The invention relates to a lighting device, particularly a lighting tile (100, 100′) for paving e.g. a floor area (1), comprising a light emitting unit and an associated control unit. The control unit is adapted to detect the presence of a first nearby object (3) and to receive wireless signals from a second nearby object, for example from an RFID-tag (2) and/or an NFC-based device, carried by the first object (3). The lighting device may for instance be used in a method for guiding passengers through a public space like an airport.

    摘要翻译: 本发明涉及一种照明装置,特别是用于铺路的照明砖(100,100')。 (1),包括发光单元和相关联的控制单元。 控制单元适于检测第一附近物体(3)的存在并且从例如来自RFID标签(2)和/或基于NFC的设备的第二附近物体接收无线信号,所述RFID标签(2)和/或基于NFC的设备由 第一个对象(3)。 照明装置可以例如用于引导乘客通过诸如机场的公共空间的方法。