Converter for supplying pulsed power to light source
    1.
    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
    2.
    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
    3.
    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
    5.
    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。

    Circuit configuration comprising a control loop
    7.
    发明授权
    Circuit configuration comprising a control loop 失效
    电路配置包括控制回路

    公开(公告)号:US06898091B2

    公开(公告)日:2005-05-24

    申请号:US10479091

    申请日:2002-05-30

    摘要: A circuit arrangement is disclosed with a regulating circuit which is particularly used for regulating a resonant converter having a plurality of outputs. The arrangement includes a protective circuit that can be constructed with the least possible circuitry and cost. The regulating circuit is used for generating a pulse-width modulated regulation signal (20) in dependence on measuring signals (Va, Vb) present on inputs of the regulating circuit (20). The arrangement further includes a comparator circuit (212) for comparing the duty cycle (δ) of the regulation signal (20) with a predefinable maximum duty cycle value (δmax) and minimum duty cycle value (δmin), in which in case of a duty cycle (δ) situated outside the range between the maximum duty cycle value (δmax) and the minimum duty cycle value (δmin) the circuit arrangement delivers control information that corresponds to this exceeding of the range.

    摘要翻译: 公开了具有调节电路的电路装置,该调节电路特别用于调节具有多个输出的谐振转换器。 该装置包括可以以最不可能的电路和成本构造的保护电路。 调节电路用于根据存在于调节电路(20)的输入端上的测量信号(Va,Vb)产生脉宽调制调节信号(20)。 该装置还包括比较器电路(212),用于将调节信号(20)的占空比(delta)与可预定的最大占空比值(deltamax)和最小占空比值(deltamin)进行比较,其中在 位于最大占空比值(deltamax)和最小占空比值(deltamin)之间的范围之外的电路布置的占空比(delta)传递对应于超出该范围的控制信息。

    Feedback circuit for zero-voltage-switching converter
    8.
    发明授权
    Feedback circuit for zero-voltage-switching converter 有权
    零电压开关转换器的反馈电路

    公开(公告)号:US08729830B2

    公开(公告)日:2014-05-20

    申请号:US13505547

    申请日:2010-10-29

    申请人: Reinhold Elferich

    发明人: Reinhold Elferich

    IPC分类号: H05B37/02

    摘要: A feedback circuit for a zero-voltage-switching converter (1) for feeding a load circuit (2, 3), which converter (1) comprises a chopper (4), a driver (5) and a resonant tank (6), is provided with an arrangement (10) for receiving a first signal derived from a resonant tank signal and a second signal derived from a load circuit signal and for generating in response thereto a control signal for the driver (5). Such converters (1) can stand feeding voltage fluctuations and load variations relatively well. The arrangement (10) may comprise an error circuit (12) for, in response to the second signal and a reference signal, generating an error signal, and a combiner circuit (13) for, in response to the first signal and the error signal, generating the control signal. The same converter (1) may be used for supplying two or more load circuits (2, 3), in which case an error circuit (15) may generate an error signal and a duty cycle signal or two error signals.

    摘要翻译: 一种用于馈送负载电路(2,3)的零电压切换转换器(1)的反馈电路,该转换器(1)包括斩波器(4),驱动器(5)和谐振槽(6) 设置有用于接收从谐振槽信号导出的第一信号和从负载电路信号导出的第二信号并且响应于此产生用于驱动器(5)的控制信号的装置(10)。 这种转换器(1)可以相对较好地承受供电电压波动和负载变化。 布置(10)可以包括用于响应于第二信号和参考信号产生误差信号的响应于第一信号和误差信号的组合器电路(13)的误差电路(12) ,产生控制信号。 相同的转换器(1)可以用于提供两个或更多个负载电路(2,3),在这种情况下,误差电路(15)可以产生误差信号和占空比信号或两个误差信号。

    DRIVER DEVICE AND DRIVING METHOD FOR DRIVING A LOAD, IN PARTICULAR AN LED UNIT
    9.
    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:US20140117867A1

    公开(公告)日:2014-05-01

    申请号:US14124737

    申请日:2012-06-04

    IPC分类号: H05B33/08

    摘要: The present invention relates to a driver device (50a-50j) 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 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 half-bridge unit (70) comprising a first (60) and a 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 said second switching element, a boost input filter unit (71) comprising a first inductor (L1) coupled between said power input terminals (51, 52) and said half-bridge unit (70), a buck output filter unit (72) comprising a second inductor (L2) 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).

    摘要翻译: 本发明涉及一种用于驱动负载(22),特别是LED单元的驱动装置(50a-50j)和驱动装置,所述驱动装置包括用于接收整流电源电压的电源输入端(51,52) 用于提供用于驱动负载(22)的驱动电压和/或电流的功率输出端子(53,54);半桥单元(70),包括第一(60)和第二(61) )开关元件串联耦合在高压节点(57)和低压节点(58)之间,并且在所述第一和所述第二开关元件之间具有开关节点(59);升压输入滤波器单元(71),包括 耦合在所述电源输入端(51,52)和所述半桥单元(70)之间的第一电感器(L1),降压输出滤波器单元(72),包括耦合在所述半桥单元 70)和功率输出端子(53,54),能量存储单元(73)和控制单元(64),用于控制所述开关 铰链元件(60,61)。

    DRIVER DEVICE AND DRIVING METHOD FOR DRIVING A LOAD, IN PARTICULAR AN LED UNIT
    10.
    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:US20130221865A1

    公开(公告)日:2013-08-29

    申请号:US13882619

    申请日:2011-10-31

    IPC分类号: H05B33/08

    CPC分类号: H05B33/0815

    摘要: The present invention relates to a driver device (50a-50e)and a corresponding driving method for driving a load (22), in particular an LED unit comprising a power input unit (52) for receiving an input voltage (V20) from an external power supply and for providing a rectified supply voltage (V52), a power conversion unit (54) for converting said supply voltage (V52) to a load current (154) for powering the load (22), a charge capacitor (56) for storing a charge and powering the load (22) when insufficient energy for powering the load (22) and/or the power conversion unit (54) is drawn from said external power supply (20) at a given time, and a control unit (58) for controlling the charging of said charge capacitor(56) by said supply voltage (V52) to a capacitor voltage (V56) that can be substantially higher than the peak voltage (V52) of said supply voltage and for powering the load(22).

    摘要翻译: 本发明涉及一种用于驱动负载(22)的驱动装置(50a-50e)和相应的驱动方法,特别是涉及一种用于从外部接收输入电压(V20)的电力输入单元(52)的LED单元 电源,用于提供整流电源电压(V52);电源转换单元(54),用于将所述电源电压(V52)转换为用于为负载(22)供电的负载电流(154);电荷电容器(56),用于 在给定时间从所述外部电源(20)抽出负载(22)和/或电力转换单元(54)的供电不足的能量时,对负载(22)进行存储和供电,以及控制单元 58),用于通过所述电源电压(V52)将所述充电电容器(56)的充电控制到可以显着高于所述电源电压的峰值电压(V52)并为负载(22)供电的电容器电压(V56) )。