3-PHASE SOLAR CONVERTER CIRCUIT AND METHOD
    2.
    发明公开
    3-PHASE SOLAR CONVERTER CIRCUIT AND METHOD 有权
    3-PHASEN-SOLARWANDLERSCHALTUNG UND VERFAHREN

    公开(公告)号:EP1771780A2

    公开(公告)日:2007-04-11

    申请号:EP05759780.9

    申请日:2005-07-07

    IPC分类号: G05F1/67 H02M7/5387

    CPC分类号: H02M7/53875

    摘要: A conversion circuit for converting solar power into an alternating 3-phase maims (M) comprises a converter (conv) for converting the power from a solar cell (sc) into an unipolar converter output voltage provided between a first and a second converter output terminal of the converter, the converter having a constant power output regulation. The conversion circuit further comprises an inverter (Inv) for cyclically switching one of 3 3-phase output terminals to the first converter output terminal, one to the second converter output terminal and one intermittently to the first and second converter output terminal. With this conversion circuit and method, high capacity energy storage components (such as a capacitor having a large capacitance) can be avoided in the conversion circuit.

    摘要翻译: 用于将太阳能转换为交流3相电力交流电源的转换电路包括用于将来自太阳能电池的功率转换为设置在转换器的第一和第二转换器输出端之间的单极转换器输出电压的转换器,该转换器具有恒定的 电源输出调节。 转换电路还包括用于将3个三相输出端子中的一个循环地切换到第一转换器输出端子的逆变器,一个到第二转换器输出端子,一个间歇地切换到第一和第二转换器输出端子。 利用该转换电路和方法,可以避免转换电路中的高容量能量存储部件(例如具有大电容的电容器)。

    CASCADED POWER-OVER-ETHERNET SYSTEM
    4.
    发明公开
    CASCADED POWER-OVER-ETHERNET SYSTEM 有权
    级联功率以太网系统

    公开(公告)号:EP2577904A1

    公开(公告)日:2013-04-10

    申请号:EP11727539.6

    申请日:2011-05-30

    IPC分类号: H04L12/10 H04L12/40

    摘要: A Power-over-Ethernet (PoE) device (200) for use in a PoE system is described. The PoE device (200) comprising a first PoE port (210) for connecting the device to an upstream PoE device or a central control unit, a second PoE port (220) for connecting the device to a downstream device or PoE device and a control unit (240) for controlling data (335) and/or power communication (400) between the first (210) and second (220) PoE port. The control unit (240) further comprises a first power input terminal (305) connected to the first PoE port (210) to receive electrical power (320) for powering the control unit (240).

    摘要翻译: 描述用于PoE系统的PoE(PoE)设备(200)。 PoE设备(200)包括用于将设备连接到上游PoE设备或中央控制单元的第一PoE端口(210),用于将设备连接到下游设备或PoE设备的第二PoE端口(220)以及控制 单元(240),用于控制第一(210)和第二(220)PoE端口之间的数据(335)和/或功率通信(400)。 控制单元(240)还包括连接到第一PoE端口(210)以接收用于为控制单元(240)供电的电力(320)的第一电力输入端子(305)。

    DETERMINING STATES OF A PHYSICAL SYSTEM BY AN OBSERVER
    7.
    发明授权
    DETERMINING STATES OF A PHYSICAL SYSTEM BY AN OBSERVER 有权
    确定物理系统状况观察员

    公开(公告)号:EP1934658B1

    公开(公告)日:2009-09-02

    申请号:EP06809459.8

    申请日:2006-10-02

    IPC分类号: G05B17/02

    CPC分类号: G05B13/04

    摘要: Determining estimations of states of a physical system (2) by using an observer (4), which comprises a mathematical model (6) of the physical system. The observer (4) is supplied with a value of at least one entity (Y1, Y2, Y3, ...) of the physical system and values of input entities (IN) supplied to the system also, to provide estimated values of entities (Y1b, Y2b, Y3b, ...) of the model. At least one estimated value (Y1b) is compared with a related given reference value (Y1ref) to provide an error value (e1). The given reference value (Y1ref) is compared with the related monitored entity (Y1) and when (ttrig) becoming equal the error value (e1) is used for correction of the estimated values (Y1b, Y2b, Y3b, ...).

    GAS DISCHARGE LAMP IGNITION
    8.
    发明公开
    GAS DISCHARGE LAMP IGNITION 审中-公开
    激发的气体放电灯的

    公开(公告)号:EP1905279A1

    公开(公告)日:2008-04-02

    申请号:EP06780014.4

    申请日:2006-07-03

    IPC分类号: H05B41/288 H05B41/04

    摘要: Ignition of a gas discharge lamp 10, which has a gas containing main space and two inner electrodes, of a lighting unit 4 of a lighting system is achieved by the use of a high frequency resonance circuit. The resonance circuit is connected to the inner electrodes and to a supply device 2, which supplies an alternating supply voltage. An outer electrode 22 is arranged near one the inner electrodes and to a node of the resonance circuit. Upon supplying the supply voltage a high voltage alternating burst will be generated at the outer electrode. This will result into a discharge of the gas in the main space. In turn, this will induce a discharge of the remaining gas. Then the frequency of the supply voltage will increase and a small reactive current only will remain to flow through the resonance circuit.

    AC/DC CONVERTER CIRCUIT
    10.
    发明公开
    AC/DC CONVERTER CIRCUIT 有权
    GLEICHSTROM / WECHSELSTROM-UMRICHTERSCHALTUNG

    公开(公告)号:EP2524422A1

    公开(公告)日:2012-11-21

    申请号:EP11702703.7

    申请日:2011-01-04

    发明人: LUERKENS, Peter

    IPC分类号: H02M7/217 H02M7/06

    摘要: The invention relates to an AC/DC converter circuit (100) and a method for converting N≧2 AC supply voltages (U1, U2, U3) into DC voltage. This is achieved by feeding the AC supply voltages to first terminals (a1, a2, a3) of full bridge converters (11, 12, 13), wherein the second terminals (b1, b2, b3) of these rectifiers are coupled to each other. The outputs (d11, d1′, d2, d2′, d3, d3′) of the rectifiers are fed to the DC terminals of intermediate converters (21, 22, 23). The AC terminals (e1, e1′, e2, e2′, e3, e3′) of the intermediate converters are connected to the primary sides of transformers (31, 32, 33), wherein the secondary sides of these transformers are provided to further rectifiers (41, 42, 43). The circuit design allows using MosFETs of limited voltage capability for processing 380 V three-phase AC current, thus achieving a high efficiency.

    摘要翻译: 本发明涉及一种AC / DC转换器电路(100)以及将N≥2个AC电源电压(U1,U2,U3)转换为DC电压的方法。 这通过将AC电源电压馈送到全桥转换器(11,12,13)的第一端子(a1,a2,a3)来实现,其中这些整流器的第二端子(b1,b2,b3)彼此耦合 。 整流器的输出(d11,d1',d2,d2',d3,d3')馈送到中间转换器(21,22,23)的直流端子。 中间转换器的AC端子(e1,e1',e2,e2',e3,e3')连接到变压器(31,32,33)的初级侧,其中这些变压器的次级侧被提供给另外 整流器(41,42,43)。 电路设计允许使用具有有限电压能力的MosFET来处理380 V三相交流电流,从而实现高效率。