INPUT CURRENT SHAPING FOR TRANSITION AND DISCONTINUOUS MODE POWER CONVERTER
    83.
    发明公开
    INPUT CURRENT SHAPING FOR TRANSITION AND DISCONTINUOUS MODE POWER CONVERTER 有权
    塑造输入流电源转换器,过渡性和不连续的操作模式

    公开(公告)号:EP2673868A2

    公开(公告)日:2013-12-18

    申请号:EP12708424.2

    申请日:2012-02-10

    申请人: Power-One, Inc.

    IPC分类号: H02M1/42 G05F1/70 H02M3/158

    摘要: A power converter operable to draw an input current that is in phase with an input voltage of the power converter and proportional to a voltage of the input voltage of the power converter includes a drive switch, a waveform generator, and a current shaping circuit. The drive switch is connected between an input inductor and ground and draws current through the input inductor when turned on. The current shaping circuit provides an on-time of the drive switch for a next cycle of the drive switch as a function of an input current decay time, a switching period of the waveform generator, and an output voltage of the power converter. The waveform generator is responsive to the on-time provided by the current shaping circuit for selectively turning the drive switch on and off to cycle the drive switch as a function of the received on-time.

    POWER CONVERTER
    84.
    发明公开
    POWER CONVERTER 审中-公开
    电力转换器

    公开(公告)号:EP2560065A1

    公开(公告)日:2013-02-20

    申请号:EP11768744.2

    申请日:2011-04-05

    申请人: Hitachi, Ltd.

    IPC分类号: G05F1/70 H02J3/26

    摘要: In relation to a three-phase power converter that is formed with three clusters, each of which is a serial body including one or a plurality of unit cells, a circuit system and control method used by the three-phase power converter to output negative-phase sequence currents are provided.
    In a power converter that has a delta-connected cascade multi-level converter (CMC) linked to a power supply system, the CMC being formed by delta-connecting series circuit, each of which is formed with a reactor and a cluster, the cluster being a serial body formed with one or a plurality of unit cells, a positive-phase sequence reactive current and a negative-phase sequence current caused by an unbalanced load linked to the power supply system are substantially offset by a positive-phase sequence reactive current and a negative-phase sequence current that are simultaneously output by the power converter.

    摘要翻译: 关于由三个组形成的三相电力转换器,其中每一个是包括一个或多个单元电池的串联体,由三相电力转换器用于输出负电压的电路系统和控制方法, 提供相序电流。 在具有与供电系统连接的三角形连接的级联多电平转换器(CMC)的功率转换器中,CMC由三角形连接串联电路形成,其中每一个都由反应器和集群形成,集群 是由一个或多个单元电池形成的串联体,由与电源系统相连的不平衡负载引起的正相序无功电流和负序电流基本上被正相序无功电流 以及由功率转换器同时输出的负相序电流。

    POWER TRANSFER MANAGEMENT FOR LOCAL POWER SOURCES OF A GRID-TIED LOAD
    85.
    发明公开
    POWER TRANSFER MANAGEMENT FOR LOCAL POWER SOURCES OF A GRID-TIED LOAD 审中-公开
    LEISTUNGSÜBERTRAGUNGSVERWALTUNGFÜRÖRTLICHESTROMQUELLEN EINER NETZGEBUNDENEN LAST

    公开(公告)号:EP2399332A2

    公开(公告)日:2011-12-28

    申请号:EP10744379.8

    申请日:2010-02-19

    IPC分类号: H02J13/00 G05F1/70

    摘要: A power transfer system provides power factor conditioning of the generated power. Power is received from a local power source, converted to usable AC power, and the power factor is conditioned to a desired value. The desired value may be a power factor at or near unity, or the desired power factor may be in response to conditions of the power grid, a tariff established, and/or determinations made remotely to the local power source. Many sources and power transfer systems can be put together and controlled as a power source farm to deliver power to the grid having a specific power factor characteristic. The farm may be a grouping of multiple local customer premises. AC power can also be conditioned prior to use by an AC to DC power supply for more efficient DC power conversion.

    摘要翻译: 电力传输系统提供所产生电力的功率因数调节。 从本地电源接收电力,转换成可用的交流电源,并将功率因数调节到期望值。 期望的值可以是在或接近一个的功率因数,或者期望的功率因数可以响应于电网的条件,建立的电价和/或远程地对本地电源进行的确定。 许多源和功率传输系统可以放在一起并作为电源场来控制,以向具有特定功率因数特性的电网输送功率。 农场可能是多个当地客户处所的分组。 交流电源也可以在使用AC到DC电源之前进行调节,以实现更高效的直流电源转换。

    HARMONIC COMPENSATION CIRCUIT AND METHOD FOR AN LED LIGHT UNIT
    86.
    发明公开
    HARMONIC COMPENSATION CIRCUIT AND METHOD FOR AN LED LIGHT UNIT 有权
    谐波补偿电路及方法的LED照明单元

    公开(公告)号:EP2289142A1

    公开(公告)日:2011-03-02

    申请号:EP09766233.2

    申请日:2009-06-08

    IPC分类号: H02J3/01 G05F1/70 H05B33/08

    摘要: The present invention relates to a harmonic compensation circuit for compensating at least the third harmonic in the input current (I
    mains ) drawn by an LED light source (1) from a mains voltage supply (2), comprising: a signal input (21, 22) for receiving a first input signal proportional to the input voltage (V
    in ) of said LED light source (1) and a second input signal (V
    sh ) proportional to the LED current (I
    LED ) of said LED light source (1), a signal output (25) for outputting a compensation current (Icomp), a processing unit (24a, 24b) for comparing said second input signal (V
    sh ) to a reference signal (V
    Rb , V
    R7 ) and for generating said compensation current (I
    comp ) based on said comparison, the sum of said compensation current (I
    comp ) and said LED current (I
    LED ) being proportional to the input voltage (V
    in ) of said LED light source (1) and said compensation current (I
    comp ) being provided for minimizing at least the third harmonic in the input current (I
    mains ) drawn by said LED light source (1) from said mains voltage supply (2).

    POWER SUPPLY
    88.
    发明公开
    POWER SUPPLY 审中-公开
    电源

    公开(公告)号:EP2126655A2

    公开(公告)日:2009-12-02

    申请号:EP08732538.7

    申请日:2008-03-20

    IPC分类号: G05F1/70

    摘要: A power supply to provide electrical power to one or more loads. The power supply may include a resonant air core transformer to provide an adjustable and adaptable source of power to electronic devices. The power supply may include isolated primary-side circuitry and secondary-side circuitry. The primary-side circuitry may include control circuitry that, among other things, provides drive waveforms for the primary-side switching circuitry. In embodiments configured to produce AC output, the secondary-side circuitry may also include switching circuitry. The primary-side control circuitry may provide drive waveforms for the secondary-side switching circuitry. The secondary-side circuitry may include measurement circuitry that measures the current and/or voltage of the output and provides those measurements to the control circuitry through isolation circuitry. The control circuitry may adjust the drive waveforms for the primary-side and/or secondary-side switching circuitry as a function of the measured values.

    摘要翻译: 为一个或多个负载提供电力的电源。 电源可以包括谐振空气芯变压器以向电子设备提供可调节且可适应的电源。 电源可以包括隔离的初级侧电路和次级侧电路。 主侧电路可以包括控制电路,其中尤其为主侧开关电路提供驱动波形。 在被配置为产生AC输出的实施例中,次级侧电路还可以包括开关电路。 初级侧控制电路可以为次级侧开关电路提供驱动波形。 次级侧电路可以包括测量电路,其测量输出的电流和/或电压,并通过隔离电路将这些测量提供给控制电路。 控制电路可以根据测量值调整用于初级侧和/或次级侧开关电路的驱动波形。

    REGELVERFAHREN UND REGELVORRICHTUNG MIT MEHRKANALIGER RÜCKFÜHRUNG
    89.
    发明公开
    REGELVERFAHREN UND REGELVORRICHTUNG MIT MEHRKANALIGER RÜCKFÜHRUNG 有权
    规则的方法和控制设备多通道RETURN

    公开(公告)号:EP2111569A1

    公开(公告)日:2009-10-28

    申请号:EP08774952.9

    申请日:2008-07-09

    发明人: KRAH, Jens Onno

    CPC分类号: G05B21/02 G05B11/28 G05B11/42

    摘要: A closed-loop control method with multi-channel feedback is described, in which a feedback variable r1, which is determined by sampling a closed-loop control variable x with a sampling frequency fA, and a further feedback variable r2, which is determined by averaging the closed-loop control variable x over a time period Ts, are each separately compared with a guide variable w. Each of the control errors e1, e1, which are determined in the process is fed to a separate controller 31, 32 which respectively forms therefrom an individual closed-loop control output variable m1, m2. Finally, a closed-loop control output variable m, formed from the individual closed-loop control output variables m1, m2, is used to adjust the closed-loop control variable x so that the closed-loop control variable x follows the guide variable w.