LEAKAGE CURRENT REDUCING APPARATUS
    41.
    发明申请
    LEAKAGE CURRENT REDUCING APPARATUS 有权
    泄漏电流减少装置

    公开(公告)号:US20130147419A1

    公开(公告)日:2013-06-13

    申请号:US13818860

    申请日:2011-06-16

    Abstract: In a system supplying power from an AC power supply to a three-phase motor via a converter and an inverter, a leakage current reducing apparatus is connected to a connection line between the AC power supply and the converter. A common mode transformer detects, as common mode voltage, common mode current flowing from the AC power supply to the connection line. The common mode voltage is inputted to a voltage amplifier via a filter apparatus. Output voltage obtained by voltage amplification passes through a capacitor and then is applied as an AC component to a neutral point of capacitors connected in a Y-connection fashion, so as to have the same phase as that of the common mode voltage. Thus, current having the same phase as that of the common mode current is supplied via the capacitors to the converter through the connection line, thereby reducing the common mode current.

    Abstract translation: 在通过转换器和逆变器从AC电源向三相电动机供电的系统中,将漏电流降低装置连接到AC电源和转换器之间的连接线。 共模变压器作为共模电压检测从AC电源流向连接线的共模电流。 共模电压通过滤波器装置输入到电压放大器。 通过电压放大获得的输出电压通过电容器,然后作为交流分量施加到以Y形连接方式连接的电容器的中性点,以便具有与共模电压相同的相位。 因此,具有与共模电流相同相位的电流通过电容器经由连接线被提供给转换器,从而降低共模电流。

    PRINTING APPARATUS AND PROCESSING METHOD THEREFOR
    45.
    发明申请
    PRINTING APPARATUS AND PROCESSING METHOD THEREFOR 审中-公开
    打印设备及其处理方法

    公开(公告)号:US20120033006A1

    公开(公告)日:2012-02-09

    申请号:US12964070

    申请日:2010-12-09

    Abstract: A printing apparatus includes a full-line printhead in which a plurality of chips, on each of which a plurality of nozzle arrays are juxtaposed, are arranged in the nozzle arrayed direction, and which prints by the entire width of a printing medium using a plurality of nozzles arranged on the plurality of chips. The printing apparatus discharges ink from a predetermined number of successive nozzles on each nozzle array of each chip toward a printing medium during conveyance, thereby forming a plurality of first patterns corresponding to at least one nozzle array of each chip on the printing medium in the nozzle arrayed direction, reads the plurality of first patterns from the printing medium during conveyance using a sensor, calculates the shift amount of an ink attached position based on the plurality of read first patterns and corrects the attached position of ink based on the shift amount.

    Abstract translation: 打印装置包括全线打印头,其中多个喷嘴阵列并置的多个芯片沿喷嘴排列方向布置,并且使用多个打印装置打印整个打印介质的宽度 喷嘴布置在多个芯片上。 打印装置在输送期间将每个芯片的每个喷嘴阵列上的预定数量的连续喷嘴的墨水排出到打印介质,从而形成与喷嘴中的打印介质上的每个芯片的至少一个喷嘴阵列相对应的多个第一图案 基于多个读取的第一图案计算墨水附着位置的偏移量,并根据移动量校正墨水的安装位置,从而在打印介质中使用传感器读取多个第一图案。

    LEAKAGE CURRENT REDUCTION APPARATUS
    46.
    发明申请
    LEAKAGE CURRENT REDUCTION APPARATUS 失效
    泄漏电流减少装置

    公开(公告)号:US20110317455A1

    公开(公告)日:2011-12-29

    申请号:US13254497

    申请日:2010-03-04

    CPC classification number: H02P27/06 H02M7/48 H02M2001/123

    Abstract: Three-phase windings 11-13 and 21-23 of a first common-mode transformer 1 and a second common-mode transformer 2 are connected in series through connecting lines 8r-8t, respectively. The windings 11-13 are connected to an unillustrated AC power supply by connecting lines 91r-91t. The windings 21-23 are connected to a three-phase motor by connecting lines 93r-93t and through a converter and an inverter which are unillustrated. A winding 14 for common-mode voltage detection detects high-frequency leakage currents flowing through the connecting lines 91r-91t as a common-mode voltage V1, and an output voltage V2 obtained by voltage amplification by a voltage amplifier 3 is applied to a winding 24 for common-mode voltage application in such a manner that the output voltage V2 works in generally the same direction as the common-mode voltage V1, thereby canceling out the high-frequency leakage currents through the windings 21-23. Since a voltage amplification method is used, it is possible to reduce the high-frequency leakage currents with a simpler configuration as compared to a conventional current amplification method.

    Abstract translation: 第一共模变压器1和第二共模变压器2的三相绕组11-13和21-23分别通过连接线8r-8t串联连接。 绕组11-13通过连接线91r-91t连接到未示出的AC电源。 绕组21-23通过连接线93r-93t并通过未示出的转换器和逆变器连接到三相电动机。 用于共模电压检测的绕组14检测作为共模电压V1流过连接线91r-91t的高频漏电流,并且通过电压放大器3通过电压放大获得的输出电压V2被施加到绕组 24,用于共模电压施加,使得输出电压V2与共模电压V1大致相同的方向工作,从而消除通过绕组21-23的高频漏电流。 由于使用电压放大方法,与传统的电流放大方法相比,可以以更简单的配置来降低高频漏电流。

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