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27 条记录 (耗时 0.011 秒)

    PRINTING APPARATUS AND POWER SUPPLY UNIT FOR PRINTING APPARATUS
    1.
    发明公开
    PRINTING APPARATUS AND POWER SUPPLY UNIT FOR PRINTING APPARATUS 审中-公开

    公开(公告)号：EP3340595A1

    公开(公告)日：2018-06-27

    申请号：EP17207556.6

    申请日：2017-12-15

    申请人： Seiko Epson Corporation

    发明人： KOIKE, Hirofumi ,  YAMADA, Tomonori ,  MATSUYAMA, Toru

    IPC分类号： H04N1/00 ,  B41J29/393

    CPC分类号： B41J23/00 ,  B41J2/01 ,  B41J29/38 ,  B41J29/393 ,  H02H1/00 ,  H02H1/0007 ,  H02H1/0023 ,  H02H5/04 ,  H02M1/32 ,  H04N1/00899 ,  H04N1/00978

    摘要： A printing apparatus that has a plurality of functions including a printing function of forming an image on a medium and is capable of executing printing with resolution of 300 dpi or more includes a plurality of operating units including a printing unit that forms an image on a medium; and a pow0065r supply unit that supplies power to the plurality of operating units. The power supply unit includes a substrate, an input terminal that receives an alternating voltage from a power cable electrically connected to an alternating power supply, a smoothing capacitor that smooths the alternating voltage input from the input terminal, a thermistor that detects a temperature, and a comparator that compares a signal output from the thermistor with a standard signal and outputs a notification signal. The input terminal, the smoothing capacitor, the thermistor, and the comparator are mounted on the substrate. The supply of power from the power supply unit is stopped based on the state of the notification signal. A gap between the input terminal and the thermistor is longer than a gap between the input terminal and the smoothing capacitor.

    CHARGER, TERMINAL DEVICE, AND CHARGING SYSTEM
    3.
    发明公开
    CHARGER, TERMINAL DEVICE, AND CHARGING SYSTEM 审中-公开

    公开(公告)号：EP3255754A4

    公开(公告)日：2018-03-28

    申请号：EP15887274

    申请日：2015-11-16

    申请人： HUAWEI TECH CO LTD

    发明人： LU HAIZHAO ,  LI SHUO

    IPC分类号： H02J7/00 ,  H02H3/02 ,  H02H3/087 ,  H02J5/00 ,  H02J7/04

    CPC分类号： H02J7/027 ,  H02H1/00 ,  H02H3/023 ,  H02H3/087 ,  H02J5/00 ,  H02J7/0029 ,  H02J7/0047 ,  H02J7/04 ,  H02J2007/0039

    摘要： The present invention discloses a charger, including a power conversion circuit, a charging interface, and an overcurrent protection circuit, where the charging interface includes a power cable, a ground cable, and a signal cable; and further including a resistor and a switch device, where a first end of the resistor is connected to the power cable, a second end of the resistor is connected to the signal cable, in a process in which the charger charges a terminal device and in a case in which a difference between a voltage of a first end of the switch device and a voltage of a second end of the switch device is greater than or equal to a first voltage threshold, the second end and a third end of the switch device are connected, so that the power cable and the ground cable are connected to generate an overcurrent, and the overcurrent protection circuit controls the power conversion circuit to stop current output. According to the charger provided in the embodiments of the present invention, the resistor is disposed between the power cable and the signal cable; therefore, a micro short circuit generated on the power cable and the signal cable can be detected according to a voltage drop generated on the signal cable, thereby controlling a charging process and improving charging security.

    APPARATUS AND METHOD FOR MEASURING THE DISSIPATION FACTOR OF AN INSULATOR
    6.
    发明公开
    APPARATUS AND METHOD FOR MEASURING THE DISSIPATION FACTOR OF AN INSULATOR 有权
    设备和方法测量因子ISOLATORS的损失

    公开(公告)号：EP2588871A1

    公开(公告)日：2013-05-08

    申请号：EP11735555.2

    申请日：2011-06-22

    申请人： Techimp Technologies S.r.l.

    发明人： ROLLI, Stefano ,  DE ROBERTIS, Gianpaolo ,  SERRA, Stefano ,  MONTANARI, Gian Carlo

    IPC分类号： G01R27/26

    CPC分类号： G01R27/2694 ,  H02H1/00 ,  H02H3/20

    摘要： An apparatus for measuring the loss factor of an insulator for medium or high voltages is equipped with a tap adapter forming a point for picking up an electrical signal, and comprises a reference capacitor having a first electrode connected to the tap adapter and a second electrode; a first voltage detection module is connected to the first electrode of the reference capacitor for detecting a signal representative of the voltage applied to the reference capacitor; an active electronic device is connected to earth and to the second electrode of the reference capacitor for keeping the potential of the second electrode at a predetermined reference value; a second voltage detection module is connected to an output of the active electronic device in order to detect a signal representative of the electric current that flows through the reference capacitor.

    METHOD FOR IDENTIFYING TYPE OF FAULT ON POWER LINE
    10.
    发明公开
    METHOD FOR IDENTIFYING TYPE OF FAULT ON POWER LINE 有权
    方法的错误类型，在电源线检测

    公开(公告)号：EP2446283A1

    公开(公告)日：2012-05-02

    申请号：EP09846370.6

    申请日：2009-06-26

    申请人： ABB Research Ltd.

    发明人： LI, Yongli ,  LI, Botong ,  CHEN, Li ,  SU, Bin

    IPC分类号： G01R31/08 ,  H02H3/26

    CPC分类号： H02H7/267 ,  G01R31/085 ,  H02H1/00

    摘要： A method for identifying a type of a fault on a power line comprises a step of calculating a fault point voltage at a fault point based on the terminal voltages and the fault location of the power line, a step of determining the fault point voltage corresponding to a maximum transition resistance as a setting value, a step of comparing the fault point voltage at the fault point with the setting value, and a step of identifying the type of the fault as a permanent type or a transient type based on the result of the comparison.