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85 条记录 (耗时 0.017 秒)

    A MV SWITCHING DEVICE OF THE ELECTROMAGNETIC TYPE
    51.
    发明公开
    A MV SWITCHING DEVICE OF THE ELECTROMAGNETIC TYPE 审中-公开

    公开(公告)号：EP3671798A1

    公开(公告)日：2020-06-24

    申请号：EP18215166.2

    申请日：2018-12-21

    申请人： ABB Schweiz AG

    发明人： Villano, Massimiliano ,  Penzo, Roberto

    IPC分类号： H01H47/02 ,  H01H47/22

    摘要： A switching device (1) for medium voltage applications comprising:
    - one or more electric poles, each comprising a movable contact (11) and a fixed contact (12) adapted to be coupled or uncoupled during a switching operation of said switching device;
    - an electromagnetic actuator (13) comprising a magnetic core (131), a coil arrangement (132) wound around said magnetic core and a movable plunger (133) operatively coupled to the movable contacts of said electric poles;
    - a control unit (14) for controlling switching operations of said switching device.
    Said electromagnetic actuator (13) comprises a conditioning circuit (135) adapted to modify the electric behaviour of said coil arrangement (132) when said conditioning circuit is electrically connected with said coil arrangement.
    Said conditioning circuit is electrically connected with or disconnected from said coil arrangement, when said movable contact (11) reaches or overruns a reference position (P) during a switching operation of said switching device.

    RELAY DRIVE CIRCUIT
    53.
    发明授权
    RELAY DRIVE CIRCUIT 有权

    公开(公告)号：EP3279916B1

    公开(公告)日：2019-10-30

    申请号：EP17182732.2

    申请日：2017-07-24

    申请人： Onkyo Corporation

    发明人： MURAI, Naofumi

    IPC分类号： H01H47/02 ,  H01H47/32

    摘要： The present invention is intended to provide constant drive conditions of a relay switch. A relay drive circuit includes a current mirror circuit, a current suppression circuit 26, and a transistor Q3. The current mirror circuit includes a transistor Q1, a first resistor element R1, a transistor Q2, and a second resistor element R2. A relay coil 18 is provided on a current supply path extending from a collector terminal of the transistor Q1 to an earth conductor. The current suppression circuit 26 includes a capacitor C1 as a current suppression element configured to suppress, after conduction between an emitter terminal and a collector terminal of the transistor Q2 has been made, the current flowing through the current suppression element itself as compared to that in such conduction.

    MAGNETIC RESISTANCE RELAY
    54.
    发明公开
    MAGNETIC RESISTANCE RELAY 审中-公开

    公开(公告)号：EP3336873A1

    公开(公告)日：2018-06-20

    申请号：EP16834668.2

    申请日：2016-08-11

    申请人： Multidimension Technology Co., Ltd.

    发明人： ZHOU, Zhimin ,  DEAK, James Geza

    IPC分类号： H01H47/02

    CPC分类号： G01R33/09 ,  H01H47/02 ,  H01L43/08

    摘要： A magnetoresistive relay (1), comprising a substrate (2), a magnetic excitation coil (3), a magnetoresistive sensor (4), and switch integrated circuit (5) which are placed on a substrate, which further includes an excitation signal input electrode (6), an excitation signal output electrode (7), a switch circuit positive output electrode (8), a switch circuit negative output electrode (9), a power input electrode (10), and a ground electrode (11). The ends of the magnetic excitation coil are each connected with the excitation signal input electrode and the excitation signal output electrodes. The signal from the magnetoresistive sensor is sent to the switch integrated circuit. The positive switch circuit output electrode and the switch circuit negative electrode are respectively connected with the switch integrated circuit. The power input ends and the ground ends of the switch integrated circuit and the magnetoresistive sensor are respectively connected with the power input electrode and the ground electrode. During operation, the magnetic field from the excitation coil provides an on/off signal, and this signal is used to change the magnetoresistance of the magnetoresistive sensor, the switch integrated circuit receives the signal from the magnetoresistive sensor, and from this the external output switching action is realized. This magnetoresistive relay is easy to operate, and it has low power consumption, small size, and long life span.