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    • 54. 发明公开
    • MAGNETORESISTIVE CURRENT LIMITER
    • 磁阻限制器
    • EP3029792A1
    • 2016-06-08
    • EP14832951.9
    • 2014-07-25
    • Multidimension Technology Co., Ltd.
    • ZHOU, ZhiminDEAK, James Geza
    • H02H9/02H01L43/08
    • H01C7/13G01R33/091G01R33/098H01L43/08H02H9/02
    • A magnetoresistive current limiter, comprising a substrate (1), a magnetoresistive sensor layer (2), a first insulating layer, a coil (4), a second insulating layer, a magnetic shield layer (6), and an input electrode (8) and output electrode (7). The coil (4) is located between the magnetic shield layer (6) and the magnetoresistive sensor layer (2); The first and second insulating layers are isolated from the magnetoresistive sensor layer (2) and the coil (4), and from the coil (4) and the magnetic shield layer (6), respectively; the magnetoresistive sensor layer (2) and the coil (4) are connected in series, and are connected to the input electrode (8) and the output electrode (7). The magnetoresistive sensor layer (2) comprises N rows of array-type magnetic tunnel junction lines; the coil (4) comprises 2*N+M (N>1, M=-1 or 3) conductive lines in series or N+M (N>1, M=0 or 2) conductive lines in parallel; current flows in the same direction into the conductive lines located above or below the tunnel junction lines and produces, at the magnetic tunnel junction lines, a uniform magnetic field. The magnetic tunnel junction of the magnetically sensitive axis is perpendicular to the magnetic tunnel junction lines, and the magnetoresistive sensor layer (2) has the feature of a monotonic or axisymmetric linear rise in resistance to the magnetic field. The magnetoresistive current limiter has the features of rapid response, continuous operation, and ability to increase or decrease current.
    • 58. 发明授权
    • COMPOSITE CIRCUIT PROTECTION DEVICE AND METHOD OF MAKING THE SAME
    • 复合电路和方法生产同样
    • EP1074027B1
    • 2006-12-27
    • EP99919838.5
    • 1999-04-13
    • TYCO Electronics Corporation
    • CHIANG, JustinFANG, Shou-MeanBEADLING, William, C.
    • H01C7/13H01C13/02H01C1/14H01C7/02H01C17/00
    • H01C13/02H01C1/1406H01C7/027H01C7/13H01C17/006
    • A composite circuit protection device (10) includes first and second laminar circuit protection devices (11, 12), and an optional laminar insulating member (53). Each of the first and second laminar circuit protection devices includes (1) a first laminar electrode (13); (2) a second laminar electrode (15); (3) a laminar PTC resistive element (17) which (i) exhibits PTC behavior and (ii) has a first face to which the first electrode is secured and an opposite second face to which the second electrode is secured; (4) a third laminar conductive member (49) which (i) is secured to the second face of the PTC resistive element, and (ii) is spaced apart from the second electrode; (5) a fourth laminar conductive member (35) which (i) is secured to the first face of the PTC resistive element, and (ii) is spaced apart from the first electrode; (6) a first transverse conductive member (51) which runs between the first and second faces of the PTC element, is secured to the PTC element, and is physically and electrically connected to the first laminar electrode and to the third laminar conductive member, but is not connected to the second laminar electrode, and (7) a second transverse conductive member (31) which runs between the first and second faces of the PTC element, is secured to the PTC element, and is physically and electrically connected to the second laminar electrode and to the fourth laminar conductive member, but is not connected to the first laminar electrode. The first and second laminar devices are physically secured together in a stacked configuration, with the laminar insulating member between them, if present; and the devices are connected together electrically by interfacial electrical connections (54) between adjacent electrodes and laminar conductive members so that when an electtrical power supply is connected to (i) one of the electrodes and (ii) the third or fourth laminar member on the same face of the PTC resistive element as the electrode (i), the first and second laminar circuit protection devices are connected electrically in parallel.