会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 89. 发明公开
    • MAGNETIC DIGITAL SIGNAL COUPLER
    • 数字磁带录像机
    • EP1068541A4
    • 2001-04-18
    • EP99909863
    • 1999-03-04
    • NONVOLATILE ELECTRONICS INC
    • DAUGHTON JAMES MFAYFIELD ROBERT THERMANN THEODORE MSTOKES JOHN F
    • G01R15/20G01R19/00G11B5/39H01F10/00H01L27/22H01L43/08H04B5/00G01R33/00
    • G01R15/205H01L2224/48137H01L2924/0102H01L2924/01025H01L2924/01077H01L2924/01078H01L2924/13091H01L2924/14H01L2924/19041H01L2924/30107H01L2924/3011H01L2924/3025H04B5/00H04B5/0043H04B5/005
    • A current determiner having an output at which representations of input currents are provided comprising an input conductor for the input current and a current sensor (23) supported on a substrate electrically isolated from one another but with the sensor positioned in the magnetic fields arising about the input conductor due to any input currents. The sensor extends along the substrate in a direction at an angle to the extent of the input conductor and is formed of at least a pair of thin-film ferromagnetic layers (16, 17) separated by a nonmagnetic layer (18) with one of these two ferromagnetic thin-film layers (16, 17) having a magnetization that is substantially maintained in selected directions. This first current sensor is spaced apart from the input conductor at least in part by a polymeric electrical insulating material (27), and the input conductor can be provided on a mechanically stiff base supported on such material and provided with an electric field interrupter (26) supporting such material between the first current sensor and the input conductor. The sensor can be electrically connected to an electronic circuitry formed in the substrate as a monolithic integrated circuit sharing a common reference, and two such monolithic integrated chips in a housing can provide duplex information signal transmission.
    • 具有输出的电流确定器,其输入电流的表示包括用于输入电流的输入导体和支撑在彼此电隔离的基板上的电流传感器,但是传感器位于围绕输入导体的磁场中 到任何输入电流。 传感器沿着与输入导体的程度成一定角度的方向沿着衬底延伸,并且由至少一对由非磁性层分离的薄膜铁磁层形成,这两个铁磁性薄膜层中的一个具有 尽管由输入电流产生的磁场导致这两个铁磁性薄膜层中剩余的一个的磁化方向的反转,但磁化强度基本保持在选定的方向。 该第一电流传感器至少部分地由聚合物电绝缘材料与输入导体间隔开,并且输入导体可以设置在支撑在这种材料上的机械刚性基底上,并且设置有电场断续器,其在该 第一电流传感器和输入导体。 传感器可以电连接到形成在基板中的电子电路,作为共享共同参考的单片集成电路,并且外壳中的两个这样的单片集成芯片可以提供双工信息信号传输。
    • 90. 发明公开
    • MAGNETICALLY COUPLED SIGNAL ISOLATOR USING A FARADAY SHIELDED MR OR GMR RECEIVING ELEMENT
    • MAGNETISCH GEKOPPELTER SIGNALISOLATOR MIT EINER FARADAY ABSCHIRMUNG DIE EIN MAGNETORESISTS MR / GMR EMPFANGSELEMENT GEBRAUCHT
    • EP1025681A1
    • 2000-08-09
    • EP98953848.3
    • 1998-10-21
    • ANALOG DEVICES, INCORPORATED
    • HAIGH, Geoffrey, T.NICKSON, Paul, R.
    • H04L25/02H04B5/00
    • H01L23/5227H01L2224/48091H01L2224/48137H01L2924/00014H01L2924/3025H04B5/0012H04B5/0043H04B5/005H04L25/0266Y02D70/42H01L2924/00H01L2224/45099
    • An isolator having a driver circuit which responsive to an input signal drives appropriate signals into one or more coils which are magnetically coupled to one or more corresponding MR or GMR elements whose resistance is variable in response to the magnetic field applied by the coil(s), and an output circuit that converts the resistance changes to an output signal corresponding to the input signal. A Faraday shield is interposed between the coil(s) and the MR or GMR elements. Common mode transients applied to the driver are capacitively coupled from the coil(s) into the Faraday shield and therethrough to ground, instead of into the MR elements. A second Faraday shield may be disposed in spaced relationship with the first Faraday shield and referenced to the potential of the MR elements for even greater common mode rejection. The entire structure may be formed monolithically as an integrated circuit on a single substrate, for low cost, small size, and low power consumption. With proper driver and receiver circuits, the isolator may transmit either analog or digital signals.
    • 具有响应于输入信号的驱动器电路的隔离器将适当的信号驱动到一个或多个线圈中,该线圈磁耦合到一个或多个对应的MR或GMR元件,其电阻响应于线圈施加的磁场而变化, 以及将电阻变化转换为对应于输入信号的输出信号的输出电路。 法拉第屏蔽被插入在线圈和MR或GMR元件之间。 施加到驱动器的共模瞬态电容从线圈电容耦合到法拉第屏蔽件中并且穿过其而不是MR元件。 第二法拉第屏蔽可以与第一法拉第屏蔽件隔开关系设置,并参考MR元件的电位以获得更大的共模抑制。 整个结构可以在单个衬底上作为集成电路单片形成,以便于低成本,小尺寸和低功耗。 使用适当的驱动器和接收器电路,隔离器可以传输模拟或数字信号。