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    • 3. 发明授权
    • Magnetic digital signal coupler having selected/reversal directions of magnetization
    • 具有选择/反转磁化方向的磁数字信号耦合器
    • US06300617B1
    • 2001-10-09
    • US09261899
    • 1999-03-03
    • James M. DaughtonRobert T. FayfieldTheodore M. HermannJohn F. Stokes
    • James M. DaughtonRobert T. FayfieldTheodore M. HermannJohn F. Stokes
    • H01L3100
    • 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 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 separated by a nonmagnetic layer with one of these two ferromagnetic thin-film layers having a magnetization that is substantially maintained in a selected direction despite the magnetic fields arising from the input currents causing reversals of direction of magnetization of that remaining one of these two ferromagnetic thin-film layers. This first current sensor is spaced apart from the input conductor at least in part by a polymeric electrical insulating material, and the input conductor can be provided on a mechanically stiff base supported on such material and provided with an electric field interrupter supporting such material between the first current sensor and the input conductor. The sensor can be electrically connected to a 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包括输入电流的表示,其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,其中这两个铁磁性薄膜层中的一个具有 尽管从输入电流产生的磁场导致这两个铁磁性薄膜层中的剩余的一个的磁化方向的反转,但是基本保持在所选方向上的磁化。 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, 第一电流传感器和输入导体。 传感器可以电连接到形成在衬底中的电子电路,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。