United States of America As Represented by the Secretary of the Air Force

Nve Corporation

Nonvolatile Electronics, Incorporated

John F Stokes

James M Daughton

Robert T Fayfield

Theodore M Hermann

Erik H Lange

Alexander Templeton

A signal transmission system ( ) for providing electrical energization to a load electrically connected to a system output ( ) based on input signals provided to a system input ( ). The system ( ) has a condition determiner for determining the occurrence or absence of a selected condition. A pulser to provide the system output and the system input connected to an oscillator. The condition determiner is coupled to at least a selected one of the oscillator and the pulser to cause the pulser to provide electrical energization pulses at the system output based on the system input ( ).

Magnetic digital signal coupler monitor

A configuration where a wide range of current can be sensed accurately in spite of using a magnetic material with non-linearities and limited hysteresis. This configuration includes: a strip line current carrier, an IC chip containing a GMR sensor element, an integrated drive coil, like an isoloop. Field produced by current in the strip line is detected by the sensor. Feedback field is produced by current in an on-chip coil to counteract spurious fields from the strip line.

GMR high current, wide dynamic range sensor

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.

Magnetic digital signal coupler having selected/reversal directions of magnetization

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Rochester, MN, United States of America

John F Stokes