Integrated-circuit one-way isolation coupler incorporating one o

Details Integrated-circuit one-way isolation coupler incorporating one o Integrated-circuit one-way isolation coupler incorporating one o

1986-06-02

1989-01-31

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Magnetic

Magnetometers

357 27, 324244, 307309, G01R 3306, G01R 3302

Patent

active

048018830

ABSTRACT:
An integrated-circuit one-way isolation-coupler for a controlling electrical circuit and a controlled electrical circuit and improvements in carrier-domain magnetometers and other applications thereof. In the isolator a magnetic-field source, such as a flat coil, produces a magnetic field from current applied from the controlling circuit, while a detector such as a carrier-domain-magnetometer detects the magnetic field so produced and produces a signal therefrom. A dielectric medium, such as silicon dioxide or silicon nitride separates the source from the detector. The source, the detector, and the dielectric medium, are all incorporated on a single IC chip, such as silicon, or gallium arsenide, or semi-conductor material. An amplifier may also be incorporated and may deliver the amplified signal to the controlled circuit. Preferably there are two carrier domain-magnetometers located so that they are symmetrical with respect to the flat coil.

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