Multiple input output electrical isolation for use with electronic integrated circuits
First Claim
1. Apparatus having a plurality of electrical isolation means provided on a monolithic integrated circuit, each of said electrical isolation means being adapted to receive an input signal at an electrical isolation means input terminating region and to provide an output signal at an electrical isolation means output terminating region, said output signal being representative of said input signal, said electrical isolation means input terminating region and said electrical isolation means output terminating region being electrically isolated from one another and each of said isolation means comprising a first electrical impedance means having first and second terminating regions and being capable of changing in electrical impedance in response to a change in a first magnetic field, said first electrical impedance means being adapted to have a first electrical current established therethrough, and a first electrical conductor means proximate to said first electrical impedance means, said first electrical conductor means being electrically connected to said electrical isolation means input terminating region and being adapted to conduct a second electrical current representative of said input signal.
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Accused Products
Abstract
A plurality of electrical isolation devices are provided on a monolithic integrated circuit. Each of the isolation devices includes a current strap and a magnetic field sensor. The current strap is adapted to carry an electrical current representative of a signal to be transferred through that isolation device. The strength of the magnetic field produced by that current is measured by the magnetic field sensor.
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Citations
12 Claims
- 1. Apparatus having a plurality of electrical isolation means provided on a monolithic integrated circuit, each of said electrical isolation means being adapted to receive an input signal at an electrical isolation means input terminating region and to provide an output signal at an electrical isolation means output terminating region, said output signal being representative of said input signal, said electrical isolation means input terminating region and said electrical isolation means output terminating region being electrically isolated from one another and each of said isolation means comprising a first electrical impedance means having first and second terminating regions and being capable of changing in electrical impedance in response to a change in a first magnetic field, said first electrical impedance means being adapted to have a first electrical current established therethrough, and a first electrical conductor means proximate to said first electrical impedance means, said first electrical conductor means being electrically connected to said electrical isolation means input terminating region and being adapted to conduct a second electrical current representative of said input signal.
Specification