Non-inductive lead path hall effect electrical current sensor

Details Non-inductive lead path hall effect electrical current sensor Non-inductive lead path hall effect electrical current sensor

1997-04-18

1999-07-13

Nguyen, Vinh P.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Magnetic saturation

G01R 3302

Patent

active

059231629

ABSTRACT:
An electric current sensor employing a Hall effect generator to be used in measuring electrical currents flowing in a current carrying conductor including a printed circuit board, an amplifier, a control current source, a toroid core having a gap, a Hall effect generator, and first and second traces configured on the printed circuit board so as to be non-inductive when exposed to the impinging magnetic field concentrated by the toroid core across the gap and across the Hall effect generator. The non-inductive configuration of the first and second traces is composed of a plated through hole electrically coupling the first and second traces to form a loop having a loop area equal to zero that is perpendicular to the directional flow of the impinging magnetic field thereby preventing the generation of unwanted induced voltages in the current sensor.

REFERENCES:
patent: 3551706 (1970-12-01), Chapman
patent: 5146156 (1992-09-01), Marcel
patent: 5416407 (1995-05-01), Drafts

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