Electric current sensor employing hall effect generator

Details Electric current sensor employing hall effect generator Electric current sensor employing hall effect generator

1993-06-11

1995-05-16

Wieder, Kenneth A.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Magnetic saturation

327511, G01R 3302

Patent

active

054164079

ABSTRACT:
An electric current sensor employing a Hall effect generator to be used in measuring electrical currents flowing in an electrical conductor. The sensor comprises an amplifier, a constant current source, a gapped toroid core mounted on the component side of a printed circuit board (PCB), a Hall effect generator extending via its output leads from the PCB into the gap of the toroid core, and an inductive loop positioned at the edge of the gap of the toroid core. The inductive loop itself comprises a simple trace formed on the component side of the PCB together with its plated-through-holes extending from the component of the PCB to the printed circuit (clad) side of the PCB. The PCB inductive loop placed at the edge of the gap of the toroid core and connected in series opposition to the output leads of the Hall effect generator, compensates for the unwanted induced voltages in the output leads of the Hall generator.

REFERENCES:
patent: 3296573 (1967-01-01), Heid
patent: 3339129 (1967-08-01), Bulman
patent: 3551706 (1990-12-01), Chapman
patent: 4660018 (1987-04-01), Hatch
patent: 4660065 (1987-04-01), Carvajal
patent: 4752733 (1988-06-01), Fetr
patent: 4945306 (1990-07-01), Lowther
patent: 4994742 (1991-02-01), Lowther

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