Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Magnetic saturation
Reexamination Certificate
2007-11-20
2007-11-20
Hollington, Jermele (Department: 2829)
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Magnetic saturation
Reexamination Certificate
active
11403544
ABSTRACT:
A Hall effect generator chip is mounted between adjacent ends of an annular, horseshoe spacer of nonmagnetic material. The generator is sensitive to the flux density (B field) tangential to its top and bottom surfaces. The spacer and generator are sandwiched between ferromagnetic rings, each having a small air gap overlying/underlying the generator. A circuit including the generator supplies an output linearly proportional to the current of an adjacent conductor with reduced hysteresis and small variability over a temperature range.
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Knudson Steven
Marion L. Mark
Woolsey Kevin
Christensen O'Connor Johnson & Kindness PLLC
Crane & Co.
Hollington Jermele
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