Current sensor

Details Current sensor Current sensor

2008-10-22

2009-12-15

Nguyen, Ha Tran T (Department: 2829)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With coupling means

C324S126000, C324S11700H

Reexamination Certificate

active

07633287

ABSTRACT:
A core is divided by alternately arranging plural magnetic material portions and plural non-magnetic material portions in a circumferential direction of the core through which a primary conductor penetrates. A conductor is wound around the core under conditions in which each core cross section of the core intersects the magnetic material portion and the non-magnetic material portion, each core cross section including a cut end surface of each conductor of a secondary winding wound around the core, and a ratio of a magnetic material portion cross-sectional area of the magnetic material portion to a non-magnetic material portion cross-sectional area of the non-magnetic material portion at the core cross section is kept constant at each core cross section.

REFERENCES:
patent: 2004-95935 (2004-03-01), None
patent: 2004-153222 (2004-05-01), None
patent: 2006-24844 (2006-01-01), None
U.S. Appl. No. 12/092,973, filed May 8, 2008, Nishiura et al.

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