发明名称 |
Current sensor |
摘要 |
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.
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申请公布号 |
US7633287(B2) |
申请公布日期 |
2009.12.15 |
申请号 |
US20080255783 |
申请日期 |
2008.10.22 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION |
发明人 |
NISHIURA RYUICHI;MAKITA YO;NISHIZAWA HIROSHI;YOSHIDA TADAHIRO;KIM TAE HYUN |
分类号 |
G01R15/18;G01R1/20;G01R15/20;G01R19/20 |
主分类号 |
G01R15/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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