发明名称 |
ELECTRICAL CURRENT SENSOR |
摘要 |
An electrical current sensor includes a magnetic detection element whose characteristics are changed by an inductive magnetic field from a current to be measured, a plurality of coils that are connected in series with each other and which are arranged in the vicinity of the magnetic detection element, and generates a canceling magnetic field for canceling the inductive magnetic field by a feedback current flowing in the coils, and a switch circuit that selects a coil electrically connected with an input terminal and/or an output terminal of the feedback current from the plurality of coils, and controls a coil for allowing the feedback current to flow.
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申请公布号 |
US2013106412(A1) |
申请公布日期 |
2013.05.02 |
申请号 |
US201213719067 |
申请日期 |
2012.12.18 |
申请人 |
ALPS GREEN DEVICES CO., LTD.;ALPS GREEN DEVICES CO., LTD. |
发明人 |
NOMURA MASATOSHI;TAMURA MANABU |
分类号 |
G01R33/00 |
主分类号 |
G01R33/00 |
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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