JP5804318B2 - 電流センサ - Google Patents
電流センサ Download PDFInfo
- Publication number
- JP5804318B2 JP5804318B2 JP2011149022A JP2011149022A JP5804318B2 JP 5804318 B2 JP5804318 B2 JP 5804318B2 JP 2011149022 A JP2011149022 A JP 2011149022A JP 2011149022 A JP2011149022 A JP 2011149022A JP 5804318 B2 JP5804318 B2 JP 5804318B2
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- Prior art keywords
- circuit
- current
- detected current
- output
- magnetic core
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- 238000004804 winding Methods 0.000 claims description 29
- 230000004907 flux Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 16
- 239000003990 capacitor Substances 0.000 description 9
- 230000007423 decrease Effects 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- Measurement Of Current Or Voltage (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Description
2 巻線(バイアス用巻線の一例,磁界バイアス部の一例の一部)
3 定電流電源(磁界バイアス部の一例の一部)
4 発振器
11,41 出力回路
16 永久磁石(磁界バイアス部の一例)
22 ホール素子
24 極性反転回路
Co コンデンサ(共振回路の一例の一部)
Lo 巻線(共振回路の一例の一部)
Ro 抵抗(共振回路の一例の一部)
Claims (1)
- 被検出電流による磁束を通すための磁性体コアと、
前記磁性体コアに巻回された巻線を含む共振回路と、
前記共振回路に対して所定の周波数の信号を印加する発振器と、
前記共振回路に接続され、前記被検出電流の大きさに応じた前記共振回路の特性変化に対応する大きさの電気信号を出力する出力回路と、
前記磁性体コアのギャップに配置されたホール素子と、
前記ホール素子の出力電圧に基づく前記被検出電流の向きに応じて、前記出力回路の出力極性を反転させる極性反転回路と、
を備えることを特徴とする電流センサ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011149022A JP5804318B2 (ja) | 2010-07-12 | 2011-07-05 | 電流センサ |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010158073 | 2010-07-12 | ||
JP2010158073 | 2010-07-12 | ||
JP2011149022A JP5804318B2 (ja) | 2010-07-12 | 2011-07-05 | 電流センサ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012037508A JP2012037508A (ja) | 2012-02-23 |
JP5804318B2 true JP5804318B2 (ja) | 2015-11-04 |
Family
ID=45849625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2011149022A Active JP5804318B2 (ja) | 2010-07-12 | 2011-07-05 | 電流センサ |
Country Status (1)
Country | Link |
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JP (1) | JP5804318B2 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014136589A1 (ja) * | 2013-03-05 | 2014-09-12 | オムロン株式会社 | 電流センサ、電流測定装置、および漏電検出装置 |
CN106405252A (zh) * | 2016-11-18 | 2017-02-15 | 国网江苏省电力公司宿迁供电公司 | 一种pt柜消谐器数据测量方法及其测量装置 |
CN107656119B (zh) * | 2017-10-23 | 2023-10-03 | 浙江大学 | 一种无源无线的电流传感器装置 |
CN108459193B (zh) * | 2018-04-04 | 2020-09-11 | 北京智芯微电子科技有限公司 | 交变电流测量装置 |
WO2020006952A1 (zh) * | 2018-07-03 | 2020-01-09 | 清华大学 | 基于各向异性磁阻效应的大量程自供能电流传感装置 |
KR102055566B1 (ko) * | 2018-09-13 | 2019-12-13 | (주)토마스 | 비접촉 직류 전류 측정 장치 |
JP7450827B2 (ja) | 2022-03-16 | 2024-03-15 | 三菱電機株式会社 | 電流センサ及び電線診断システム |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3516645B2 (ja) * | 2000-09-06 | 2004-04-05 | Tdk株式会社 | 磁気センサ素子、磁気センサ装置および電流センサ装置 |
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2011
- 2011-07-05 JP JP2011149022A patent/JP5804318B2/ja active Active
Also Published As
Publication number | Publication date |
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JP2012037508A (ja) | 2012-02-23 |
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