JP2012008009A - 電流センサ - Google Patents
電流センサ Download PDFInfo
- Publication number
- JP2012008009A JP2012008009A JP2010144316A JP2010144316A JP2012008009A JP 2012008009 A JP2012008009 A JP 2012008009A JP 2010144316 A JP2010144316 A JP 2010144316A JP 2010144316 A JP2010144316 A JP 2010144316A JP 2012008009 A JP2012008009 A JP 2012008009A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- frequency
- signal
- filter
- magnetic flux
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
- G01R15/202—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices using Hall-effect devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/07—Hall effect devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/07—Hall effect devices
- G01R33/072—Constructional adaptation of the sensor to specific applications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
- G01R15/183—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core
- G01R15/185—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core with compensation or feedback windings or interacting coils, e.g. 0-flux sensors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
【解決手段】この電流センサは、被検出電流による磁束を通すための磁性体コア1と、磁性体コア1に導通する磁束を検出し、検出した磁束に応じた電気信号を出力するホール素子2と、ホール素子2により出力された電気信号を増幅する増幅回路5と、磁性体コア1に巻回された巻線3と、巻線3に高周波信号を印加する高周波発振器4と、増幅回路5の出力信号から高周波信号の周波数と同一の周波数成分を抽出するフィルタ7と、フィルタ7により抽出された電気信号に基づいて、その周波数成分の振幅が所定の一定値になるように、増幅回路5の増幅度を制御する制御回路8とを備える。
【選択図】 図1
Description
2 ホール素子(磁束検出部の一例)
3 巻線
4 高周波発振器
5 増幅回路
6 フィルタ(第2フィルタの一例)
7 フィルタ(第1フィルタの一例)
8 制御回路
22 整流回路
23 比較回路
Claims (3)
- 被検出電流による磁束を通すための磁性体コアと、
前記磁性体コアに導通する磁束を検出し、検出した磁束に応じた電気信号を出力する磁束検出部と、
前記磁束検出部により出力された電気信号を増幅する増幅回路と、
前記磁性体コアに巻回された巻線と、
前記巻線に高周波信号を印加する高周波発振器と、
前記増幅回路の出力信号から前記高周波信号の周波数と同一の周波数成分を抽出する第1フィルタと、
前記第1フィルタにより抽出された電気信号に基づいて、前記周波数成分の振幅が所定の一定値になるように、前記増幅回路の増幅度を制御する制御回路と、
を備えることを特徴とする電流センサ。 - 前記増幅回路の出力信号から前記高周波信号の周波数と同一の周波数成分を遮断する第2フィルタを備えることを特徴とする請求項1記載の電流センサ。
- 前記制御回路は、前記第1フィルタにより抽出された周波数成分の電気信号を整流する整流回路と、前記整流回路の出力電圧と所定の基準電圧との差に応じた制御信号を出力する比較回路と、前記制御信号に従って前記増幅回路の増幅度を変化させる電子素子とを有することを特徴とする請求項1または請求項2記載の電流センサ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010144316A JP5004368B2 (ja) | 2010-06-24 | 2010-06-24 | 電流センサ |
EP11005074.7A EP2400309B1 (en) | 2010-06-24 | 2011-06-21 | Current sensor |
CN201110172040.0A CN102298084B (zh) | 2010-06-24 | 2011-06-23 | 电流传感器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010144316A JP5004368B2 (ja) | 2010-06-24 | 2010-06-24 | 電流センサ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012008009A true JP2012008009A (ja) | 2012-01-12 |
JP5004368B2 JP5004368B2 (ja) | 2012-08-22 |
Family
ID=44503469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010144316A Expired - Fee Related JP5004368B2 (ja) | 2010-06-24 | 2010-06-24 | 電流センサ |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2400309B1 (ja) |
JP (1) | JP5004368B2 (ja) |
CN (1) | CN102298084B (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014199654A1 (ja) * | 2013-06-13 | 2014-12-18 | 日本航空電子工業株式会社 | 電流センサ |
JP2015230249A (ja) * | 2014-06-05 | 2015-12-21 | 日本航空電子工業株式会社 | 電流センサ検査システム、電流センサ検査方法 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5891516B2 (ja) * | 2012-01-12 | 2016-03-23 | アルプス・グリーンデバイス株式会社 | 電流センサ |
CN202583289U (zh) * | 2012-01-19 | 2012-12-05 | 邹高芝 | 穿芯式高精度闭环型霍尔电流传感器用单电源电子线路 |
CN102608393A (zh) * | 2012-03-31 | 2012-07-25 | 江苏安科瑞电器制造有限公司 | 一种用于光伏汇流上的电流采集装置 |
CN102798752A (zh) * | 2012-09-06 | 2012-11-28 | 天津市松正电动汽车技术股份有限公司 | 一种霍尔电流传感器电子电路 |
US9529049B2 (en) * | 2013-12-09 | 2016-12-27 | Ford Global Technologies, Llc | Method and system for calibrating current sensor of electric vehicle battery electronics |
DE102013225645A1 (de) * | 2013-12-11 | 2015-06-11 | Deere & Company | Stromsensor und Regelschaltung |
JP6625395B2 (ja) * | 2015-10-26 | 2019-12-25 | 日置電機株式会社 | 電流センサおよび測定装置 |
US11002804B1 (en) * | 2020-01-14 | 2021-05-11 | Honeywell International Inc. | Magnetic field sensor compensation methods and systems |
CN114296019A (zh) * | 2021-12-19 | 2022-04-08 | 宁波泰丰源电气有限公司 | 一种直流电流传感器温度补偿结构 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3219909A (en) * | 1963-04-01 | 1965-11-23 | Reliance Electric & Eng Co | Transducer |
JPH05312839A (ja) * | 1992-05-12 | 1993-11-26 | Komatsu Ltd | 電流センサ |
JPH06130098A (ja) * | 1992-09-07 | 1994-05-13 | Mitsubishi Electric Corp | 電子式電力量計等の信号入力制御方法および装置 |
JP2008513762A (ja) * | 2004-09-16 | 2008-05-01 | リエゾン、エレクトロニク−メカニク、エルウエム、ソシエテ、アノニム | 連続校正式磁界センサー |
JP2008128711A (ja) * | 2006-11-17 | 2008-06-05 | Tdk Corp | 電流センサ |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2594806B2 (ja) * | 1988-01-23 | 1997-03-26 | 株式会社トーキン | 直流電流検出器 |
JP2000055999A (ja) * | 1998-08-11 | 2000-02-25 | Tdk Corp | 磁気センサ装置および電流センサ装置 |
JP2001141757A (ja) | 1999-11-09 | 2001-05-25 | Yazaki Corp | ホール素子を用いたセンサ装置 |
-
2010
- 2010-06-24 JP JP2010144316A patent/JP5004368B2/ja not_active Expired - Fee Related
-
2011
- 2011-06-21 EP EP11005074.7A patent/EP2400309B1/en not_active Not-in-force
- 2011-06-23 CN CN201110172040.0A patent/CN102298084B/zh not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3219909A (en) * | 1963-04-01 | 1965-11-23 | Reliance Electric & Eng Co | Transducer |
JPH05312839A (ja) * | 1992-05-12 | 1993-11-26 | Komatsu Ltd | 電流センサ |
JPH06130098A (ja) * | 1992-09-07 | 1994-05-13 | Mitsubishi Electric Corp | 電子式電力量計等の信号入力制御方法および装置 |
JP2008513762A (ja) * | 2004-09-16 | 2008-05-01 | リエゾン、エレクトロニク−メカニク、エルウエム、ソシエテ、アノニム | 連続校正式磁界センサー |
JP2008128711A (ja) * | 2006-11-17 | 2008-06-05 | Tdk Corp | 電流センサ |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014199654A1 (ja) * | 2013-06-13 | 2014-12-18 | 日本航空電子工業株式会社 | 電流センサ |
JP2015230249A (ja) * | 2014-06-05 | 2015-12-21 | 日本航空電子工業株式会社 | 電流センサ検査システム、電流センサ検査方法 |
Also Published As
Publication number | Publication date |
---|---|
CN102298084A (zh) | 2011-12-28 |
JP5004368B2 (ja) | 2012-08-22 |
CN102298084B (zh) | 2014-10-15 |
EP2400309A1 (en) | 2011-12-28 |
EP2400309B1 (en) | 2017-03-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5004368B2 (ja) | 電流センサ | |
US10126332B2 (en) | Current transducer with fluxgate detector | |
EP3121921B1 (en) | Residual current protection device | |
US9983240B2 (en) | Sensing motor current | |
JP2017521675A5 (ja) | ||
US9923455B2 (en) | Current-sensing and gain-switching circuit and method for using wide range of current | |
JP6452623B2 (ja) | 包絡線追跡変調器の線形増幅器の改善された効率 | |
TW201541840A (zh) | 返馳式電源供應器及其控制電路與控制方法 | |
US10884028B2 (en) | Current sensor with fluxgate | |
JP5804318B2 (ja) | 電流センサ | |
WO2015008835A1 (ja) | 磁気センサの駆動回路、磁気センサ、電流センサ及び磁気センサの駆動方法 | |
JP6728777B2 (ja) | 電流検知装置 | |
US8670248B2 (en) | Primary-side controlled power converter with an RC network and method thereof | |
US9424741B2 (en) | Combined sense signal generation and detection | |
JP2016050921A (ja) | 電流検知装置 | |
WO2014199654A1 (ja) | 電流センサ | |
JP2016194483A (ja) | 電流検知装置 | |
JP2008014921A (ja) | 直流電流検出方法及び直流電流検出器 | |
JP2019002768A (ja) | 電流センサ | |
US9130471B2 (en) | Converter with transformer flux walk protection controller | |
US10288648B2 (en) | Remote sensing system | |
JP2014119653A (ja) | 誘導加熱定着装置及び画像形成装置 | |
JP5758229B2 (ja) | 磁界検出装置 | |
TWI452807B (zh) | 具有rc網路的一次側控制功率轉換器及其反射電壓偵測方法 | |
JP2006136037A (ja) | インバータ出力電圧の直流成分検出回路 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20120210 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20120427 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20120516 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20120521 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20150601 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5004368 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |