WO2001023899A1 - Device for measuring current comprising differential sensors which are sensitive to magnetic fields and which are comprised of at least two hall sensors - Google Patents
Device for measuring current comprising differential sensors which are sensitive to magnetic fields and which are comprised of at least two hall sensors Download PDFInfo
- Publication number
- WO2001023899A1 WO2001023899A1 PCT/EP2000/007607 EP0007607W WO0123899A1 WO 2001023899 A1 WO2001023899 A1 WO 2001023899A1 EP 0007607 W EP0007607 W EP 0007607W WO 0123899 A1 WO0123899 A1 WO 0123899A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hall sensors
- current
- hall
- conductor
- sensors
- Prior art date
Links
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
- G01R15/207—Constructional details independent of the type of device used
-
- 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
Definitions
- the invention relates to a device for current measurement according to the features of the independent claim.
- a device for measuring current using Hall sensors is described in the subsequently published DE 198 21 492 AI.
- This applicant's patent application describes a Hall sensor arrangement for the contactless measurement of a current flowing in a conductor which is punched out of a printed circuit board with at least one Hall sensor and with a conductor which has a plurality of conductor sections with partially different orientations, the conductor sections of the Hall sensor at least Surround 3 sides in a U-shape so that the magnetic fields of the individual conductor sections overlap at the location of the Hall sensor.
- a difference sensor is already known from the generic script, which is used together with a specially designed stamping plate.
- the printed circuit board used in the generic script for the differential sensor has the disadvantage that not all conductor sections are traversed by the same current.
- the arrangement of the differential sensor transversely to the main current direction has the disadvantage that the two Hall sensors, which form the differential sensor, measure different magnetic fields if further current-carrying conductors are arranged parallel to the printed circuit board.
- the arrangement described above with a differential sensor is therefore unsuitable for use in lead frames with several parallel current-carrying branches.
- a generic device for inductive current measurement with at least one differential sensor (1) each of which consists of at least two Hall sensors (3) integrated on a substrate (4) and at least one specially shaped printed circuit board (2), in each of the recesses (6) of which the two Hall sensors (3) on both sides of a conductor bridge (5) are known from US 5,041,780.
- the device according to the invention differs from the generic device by the combination of a differential sensor and printed circuit boards specially designed for the differential sensor, which are provided with additional current-carrying slots, and by the arrangement of the differential sensor in the main current direction.
- the differential sensor in the main current direction, preferably by aligning the two Hall sensors on the imaginary center line of the conductor plate, it is achieved that the magnetic field of a parallel neighboring conductor has no difference at the location of the two Hall sensors, and consequently because the Hall sensors are connected as differential sensors, is not measured.
- a device for inductive current measurement is known from US Pat. No. 4,894,610, in which, in one exemplary embodiment, an S-shaped current path is formed which flows around the current sensors, the current sensors being located on an imaginary line in the longitudinal direction parallel to the main current direction. Induction coils are used as current sensors.
- the conductor track is folded onto each other in two layers.
- the invention differs from US Pat. No. 4,894,610 by the use of Hall sensors, by the arrangement of the Hall sensors on a single-layer, specially shaped conductor and by the additional current guiding slots which support the formation of an S-shaped current path.
- the object of the invention is therefore to improve a device for inductive current measurement by means of Hall sensors.
- a device for current measurement consists of a differential sensor and a specially shaped printed circuit board.
- the difference sensor consists of at least two Hall sensors integrated on a substrate, preferably on a chip, which are arranged at a distance of, for example, 1 to 3 mm from one another.
- the Hall sensors are switched such that the difference between the two individual Hall voltages is formed and measured.
- the special arrangement of the Hall sensors on the conductor plates is selected such that the Hall sensors are penetrated by magnetic fields oriented in opposite directions.
- the difference sensor is arranged on the conductor plate in the longitudinal direction parallel to the main current direction, ie the two Hall sensors are preferably arranged on an imaginary line, preferably the center line, in the longitudinal direction of the conductor plate.
- the inventive combination of a differential sensor with a specially designed printed circuit board creates a device that measures the difference between two approximately equal Hall voltages with opposite signs.
- voltage components that have no difference at the location of the difference sensor such as the earth's magnetic field or offset components of the Hall sensors, not measured.
- the usable measurement signal is amplified by a factor of 2.
- a particularly advantageous embodiment of the invention is the formation of lead frames with a plurality of parallel current-carrying branches.
- a differential sensor in the orientation according to the invention is attached to each branch of the lead frame.
- Such lead frames are particularly suitable as battery leads or current distributors in motor vehicles.
- the differential sensors enable the potential-free measurement of the current strength and can thus be used for current monitoring in the individual lines leading away from the motor vehicle battery.
- the conductor plates are designed with current-carrying slots. The current-carrying slots cause a targeted current flow in the printed circuit board, which ensures that a large part of the current flowing through the conductor flows closer to the sensor and contributes to increasing the measurement signal.
- FIG. 1 shows a printed circuit board with recesses in which Hall sensors are arranged.
- Fig. 2 is a plan view of the conductor plate shown in Fig. 1
- Fig. 3 shows an embodiment of the invention with current guiding slots in the printed circuit board
- FIG. 4 shows an advantageous embodiment of the invention as a lead frame with a plurality of parallel branches, particularly suitable for battery discharge
- Fig.l shows sections of a schematic three-dimensional exploded view to explain the invention.
- a difference sensor 1 is joined with an electrical conductor 2, which is preferably punched out of a stamped sheet.
- the difference sensor is formed in a manner known per se from two Hall plates 3, which are arranged and connected on a substrate 4 or a chip 4.
- the differential sensor is preferably manufactured monolithically and is commercially available in various configurations.
- An evaluation unit is usually also integrated on the substrate, so that the measurement signal ⁇ UH can be read out directly by the sensor, for example in digital form.
- the two Hall plates are attached, for example, at a distance of 1-10 mm from one another. The distance between the Hall plates depends on the dimensioning of the current bridge 5, the dimensioning of which in turn is based on the intended current that the conductor 2 is to carry.
- the conductor has slot-shaped, elongated, rectangular-shaped recesses 01/23899
- the dimensions of the recesses are, for example, in the same order of magnitude as the dimensions of the current bridge 5.
- the recesses 6 conduct the total current I in the conductor 2 on an S-shaped current path around the two Hall elements 3 of the differential sensor 1. This means that each of the Hall elements 3 becomes three Sides of the total current I, which is conducted in the conductor 2, so that the magnetic field portions of the individual conductor sections of the S-shaped current path overlap the Hall plates 3 at the location of the Hall plates.
- the differential sensor 1 is arranged on the conductor 2 in the main current direction, symbolized by the current arrows 7.
- the differential sensor 1 is arranged on the conductor 2 in such a way that the two Hall plates 3 are located on an imaginary common line, preferably the center line, in the longitudinal direction parallel to the main current direction 7. Furthermore, for the sake of completeness, a power supply of the two Hall plates with a current I const is shown schematically for the sake of completeness.
- FIG. 2 shows a top view of the device shown in FIG. 1.
- the conductor 2 is shown in supervision with the differential sensor attached from below.
- the Hall plates 3 are arranged in the recesses 6 provided for this purpose and fastened to the conductor 2 with the aid of the substrate 4, so that the device according to the invention results.
- Fig. 3 shows an embodiment of the invention with current guiding slots in the printed circuit board.
- the embodiment shown in FIG. 3 differs from the section shown in FIG. 2 or FIG. 1 in that it has additional current-carrying slots 8, which, in a particularly advantageous manner, cause the formation of an S-shaped current path around the Hall plates 3.
- the current guide slots are advantageously of a similar design and dimensioning to the recesses 6 and also protrude into the conductor 2 from one longitudinal side in an elongated and rectangular manner.
- the current-carrying slots 8 are placed in such a way that, in cooperation with the recesses 6, a total of three current bridges 5 of the same strength and thickness are created.
- the Lead frame 9 shows an advantageous embodiment of the invention as a lead frame with a plurality of parallel branches, particularly suitable as a battery drain in motor vehicles.
- the Lead frame 9 is punched out of a printed circuit board and has a plurality of parallel current-carrying branches 10.1, 10.2, 10.3, 10.4, .., 10.n.
- the number of branches depends on the number of consumer connections required.
- the consumers and the main power connection can be connected via the connection lugs 11.
- the individual branches 10.1,10.2,10.3, 10.4, .., 10.n each consist of one of the devices shown in FIG. 1, FIG. 2 or FIG. 3.
- the individual branches can be designed for different consumers with different power requirements.
- branch 10.1 is dimensioned larger than branch l.o.n, which in turn is larger than branches 10.2, 10.3 and 10.4.
- Each individual branch contains a differential sensor with two Hall plates 3 each.
- the lead frame is particularly suitable as a fuse element for supplementing or as a complete replacement of the known fuse arrangements in the main fuse box.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001527232A JP2003510612A (en) | 1999-09-30 | 2000-08-05 | Apparatus for measuring current with a magnetic field sensitive difference sensor consisting of at least two Hall sensors |
EP00951479A EP1218759A1 (en) | 1999-09-30 | 2000-08-05 | Device for measuring current comprising differential sensors which are sensitive to magnetic fields and which are comprised of at least two hall sensors |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19946935.0 | 1999-09-30 | ||
DE1999146935 DE19946935B4 (en) | 1999-09-30 | 1999-09-30 | Device for inductive current measurement with at least one differential sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001023899A1 true WO2001023899A1 (en) | 2001-04-05 |
Family
ID=7923891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/007607 WO2001023899A1 (en) | 1999-09-30 | 2000-08-05 | Device for measuring current comprising differential sensors which are sensitive to magnetic fields and which are comprised of at least two hall sensors |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1218759A1 (en) |
JP (1) | JP2003510612A (en) |
DE (1) | DE19946935B4 (en) |
WO (1) | WO2001023899A1 (en) |
Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1267173A2 (en) * | 2001-06-15 | 2002-12-18 | Sanken Electric Co., Ltd. | Hall-effect current detector |
EP1271159A2 (en) * | 2001-06-15 | 2003-01-02 | Sanken Electric Co., Ltd. | Hall-effect current detector |
EP1772737A2 (en) * | 2005-10-08 | 2007-04-11 | Sentron Ag | Assembly group for the current measurement |
EP2116855A2 (en) | 2008-04-17 | 2009-11-11 | Adaptive Regelsysteme Gesellschaft mbH | Flow measuring device and method for galvanically separate measurement of flows |
WO2011068653A1 (en) * | 2009-12-03 | 2011-06-09 | Allegro Microsystems, Inc. | Methods and apparatus for enhanced frequency response of magnetic sensors |
WO2011067016A1 (en) * | 2009-12-04 | 2011-06-09 | Robert Bosch Gmbh | Component for limiting currents in electric circuits |
US8093670B2 (en) | 2008-07-24 | 2012-01-10 | Allegro Microsystems, Inc. | Methods and apparatus for integrated circuit having on chip capacitor with eddy current reductions |
US8283742B2 (en) | 2010-08-31 | 2012-10-09 | Infineon Technologies, A.G. | Thin-wafer current sensors |
US8442787B2 (en) | 2010-04-30 | 2013-05-14 | Infineon Technologies Ag | Apparatus, sensor circuit, and method for operating an apparatus or a sensor circuit |
FR2984513A1 (en) * | 2011-12-20 | 2013-06-21 | Neelogy | CURRENT SENSOR BY MEASUREMENT OF INTERNAL MAGNETIC FIELD TO DRIVER. |
US8680843B2 (en) | 2010-06-10 | 2014-03-25 | Infineon Technologies Ag | Magnetic field current sensors |
US8717016B2 (en) | 2010-02-24 | 2014-05-06 | Infineon Technologies Ag | Current sensors and methods |
US8760149B2 (en) | 2010-04-08 | 2014-06-24 | Infineon Technologies Ag | Magnetic field current sensors |
CN104134747A (en) * | 2013-05-03 | 2014-11-05 | 远翔科技股份有限公司 | Semiconductor structure for sensing electromagnetic induction and manufacturing method thereof |
DE202013010178U1 (en) * | 2013-11-11 | 2015-02-13 | Seuffer gmbH & Co. KG | Current detection device |
US8963536B2 (en) | 2011-04-14 | 2015-02-24 | Infineon Technologies Ag | Current sensors, systems and methods for sensing current in a conductor |
US8975889B2 (en) | 2011-01-24 | 2015-03-10 | Infineon Technologies Ag | Current difference sensors, systems and methods |
US9103853B2 (en) | 2010-11-18 | 2015-08-11 | Infineon Technologies Ag | Current sensor |
US9222992B2 (en) | 2008-12-18 | 2015-12-29 | Infineon Technologies Ag | Magnetic field current sensors |
US9228860B2 (en) | 2006-07-14 | 2016-01-05 | Allegro Microsystems, Llc | Sensor and method of providing a sensor |
US9299915B2 (en) | 2012-01-16 | 2016-03-29 | Allegro Microsystems, Llc | Methods and apparatus for magnetic sensor having non-conductive die paddle |
US9411025B2 (en) | 2013-04-26 | 2016-08-09 | Allegro Microsystems, Llc | Integrated circuit package having a split lead frame and a magnet |
US9476915B2 (en) | 2010-12-09 | 2016-10-25 | Infineon Technologies Ag | Magnetic field current sensors |
US9494660B2 (en) | 2012-03-20 | 2016-11-15 | Allegro Microsystems, Llc | Integrated circuit package having a split lead frame |
US9523720B2 (en) | 2013-03-15 | 2016-12-20 | Infineon Technologies Ag | Multiple current sensor device, a multiple current shunt device and a method for providing a sensor signal |
US9666788B2 (en) | 2012-03-20 | 2017-05-30 | Allegro Microsystems, Llc | Integrated circuit package having a split lead frame |
US9812588B2 (en) | 2012-03-20 | 2017-11-07 | Allegro Microsystems, Llc | Magnetic field sensor integrated circuit with integral ferromagnetic material |
DE102011086270B4 (en) | 2010-11-18 | 2018-12-27 | Infineon Technologies Ag | CURRENT SENSOR |
CN109387681A (en) * | 2018-12-28 | 2019-02-26 | 无锡思泰迪半导体有限公司 | Binary channels current sensor structure based on magnetic field detection |
US10234513B2 (en) | 2012-03-20 | 2019-03-19 | Allegro Microsystems, Llc | Magnetic field sensor integrated circuit with integral ferromagnetic material |
US10247759B2 (en) | 2013-09-05 | 2019-04-02 | Asahi Kasei Microdevices Corporation | Current sensor |
US20200381881A1 (en) * | 2019-05-29 | 2020-12-03 | Infineon Technologies Ag | Busbar and power module with busbar |
US10991644B2 (en) | 2019-08-22 | 2021-04-27 | Allegro Microsystems, Llc | Integrated circuit package having a low profile |
CN117227682A (en) * | 2023-11-15 | 2023-12-15 | 北京全路通信信号研究设计院集团有限公司 | Magnetic field safety detection method, system, equipment and storage medium |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10107812B4 (en) * | 2001-02-20 | 2014-10-16 | Robert Bosch Gmbh | Device for measuring the electric current |
DE10107811A1 (en) * | 2001-02-20 | 2002-09-19 | Bosch Gmbh Robert | Device, ammeter and motor vehicle |
DE10158836B4 (en) * | 2001-11-30 | 2007-06-06 | Infineon Technologies Ag | Method and device for calibrating a sensor system |
JP2006038518A (en) | 2004-07-23 | 2006-02-09 | Denso Corp | Current measuring instrument |
JP2007183221A (en) * | 2006-01-10 | 2007-07-19 | Denso Corp | Electric current sensor |
DE202006013311U1 (en) * | 2006-08-30 | 2008-01-03 | Merten Gmbh & Co. Kg | Connection unit of a bus system |
JP5193622B2 (en) * | 2008-02-12 | 2013-05-08 | 株式会社東海理化電機製作所 | Battery terminal with integrated current sensor |
DE102009047235A1 (en) * | 2009-11-27 | 2011-06-01 | Robert Bosch Gmbh | Circuit device and power circuit with the circuit device |
WO2012050048A1 (en) * | 2010-10-15 | 2012-04-19 | アルプス・グリーンデバイス株式会社 | Current sensor |
JP2013044705A (en) * | 2011-08-26 | 2013-03-04 | Asahi Kasei Electronics Co Ltd | Current detection device |
DE102011116545A1 (en) | 2011-10-21 | 2013-04-25 | Micronas Gmbh | Integrated magnetic field measuring device |
JP2013148512A (en) * | 2012-01-20 | 2013-08-01 | Aisin Seiki Co Ltd | Current sensor |
JP5814976B2 (en) * | 2013-05-15 | 2015-11-17 | 三菱電機株式会社 | Current measuring device |
JPWO2014192625A1 (en) * | 2013-05-30 | 2017-02-23 | 株式会社村田製作所 | Current sensor |
TWI504904B (en) * | 2013-07-30 | 2015-10-21 | Asahi Kasei Microdevices Corp | Current sensor |
US9746500B2 (en) | 2013-12-11 | 2017-08-29 | Eaton Corporation | Electrical current sensing apparatus |
DE102014008173B4 (en) | 2014-06-10 | 2022-08-11 | Tdk-Micronas Gmbh | magnetic field measuring device |
DE102014011245B3 (en) * | 2014-08-01 | 2015-06-11 | Micronas Gmbh | Magnetic field measuring device |
DE102015007190B4 (en) | 2015-06-09 | 2017-03-02 | Micronas Gmbh | Magnetic field measuring device |
DE102015013022A1 (en) | 2015-10-09 | 2017-04-13 | Micronas Gmbh | Magnetic field measuring device |
CN108713148B (en) | 2016-06-09 | 2020-08-28 | 株式会社村田制作所 | Current sensor and current sensor module |
JP6914671B2 (en) * | 2017-02-24 | 2021-08-04 | 旭化成エレクトロニクス株式会社 | Current sensor |
JP2020148752A (en) * | 2019-03-13 | 2020-09-17 | 甲神電機株式会社 | Current detection device |
JP2022548498A (en) * | 2019-09-20 | 2022-11-21 | スージョウ リテルヒューズ オーブイエス カンパニー リミテッド | Differential signal current sensor |
DE102021208725A1 (en) | 2021-08-10 | 2023-02-16 | Robert Bosch Gesellschaft mit beschränkter Haftung | Current detection arrangement and electrical machine |
DE102021208720A1 (en) | 2021-08-10 | 2023-02-16 | Robert Bosch Gesellschaft mit beschränkter Haftung | current sensing arrangement |
WO2023136125A1 (en) | 2022-01-14 | 2023-07-20 | 株式会社アイシン | Electric current sensor device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4492919A (en) * | 1982-04-12 | 1985-01-08 | General Electric Company | Current sensors |
US4894610A (en) * | 1985-09-14 | 1990-01-16 | LOZ Landis & Gyr Zug AG | Current-transformer arrangement for an electrostatic meter |
US5027059A (en) * | 1989-08-24 | 1991-06-25 | Schlumberger Industries, Inc. | Differential current shunt |
DE29610403U1 (en) * | 1995-06-16 | 1996-08-01 | Ceag Sicherheitstechnik Gmbh | Shunt resistance |
DE19821492A1 (en) * | 1998-05-14 | 1999-11-25 | Daimler Chrysler Ag | Contactless measuring of current in conductor track of e.g. battery short-circuit safety system in motor vehicle |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0292636A1 (en) * | 1987-05-26 | 1988-11-30 | Landis & Gyr Betriebs AG | Current converter for measuring the current flowing in an electric conductor |
US5041780A (en) * | 1988-09-13 | 1991-08-20 | California Institute Of Technology | Integrable current sensors |
JPH02167478A (en) * | 1988-09-22 | 1990-06-27 | Toshiba Corp | Current sensor |
GB9500974D0 (en) * | 1995-01-18 | 1995-03-08 | Horstmann Timers & Controls | Electricity measurement apparatus |
DE29812531U1 (en) * | 1998-03-17 | 1998-09-03 | Ssg Halbleiter Vertriebs Gmbh | Measuring device for determining a current flowing through an electrical conductor |
-
1999
- 1999-09-30 DE DE1999146935 patent/DE19946935B4/en not_active Expired - Fee Related
-
2000
- 2000-08-05 EP EP00951479A patent/EP1218759A1/en not_active Withdrawn
- 2000-08-05 WO PCT/EP2000/007607 patent/WO2001023899A1/en not_active Application Discontinuation
- 2000-08-05 JP JP2001527232A patent/JP2003510612A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4492919A (en) * | 1982-04-12 | 1985-01-08 | General Electric Company | Current sensors |
US4894610A (en) * | 1985-09-14 | 1990-01-16 | LOZ Landis & Gyr Zug AG | Current-transformer arrangement for an electrostatic meter |
US5027059A (en) * | 1989-08-24 | 1991-06-25 | Schlumberger Industries, Inc. | Differential current shunt |
DE29610403U1 (en) * | 1995-06-16 | 1996-08-01 | Ceag Sicherheitstechnik Gmbh | Shunt resistance |
DE19821492A1 (en) * | 1998-05-14 | 1999-11-25 | Daimler Chrysler Ag | Contactless measuring of current in conductor track of e.g. battery short-circuit safety system in motor vehicle |
Cited By (58)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1267173A2 (en) * | 2001-06-15 | 2002-12-18 | Sanken Electric Co., Ltd. | Hall-effect current detector |
EP1271159A2 (en) * | 2001-06-15 | 2003-01-02 | Sanken Electric Co., Ltd. | Hall-effect current detector |
EP1267173A3 (en) * | 2001-06-15 | 2005-03-23 | Sanken Electric Co., Ltd. | Hall-effect current detector |
EP1271159A3 (en) * | 2001-06-15 | 2005-04-20 | Sanken Electric Co., Ltd. | Hall-effect current detector |
EP1772737A2 (en) * | 2005-10-08 | 2007-04-11 | Sentron Ag | Assembly group for the current measurement |
EP1772737A3 (en) * | 2005-10-08 | 2008-02-20 | Melexis Technologies SA | Assembly group for the current measurement |
US7375507B2 (en) | 2005-10-08 | 2008-05-20 | Melexis Technologies Sa | Assembly group for current measurement |
US9228860B2 (en) | 2006-07-14 | 2016-01-05 | Allegro Microsystems, Llc | Sensor and method of providing a sensor |
EP2116855A2 (en) | 2008-04-17 | 2009-11-11 | Adaptive Regelsysteme Gesellschaft mbH | Flow measuring device and method for galvanically separate measurement of flows |
US8093670B2 (en) | 2008-07-24 | 2012-01-10 | Allegro Microsystems, Inc. | Methods and apparatus for integrated circuit having on chip capacitor with eddy current reductions |
US9733279B2 (en) | 2008-12-18 | 2017-08-15 | Infineon Technologies Ag | Magnetic field current sensors |
US9222992B2 (en) | 2008-12-18 | 2015-12-29 | Infineon Technologies Ag | Magnetic field current sensors |
WO2011068653A1 (en) * | 2009-12-03 | 2011-06-09 | Allegro Microsystems, Inc. | Methods and apparatus for enhanced frequency response of magnetic sensors |
CN102648558A (en) * | 2009-12-04 | 2012-08-22 | 罗伯特·博世有限公司 | Component for limiting currents in electric circuits |
WO2011067016A1 (en) * | 2009-12-04 | 2011-06-09 | Robert Bosch Gmbh | Component for limiting currents in electric circuits |
US9865802B2 (en) | 2010-02-24 | 2018-01-09 | Infineon Technologies Ag | Current sensors and methods |
US8717016B2 (en) | 2010-02-24 | 2014-05-06 | Infineon Technologies Ag | Current sensors and methods |
US9983238B2 (en) | 2010-04-08 | 2018-05-29 | Infineon Technologies Ag | Magnetic field current sensors having enhanced current density regions |
US8760149B2 (en) | 2010-04-08 | 2014-06-24 | Infineon Technologies Ag | Magnetic field current sensors |
US8442787B2 (en) | 2010-04-30 | 2013-05-14 | Infineon Technologies Ag | Apparatus, sensor circuit, and method for operating an apparatus or a sensor circuit |
US8680843B2 (en) | 2010-06-10 | 2014-03-25 | Infineon Technologies Ag | Magnetic field current sensors |
US8679895B2 (en) | 2010-08-31 | 2014-03-25 | Infineon Technologies Ag | Method of making thin-wafer current sensors |
US9029966B2 (en) | 2010-08-31 | 2015-05-12 | Infineon Technologies Ag | Thin-wafer current sensors |
US8283742B2 (en) | 2010-08-31 | 2012-10-09 | Infineon Technologies, A.G. | Thin-wafer current sensors |
US9103853B2 (en) | 2010-11-18 | 2015-08-11 | Infineon Technologies Ag | Current sensor |
DE102011086270B4 (en) | 2010-11-18 | 2018-12-27 | Infineon Technologies Ag | CURRENT SENSOR |
US9476915B2 (en) | 2010-12-09 | 2016-10-25 | Infineon Technologies Ag | Magnetic field current sensors |
US8975889B2 (en) | 2011-01-24 | 2015-03-10 | Infineon Technologies Ag | Current difference sensors, systems and methods |
US9678172B2 (en) | 2011-01-24 | 2017-06-13 | Infineon Technologies Ag | Current difference sensors, systems and methods |
US10488445B2 (en) | 2011-01-24 | 2019-11-26 | Infineon Technologies Ag | Current difference sensors, systems and methods |
US8963536B2 (en) | 2011-04-14 | 2015-02-24 | Infineon Technologies Ag | Current sensors, systems and methods for sensing current in a conductor |
US9395423B2 (en) | 2011-04-14 | 2016-07-19 | Infineon Technologies Ag | Current sensors, systems and methods for sensing current in a conductor |
FR2984513A1 (en) * | 2011-12-20 | 2013-06-21 | Neelogy | CURRENT SENSOR BY MEASUREMENT OF INTERNAL MAGNETIC FIELD TO DRIVER. |
WO2013093249A1 (en) * | 2011-12-20 | 2013-06-27 | Neelogy | Current sensor measuring the inner magnetic field of the conductor |
US9299915B2 (en) | 2012-01-16 | 2016-03-29 | Allegro Microsystems, Llc | Methods and apparatus for magnetic sensor having non-conductive die paddle |
US9620705B2 (en) | 2012-01-16 | 2017-04-11 | Allegro Microsystems, Llc | Methods and apparatus for magnetic sensor having non-conductive die paddle |
US10333055B2 (en) | 2012-01-16 | 2019-06-25 | Allegro Microsystems, Llc | Methods for magnetic sensor having non-conductive die paddle |
US11444209B2 (en) | 2012-03-20 | 2022-09-13 | Allegro Microsystems, Llc | Magnetic field sensor integrated circuit with an integrated coil enclosed with a semiconductor die by a mold material |
US9666788B2 (en) | 2012-03-20 | 2017-05-30 | Allegro Microsystems, Llc | Integrated circuit package having a split lead frame |
US11677032B2 (en) | 2012-03-20 | 2023-06-13 | Allegro Microsystems, Llc | Sensor integrated circuit with integrated coil and element in central region of mold material |
US11961920B2 (en) | 2012-03-20 | 2024-04-16 | Allegro Microsystems, Llc | Integrated circuit package with magnet having a channel |
US10916665B2 (en) | 2012-03-20 | 2021-02-09 | Allegro Microsystems, Llc | Magnetic field sensor integrated circuit with an integrated coil |
US9812588B2 (en) | 2012-03-20 | 2017-11-07 | Allegro Microsystems, Llc | Magnetic field sensor integrated circuit with integral ferromagnetic material |
US10230006B2 (en) | 2012-03-20 | 2019-03-12 | Allegro Microsystems, Llc | Magnetic field sensor integrated circuit with an electromagnetic suppressor |
US10234513B2 (en) | 2012-03-20 | 2019-03-19 | Allegro Microsystems, Llc | Magnetic field sensor integrated circuit with integral ferromagnetic material |
US11828819B2 (en) | 2012-03-20 | 2023-11-28 | Allegro Microsystems, Llc | Magnetic field sensor integrated circuit with integral ferromagnetic material |
US9494660B2 (en) | 2012-03-20 | 2016-11-15 | Allegro Microsystems, Llc | Integrated circuit package having a split lead frame |
US9523720B2 (en) | 2013-03-15 | 2016-12-20 | Infineon Technologies Ag | Multiple current sensor device, a multiple current shunt device and a method for providing a sensor signal |
US9411025B2 (en) | 2013-04-26 | 2016-08-09 | Allegro Microsystems, Llc | Integrated circuit package having a split lead frame and a magnet |
CN104134747A (en) * | 2013-05-03 | 2014-11-05 | 远翔科技股份有限公司 | Semiconductor structure for sensing electromagnetic induction and manufacturing method thereof |
US10247759B2 (en) | 2013-09-05 | 2019-04-02 | Asahi Kasei Microdevices Corporation | Current sensor |
DE202013010178U1 (en) * | 2013-11-11 | 2015-02-13 | Seuffer gmbH & Co. KG | Current detection device |
CN109387681A (en) * | 2018-12-28 | 2019-02-26 | 无锡思泰迪半导体有限公司 | Binary channels current sensor structure based on magnetic field detection |
US20200381881A1 (en) * | 2019-05-29 | 2020-12-03 | Infineon Technologies Ag | Busbar and power module with busbar |
US11796571B2 (en) * | 2019-05-29 | 2023-10-24 | Infineon Technologies Ag | Busbar and power module with busbar |
US10991644B2 (en) | 2019-08-22 | 2021-04-27 | Allegro Microsystems, Llc | Integrated circuit package having a low profile |
CN117227682A (en) * | 2023-11-15 | 2023-12-15 | 北京全路通信信号研究设计院集团有限公司 | Magnetic field safety detection method, system, equipment and storage medium |
CN117227682B (en) * | 2023-11-15 | 2024-03-22 | 北京全路通信信号研究设计院集团有限公司 | Magnetic field safety detection method, system, equipment and storage medium |
Also Published As
Publication number | Publication date |
---|---|
DE19946935A1 (en) | 2001-05-03 |
JP2003510612A (en) | 2003-03-18 |
DE19946935B4 (en) | 2004-02-05 |
EP1218759A1 (en) | 2002-07-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE19946935B4 (en) | Device for inductive current measurement with at least one differential sensor | |
DE102008039568B4 (en) | Current detection device | |
DE602005003777T2 (en) | Surface mount integrated current sensor | |
DE69530726T2 (en) | MEASURING DEVICE FOR MAGNETIC FIELDS | |
DE60027257T2 (en) | Current detector with a Hall effect arrangement | |
DE60219561T2 (en) | Hall effect current detector | |
DE102011107703B4 (en) | Integrated current sensor | |
EP1772737A2 (en) | Assembly group for the current measurement | |
DE102005039587A1 (en) | Battery sensor unit | |
DE10045563B4 (en) | The power semiconductor module assembly | |
DE102007001847A1 (en) | Current sensor and method for mounting the same | |
DE10240914B4 (en) | Circuit arrangement with a load transistor and a current measuring arrangement and method for determining the load current of a load transistor and use of a semiconductor device | |
DE102020122262A1 (en) | Current sensor | |
DE2514621A1 (en) | DEVICE FOR MEASURING THE ELECTRICAL CONDUCTIVITY OF A LIQUID | |
DE3008308C2 (en) | Current divider for measuring transducers for potential-free measurement of currents | |
EP3499199A1 (en) | Wim sensor and method for manufacturing the wim sensor | |
DE69912175T2 (en) | Mechanism for detecting the position of a movable member | |
DE102010036040A1 (en) | Device for measuring electric current in current guard of power-electronic arrangement for industrial truck, has current guard, circuit board and magnetic field sensor that are arranged based on surface mount device construction | |
DE3447325A1 (en) | POSITION SENSOR | |
EP2737327B1 (en) | Circuit for conducting an electrical current | |
DE10007967C2 (en) | Multi-layer arrangement of electrical conductors with integrated current detection | |
DE602004005750T2 (en) | Current sensor with reduced sensitivity to magnetic fields | |
DE112021004421T5 (en) | DEVICE FOR DETECTING ELECTRIC CURRENT | |
DE3905799A1 (en) | HIGH VOLTAGE ELECTRODE | |
EP1882953A1 (en) | Current measuring device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): JP US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2000951479 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref country code: JP Ref document number: 2001 527232 Kind code of ref document: A Format of ref document f/p: F |
|
WWP | Wipo information: published in national office |
Ref document number: 2000951479 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10089608 Country of ref document: US |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2000951479 Country of ref document: EP |