WO2001023899A1 - Vorrichtung zur strommessung mit magnetfeldempfindlichen differenzsensoren aus mindestens zwei hallsensoren - Google Patents
Vorrichtung zur strommessung mit magnetfeldempfindlichen differenzsensoren aus mindestens zwei hallsensoren 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
- 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.)
- Ceased
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)
- Hall/Mr Elements (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00951479A EP1218759A1 (de) | 1999-09-30 | 2000-08-05 | Vorrichtung zur strommessung mit magnetfeldempfindlichen differenzsensoren aus mindestens zwei hallsensoren |
| JP2001527232A JP2003510612A (ja) | 1999-09-30 | 2000-08-05 | 少なくとも2つのホールセンサから成る磁界感知可能な差分センサを備えた電流を測定するための装置 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19946935A DE19946935B4 (de) | 1999-09-30 | 1999-09-30 | Vorrichtung zur induktiven Strommessung mit mindestens einem Differenzsensor |
| DE19946935.0 | 1999-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001023899A1 true WO2001023899A1 (de) | 2001-04-05 |
Family
ID=7923891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2000/007607 Ceased WO2001023899A1 (de) | 1999-09-30 | 2000-08-05 | Vorrichtung zur strommessung mit magnetfeldempfindlichen differenzsensoren aus mindestens zwei hallsensoren |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1218759A1 (de) |
| JP (1) | JP2003510612A (de) |
| DE (1) | DE19946935B4 (de) |
| WO (1) | WO2001023899A1 (de) |
Cited By (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1267173A3 (de) * | 2001-06-15 | 2005-03-23 | Sanken Electric Co., Ltd. | Hall-Effektstromdetektor |
| EP1271159A3 (de) * | 2001-06-15 | 2005-04-20 | Sanken Electric Co., Ltd. | Hall-Effekt-Stromdetektor |
| EP1772737A3 (de) * | 2005-10-08 | 2008-02-20 | Melexis Technologies SA | Baugruppe zur Strommessung |
| EP2116855A2 (de) | 2008-04-17 | 2009-11-11 | Adaptive Regelsysteme Gesellschaft mbH | Strommesseinrichtung und Verfahren zur galvanisch getrennten Messung von Strömen |
| WO2011067016A1 (de) * | 2009-12-04 | 2011-06-09 | Robert Bosch Gmbh | Bauelement zur begrenzung von strömen in elektrischen schaltungen |
| WO2011068653A1 (en) * | 2009-12-03 | 2011-06-09 | Allegro Microsystems, Inc. | Methods and apparatus for enhanced frequency response of magnetic sensors |
| 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 (fr) * | 2011-12-20 | 2013-06-21 | Neelogy | Capteur de courant par mesure du champ magnetique interne au conducteur. |
| 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 (zh) * | 2013-05-03 | 2014-11-05 | 远翔科技股份有限公司 | 用于感测电磁感应的半导体结构及其制造方法 |
| DE202013010178U1 (de) * | 2013-11-11 | 2015-02-13 | Seuffer gmbH & Co. KG | Stromerfassungsvorrichtung |
| 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 (de) | 2010-11-18 | 2018-12-27 | Infineon Technologies Ag | Stromsensor |
| CN109387681A (zh) * | 2018-12-28 | 2019-02-26 | 无锡思泰迪半导体有限公司 | 基于磁场检测的双通道电流传感器结构 |
| 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 (zh) * | 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 | 一种磁场安全检测方法、系统、设备及存储介质 |
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| DE10107811A1 (de) * | 2001-02-20 | 2002-09-19 | Bosch Gmbh Robert | Vorrichtung, Strommesser und Kraftfahrzeug |
| DE10107812B4 (de) * | 2001-02-20 | 2014-10-16 | Robert Bosch Gmbh | Vorrichtung zur Messung der elektrischen Stromstärke |
| DE10158836B4 (de) * | 2001-11-30 | 2007-06-06 | Infineon Technologies Ag | Verfahren und Vorrichtung zur Kalibrierung eines Sensorsystems |
| JP2006038518A (ja) | 2004-07-23 | 2006-02-09 | Denso Corp | 電流計測装置 |
| JP2007183221A (ja) * | 2006-01-10 | 2007-07-19 | Denso Corp | 電流センサ |
| DE202006013311U1 (de) * | 2006-08-30 | 2008-01-03 | Merten Gmbh & Co. Kg | Anschlusseinheit eines Bussystems |
| JP5193622B2 (ja) * | 2008-02-12 | 2013-05-08 | 株式会社東海理化電機製作所 | 電流センサ一体型バッテリーターミナル |
| DE102009047235A1 (de) * | 2009-11-27 | 2011-06-01 | Robert Bosch Gmbh | Schaltungseinrichtung und Leistungsschaltkreis mit der Schaltungseinrichtung |
| JP5659389B2 (ja) * | 2010-10-15 | 2015-01-28 | アルプス・グリーンデバイス株式会社 | 電流センサ |
| JP2013044705A (ja) * | 2011-08-26 | 2013-03-04 | Asahi Kasei Electronics Co Ltd | 電流検出装置 |
| DE102011116545A1 (de) | 2011-10-21 | 2013-04-25 | Micronas Gmbh | Integrierte Magnetfeldmessvorrichtung |
| JP2013148512A (ja) * | 2012-01-20 | 2013-08-01 | Aisin Seiki Co Ltd | 電流センサ |
| JP5814976B2 (ja) | 2013-05-15 | 2015-11-17 | 三菱電機株式会社 | 電流計測装置 |
| WO2014192625A1 (ja) * | 2013-05-30 | 2014-12-04 | 株式会社村田製作所 | 電流センサ |
| TWI504904B (zh) * | 2013-07-30 | 2015-10-21 | 旭化成微電子股份有限公司 | Current sensor |
| US9746500B2 (en) | 2013-12-11 | 2017-08-29 | Eaton Corporation | Electrical current sensing apparatus |
| DE102014008173B4 (de) | 2014-06-10 | 2022-08-11 | Tdk-Micronas Gmbh | Magnetfeldmessvorrichtung |
| DE102014011245B3 (de) * | 2014-08-01 | 2015-06-11 | Micronas Gmbh | Magnetfeldmessvorrichtung |
| DE102015007190B4 (de) | 2015-06-09 | 2017-03-02 | Micronas Gmbh | Magnetfeldmessvorrichtung |
| DE102015013022A1 (de) | 2015-10-09 | 2017-04-13 | Micronas Gmbh | Magnetfeldmessvorrichtung |
| JP6696571B2 (ja) | 2016-06-09 | 2020-05-20 | 株式会社村田製作所 | 電流センサおよび電流センサモジュール |
| JP6914671B2 (ja) * | 2017-02-24 | 2021-08-04 | 旭化成エレクトロニクス株式会社 | 電流センサ |
| JP2020148752A (ja) * | 2019-03-13 | 2020-09-17 | 甲神電機株式会社 | 電流検出装置 |
| US12044708B2 (en) | 2019-09-20 | 2024-07-23 | Suzhou Littelfuse Ovs Co., Ltd. | Differential signal current sensor |
| DE102021208720A1 (de) | 2021-08-10 | 2023-02-16 | Robert Bosch Gesellschaft mit beschränkter Haftung | Stromerfassungsanordnung |
| DE102021208725A1 (de) | 2021-08-10 | 2023-02-16 | Robert Bosch Gesellschaft mit beschränkter Haftung | Stromerfassungsanordnung und elektrische Maschine |
| US20250231225A1 (en) * | 2022-01-14 | 2025-07-17 | Aisin Corporation | Electric current sensor device |
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- 1999-09-30 DE DE19946935A patent/DE19946935B4/de not_active Expired - Fee Related
-
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- 2000-08-05 JP JP2001527232A patent/JP2003510612A/ja active Pending
- 2000-08-05 WO PCT/EP2000/007607 patent/WO2001023899A1/de not_active Ceased
- 2000-08-05 EP EP00951479A patent/EP1218759A1/de not_active Withdrawn
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| 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 (de) * | 1995-06-16 | 1996-08-01 | CEAG Sicherheitstechnik GmbH, 59494 Soest | Shunt-Widerstand |
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Cited By (57)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1271159A3 (de) * | 2001-06-15 | 2005-04-20 | Sanken Electric Co., Ltd. | Hall-Effekt-Stromdetektor |
| EP1267173A3 (de) * | 2001-06-15 | 2005-03-23 | Sanken Electric Co., Ltd. | Hall-Effektstromdetektor |
| EP1772737A3 (de) * | 2005-10-08 | 2008-02-20 | Melexis Technologies SA | Baugruppe zur Strommessung |
| 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 (de) | 2008-04-17 | 2009-11-11 | Adaptive Regelsysteme Gesellschaft mbH | Strommesseinrichtung und Verfahren zur galvanisch getrennten Messung von Strömen |
| 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 |
| US9222992B2 (en) | 2008-12-18 | 2015-12-29 | Infineon Technologies Ag | Magnetic field current sensors |
| US9733279B2 (en) | 2008-12-18 | 2017-08-15 | 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 (zh) * | 2009-12-04 | 2012-08-22 | 罗伯特·博世有限公司 | 用于限制电路中的电流的部件 |
| WO2011067016A1 (de) * | 2009-12-04 | 2011-06-09 | Robert Bosch Gmbh | Bauelement zur begrenzung von strömen in elektrischen schaltungen |
| CN102648558B (zh) * | 2009-12-04 | 2015-06-24 | 罗伯特·博世有限公司 | 用于限制电路中的电流的部件 |
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| US9865802B2 (en) | 2010-02-24 | 2018-01-09 | Infineon Technologies Ag | Current sensors and methods |
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Also Published As
| Publication number | Publication date |
|---|---|
| DE19946935B4 (de) | 2004-02-05 |
| DE19946935A1 (de) | 2001-05-03 |
| EP1218759A1 (de) | 2002-07-03 |
| JP2003510612A (ja) | 2003-03-18 |
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