NL8104462A - Inrichting voor het opwekken van magnetische gelijkvelden van wisselende polariteit voor de magnetisch-induktieve doorstroommeting. - Google Patents

Inrichting voor het opwekken van magnetische gelijkvelden van wisselende polariteit voor de magnetisch-induktieve doorstroommeting. Download PDF

Info

Publication number
NL8104462A
NL8104462A NL8104462A NL8104462A NL8104462A NL 8104462 A NL8104462 A NL 8104462A NL 8104462 A NL8104462 A NL 8104462A NL 8104462 A NL8104462 A NL 8104462A NL 8104462 A NL8104462 A NL 8104462A
Authority
NL
Netherlands
Prior art keywords
capacitor
current
field coil
voltage source
diode
Prior art date
Application number
NL8104462A
Other languages
English (en)
Dutch (nl)
Original Assignee
Flowtec Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Flowtec Ag filed Critical Flowtec Ag
Publication of NL8104462A publication Critical patent/NL8104462A/nl

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/66—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will
    • H03K17/661—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to both load terminals
    • H03K17/662—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to both load terminals each output circuit comprising more than one controlled bipolar transistor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
    • G01F1/58—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
    • G01F1/60—Circuits therefor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/04—Modifications for accelerating switching
    • H03K17/041—Modifications for accelerating switching without feedback from the output circuit to the control circuit
    • H03K17/0416—Modifications for accelerating switching without feedback from the output circuit to the control circuit by measures taken in the output circuit
    • H03K17/04166—Modifications for accelerating switching without feedback from the output circuit to the control circuit by measures taken in the output circuit in bipolar transistor switches
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/64—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors having inductive loads

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electronic Switches (AREA)
  • Measuring Magnetic Variables (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Measuring Volume Flow (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Relay Circuits (AREA)
  • Rectifiers (AREA)
NL8104462A 1980-10-02 1981-09-30 Inrichting voor het opwekken van magnetische gelijkvelden van wisselende polariteit voor de magnetisch-induktieve doorstroommeting. NL8104462A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3037305 1980-10-02
DE3037305A DE3037305C2 (de) 1980-10-02 1980-10-02 Anordnung zur Erzeugung magnetischer Gleichfelder wechselnder Polarität für die magnetisch-induktive Durchflußmessung

Publications (1)

Publication Number Publication Date
NL8104462A true NL8104462A (nl) 1982-05-03

Family

ID=6113475

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8104462A NL8104462A (nl) 1980-10-02 1981-09-30 Inrichting voor het opwekken van magnetische gelijkvelden van wisselende polariteit voor de magnetisch-induktieve doorstroommeting.

Country Status (11)

Country Link
US (1) US4410926A (fr)
JP (1) JPS5764910A (fr)
BE (1) BE890573A (fr)
CH (1) CH655795A5 (fr)
DD (1) DD201727A5 (fr)
DE (1) DE3037305C2 (fr)
FR (1) FR2491620B1 (fr)
GB (1) GB2084827B (fr)
IT (1) IT1138649B (fr)
NL (1) NL8104462A (fr)
SE (1) SE458311B (fr)

Families Citing this family (96)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3334152A1 (de) * 1983-09-21 1985-04-04 Fischer & Porter GmbH, 3400 Göttingen Magnetisch induktiver durchflussmesser
DE3442272A1 (de) * 1984-11-20 1986-05-22 Turbo-Werk Messtechnik GmbH, 5000 Köln Induktiver durchflussmesser
AT392384B (de) * 1985-02-04 1991-03-25 Zumtobel Ag Vorschaltgeraet zum betrieb von gasentladungslampen mit gleichstrom
DE3512921A1 (de) * 1985-04-11 1986-10-16 Turbo-Werk Messtechnik GmbH, 5000 Köln Schaltungsanordnung zur erzeugung eines pulsierenden magnetischen feldes in der erregerspule eines induktiven durchflussmessers
GB8530930D0 (en) * 1985-12-16 1986-01-29 Mansfield P Inductive circuit arrangements
DE3616407A1 (de) * 1986-05-15 1987-11-19 Bopp & Reuther Gmbh Induktiver durchflussmesser
NL8601331A (nl) * 1986-05-26 1987-12-16 At & T & Philips Telecomm Zender voor isdn s-bus koppelvlakcircuit.
EP0250718A1 (fr) * 1986-06-30 1988-01-07 Siemens Aktiengesellschaft Alimentation de courant pour charge inductive, plus particulièrement pour bobine de gradient avec dispositif de commande et de régulation
NL8601798A (nl) * 1986-07-10 1988-02-01 Hollandse Signaalapparaten Bv Energieomzetter.
US4868504A (en) * 1987-02-09 1989-09-19 Flr, Inc. Apparatus and method for locating metal objects and minerals in the ground with return of energy from transmitter coil to power supply
US4879641A (en) * 1987-11-02 1989-11-07 Sgs-Thomson Microelectronics S.R.L. Analog multiplex for sensing the magnitude and sense of the current through a h-bridge stage utilizing a single sensing resistance
EP0332974B1 (fr) * 1988-03-18 1992-10-14 Siemens Aktiengesellschaft Protection contre les court-circuits pour un convertisseur d'impulsions alimentant une macine électriqe utilisée aussi bien en génératrice qu'en réceptrice
US4916381A (en) * 1988-05-12 1990-04-10 Rosemount Inc. Current source for a variable load with an inductive component
JPH078300B2 (ja) * 1988-06-21 1995-02-01 三菱電機株式会社 荷電粒子ビームの照射装置
JPH0695031B2 (ja) * 1988-10-31 1994-11-24 株式会社島津製作所 電磁流量計
DE3907057A1 (de) * 1989-03-04 1990-09-13 Thomson Brandt Gmbh Schaltungsanordnung zur umkehrung eines magnetfeldes
US4920470A (en) * 1989-05-17 1990-04-24 Zirco, Inc. Voltage inverter
US5222012A (en) * 1991-01-17 1993-06-22 International Business Machines Corporation Power management circuit for a magnetic repulsion punch
DE59106867D1 (de) * 1991-06-08 1995-12-14 Flowtec Ag Magnetisch-induktiver Durchflussmesser.
US5350992A (en) * 1991-09-17 1994-09-27 Micro-Trak Systems, Inc. Motor control circuit
DE59509590D1 (de) * 1995-10-20 2001-10-18 Flowtec Ag Magnetisch-induktiver Durchflussmesser zur Messung von nicht-newtonschen Flüssigkeiten
UA53671C2 (uk) * 1996-11-07 2003-02-17 Англо Амерікан Корпорейшн Оф Саут Африка Лімітед Генератор імпульсів для збудження котушки періодичними біполярними імпульсами (варіанти) та спосіб генерування послідовності періодичних біполярних імпульсів струму (варіанти)
JP2976923B2 (ja) * 1997-04-25 1999-11-10 日本電気株式会社 容量性負荷の駆動装置
WO1999016056A1 (fr) * 1997-09-22 1999-04-01 Matsushita Electric Industrial Co., Ltd. Circuit de commande d'ecriture
US6031740A (en) * 1998-07-03 2000-02-29 Endress + Hauser Flowtec Ag Method of regulating the coil current of electromagnetic flow sensors
EP0969268A1 (fr) * 1998-07-03 2000-01-05 Endress + Hauser Flowtec AG Méthode de régulation de courant de bobine d'un capteur de débit électromagnétique
JP3043757B2 (ja) * 1998-07-03 2000-05-22 エンドレス ウント ハウザー フローテック アクチエンゲゼルシャフト コイルアセンブリを流れるコイル電流の調整方法
DE19905003A1 (de) * 1999-02-08 2000-08-10 Wagner Kg Umpolsteuergerät
US6218831B1 (en) * 1999-05-19 2001-04-17 Arthur D. Little, Inc. Low power fluxgate circuit with current balance
EP1158279A1 (fr) 2000-05-22 2001-11-28 Endress + Hauser Flowtec AG Circuit de régulation de courant d'un débitmètre inductif pour produire un courant d'alimentation pour un circuit d'excitation
SG96239A1 (en) 2000-09-27 2003-05-23 Seagate Technology Llc Data head writer coil testing
AUPR083800A0 (en) * 2000-10-17 2000-11-09 Bhc Consulting Pty Ltd Ground mineralisation rejecting metal detector (power saving)
GB0200027D0 (en) 2002-01-02 2002-02-13 Bae Systems Plc Improvements relating to operation of a current controller
GB0200024D0 (en) 2002-01-02 2002-02-13 Bae Systems Plc A switching circuit and a method of operation thereof
GB0200030D0 (en) 2002-01-02 2002-02-13 Bae Systems Plc A switching circuit and a method of operation thereof
DE10356009B4 (de) * 2003-11-27 2007-10-18 Krohne Meßtechnik GmbH & Co KG Magnetisch-induktives Durchflußmeßgerät und Verfahren zum Betreiben eines magnetisch-induktiven Durchflußmeßgeräts
DE102004046238A1 (de) 2004-09-22 2006-03-23 Endress + Hauser Flowtec Ag Magnetisch-induktives Durchflussmessgerät
DE102005016826A1 (de) * 2005-04-12 2006-10-19 Trw Automotive Gmbh Ansteuerschaltung für einen impulsgesteuerten Aktor
US7194918B2 (en) * 2005-08-26 2007-03-27 Krohne Messtechnik Gmbh & Co. Kg Magnetoinductive flowmeter and method for operating a magnetoinductive flowmeter
JP4761219B2 (ja) * 2007-03-27 2011-08-31 独立行政法人情報通信研究機構 水平面ビーム走査型アンテナ
DE102007015368A1 (de) 2007-03-28 2008-10-02 Endress + Hauser Flowtec Ag Verfahren zum Betreiben eines magnetisch-induktiven Durchflußmeßgeräts
US9250348B2 (en) 2011-12-19 2016-02-02 Minelab Electronics Pty Limited Transmit signal of a metal detector controlled by feedback loops
DE102011087827A1 (de) * 2011-12-06 2013-06-06 Endress + Hauser Flowtec Ag Verfahren und Schaltung zur Netzsynchronisation eines magnetisch-induktiven Durchflussmessgeräts
JP5843670B2 (ja) * 2012-03-15 2016-01-13 アズビル株式会社 電磁流量計の励磁回路
CN102680934A (zh) * 2012-05-31 2012-09-19 株洲南车时代电气股份有限公司 电流传感器测试用电流换向装置
JP2014128175A (ja) * 2012-12-27 2014-07-07 Nidec Sankyo Corp 磁界発生装置および磁気記録媒体処理装置
CN105307553B (zh) * 2013-03-14 2018-06-29 基文影像公司 用于抑制操纵装置期间的电磁干扰的方法和电路
US9829545B2 (en) 2015-11-20 2017-11-28 Lockheed Martin Corporation Apparatus and method for hypersensitivity detection of magnetic field
US9835693B2 (en) 2016-01-21 2017-12-05 Lockheed Martin Corporation Higher magnetic sensitivity through fluorescence manipulation by phonon spectrum control
US20160216304A1 (en) 2015-01-28 2016-07-28 Lockheed Martin Corporation Rapid high-resolution magnetic field measurements for power line inspection
US9551763B1 (en) 2016-01-21 2017-01-24 Lockheed Martin Corporation Diamond nitrogen vacancy sensor with common RF and magnetic fields generator
US9853837B2 (en) 2014-04-07 2017-12-26 Lockheed Martin Corporation High bit-rate magnetic communication
US10012704B2 (en) 2015-11-04 2018-07-03 Lockheed Martin Corporation Magnetic low-pass filter
US9910104B2 (en) 2015-01-23 2018-03-06 Lockheed Martin Corporation DNV magnetic field detector
US9638821B2 (en) 2014-03-20 2017-05-02 Lockheed Martin Corporation Mapping and monitoring of hydraulic fractures using vector magnetometers
US9614589B1 (en) 2015-12-01 2017-04-04 Lockheed Martin Corporation Communication via a magnio
US10088452B2 (en) 2016-01-12 2018-10-02 Lockheed Martin Corporation Method for detecting defects in conductive materials based on differences in magnetic field characteristics measured along the conductive materials
US10168393B2 (en) 2014-09-25 2019-01-01 Lockheed Martin Corporation Micro-vacancy center device
US10006973B2 (en) 2016-01-21 2018-06-26 Lockheed Martin Corporation Magnetometer with a light emitting diode
US9910105B2 (en) 2014-03-20 2018-03-06 Lockheed Martin Corporation DNV magnetic field detector
US9541610B2 (en) 2015-02-04 2017-01-10 Lockheed Martin Corporation Apparatus and method for recovery of three dimensional magnetic field from a magnetic detection system
US10338162B2 (en) 2016-01-21 2019-07-02 Lockheed Martin Corporation AC vector magnetic anomaly detection with diamond nitrogen vacancies
WO2015157290A1 (fr) 2014-04-07 2015-10-15 Lockheed Martin Corporation Circuit générateur de champ magnétique à commande orientée vers l'efficacité énergétique
WO2016118756A1 (fr) 2015-01-23 2016-07-28 Lockheed Martin Corporation Appareil et procédé pour mesure de magnétométrie à haute sensibilité et traitement de signal dans un système de détection magnétique
EP3250887A4 (fr) 2015-01-28 2018-11-14 Lockheed Martin Corporation Procédés et systèmes de navigation magnétique à l'aide d'un réseau de distribution électrique et d'un réseau de communication
GB2550809A (en) 2015-02-04 2017-11-29 Lockheed Corp Apparatus and method for estimating absolute axes' orientations for a magnetic detection system
GB2560283A (en) 2015-11-20 2018-09-05 Lockheed Corp Apparatus and method for closed loop processing for a magnetic detection system
WO2017127098A1 (fr) 2016-01-21 2017-07-27 Lockheed Martin Corporation Hydrophone à ferrofluide à détection de lacune d'azote dans une structure diamant
GB2562957A (en) 2016-01-21 2018-11-28 Lockheed Corp Magnetometer with light pipe
WO2017127096A1 (fr) 2016-01-21 2017-07-27 Lockheed Martin Corporation Capteur d'azote-lacune de diamant avec doubles sources rf
EP3405603A4 (fr) 2016-01-21 2019-10-16 Lockheed Martin Corporation Capteur azote-lacune de diamant avec circuit sur le diamant
US20170343621A1 (en) 2016-05-31 2017-11-30 Lockheed Martin Corporation Magneto-optical defect center magnetometer
US10274550B2 (en) 2017-03-24 2019-04-30 Lockheed Martin Corporation High speed sequential cancellation for pulsed mode
US10345395B2 (en) 2016-12-12 2019-07-09 Lockheed Martin Corporation Vector magnetometry localization of subsurface liquids
US10371765B2 (en) 2016-07-11 2019-08-06 Lockheed Martin Corporation Geolocation of magnetic sources using vector magnetometer sensors
US10228429B2 (en) 2017-03-24 2019-03-12 Lockheed Martin Corporation Apparatus and method for resonance magneto-optical defect center material pulsed mode referencing
US10338163B2 (en) 2016-07-11 2019-07-02 Lockheed Martin Corporation Multi-frequency excitation schemes for high sensitivity magnetometry measurement with drift error compensation
US10408890B2 (en) 2017-03-24 2019-09-10 Lockheed Martin Corporation Pulsed RF methods for optimization of CW measurements
US10527746B2 (en) 2016-05-31 2020-01-07 Lockheed Martin Corporation Array of UAVS with magnetometers
DE102016110024A1 (de) * 2016-05-31 2017-11-30 Endress + Hauser Flowtec Ag Verfahren zum Betreiben eines magnetisch-induktiven Durchflussmessgeräts zur Messung der Durchflussgeschwindigkeit oder des Volumendurchflusses eines Mediums in einem Messrohr
US10281550B2 (en) 2016-11-14 2019-05-07 Lockheed Martin Corporation Spin relaxometry based molecular sequencing
US10677953B2 (en) 2016-05-31 2020-06-09 Lockheed Martin Corporation Magneto-optical detecting apparatus and methods
US10330744B2 (en) 2017-03-24 2019-06-25 Lockheed Martin Corporation Magnetometer with a waveguide
US10571530B2 (en) 2016-05-31 2020-02-25 Lockheed Martin Corporation Buoy array of magnetometers
US10359479B2 (en) 2017-02-20 2019-07-23 Lockheed Martin Corporation Efficient thermal drift compensation in DNV vector magnetometry
US10145910B2 (en) 2017-03-24 2018-12-04 Lockheed Martin Corporation Photodetector circuit saturation mitigation for magneto-optical high intensity pulses
US10317279B2 (en) 2016-05-31 2019-06-11 Lockheed Martin Corporation Optical filtration system for diamond material with nitrogen vacancy centers
US10345396B2 (en) 2016-05-31 2019-07-09 Lockheed Martin Corporation Selected volume continuous illumination magnetometer
US10371760B2 (en) 2017-03-24 2019-08-06 Lockheed Martin Corporation Standing-wave radio frequency exciter
US10459041B2 (en) 2017-03-24 2019-10-29 Lockheed Martin Corporation Magnetic detection system with highly integrated diamond nitrogen vacancy sensor
US10379174B2 (en) 2017-03-24 2019-08-13 Lockheed Martin Corporation Bias magnet array for magnetometer
US10338164B2 (en) 2017-03-24 2019-07-02 Lockheed Martin Corporation Vacancy center material with highly efficient RF excitation
DE102017107417A1 (de) 2017-04-06 2018-10-11 Endress+Hauser Flowtec Ag Verfahren zum Regeln eines in einer Spulenanordnung fließenden Spulenstroms und eine Schaltungsanordnung
JP6999300B2 (ja) * 2017-06-30 2022-01-18 日本電産サンキョー株式会社 磁気記録媒体処理装置および妨害磁界発生方法
EP3649438A1 (fr) * 2017-07-07 2020-05-13 Apator Miitors ApS Débitmètre électromagnétique
EP3460419B1 (fr) * 2017-09-22 2020-04-01 VEGA Grieshaber KG Agencement de mesure, appareil de mesure doté d'un agencement de mesure et méthode pour opérer l'appareil de mesure

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3284692A (en) * 1963-06-05 1966-11-08 Lambda Electronics Corp Compensated regulated power supply
US3684983A (en) * 1970-06-19 1972-08-15 E & M Lab High speed circulator switch
US3733538A (en) * 1972-03-28 1973-05-15 Westinghouse Electric Corp Apparatus for limiting instantaneous inverter current
US3896346A (en) * 1972-11-21 1975-07-22 Electronic Camshaft Corp High speed electromagnet control circuit
US3893006A (en) * 1974-01-14 1975-07-01 Nordson Corp High voltage power supply with overcurrent protection
US3955413A (en) * 1974-03-27 1976-05-11 Steele James R Electrical system for electromagnetically measuring flow of fluid
DE2744845C3 (de) * 1977-10-05 1985-08-08 Flowtec AG, Reinach, Basel Verfahren zur Kompensation der elektrochemischen Störgleichspannung bei der magnetisch-induktiven Durchflußmessung mit periodisch umgepoltem magnetischem Gleichfeld
DE2934990C2 (de) * 1979-08-30 1985-04-18 Eckardt Ag, 7000 Stuttgart Anordnung zur magnetischen Durchflußmessung

Also Published As

Publication number Publication date
JPS5764910A (en) 1982-04-20
JPS6325691B2 (fr) 1988-05-26
IT1138649B (it) 1986-09-17
SE8105807L (sv) 1982-04-03
FR2491620A1 (fr) 1982-04-09
IT8124179A0 (it) 1981-09-28
FR2491620B1 (fr) 1986-05-30
BE890573A (fr) 1982-02-01
GB2084827A (en) 1982-04-15
CH655795A5 (de) 1986-05-15
DE3037305C2 (de) 1986-04-03
DD201727A5 (de) 1983-08-03
US4410926A (en) 1983-10-18
GB2084827B (en) 1984-09-05
DE3037305A1 (de) 1982-06-24
SE458311B (sv) 1989-03-13

Similar Documents

Publication Publication Date Title
NL8104462A (nl) Inrichting voor het opwekken van magnetische gelijkvelden van wisselende polariteit voor de magnetisch-induktieve doorstroommeting.
KR100405597B1 (ko) 임펄스하이-레벨 출력스테이지 공급 회로배치
US5663647A (en) Switching gradient amplifier with adjustable DC bus voltage
CA1303675C (fr) Source d'alimentation pour charge variable, a composante inductive
JP2718416B2 (ja) 電流制限回路付き直流電圧変換器
JPH02501105A (ja) スイッチ回路の制御方法及びスイッチ回路
US20020191424A1 (en) Method for providing current by means of an inductive component
US3406327A (en) Electric power inverter having a well regulated, nearly sinusoidal output voltage
EP0428078A2 (fr) Circuit à modulation de largeur d'impulsion pour l'actionnement d'une charge
US4985818A (en) DC voltage converter with formation of the actual current value
US6373732B1 (en) Apparatus and method for parallel synchronous power converters
US3421027A (en) Control for dynamoelectric machine having a pair of capacitive timing circuits interconnected to control firing of a triggered switch
US20050068706A1 (en) Driver system for MOSFET based, high voltage, electronic relays for AC power switching and inductive loads
NL8901033A (nl) Stuurschakeling voor ten minste een klokelektrode van een geintegreerd circuit.
JPH10327058A (ja) スイッチング終段用の制御装置
ES2102174T3 (es) Dispositivo de control de variacion de potencia y/o de velocidad de una carga.
US6081439A (en) Inverter provided with output regulating mechanism
US4920281A (en) Proximity switch circuit
CN114096857A (zh) 用于测量流经pwm控制电感负载的电流的设备和方法
US9356515B2 (en) Power switching device, three phase bridge inverter, and method of operating a power switching device
CN111464003A (zh) 驱动电路
US3287571A (en) Solid state a.-c. contact utilizing silicon controlled rectifiers
JP3792314B2 (ja) 電磁石励磁コイル用電源供給回路
KR20190046654A (ko) 고전압 인버터의 전압 측정 장치 및 방법
US20210226566A1 (en) Method and circuit arrangement for controlling a stepper motor

Legal Events

Date Code Title Description
A1A A request for search or an international-type search has been filed
BB A search report has been drawn up
A85 Still pending on 85-01-01
BC A request for examination has been filed
DNT Communications of changes of names of applicants whose applications have been laid open to public inspection

Free format text: ENDRESS + HAUSER FLOWTEC AG

BV The patent application has lapsed