CA2073447A1 - Multifunction isolation transformer - Google Patents

Multifunction isolation transformer

Info

Publication number
CA2073447A1
CA2073447A1 CA002073447A CA2073447A CA2073447A1 CA 2073447 A1 CA2073447 A1 CA 2073447A1 CA 002073447 A CA002073447 A CA 002073447A CA 2073447 A CA2073447 A CA 2073447A CA 2073447 A1 CA2073447 A1 CA 2073447A1
Authority
CA
Canada
Prior art keywords
output
circuit
transmitter
sensor
loop
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.)
Abandoned
Application number
CA002073447A
Other languages
English (en)
French (fr)
Inventor
William R. Kirkpatrick
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rosemount Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2073447A1 publication Critical patent/CA2073447A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F19/00—Fixed transformers or mutual inductances of the signal type
    • H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
    • H01F19/08—Transformers having magnetic bias, e.g. for handling pulses
    • H01F2019/085—Transformer for galvanic isolation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Coils Or Transformers For Communication (AREA)
CA002073447A 1990-02-21 1991-02-21 Multifunction isolation transformer Abandoned CA2073447A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48306290A 1990-02-21 1990-02-21
US483,062 1990-02-21

Publications (1)

Publication Number Publication Date
CA2073447A1 true CA2073447A1 (en) 1991-08-22

Family

ID=23918489

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002073447A Abandoned CA2073447A1 (en) 1990-02-21 1991-02-21 Multifunction isolation transformer

Country Status (5)

Country Link
EP (1) EP0518916B1 (de)
AU (1) AU646847B2 (de)
CA (1) CA2073447A1 (de)
DE (1) DE69127075T2 (de)
WO (1) WO1991013417A1 (de)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4343540C2 (de) * 1993-12-14 1995-12-07 Mannesmann Ag Anordnung zur potentialgetrennten Übertragung von Gleich- und Wechselstromsignalen
US6008681A (en) * 1998-06-02 1999-12-28 Conexant Systems, Inc. Method and apparatus for deriving power from a clock signal coupled through a transformer
DE10054740A1 (de) * 2000-11-04 2002-05-16 Rheintacho Messtechnik Gmbh Schaltungsanordnung und Verfahren zum Betreiben eines Meßwertaufnehmers
US7773715B2 (en) * 2002-09-06 2010-08-10 Rosemount Inc. Two wire transmitter with isolated can output
DE10255741A1 (de) * 2002-11-28 2004-06-09 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Modularer Messumformer mit galvanisch getrennten Messfühler
US8145180B2 (en) 2004-05-21 2012-03-27 Rosemount Inc. Power generation for process devices
US8160535B2 (en) 2004-06-28 2012-04-17 Rosemount Inc. RF adapter for field device
US7262693B2 (en) 2004-06-28 2007-08-28 Rosemount Inc. Process field device with radio frequency communication
US7347099B2 (en) 2004-07-16 2008-03-25 Rosemount Inc. Pressure transducer with external heater
US7391297B2 (en) 2005-03-12 2008-06-24 Lutron Electronics Co., Inc. Handheld programmer for lighting control system
US8452255B2 (en) 2005-06-27 2013-05-28 Rosemount Inc. Field device with dynamically adjustable power consumption radio frequency communication
US7679033B2 (en) * 2005-09-29 2010-03-16 Rosemount Inc. Process field device temperature control
US8000841B2 (en) 2005-12-30 2011-08-16 Rosemount Inc. Power management in a process transmitter
DE102006009506B4 (de) 2006-02-27 2010-09-23 Phoenix Contact Gmbh & Co. Kg Bidirektionaler, galvanisch getrennter Übertragungskanal
US7656687B2 (en) 2007-12-11 2010-02-02 Cirrus Logic, Inc. Modulated transformer-coupled gate control signaling method and apparatus
US7796076B2 (en) 2008-02-26 2010-09-14 Cirrus Logic, Inc. Transformer-isolated analog-to-digital converter (ADC) feedback apparatus and method
WO2009154748A2 (en) 2008-06-17 2009-12-23 Rosemount Inc. Rf adapter for field device with low voltage intrinsic safety clamping
US8929948B2 (en) 2008-06-17 2015-01-06 Rosemount Inc. Wireless communication adapter for field devices
US8694060B2 (en) 2008-06-17 2014-04-08 Rosemount Inc. Form factor and electromagnetic interference protection for process device wireless adapters
US8847571B2 (en) 2008-06-17 2014-09-30 Rosemount Inc. RF adapter for field device with variable voltage drop
CN102084626B (zh) 2008-06-17 2013-09-18 罗斯蒙德公司 用于具有环路电流旁路的现场设备的rf适配器
DE102009002009A1 (de) * 2009-03-31 2010-10-07 Endress + Hauser Gmbh + Co. Kg Vorrichtung zur Reduzierung bzw. Minimierung von Störsignalen bei einem Feldgerät der Prozessautomatisierung
US8626087B2 (en) 2009-06-16 2014-01-07 Rosemount Inc. Wire harness for field devices used in a hazardous locations
US9674976B2 (en) 2009-06-16 2017-06-06 Rosemount Inc. Wireless process communication adapter with improved encapsulation
US10761524B2 (en) 2010-08-12 2020-09-01 Rosemount Inc. Wireless adapter with process diagnostics
US9310794B2 (en) 2011-10-27 2016-04-12 Rosemount Inc. Power supply for industrial process field device
DE102012112234A1 (de) * 2012-12-13 2014-06-18 Endress + Hauser Gmbh + Co. Kg Vorrichtung zur Synchronisierung von Taktfrequenzen
US9544027B2 (en) * 2014-02-19 2017-01-10 Texas Instruments Incorporated Loop powered transmitter with a single tap data isolation transformer and unipolar voltage converters
WO2016101212A1 (en) 2014-12-25 2016-06-30 Texas Instruments Incorporated Bi-directional electric energy meter
US10451468B2 (en) * 2017-01-24 2019-10-22 Magnetrol International, Incorporated Through air radar level transmitter with flushing port
US10389407B2 (en) 2017-11-17 2019-08-20 Texas Instruments Incorporated Electrical transformer to transmit data and power

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3764880A (en) * 1972-05-08 1973-10-09 Rosemount Inc Two-wire current transmitter with isolated transducer circuit
US4206397A (en) * 1978-03-13 1980-06-03 Rosemount Inc. Two wire current transmitter with improved voltage regulator
US4354190A (en) * 1980-04-04 1982-10-12 General Electric Company Rotor measurement system using reflected load transmission
US4758836A (en) * 1983-06-20 1988-07-19 Rockwell International Corporation Inductive coupling system for the bi-directional transmission of digital data

Also Published As

Publication number Publication date
AU646847B2 (en) 1994-03-10
EP0518916A4 (de) 1992-10-19
DE69127075D1 (de) 1997-09-04
EP0518916A1 (de) 1992-12-23
EP0518916B1 (de) 1997-07-30
DE69127075T2 (de) 1998-02-26
AU7349791A (en) 1991-09-18
WO1991013417A1 (en) 1991-09-05

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Dead