FI94686B - Spänningsmätkrets - Google Patents

Spänningsmätkrets Download PDF

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Publication number
FI94686B
FI94686B FI922315A FI922315A FI94686B FI 94686 B FI94686 B FI 94686B FI 922315 A FI922315 A FI 922315A FI 922315 A FI922315 A FI 922315A FI 94686 B FI94686 B FI 94686B
Authority
FI
Finland
Prior art keywords
transformer
voltage
measuring circuit
control
primary
Prior art date
Application number
FI922315A
Other languages
English (en)
Finnish (fi)
Other versions
FI922315A0 (sv
FI922315A (sv
FI94686C (sv
Inventor
Matti Tuominen
Original Assignee
Nokia Telecommunications Oy
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 Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Priority to FI922315A priority Critical patent/FI94686C/sv
Publication of FI922315A0 publication Critical patent/FI922315A0/sv
Priority to PCT/FI1993/000210 priority patent/WO1993023915A1/en
Priority to GB9423240A priority patent/GB2283115B/en
Priority to DE4392104T priority patent/DE4392104T1/de
Priority to AU40710/93A priority patent/AU4071093A/en
Publication of FI922315A publication Critical patent/FI922315A/sv
Priority to SE9801004A priority patent/SE511049C2/sv
Publication of FI94686B publication Critical patent/FI94686B/sv
Application granted granted Critical
Publication of FI94686C publication Critical patent/FI94686C/sv

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
    • 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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/40—Testing power supplies
    • G01R31/42—AC power supplies
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
    • H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)

Claims (8)

1. Spänningsmätningskrets speciellt för mätning av utspänningen frän en effektkälla av choppertyp omfattande 5 en transformator (T2) med en primär- ooh sekundär- lindning (W4, W5), ett med transformatorns primärlindning (W4) mellan mätkretsens ingängsterminaler (A, B) seriekopplat första kopplarorgan (TR2) för periodisk koppling av mätspänning 10 tili transformatorns primärlindning (W4), k ä n n e -tecknat av att mätkretsen dessutom omfattar ett med sekundärlindningen (W5) mellan mätkretsens utgängsterminaler (C, D) seriekopplat andra kopplarorgan (TR3) för likriktning av i transformatorns sekundärlind-15 ning inducerad spänning ooh koppling av densamma tili mätkretsens utgängsterminaler (C, D), och ett organ (43, 44) för synkronisering av det första och andra kopplarorganet med varandra, och att det första och andra kopplarorganet (TR2, TR3) har en resistiv spän-20 nings/strömfunktion i ledande tillständ.
2. Mätkrets enligt patentkrav 1, känneteck-n a d av att det första och andra kopplarorganet (TR2, TR3) utgörs av halvledarkopplingskomponenter, företrädes-vis MOSFET-kopplingskomponenter. '« 25
3. Mätkrets enligt patentkrav 1 eller 2, k ä n - netecknad av att organet för synkronisering av det första och andra kopplarorganet (TR2, TR3) styr kopp-larorganen med hjälp av frän choppereffektkällan erhällna styrsignaler. 30
4. Mätkrets enligt patentkrav 3,känneteck- n a d av att choppereffektkällan omfattar en effekttrans-formator (Tl) med en primär- och sekundärlindning (Wl, W2) och att organet för synkronisering av det första och andra kopplarorganet (TR2, TR3) omfattar en första styrkrets 35 (44), som styr det första kopplarorganet med en frän ef- il 94685 fekttransformatorns sekundärsida erhällen första styrsig-nal, och en andra styrkrets (43), som styr det andra kopp-larorganet med en frän effekttransformatorns primärsida erhällen andra styrsignal, som har samma frekvens som den 5 första styrsignalen.
5. Mätkrets enligt patentkrav 4, känneteck-n a d av att den första styrsignalen bildas av spänningen i effekttransformatorns sekundärlindning (W2) och den andra styrsignalen bildas av primärlindningens (Wl) spän- 10 ning.
6. Mätkrets enligt patentkrav 3, 4 eller 5, k ä n-netecknad av att styrsignalernas frekvens är samma som choppereffektkällans operationsfrekvens.
7. Mätkrets enligt patentkrav 1 eller 2, k ä n n e-15 tecknad av att organet för synkronisering av det första och andra kopplarorganet (TR2, TR3) omfattar en första styrkrets (54), som styr det första kopplarorganet, en andra styrkrets (53), som styr det andra kopplarorganet, samt en transformator (T3), via vilken styrkretsarna 20 synkroniserats med varandra.
8. Mätkrets enligt nägot av de föregäende patent-kraven, kännetecknad av att choppereffektkäl-lan omfattar en effekttransformator (Tl) med en primär- .. och sekundärlindning (Wl, W2), samt en tili effekttrans- . 25 formatorns primärsida kopplad, primärspänningen reglerande reglerkrets (42, TRI), och att mätkretsens utgängstermina-ler (C, D) är kopplade tili nämdna reglerkrets.
FI922315A 1992-05-21 1992-05-21 Spänningsmätkrets FI94686C (sv)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FI922315A FI94686C (sv) 1992-05-21 1992-05-21 Spänningsmätkrets
PCT/FI1993/000210 WO1993023915A1 (en) 1992-05-21 1993-05-19 Voltage measuring circuit
GB9423240A GB2283115B (en) 1992-05-21 1993-05-19 Voltage measuring circuit
DE4392104T DE4392104T1 (de) 1992-05-21 1993-05-19 Spannungsmeßschaltung
AU40710/93A AU4071093A (en) 1992-05-21 1993-05-19 Voltage measuring circuit
SE9801004A SE511049C2 (sv) 1992-05-21 1994-11-17 Anordning för avdrivning av gas vid en kärnkraftanKrets för att mäta utgångsspänningen för en koppliläggning ngsströmkälla

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI922315A FI94686C (sv) 1992-05-21 1992-05-21 Spänningsmätkrets
FI922315 1992-05-21

Publications (4)

Publication Number Publication Date
FI922315A0 FI922315A0 (sv) 1992-05-21
FI922315A FI922315A (sv) 1993-11-22
FI94686B true FI94686B (sv) 1995-06-30
FI94686C FI94686C (sv) 1995-10-10

Family

ID=8535329

Family Applications (1)

Application Number Title Priority Date Filing Date
FI922315A FI94686C (sv) 1992-05-21 1992-05-21 Spänningsmätkrets

Country Status (6)

Country Link
AU (1) AU4071093A (sv)
DE (1) DE4392104T1 (sv)
FI (1) FI94686C (sv)
GB (1) GB2283115B (sv)
SE (1) SE511049C2 (sv)
WO (1) WO1993023915A1 (sv)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4269515B2 (ja) 2000-12-25 2009-05-27 パナソニック電工株式会社 電気量検出センサ
DE102005015942A1 (de) * 2005-04-07 2006-10-12 Abb Patent Gmbh Einrichtung zur Energieversorgung von Messsensoren und Übertragung eins synchronen Taktsignals an diese
US8929053B2 (en) * 2010-09-13 2015-01-06 William Henry Morong Direct-current current transformer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4495554A (en) * 1983-03-28 1985-01-22 International Business Machines Corporation Isolated power supply feedback
DE3500627A1 (de) * 1984-01-20 1985-07-25 Westinghouse Electric Corp., Pittsburgh, Pa. Gleichstrom-gleichstromwandler
US4709315A (en) * 1986-11-24 1987-11-24 Rockwell International Corporation Isolated controller circuit

Also Published As

Publication number Publication date
FI922315A0 (sv) 1992-05-21
FI922315A (sv) 1993-11-22
SE9403984D0 (sv) 1994-11-17
SE511049C2 (sv) 1999-07-26
SE9403984L (sv) 1994-11-17
WO1993023915A1 (en) 1993-11-25
DE4392104T1 (de) 1995-05-11
GB2283115A (en) 1995-04-26
AU4071093A (en) 1993-12-13
FI94686C (sv) 1995-10-10
GB9423240D0 (en) 1995-02-15
GB2283115B (en) 1996-04-17

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Owner name: NOKIA TELECOMMUNICATIONS OY

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