SE9403984L - voltage Measuring Circuit - Google Patents

voltage Measuring Circuit

Info

Publication number
SE9403984L
SE9403984L SE9403984A SE9403984A SE9403984L SE 9403984 L SE9403984 L SE 9403984L SE 9403984 A SE9403984 A SE 9403984A SE 9403984 A SE9403984 A SE 9403984A SE 9403984 L SE9403984 L SE 9403984L
Authority
SE
Sweden
Prior art keywords
voltage
measuring
measuring circuit
voltage measuring
switched
Prior art date
Application number
SE9403984A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9403984D0 (en
SE511049C2 (en
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
Publication of SE9403984D0 publication Critical patent/SE9403984D0/en
Publication of SE9403984L publication Critical patent/SE9403984L/en
Publication of SE511049C2 publication Critical patent/SE511049C2/en

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

Landscapes

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

Abstract

The invention relates to a voltage measuring circuit, especially for measuring the output voltage of a switched-mode power supply. According to the invention a first switching transistor (TR2) periodically switches the output voltage to a primary winding (W4) of a measuring transformer (T2). The induced secondary voltage of the transformer (T2) is rectified and switched to a control circuit by a second switching transistor (TR3). The first and second transistors are synchronized and exhibit a resistive voltage/current behaviour in a conducting state. <IMAGE>
SE9801004A 1992-05-21 1994-11-17 Device for evaporating gas at a nuclear power circuit to measure the output voltage of a switching current source SE511049C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI922315A FI94686C (en) 1992-05-21 1992-05-21 The voltage measuring circuit
PCT/FI1993/000210 WO1993023915A1 (en) 1992-05-21 1993-05-19 Voltage measuring circuit

Publications (3)

Publication Number Publication Date
SE9403984D0 SE9403984D0 (en) 1994-11-17
SE9403984L true SE9403984L (en) 1994-11-17
SE511049C2 SE511049C2 (en) 1999-07-26

Family

ID=8535329

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9801004A SE511049C2 (en) 1992-05-21 1994-11-17 Device for evaporating gas at a nuclear power circuit to measure the output voltage of a switching current source

Country Status (6)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4269515B2 (en) 2000-12-25 2009-05-27 パナソニック電工株式会社 Electric quantity detection sensor
DE102005015942A1 (en) * 2005-04-07 2006-10-12 Abb Patent Gmbh Device for supplying power to measuring sensors and transmitting a synchronous clock signal to them
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 (en) * 1984-01-20 1985-07-25 Westinghouse Electric Corp., Pittsburgh, Pa. DC-DC CONVERTER
US4709315A (en) * 1986-11-24 1987-11-24 Rockwell International Corporation Isolated controller circuit

Also Published As

Publication number Publication date
SE9403984D0 (en) 1994-11-17
GB2283115A (en) 1995-04-26
DE4392104T1 (en) 1995-05-11
WO1993023915A1 (en) 1993-11-25
FI94686B (en) 1995-06-30
GB9423240D0 (en) 1995-02-15
FI922315A0 (en) 1992-05-21
FI922315A (en) 1993-11-22
AU4071093A (en) 1993-12-13
FI94686C (en) 1995-10-10
SE511049C2 (en) 1999-07-26
GB2283115B (en) 1996-04-17

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Legal Events

Date Code Title Description
NUG Patent has lapsed