MY143887A - Dc current detection method and apparatus for high-frequency power source apparatus - Google Patents

Dc current detection method and apparatus for high-frequency power source apparatus

Info

Publication number
MY143887A
MY143887A MYPI20070892A MYPI20070892A MY143887A MY 143887 A MY143887 A MY 143887A MY PI20070892 A MYPI20070892 A MY PI20070892A MY PI20070892 A MYPI20070892 A MY PI20070892A MY 143887 A MY143887 A MY 143887A
Authority
MY
Malaysia
Prior art keywords
current
frequency power
power source
circuit
detector
Prior art date
Application number
MYPI20070892A
Inventor
Iwao Kurata
Toshiyuki Kano
Original Assignee
Fuji Electric Systems Co Ltd
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 Fuji Electric Systems Co Ltd filed Critical Fuji Electric Systems Co Ltd
Publication of MY143887A publication Critical patent/MY143887A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0092—Measuring current only
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/14—Indicating direction of current; Indicating polarity of voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/08—Measuring electromagnetic field characteristics
    • G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
    • G01R29/0892—Details related to signal analysis or treatment; presenting results, e.g. displays; measuring specific signal features other than field strength, e.g. polarisation, field modes, phase, envelope, maximum value
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/04—Sources of current

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • General Induction Heating (AREA)

Abstract

PROBLEM: A METHOD AND AN APPARATUS FOR DETECTING A DC CURRENT ARE PROVIDED TO REDUCE THE PRICE OF A HIGH-FREQUENCY POWER SOURCE APPARATUS SUITABLE FOR FEEDING POWER TO A HIGH-FREQUENCY INDUCTION HEATING EQUIPMENT FOR COMPOSING A RESONANCE CIRCUIT. MEANS TO SOLVE THE PROBLEM: A HIGH-FREQUENCY POWER SOURCE DEVICE (HFP1) INCLUDES A SMOOTHING CAPACITOR CIRCUIT WHICH CONSISTS OF CAPACITORS CN11 – C1N , A HIGH-FREQUENCY POWER INVERSION CIRCUIT WHICH CONSISTS OF IGBTS Q11 - Q14, ETC., A CONTROL CIRCUIT (11), AN AC CURRENT DETECTOR (12), A CURRENT CALCULATION UNIT (14), AN AC VOLTAGE DETECTOR (15), AND AN AC CURRENT DETECTOR (16). THE CURRENT CALCULATION UNIT (14) OBTAINS A CURRENT IDC* EQUIVALENT TO A CURRENT IDC FROM A DC POWER SOURCE WHICH FEEDS DC POWER TO THE HIGH-FREQUENCY POWER SOURCE, FROM THE OUTPUT CURRENT I0 OF THE HIGH-FREQUENCY POWER INVERSION CIRCUIT DETECTED BY THE AC CURRENT DETECTOR (12) AND THE CURRENT IC OF THE SMOOTHING CAPACITOR CIRCUIT DETECTED BY THE AC CURRENT DETECTOR (16), ON THE BASIS OF THE OUTPUT VOLTAGE VO OF THE HIGH-FREQUENCY POWER INVERSION CIRCUIT.
MYPI20070892A 2006-06-19 2007-06-05 Dc current detection method and apparatus for high-frequency power source apparatus MY143887A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006168291 2006-06-19

Publications (1)

Publication Number Publication Date
MY143887A true MY143887A (en) 2011-07-15

Family

ID=38991595

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI20070892A MY143887A (en) 2006-06-19 2007-06-05 Dc current detection method and apparatus for high-frequency power source apparatus

Country Status (3)

Country Link
KR (1) KR100868141B1 (en)
CN (1) CN100559191C (en)
MY (1) MY143887A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102331563B (en) * 2011-08-04 2013-10-16 江苏茶花电气有限公司 Method for testing ultrahigh frequency multi-channel switching power supply

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2783721B2 (en) 1992-04-27 1998-08-06 株式会社中央製作所 Inverter controlled electric resistance welding machine
JP3931007B2 (en) 1999-10-29 2007-06-13 日立アプライアンス株式会社 Induction heating cooker
JP2002075623A (en) 2000-09-04 2002-03-15 Mitsubishi Electric Corp Induction heating cooker and control method thereof
JP2003009597A (en) * 2001-06-20 2003-01-10 Fuji Electric Co Ltd Output voltage monitoring device for motor drive power converter
JP2003282225A (en) 2002-03-22 2003-10-03 Fuji Electric Co Ltd Induction heating device
JP3986462B2 (en) * 2003-04-11 2007-10-03 松下電器産業株式会社 High frequency heating device
JP2005019176A (en) 2003-06-26 2005-01-20 Hitachi Hometec Ltd Induction heating cooker
JP2005166499A (en) 2003-12-03 2005-06-23 Fuji Electric Fa Components & Systems Co Ltd Induction heating inverter control method
JP4266811B2 (en) * 2003-12-26 2009-05-20 株式会社リコー Constant voltage circuit
JP3811955B2 (en) * 2004-08-24 2006-08-23 株式会社安川電機 Brushless DC motor driving apparatus and driving method, and brushless DC motor rotor speed or rotor phase detection method

Also Published As

Publication number Publication date
CN100559191C (en) 2009-11-11
KR20070120427A (en) 2007-12-24
CN101093233A (en) 2007-12-26
KR100868141B1 (en) 2008-11-10

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