CA2242442A1 - Method and apparatus for producing power for an induction heating system - Google Patents

Method and apparatus for producing power for an induction heating system

Info

Publication number
CA2242442A1
CA2242442A1 CA002242442A CA2242442A CA2242442A1 CA 2242442 A1 CA2242442 A1 CA 2242442A1 CA 002242442 A CA002242442 A CA 002242442A CA 2242442 A CA2242442 A CA 2242442A CA 2242442 A1 CA2242442 A1 CA 2242442A1
Authority
CA
Canada
Prior art keywords
switch
output
induction heating
power
heating system
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.)
Granted
Application number
CA002242442A
Other languages
French (fr)
Other versions
CA2242442C (en
Inventor
Mark Ulrich
Andre Lanouette
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.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
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 Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Publication of CA2242442A1 publication Critical patent/CA2242442A1/en
Application granted granted Critical
Publication of CA2242442C publication Critical patent/CA2242442C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H05B6/06—Control, e.g. of temperature, of power
    • 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
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/08—Control, e.g. of temperature, of power using compensating or balancing arrangements

Abstract

An induction heating power supply is disclosed.
It includes a power circuit having at least one switch and a power output. The output circuit includes an induction head. The output circuit is coupled to the power output. A
controller has at least one feedback input connected to the output circuit, and has a control output connected to the switch. The controller predicts the switch zero crossing and preferably soft switches the switch. Current feedback is obtained from a coil placed between the bus bars. Each bus bar is comprised of multiple plates to increase current capacity.
CA002242442A 1997-07-16 1998-07-07 Method and apparatus for producing power for an induction heating system Expired - Fee Related CA2242442C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/893,354 US6124581A (en) 1997-07-16 1997-07-16 Method and apparatus for producing power for an induction heating source
US08/893,354 1997-07-16

Publications (2)

Publication Number Publication Date
CA2242442A1 true CA2242442A1 (en) 1999-01-16
CA2242442C CA2242442C (en) 2002-01-08

Family

ID=25401423

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002242442A Expired - Fee Related CA2242442C (en) 1997-07-16 1998-07-07 Method and apparatus for producing power for an induction heating system

Country Status (2)

Country Link
US (4) US6124581A (en)
CA (1) CA2242442C (en)

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Also Published As

Publication number Publication date
US6683286B2 (en) 2004-01-27
US6316755B1 (en) 2001-11-13
US20020060218A1 (en) 2002-05-23
US6124581A (en) 2000-09-26
CA2242442C (en) 2002-01-08
US20020036200A1 (en) 2002-03-28

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