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CA2193338A1 - Switchable power supply with electronically controlled output curve and adaptive hot start - Google Patents

Switchable power supply with electronically controlled output curve and adaptive hot start

Info

Publication number
CA2193338A1
CA2193338A1 CA002193338A CA2193338A CA2193338A1 CA 2193338 A1 CA2193338 A1 CA 2193338A1 CA 002193338 A CA002193338 A CA 002193338A CA 2193338 A CA2193338 A CA 2193338A CA 2193338 A1 CA2193338 A1 CA 2193338A1
Authority
CA
Canada
Prior art keywords
switchable power
power supply
hot start
welding
provides
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
CA002193338A
Other languages
French (fr)
Other versions
CA2193338C (en
Inventor
Steven J. Geissler
Todd G. Batzler
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 CA2193338A1 publication Critical patent/CA2193338A1/en
Application granted granted Critical
Publication of CA2193338C publication Critical patent/CA2193338C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/02—Regulating electric characteristics of arcs
    • G05F1/08—Regulating electric characteristics of arcs by means of semiconductor devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/06—Arrangements or circuits for starting the arc, e.g. by generating ignition voltage, or for stabilising the arc
    • B23K9/067—Starting the arc
    • B23K9/0672—Starting the arc without direct contact between electrodes
    • 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
    • H02M3/337—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 in push-pull configuration
    • H02M3/3376—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 in push-pull configuration with automatic control of output voltage or current
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Arc Welding Control (AREA)

Abstract

A welding power supply that includes a switchable power source, including at least one switch and at least one capacitor is disclosed. The converter includes a switching circuit including an enable input. A voltage sensing circuit that determines the earliest safe switching time of the switch is provided. The safe switching time is the time that will prevent a peak voltage on the capacitor from exceeding a predetermined threshold for a next cycle of the converter. The voltage sensing circuit provides an enable signal to the enable input when the earliest switching time has passed, to enable the switching circuit. A pair of welding output terminals connected to the switchable power source receives the output. A controller including a curve shaper, for providing a constant current output in the welding range is also disclosed. The controller also provides an adaptive hot start that provides varying amounts of energy in response to the welders skill.
CA002193338A 1996-01-11 1996-12-18 Switchable power supply with electronically controlled output curve and adaptive hot start Expired - Fee Related CA2193338C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US58441296A 1996-01-11 1996-01-11
US08/584,412 1996-01-11

Publications (2)

Publication Number Publication Date
CA2193338A1 true CA2193338A1 (en) 1997-07-12
CA2193338C CA2193338C (en) 2001-03-13

Family

ID=24337220

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002193338A Expired - Fee Related CA2193338C (en) 1996-01-11 1996-12-18 Switchable power supply with electronically controlled output curve and adaptive hot start

Country Status (3)

Country Link
CA (1) CA2193338C (en)
GB (1) GB2309130B (en)
IE (1) IE970018A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104407658A (en) * 2014-10-17 2015-03-11 无锡英普林纳米科技有限公司 Micro-electrical arc welded constant-current control circuit
WO2016134319A1 (en) 2015-02-19 2016-08-25 Enphase Energy, Inc. Method and apparatus for time-domain droop control with integrated phasor current control

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1210099A (en) * 1967-12-20 1970-10-28 Nat Res Dev Improvements relating to welding power sources
US3904846A (en) * 1973-12-19 1975-09-09 Miller Electric Mfg Adaptive control for arc welding
FR2503604B1 (en) * 1981-04-10 1986-03-14 Mitsubishi Electric Corp SHORT CIRCUIT ARC WELDER
US4503316A (en) * 1981-08-13 1985-03-05 Kabushiki Kaisha Kobe Seiko Sho DC Welding power supply system
US4560857A (en) * 1983-02-21 1985-12-24 Mitsubishi Denki Kabushiki Kaisha Consumable electrode type arc welding apparatus having a selectable start current
DE4023155C2 (en) * 1989-07-21 1997-02-06 Hitachi Seiko Kk AC inert gas arc welding process and consumable electrode device

Also Published As

Publication number Publication date
GB9700159D0 (en) 1997-02-26
GB2309130A (en) 1997-07-16
IE970018A1 (en) 1997-07-16
CA2193338C (en) 2001-03-13
GB2309130B (en) 1999-08-25

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20141218