JPS57171577A - Electric power source device for dc welding - Google Patents

Electric power source device for dc welding

Info

Publication number
JPS57171577A
JPS57171577A JP5601381A JP5601381A JPS57171577A JP S57171577 A JPS57171577 A JP S57171577A JP 5601381 A JP5601381 A JP 5601381A JP 5601381 A JP5601381 A JP 5601381A JP S57171577 A JPS57171577 A JP S57171577A
Authority
JP
Japan
Prior art keywords
time
value
control
attains
potential
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.)
Pending
Application number
JP5601381A
Other languages
Japanese (ja)
Inventor
Tetsuo Hayashi
Saburo Okumura
Kazuhisa Wakiya
Hideo Ishii
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.)
SANSHIYA DENKI SEISAKUSHO KK
Sansha Electric Manufacturing Co Ltd
Original Assignee
SANSHIYA DENKI SEISAKUSHO KK
Sansha Electric Manufacturing 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 SANSHIYA DENKI SEISAKUSHO KK, Sansha Electric Manufacturing Co Ltd filed Critical SANSHIYA DENKI SEISAKUSHO KK
Priority to JP5601381A priority Critical patent/JPS57171577A/en
Publication of JPS57171577A publication Critical patent/JPS57171577A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B23K9/073—Stabilising the arc

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding Control (AREA)

Abstract

PURPOSE:To obtain constant current and constant voltage characteristics in a small current and low voltage area by providing a changing means for an off time fixing value and changing the off time fixing value as an on time reference set value is made smaller. CONSTITUTION:The output terminal of a comparing amplifier 10 is connected to the base of a transistor 12, and the collector current thereof is controlled by the potential thereof. A series circuit of a diode 13 and a capacitor 14 is connected between the collector and earth of the TR12 to for a charging line P; at the same time, a discharging line Q which is a changing means for an off time fixing value is formed via a timer IC17. An IC of the characteristics that it is set when the potential of the input terminal A attains 1/3VC and is reset when it attains 2/3VC is used for the IC17. Further, an output setting volume 11 and an off time setting volume control 16 are interlocked, so that when the range of the reference on time is set small with the control 11 the resistance value of the control 16 rises to increase the off time range automatically.
JP5601381A 1981-04-13 1981-04-13 Electric power source device for dc welding Pending JPS57171577A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5601381A JPS57171577A (en) 1981-04-13 1981-04-13 Electric power source device for dc welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5601381A JPS57171577A (en) 1981-04-13 1981-04-13 Electric power source device for dc welding

Publications (1)

Publication Number Publication Date
JPS57171577A true JPS57171577A (en) 1982-10-22

Family

ID=13015168

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5601381A Pending JPS57171577A (en) 1981-04-13 1981-04-13 Electric power source device for dc welding

Country Status (1)

Country Link
JP (1) JPS57171577A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61135482A (en) * 1984-12-06 1986-06-23 Matsushita Electric Ind Co Ltd Dc arc welder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61135482A (en) * 1984-12-06 1986-06-23 Matsushita Electric Ind Co Ltd Dc arc welder
JPH0622758B2 (en) * 1984-12-06 1994-03-30 松下電器産業株式会社 DC arc welding machine

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