JPS5666377A - Arc welding machine - Google Patents

Arc welding machine

Info

Publication number
JPS5666377A
JPS5666377A JP14169279A JP14169279A JPS5666377A JP S5666377 A JPS5666377 A JP S5666377A JP 14169279 A JP14169279 A JP 14169279A JP 14169279 A JP14169279 A JP 14169279A JP S5666377 A JPS5666377 A JP S5666377A
Authority
JP
Japan
Prior art keywords
power source
electric power
current
output
voltage
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
JP14169279A
Other languages
Japanese (ja)
Inventor
Hideo Ishii
Kunio Kano
Haruo Moriguchi
Yukio Harada
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.)
Sansha Electric Manufacturing Co Ltd
Original Assignee
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 Sansha Electric Manufacturing Co Ltd filed Critical Sansha Electric Manufacturing Co Ltd
Priority to JP14169279A priority Critical patent/JPS5666377A/en
Publication of JPS5666377A publication Critical patent/JPS5666377A/en
Pending legal-status Critical Current

Links

Landscapes

  • Arc Welding Control (AREA)

Abstract

PURPOSE: To prevent the breakage of a torch electrode and anomalous welding of base metals by so controlling the phases of the output current that they become constant with each cycle of positive and negative of an AC electric power source.
CONSTITUTION: The detection signal obtained by detecting the welding current in a current transformer CT then converting the same to a voltage in a current-voltage converting resistance R1 is insulated by an insulation transformer T2 and the voltage induced in its secondary winding is screened by each half cycle of positive and negative of the AC electric power source by diodes D1, D2. Both signals are then inputted via detecting resistances R6, R7 to comparing amplifiers A1, A2. On the other hand, the reference voltage of a reference electric power source E is held inputted to both comparing amplifiers A1, A2. A thyristor TY1 is phase-controlled by the firing signal of a phase shifter PC by the output signal of the amplifier A1 and a thyristor Y2 is phase-controlled by the firing signal of the phase shifter PC by the output signal of the amplifier A2. The output of a output control part 2 is subjected to constant current controlling by every half cycle of positive and negative of the AC electric power source by these two feedback control systems.
COPYRIGHT: (C)1981,JPO&Japio
JP14169279A 1979-10-31 1979-10-31 Arc welding machine Pending JPS5666377A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14169279A JPS5666377A (en) 1979-10-31 1979-10-31 Arc welding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14169279A JPS5666377A (en) 1979-10-31 1979-10-31 Arc welding machine

Publications (1)

Publication Number Publication Date
JPS5666377A true JPS5666377A (en) 1981-06-04

Family

ID=15297988

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14169279A Pending JPS5666377A (en) 1979-10-31 1979-10-31 Arc welding machine

Country Status (1)

Country Link
JP (1) JPS5666377A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007007673A (en) * 2005-06-28 2007-01-18 Nissan Motor Co Ltd Cable abnormality monitoring system and method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007007673A (en) * 2005-06-28 2007-01-18 Nissan Motor Co Ltd Cable abnormality monitoring system and method thereof
JP4585929B2 (en) * 2005-06-28 2010-11-24 日産自動車株式会社 Cable abnormality monitoring apparatus and method

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