JPS55126377A - Current detecting circuit for arc welding machine - Google Patents

Current detecting circuit for arc welding machine

Info

Publication number
JPS55126377A
JPS55126377A JP3324879A JP3324879A JPS55126377A JP S55126377 A JPS55126377 A JP S55126377A JP 3324879 A JP3324879 A JP 3324879A JP 3324879 A JP3324879 A JP 3324879A JP S55126377 A JPS55126377 A JP S55126377A
Authority
JP
Japan
Prior art keywords
reactor
current detecting
detecting circuit
circuit
welding machine
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
JP3324879A
Other languages
Japanese (ja)
Other versions
JPS6252666B2 (en
Inventor
Yoshio Wakatsuki
Tsuneo Shinada
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.)
Via Mechanics Ltd
Original Assignee
Hitachi Seiko 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 Hitachi Seiko Ltd filed Critical Hitachi Seiko Ltd
Priority to JP3324879A priority Critical patent/JPS55126377A/en
Publication of JPS55126377A publication Critical patent/JPS55126377A/en
Publication of JPS6252666B2 publication Critical patent/JPS6252666B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Arc Welding Control (AREA)

Abstract

PURPOSE: To form the current detecting circuit of an extremely short delay time without requiring any current detecting winding for in-phase transformer by disconnecting DC reactor or DC reactor and in-phase transfomer and the output side of the voltage detecting circuit, in the power supply circuit of a semi-automatic arc welding machine and detecting the welding current by using a light actuating element.
CONSTITUTION: The voltage across a DC reactor 5 is rectified with a diode bridge 8 and the pulsation flow is smoothed by resistances 9W11 and capacitor 12. A light actuating element 20 is installed to this rectifying output circuit and is so constituted that the rectified output voltage is applied to its diode D and that a photo transistor Tr is ON-controlled. The collector and emitter terminals a, b of the transistor Tr are connected to the control circuit of the semi-automatic arc welding machine. The signal as the signal electrically and magnetically disconnected from the DC reactor 5 may be fetched out between the terminals a, b and may be used as the welding current detecting circuit.
COPYRIGHT: (C)1980,JPO&Japio
JP3324879A 1979-03-23 1979-03-23 Current detecting circuit for arc welding machine Granted JPS55126377A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3324879A JPS55126377A (en) 1979-03-23 1979-03-23 Current detecting circuit for arc welding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3324879A JPS55126377A (en) 1979-03-23 1979-03-23 Current detecting circuit for arc welding machine

Publications (2)

Publication Number Publication Date
JPS55126377A true JPS55126377A (en) 1980-09-30
JPS6252666B2 JPS6252666B2 (en) 1987-11-06

Family

ID=12381177

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3324879A Granted JPS55126377A (en) 1979-03-23 1979-03-23 Current detecting circuit for arc welding machine

Country Status (1)

Country Link
JP (1) JPS55126377A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS597478A (en) * 1982-07-06 1984-01-14 Mitsubishi Electric Corp Welding device of cap pin of fluorescent lamp
JPS6390367A (en) * 1986-10-03 1988-04-21 Ohara Kinzoku Kogyo Kk Electric current detector for electric conductor for welding machine
US9423185B2 (en) 2009-11-04 2016-08-23 Toshiba Mitsubishi-Electric Industrial Systems Corporation Heat transfer device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5172942A (en) * 1974-11-13 1976-06-24 Lincoln Electric Co
JPS544234U (en) * 1977-06-10 1979-01-12

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4028550A (en) * 1975-12-22 1977-06-07 E. I. Du Pont De Nemours And Company X-ray screens

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5172942A (en) * 1974-11-13 1976-06-24 Lincoln Electric Co
JPS544234U (en) * 1977-06-10 1979-01-12

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS597478A (en) * 1982-07-06 1984-01-14 Mitsubishi Electric Corp Welding device of cap pin of fluorescent lamp
JPS6390367A (en) * 1986-10-03 1988-04-21 Ohara Kinzoku Kogyo Kk Electric current detector for electric conductor for welding machine
JPH0320307B2 (en) * 1986-10-03 1991-03-19 Ohara Kk
US9423185B2 (en) 2009-11-04 2016-08-23 Toshiba Mitsubishi-Electric Industrial Systems Corporation Heat transfer device

Also Published As

Publication number Publication date
JPS6252666B2 (en) 1987-11-06

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