JPS55126377A - Current detecting circuit for arc welding machine - Google Patents
Current detecting circuit for arc welding machineInfo
- 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
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
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)
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)
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)
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 |
-
1979
- 1979-03-23 JP JP3324879A patent/JPS55126377A/en active Granted
Patent Citations (2)
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)
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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