JPS574379A - Power source device for welding - Google Patents
Power source device for weldingInfo
- Publication number
- JPS574379A JPS574379A JP7818380A JP7818380A JPS574379A JP S574379 A JPS574379 A JP S574379A JP 7818380 A JP7818380 A JP 7818380A JP 7818380 A JP7818380 A JP 7818380A JP S574379 A JPS574379 A JP S574379A
- Authority
- JP
- Japan
- Prior art keywords
- current
- pulse
- goes
- transistor
- transistors
- 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 obtain the stable arc without damaging transistors by using a switching element which conducts during the pulse time of a required pulse frequency or the time until the peak current of required pulses is attained.
CONSTITUTION: When a transistor Q2 is turned off by the signal from a pulse generator 16 transistors Q3, Q4 go on, and a switching transistor 9 goes on. Therefore, the pulse current of a high peak current value flows in the TR9 by a pulse generator 16 while the TRQ2 is off, ad this current is supplied between an electrode 6 and base metals 7. When overcurrent flows in the TR9, it is detected by a current detector 12, a comparing amplifier 14 produces an output, and a transistor Q1 goes on. The TRs Q3, Q4 go on, the TR9 goes on, and the output current of the TR9 is cut off.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7818380A JPS574379A (en) | 1980-06-10 | 1980-06-10 | Power source device for welding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7818380A JPS574379A (en) | 1980-06-10 | 1980-06-10 | Power source device for welding |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS574379A true JPS574379A (en) | 1982-01-09 |
JPS6253270B2 JPS6253270B2 (en) | 1987-11-10 |
Family
ID=13654851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7818380A Granted JPS574379A (en) | 1980-06-10 | 1980-06-10 | Power source device for welding |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS574379A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4928010A (en) * | 1986-11-28 | 1990-05-22 | Nippon Telegraph And Telephone Corp. | Observing a surface using a charged particle beam |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5440500A (en) * | 1977-09-05 | 1979-03-29 | Kato Kouji | Airfield |
-
1980
- 1980-06-10 JP JP7818380A patent/JPS574379A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5440500A (en) * | 1977-09-05 | 1979-03-29 | Kato Kouji | Airfield |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4928010A (en) * | 1986-11-28 | 1990-05-22 | Nippon Telegraph And Telephone Corp. | Observing a surface using a charged particle beam |
Also Published As
Publication number | Publication date |
---|---|
JPS6253270B2 (en) | 1987-11-10 |
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