JPS57115974A - Welding machine - Google Patents
Welding machineInfo
- Publication number
- JPS57115974A JPS57115974A JP90981A JP90981A JPS57115974A JP S57115974 A JPS57115974 A JP S57115974A JP 90981 A JP90981 A JP 90981A JP 90981 A JP90981 A JP 90981A JP S57115974 A JPS57115974 A JP S57115974A
- Authority
- JP
- Japan
- Prior art keywords
- output
- voltage
- winding
- transformer
- converted
- 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
Links
- 238000003466 welding Methods 0.000 title abstract 2
- 238000004804 winding Methods 0.000 abstract 5
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000009499 grossing Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
Landscapes
- Arc Welding Control (AREA)
Abstract
PURPOSE: To stabilize output voltage and current characteristics without using any DC insulating device by providing an auxiliary winding to the secondary winding of a transformer, and converting the output thereof to DC.
CONSTITUTION: An auxiliary winding 1T is wound to a transformer 1 in tight coupling to a secondary winding 1S with sufficient insulation in terms of DC, and the output of the winding 1T is converted to DC by a rectifying and smoothing circuit 13. This DC is applied together with the reference voltage of a reference voltage power source to a differential amplifier 8, and an oscillator 9 is connected directly to a driving circuit 11. The voltage converted to DC by the circuit 13 is afloat with respect to the welding voltage of an output terminals 5 and therefore its reference potential is taken at the emitter potential of semiconductor switching elements 3A, 3B, whereby a DC insulating device is omitted.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP90981A JPS57115974A (en) | 1981-01-06 | 1981-01-06 | Welding machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP90981A JPS57115974A (en) | 1981-01-06 | 1981-01-06 | Welding machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57115974A true JPS57115974A (en) | 1982-07-19 |
Family
ID=11486797
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP90981A Pending JPS57115974A (en) | 1981-01-06 | 1981-01-06 | Welding machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57115974A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60136873U (en) * | 1984-02-20 | 1985-09-11 | 株式会社 三社電機製作所 | Welding/cutting power supply device |
US5052897A (en) * | 1989-10-31 | 1991-10-01 | Kabushiki Kaisha Toshiba | Compressor and method of detecting quantity of mixture of coolant and lubricant in the compressor |
JPH04115244U (en) * | 1991-03-11 | 1992-10-13 | 株式会社ガスター | combustion device |
WO2012160752A1 (en) * | 2011-05-24 | 2012-11-29 | パナソニック株式会社 | Transformer and arc discharge processing device |
-
1981
- 1981-01-06 JP JP90981A patent/JPS57115974A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60136873U (en) * | 1984-02-20 | 1985-09-11 | 株式会社 三社電機製作所 | Welding/cutting power supply device |
JPH0315259Y2 (en) * | 1984-02-20 | 1991-04-03 | ||
US5052897A (en) * | 1989-10-31 | 1991-10-01 | Kabushiki Kaisha Toshiba | Compressor and method of detecting quantity of mixture of coolant and lubricant in the compressor |
JPH04115244U (en) * | 1991-03-11 | 1992-10-13 | 株式会社ガスター | combustion device |
WO2012160752A1 (en) * | 2011-05-24 | 2012-11-29 | パナソニック株式会社 | Transformer and arc discharge processing device |
JP5182458B2 (en) * | 2011-05-24 | 2013-04-17 | パナソニック株式会社 | Transformer and arc electrical discharge machine |
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