JPS555184A - Arc welder - Google Patents
Arc welderInfo
- Publication number
- JPS555184A JPS555184A JP7935078A JP7935078A JPS555184A JP S555184 A JPS555184 A JP S555184A JP 7935078 A JP7935078 A JP 7935078A JP 7935078 A JP7935078 A JP 7935078A JP S555184 A JPS555184 A JP S555184A
- Authority
- JP
- Japan
- Prior art keywords
- scr
- terminal
- reactor
- current
- arc
- 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
Abstract
PURPOSE: To enable DC of small ripple rates to be obtained with a simple constitution by respectively parallel connecting the two SCRs and two reactors which are series-connected on their same polarity side to both side terminals of the secondary winding of a transformer and connecting welding load to the connecting point of the SCR and reactor.
CONSTITUTION: When output terminal (a) is plus, terminal (b) is minus and an SCR 2b is conducting, then current flows through terminal (a) → reactor 6a → base metal 5 → arc 4 → welding torch 3 → SCR 2b → terminal (b). As the current begins to decrease, an induced voltage which forward biases the SCR 2a is generated through the arc 4 in the reactor 6a and tries to continue to flow the current in the same direction even after the polarity inversion of the terminals (a), (b). Here, when a gate signal enters, the SCR 2a is forward biased and therefore goes ON and the SCR 2b goes OFF. At this time, the current abruptly inverts its polality, thus the DC of small ripple rates may be obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7935078A JPS555184A (en) | 1978-06-29 | 1978-06-29 | Arc welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7935078A JPS555184A (en) | 1978-06-29 | 1978-06-29 | Arc welder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS555184A true JPS555184A (en) | 1980-01-16 |
Family
ID=13687444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7935078A Pending JPS555184A (en) | 1978-06-29 | 1978-06-29 | Arc welder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS555184A (en) |
-
1978
- 1978-06-29 JP JP7935078A patent/JPS555184A/en active Pending
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