FIELD: electric welding processes and equipment, namely regulated power source for manual electric arc welding, possibly in workshops, in domestic or industrial condition.
SUBSTANCE: inlet of bridge type diode rectifier is connected with one section of secondary winding of transformer. Two gangs of capacitors are connected in parallel with diodes of one arm of bridge type rectifier and with one outlet of said section. Smoothing choke with split windings is connected between arms of bridge type rectifier. Secondary winding of transformer includes additional booster section to which two thyristors are connected. Said thyristors are controlled by means of pulse-phase control system. The last includes double-threshold comparator whose inlet is connected with outlet of power source and whose outlet is connected with inlet for interlocking pulses of pulse-phase control system.
EFFECT: possibility for proving smooth regulation of welding electric current in desired range.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ARC WELDING POWER SOURCE | 0 |
|
SU1738521A1 |
| METHOD FOR ELECTRIC ARC WELDING WITH SHORT CIRCUITING OF ARC GAP AND POWER SOURCE FOR PERFORMING THE SAME | 2003 |
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SU1324789A1 |
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|
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|
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| SINGLE-PHASE RECTIFIER FOR ARC WELDING | 2010 |
|
RU2441734C1 |
