Power supply source for arc welding
US3944780A · kind A · utility
Inventors
Key dates
| Filing date | Jun 11, 1973 |
| Grant date | Mar 16, 1976 |
| Priority date | — |
| Expiry date | Jun 11, 1993 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/091
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A power supply source is provided for use in apparatus for the welding of workpieces. It contains several parallel - connected charge-discharge circuits connected to electrodes via a choke or resistor, each of these circuits consists of storage capacitors, elements for the switching-over of the capacitor discharge and isolating diodes with common-polarity electrodes of said diodes being interconnected and connected to the electric network via a thyristor. Such arrangement allows generating current pulses of a complex shape, including nearly rectangular shape, and provides for controlling welding thermal cycles over a wide range. The arrangement is also of a small size and weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.