Welding power supplies, wire feeders, and systems to measure a weld circuit resistance via communications over the weld circuit
US11027355B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2017 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Apr 13, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/1062
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Welding power supplies, wire feeders, and systems to measure a weld circuit resistance via communications over the weld circuit are disclosed. An example welding-type power supply includes: a power converter configured to: convert input power to output a current pulse via a weld circuit; and convert the input power to output welding-type power via the weld circuit; a voltage monitor configured to measure a power supply output voltage of the current pulse; a receiver circuit configured to receive, via the weld circuit, a communication comprising a second voltage measurement; and a controller configured to: determine a resistance of a portion of the weld circuit based on the power supply output voltage measurement, the second voltage measurement, and a weld circuit current measurement; and control the power converter to convert the input power to output the welding-type power based on a weld voltage setpoint and the impedance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.