Back to results
US 9,925,613 B2Granted
Inverter-based generator and welding system
AssigneeHobart Brothers Company
InventorsScott Ryan Rozmarynowski, Darrell Lee Sickels
Life of this patent
Estimating the term…
Abstract
A system includes an engine configured to drive a generator to produce a first power output, and a first inverter communicatively coupled to the generator. The first inverter is configured to convert the first power output into a second power output. The system includes a second inverter communicatively coupled to the generator. The second inverter is configured to convert the first power output into a third power output. The third power output includes a welding power output.
Claims18
A system, comprising:
- a portable, self-contained power supply unit configured to be hand-carried by a single operator, wherein the portable, self-contained power supply unit comprises:
- an engine configured to drive a generator to produce a first power output, wherein the engine comprises a power rating of approximately 10 horsepower (hp) or less;
- a direct current (DC) bus comprising a rectifier, wherein the DC bus is configured to provide DC power from the first power output;
- a first inverter electrically coupled between the DC bus and auxiliary output circuitry, wherein the first inverter is configured to convert the first power output into a second power output, wherein the second power output comprises an auxiliary power output;
- and
- a second inverter electrically coupled between the DC bus and welding output circuitry, wherein the second inverter is configured to convert the first power output into a third power output, wherein the third power output comprises a welding power output.
3 more elements
A welding power supply unit, comprising:
- a portable, self-contained welding power supply unit configured to be hand-carried by a single operator, wherein the portable, self-contained welding power supply unit comprises:
- an engine configured to drive a generator to produce a first power output, wherein the engine comprises a power rating of approximately 10 horsepower (hp) or less and the generator comprises a power rating of approximately 3500 watts (W) or less;
- a direct current (DC) bus comprising a rectifier, wherein the DC bus is configured to provide DC power from the first power output;
- a first inverter electrically coupled between the DC bus and auxiliary output circuitry, wherein the first inverter is configured to convert the first power output into an auxiliary power output;
- a second inverter electrically coupled between the DC bus and welding output circuitry, wherein the second inverter is configured to convert the first power output into a welding power output;
- and
- a welding torch detachably coupled to the welding power supply unit and configured to receive the welding power output.
4 more elements
A welding system, comprising:
- an enclosure configured to be hand-carried by a single operator, comprising:
- an engine configured to drive a generator to produce a first power output, wherein the generator comprises a power rating of approximately 3500 watts (W) or less;
- a direct current (DC) bus comprising a rectifier, wherein the DC bus is configured to provide DC power from the first power output;
- and
- a plurality of inverters electrically coupled to the DC bus, wherein a first inverter of the plurality of inverters is coupled between the DC bus and auxiliary output circuitry and a second inverter of the plurality of inverters is coupled between the DC bus and welding output circuitry, wherein the plurality of inverters is configured to convert the first power output into a second power output and a third power output substantially concurrently, and wherein the third power output comprises a welding power output.
2 more elements
Dependencies are inferred from the claim text.