The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 06, 2026
Filed:
Mar. 07, 2022
Esab Ab, Gothenburg, SE;
David Juliusson, Gothenburg, SE;
Magnus Persson, Kyrkesund, SE;
ESAB AB, Gothenburg, SE;
Abstract
A method is performed in a welding or cutting system having a power inverter to generate an alternating current (AC) signal responsive to pulse width modulation (PWM) that is applied to the power inverter to control the AC signal. The method includes: upon detecting a power increase event in the welding or cutting system that necessitates an increase in the AC signal, controlling the PWM to cause the power inverter to increase the AC signal over multiple PWM cycles by: generating a first PWM cycle having a first period and a first on-time corresponding to a first duty cycle of the first PWM cycle that is greater than 50%; and generating a second PWM cycle having a second period that is greater than the first period and a second on-time corresponding to a second duty cycle of the second PWM cycle that is greater than 50%.