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:
Jun. 15, 2021
Filed:
May. 25, 2018
Applicant:
Illinois Tool Works Inc., Glenview, IL (US);
Inventors:
James Donald Borowski, Greenville, WI (US);
Travis Orvedahl, Neenah, WI (US);
Bernard J. Vogel, Troy, OH (US);
Assignee:
ILLINOIS TOOL WORKS, Glenview, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 9/10 (2006.01); H02M 7/48 (2007.01); H02M 7/487 (2007.01); H02M 1/08 (2006.01); H02M 7/5395 (2006.01); H02J 7/00 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 7/487 (2013.01); B23K 9/1043 (2013.01); H02M 1/08 (2013.01); H02M 7/5395 (2013.01); H02J 7/0068 (2013.01); H02M 2001/0009 (2013.01);
Abstract
A welding-type power system that provides balanced split phase AC power or three phase AC power from a DC power bus that includes a power supply, a DC power bus, inverters, and a balancing circuit. The inverters and the balancing circuit are configured in a half-bridge topology. The balancing circuit is configured to balance a neutral midpoint of the DC power bus. The balanced split phase AC power or three phase AC power is accomplished by actively controlling the neutral midpoint of the DC power bus via the balancing circuit.