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. 07, 2003
Filed:
Dec. 14, 2000
Brian A. Schwartz, Appleton, WI (US);
Albert J. DeCoster, Kaukauna, WI (US);
Jon O. Reynolds, Appleton, WI (US);
Illinois Tool Works, Glenview, IL (US);
Abstract
A power circuit for a welding power supply includes a rectifier circuit and a control circuit. The rectifier circuit includes a plurality of switches (e.g., silicon-controlled rectifiers). The control circuit is configured to provide a first control signal to a first switch at a predetermined firing angle to provide welding power through the first switch. The control circuit is configured to provide a second control signal to a second switch to allow freewheeling current to flow through the second switch.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile