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:
Aug. 04, 2020
Filed:
Dec. 21, 2016
Illinois Tool Works Inc., Glenview, IL (US);
Anthony Van Bergen Salsich, Appleton, WI (US);
Illinois Tool Works Inc., Glenview, IL (US);
Abstract
A welding or cutting device includes a first transistor coupled between a first node and a second node. The first transistor controls current and voltage provided to an inductor during a welding or cutting operation. The welding or cutting device also includes a first diode coupled in series with the first transistor between the second node and a third node, and a second diode coupled in parallel with the first transistor and the first diode between the first node and a fourth node. Additionally, the welding or cutting device includes a second transistor coupled in series with the second diode and in parallel with the first transistor and the first diode between the fourth node and the third node. The second transistor controls a voltage applied to a transistor during a freewheeling operation of the inductor. Further, the welding or cutting device includes the inductor arranged between the second node and the fourth node and coupled to a first terminal of an output and a second terminal of the output coupled to the fourth node. Moreover, the welding or cutting device includes a bus capacitor coupled in parallel with the first transistor and the first diode between the third node and the first node.