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. 11, 2005
Filed:
Sep. 28, 2001
Frode Kleveland, Stavanger, NO;
Frode Kleveland, Stavanger, NO;
EFD Induction a.s., Skien, NO;
Abstract
A new control strategy for IGBTs when used in high frequency (75 kHz-500 kHz) high power (10 kW-5 MW) inverters with series resonant load, a topology commonly used for induction heating. The strategy changes the IGBT strain elements into a total stress picture that fits the IGBP's behaviour and internal nature better. This makes the IGBT operate much more efficient, thus increasing the maximum output power from the inverter significantly compared to a standard control scheme. This makes the IGBT based inverter a much cheaper alternative than a MOSFET inverter, which has been state of the art for this application.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile