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:
Feb. 20, 2007
Filed:
May. 10, 2005
Heinz Novak, Graz, AT;
Heinz Novak, Graz, AT;
Infineon Technologies AG, Munich, DE;
Abstract
When a switch () that is in series with the inductive load () is turned on, the rise behavior of the current (I) is first of all detected until a nominal value (Iref) is reached, and a pulse duty factor (Te/Ta) of a pulse width modulator device () is determined from said rise behavior. Immediately after the nominal value (Iref) of the current (I) has been reached, the switch () is driven in a conventional manner by the pulse width modulator device (), using the pulse duty factor (Te/Ta) that has been determined, in order to finely adjust the pulse duty factor (Te/Ta). The invention largely avoids overshoots during control and the adjustment time is thus considerably shorter than in conventional drive circuits.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile