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:
May. 31, 2016
Filed:
Aug. 12, 2014
Dora S.p.a., Aosta, IT;
Stmicroelectronics S.r.l., Agrate Brianza, IT;
Alberto Iorio, Aosta, IT;
Giuseppe Scappatura, Aosta, IT;
Alberto Bianco, Gressan, IT;
Claudio Adragna, Monza, IT;
Silvio De Simone, Busto Arsizio, IT;
Maurizio Foresta, Aosta, IT;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
A control device for a transistor of a switching converter rectifier generates a control signal of the transistor and includes a circuit to measure the conduction time of the body diode of the transistor cycle by cycle. When the conduction time is greater than a first threshold, the off time instant of the transistor is delayed by a first quantity in the next cycles, until the conduction time is less than the first threshold and greater than a second threshold. When the conduction time is between the first and second thresholds, the off time instant is delayed by a fixed second quantity in the next cycles until the conduction time is lower than the second threshold, with the second quantity less than the first quantity. When the conduction time is lower than the second threshold, the off time instant is advanced by the second quantity in the next cycle.