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:
Oct. 11, 2016
Filed:
Aug. 02, 2012
Eric Hueckel, Emmendingen, DE;
Stefan Koch, Kappelrodeck, DE;
Florian Lieblang, Buehl, DE;
Stephan Binhack, Karlsruhe, DE;
Tobias Pristl, Fuldabrueck, DE;
Michael Zeller, Rheinmuenster, DE;
Stephan Mueller, Buehl, DE;
Jian Tian, Buehl, DE;
Ralf Bochat, Waldbronn, DE;
Ralf-peter Bergmann, Sasbach, DE;
Eric Hueckel, Emmendingen, DE;
Stefan Koch, Kappelrodeck, DE;
Florian Lieblang, Buehl, DE;
Stephan Binhack, Karlsruhe, DE;
Tobias Pristl, Fuldabrueck, DE;
Michael Zeller, Rheinmuenster, DE;
Stephan Mueller, Buehl, DE;
Jian Tian, Buehl, DE;
Ralf Bochat, Waldbronn, DE;
Ralf-Peter Bergmann, Sasbach, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to an activation apparatus () for a galvanically decoupled direct voltage converter having a synchronous rectifier, comprising a signal generating device (), which is designed to generate control signals () for switch devices of the synchronous rectifier and a reference current signal (), a first comparator device (), which is coupled to the signal generating device (), and which is designed to detect the secondary-side output current (Jo) of the synchronous rectifier, compare it to the reference current signal () and generate a current control signal in dependence on the comparison, and a pulse width modulation device (), which is coupled to the signal generating device () and the first comparator device () and which is designed to generate pulse width modulated activation signals () for the switch devices of the synchronous rectifier on the basis of the control signals () and the current control signal, wherein the signal generating device () is furthermore designed to reduce the reference current signal () within a first predetermined timespan to a predetermined reference current threshold.