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. 25, 2022
Filed:
Nov. 10, 2021
Stmicroelectronics S.r.l., Agrate Brianza, IT;
Stmicroelectronics Application Gmbh, Ascheim-Dornach, DE;
Stmicroelectronics Design and Application S.r.o., Prague, CZ;
Donato Tagliavia, Acireale, IT;
Vincenzo Polisi, Catania, IT;
Calogero Andrea Trecarichi, Gela, IT;
Francesco Nino Mammoliti, Riposto, IT;
Jochen Barthel, Schechen, DE;
Ludek Beran, Strancice, CZ;
STMicroelectronics S.r.l., Agrate Brianza, IT;
STMicroelectronics Application GmbH, Aschheim-Dornach, DE;
STMicroelectronics Design and Application S.R.O., Prague, CZ;
Abstract
A control circuit for a voltage source generates a reference signal for a voltage source, wherein the reference signal indicates a requested output voltage to be generated by the voltage source. A digital feed-forward control circuit computes a digital feed-forward regulation value indicative of a requested output voltage by determining a maximum voltage drop at strings of solid-state light sources. A digital feed-back control circuit determines a minimum voltage drop for current regulators/limiters for the strings and determines a digital feed-back correction value as a function of the minimum voltage drop. The control circuit then sets the reference signal after a start-up as a function of the digital feed-forward regulation value and corrects the reference signal as a function of the digital feed-back correction value.