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:
Apr. 23, 2013
Filed:
Dec. 21, 2009
Salvatore Rosario Musumeci, Catania, IT;
Maria Francesca Seminara, Catania, IT;
Marianna Sanza, Siracusa, IT;
Patrizia Milazzo, Catania, IT;
Salvatore Rosario Musumeci, Catania, IT;
Maria Francesca Seminara, Catania, IT;
Marianna Sanza, Siracusa, IT;
Patrizia Milazzo, Catania, IT;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
An electronic power supply circuit for a load composed of at least two independent circuit branches connected in parallel to each other, where a first branch requires a different power supply voltage from the power supply voltage of a second branch. The circuit includes a step-up converter, a timer circuit connected to the step-up converter so that the converter generates, alternately, at least a first output voltage able to power the first circuit branch and a second output voltage able to power a second circuit branch, a regulation circuit able to regulate the overvoltages at the ends of an output capacitor of the converter during commutations between the different output voltages; and a commutation circuit able to activate the step-up converter, according to the timer signals coming from the timer circuit, when the output voltage at the ends of the output capacitor has reached the level needed to power the activated branch and regulate the current flowing thereto.