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:
Dec. 01, 2015
Filed:
Aug. 14, 2012
David Chesneau, Saint Jean de Moirans, FR;
Xavier Branca, Grenoble, FR;
David Chesneau, Saint Jean de Moirans, FR;
Xavier Branca, Grenoble, FR;
ST-ERICSSON SA, Plan-les-Ouates, CH;
Abstract
A power source and a mobile device include a voltage regulating device, VRD. VRD's power stage, PS, has an inductor between a first node and a second node, a first switch between the first node and a non-zero potential of constant polarity, a first capacitor between a reference potential, V, and a second switch coupled to the first node, a second capacitor between Vand a third switch coupled to the second node, a fourth switch between the second node and V, a fifth switch between the first node and V, and a comparator connected to detect an inversion of current in the inductor. The PS outputs the voltages across the first and the second capacitor and an inversion signal. Inversion detection triggers VRD's control circuit to send control signals causing the PS to close the fourth and fifth switches and to open the first, second and third switches.