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. 25, 2011
Alexandre Balmefrezol, Sassenage, FR;
Patrizia Milazzo, S. Agata Li Battiati, IT;
Giuseppe Platania, Valverde, IT;
Vincenzo Polisi, S. Maria di Licodia, IT;
Alexandre Balmefrezol, Sassenage, FR;
Patrizia Milazzo, S. Agata Li Battiati, IT;
Giuseppe Platania, Valverde, IT;
Vincenzo Polisi, S. Maria di Licodia, IT;
ST-ERICSSON SA, Plan-les-Ouates, CH;
Abstract
A Power Management Circuit for a portable electronic device comprising an internal battery to be charged either through a first interface or through an AC_DC conversion circuit. The circuit comprises a first buck/boost converter having a Switched Mode Power Supply (SMPS) mode which can be controlled either in a buck or a boost mode, said first buck/boost controller being associated with a first external coil for the purpose of embodying a battery charging circuit through a first interface (USB). The circuit further comprises a second buck/boost converter which can also be controlled either in a buck or a boost mode. Bypass circuits are used for performing, under control of a control circuit, the bypass of either the voltage of the battery or the voltage generated by said buck/boost controllers when in boost mode to a second interface (SIM/MMC).