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:
Mar. 01, 2016
Filed:
Apr. 13, 2010
Giuseppe Platania, Catania, IT;
Vincenzo Polisi, Catania, IT;
Patrizia Milazzo, Catania, IT;
ST-ERICSSON SA, Plan-les-Ouates, CH;
Abstract
A DC-DC converter controls a supply current (I) provided to a rechargeable battery. The converter comprises an electrical input terminal that receives supply current (I). An electrical output terminal is connected to the battery through a coil with a resistor in series therebetween. A controllable selector connects the input terminal to the output terminal during a first time interval in order to supply the battery and to connect the input terminal to a ground potential during a successive second time interval. Also, a feedback module generates a control signal for the selector from a resistor feedback signal, indicative of a variation of a battery charge current (I). The feedback module has an electronic block that receives the feedback signal. The electronic block processes the feedback signal to measure a variation of the supply current (I) and provide the control signal to adjust the duration of the first time interval.