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:
Feb. 11, 2014
Filed:
Mar. 13, 2007
Franciscus A. C. M. Schoofs, Valkenswaard, NL;
Franciscus A. C. M. Schoofs, Valkenswaard, NL;
ST-Ericsson SA, Plan-les-Ouates, CH;
Abstract
A supply circuit () comprising an inductor () coupled to switching means () and comprising a capacitor () is provided with an impedance () located between the inductor () and the capacitor (), with a current injector () and with a feedback loop comprising a converter () for controlling the current injector () for compensating a ripple in an output voltage across the capacitor (). The impedance () allows injection of a compensating current at a location different from an output location. This increases a number of possible detections of ripples in the output voltage and allows a ripple in an output voltage to be detected even in case of loads introducing much noise across the capacitor (). The converter () detects a detection signal via the impedance () by measuring a voltage across the impedance () or across a serial circuit comprising the impedance () and the capacitor (). The impedance () comprises a resistor or a further inductor.