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:
Jul. 07, 2009
Filed:
Mar. 09, 2007
Olivier Giraud, Villard de Lans, FR;
Roger Petigny, Saint-Martin D'Uriage, FR;
Philippe Marguery, Poisat, FR;
Olivier Giraud, Villard de Lans, FR;
Roger Petigny, Saint-Martin D'Uriage, FR;
Philippe Marguery, Poisat, FR;
STMicroelectronics S.A., Montrouge, FR;
Abstract
A generator capable of supplying one or more output signals with a modulated cyclic ratio includes one or more formatting circuits each processing one input signal and one or more class D amplifiers powered with a power supply voltage and being driven by a corresponding one of the formatting circuits. Each formatting circuit has a counter-reaction loop and uses a reference voltage for which the average value is equal to half the power supply voltage. The corresponding output signal is thus corrected for any variations in the power supply voltage.