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:
Nov. 08, 2005
Filed:
Dec. 05, 2002
Karsten Nielsen, Helsingor, DK;
Kennet Skov Andersen, Kobenhavn, DK;
Karsten Nielsen, Helsingor, DK;
Kennet Skov Andersen, Kobenhavn, DK;
Bang & Olufsen ICEPower A/S, Lyngby, DK;
Abstract
This invention relates to an attenuation control system () in a switching power conversion system comprising a digital modulator (), for generating a modulated control signal from a (digital) source signal and a switching power state (), said attenuation control system comprising: means for digitally attenuating the modulated signal, first gain shifting means () for shifting a supply voltage of said power stage between a plurality of predefined voltage levels, said first gain shifting means being arranged to decrease the power stage gain when the attenuation of the modulated signal exceeds a predefined level. This invention also relates to an attenuating method in a switching power conversion system comprising a digital modulator, for generating a modulated control signal from a (digital) source signal, and a switching power stage.