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:
Sep. 17, 2013
Filed:
Jan. 27, 2012
Erik Pedersen, Klarup, DK;
Søren Deleurán Laursen, Vestbjerg, DK;
Jean-christophe Berchtold, Carlsbad, CA (US);
Erik Pedersen, Klarup, DK;
Søren Deleurán Laursen, Vestbjerg, DK;
Jean-Christophe Berchtold, Carlsbad, CA (US);
RF Micro Devices, Inc., Greensboro, NC (US);
Abstract
Systems and devices for radio frequency (RF) power amplification are disclosed. In one embodiment, a power amplification device includes a power amplification circuit operable to amplify an RF transmission signal and a voltage regulation circuit operable to generate a regulated voltage. The regulated voltage level of the regulated voltage sets an amplification gain of the power amplification circuit. The voltage regulation circuit allows the regulated voltage level closer to the saturation voltage level when a band-select signal indicates that the RF transmission signal is being transmitted within a low transmission frequency band and is further away from the saturation voltage level when the band-select signal indicates that the RF transmission signal is being transmitted within a high transmission frequency band. This provides greater power efficiency when the RF transmission signal is being transmitted with the low transmission frequency band.