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. 18, 2014
Filed:
Aug. 07, 2013
Rf Micro Devices, Inc., Greensboro, NC (US);
Lars Sandahl Ubbesen, Aalborg, DK;
Erik Pedersen, Klarup, DK;
Søren Deleuran Laursen, Vestbjerg, DK;
RF Micro Devices, Inc., Greensboro, NC (US);
Abstract
Embodiments of power amplification devices are described that include a power amplification circuit, a first voltage regulation circuit, and a second voltage regulation circuit. The voltage regulation circuits are configured to provide regulated voltages to the power amplification circuit. The power amplification device also includes a threshold detection circuit to get better maximum output power performance while preserving power efficiency. The threshold detection circuit is configured to increase a voltage adjustment gain of the first voltage regulation circuit when a regulated voltage level of regulated voltage from the second voltage regulation circuit reaches a threshold voltage level. In this manner, the voltage adjustment gain can be increased when the second voltage regulation circuit is close to or has railed. Increasing the voltage adjustment gain when the second voltage regulation circuit is railing or is close to railing improves the power performance and the power efficiency of the power amplification circuit.