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:
Apr. 05, 2016
Filed:
May. 09, 2011
Ngar Loong Alan Chan, San Jose, CA (US);
Ngar Loong Alan Chan, San Jose, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
System providing switchable impedance transformer matching for power amplifiers. In an exemplary implementation, an amplifier providing switchable impedance matching includes an output inductor (L) that is part of an output path of the amplifier and a first amplifier stage comprising a first inductor (L) coupled to the output inductor, the first inductor configured to couple a signal amplified by the first amplifier stage at a first power level to the output inductor in response to a first enable signal. The amplifier also includes a second amplifier stage comprising a second inductor (L) coupled to the output inductor, the second inductor configured to couple the signal amplified by the second amplifier stage at a second power level to the output inductor in response to a second enable signal.