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:
Jan. 07, 2014
Filed:
Dec. 02, 2011
Applicants:
Baker Scott, San Jose, CA (US);
George Maxim, Milpitas, CA (US);
Stephen Franck, Felton, CA (US);
Inventors:
Assignee:
RF Micro Devices (Cayman Islands), Ltd., Greensboro, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A power amplifier (PA) using switched-bulk biasing to minimize the risk of output stage snapback effect is disclosed. An adaptive biasing of the output stage prevents device breakdown while accommodating large voltage swings. These protection techniques can be applied to all types of cascode configurations of a PA, including single-ended, differential, quadrature, segmented and any combination thereto.