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:
Jun. 15, 2004
Filed:
Jun. 28, 2002
Applicant:
Inventors:
David A. Newman, Tempe, AZ (US);
Benjamin R. Gilsdorf, Phoenix, AZ (US);
Assignee:
Freescale Semiconductor, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/04 ; H03F 3/14 ; H03G 3/10 ;
U.S. Cl.
CPC ...
H03F 3/04 ; H03F 3/14 ; H03G 3/10 ;
Abstract
A power amplifier's base current is biased by a control circuit that produces a linear relationship across varying temperatures and processes. A voltage to current converter controls a voltage follower configured operational amplifier in response to a reference device to drive the voltage and current of the power amplifier.