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:
Nov. 27, 2007
Filed:
Nov. 17, 2005
George B. Norris, Gilbert, AZ (US);
Benjamin R. Gilsdorf, Phoenix, AZ (US);
David A. Newman, Tempe, AZ (US);
George B. Norris, Gilbert, AZ (US);
Benjamin R. Gilsdorf, Phoenix, AZ (US);
David A. Newman, Tempe, AZ (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A soft saturation detection circuit for a radio frequency ('RF') power amplifier is configured to detect the onset of soft saturation in an unambiguous and accurate manner. The circuit compares the time derivative of a voltage signal indicative of the RF output power to the time derivative of a control voltage signal for the RF power amplifier. The circuit also employs a gating mechanism that ensures that a soft saturation indication signal is generated under appropriate operating conditions.