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:
Aug. 30, 2011
Filed:
Jul. 27, 2010
David K. Homol, Kernersville, NC (US);
Karl J Couglar, Oak Ridge, NC (US);
Hua Wang, High Point, NC (US);
Ryan M Pratt, High Point, NC (US);
David K. Homol, Kernersville, NC (US);
Karl J Couglar, Oak Ridge, NC (US);
Hua Wang, High Point, NC (US);
Ryan M Pratt, High Point, NC (US);
Skyworks Solutions, Inc., Woburn, MA (US);
Abstract
Apparatuses and methods for enabled switch detection are disclosed. In one embodiment, an apparatus includes a complimentary metal oxide semiconductor (CMOS) switch having a gate, a drain, a source, and a well. The source and drain are formed in the well, and the gate is formed adjacent the well between the source and drain. The source is configured to receive a radio frequency signal from a first power amplifier. The apparatus further includes a switch enable detect block configured to compare a signal indicative of the gate voltage of the first switch to a first reference signal and to generate an output comparison signal based at least partly on the comparison. The apparatus further includes a power amplifier bias control block configured to enable the first power amplifier based at least partly on the output comparison signal from the switch sense block.