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:
Sep. 03, 2013
Filed:
Dec. 21, 2011
Christophe M. Joly, Thousand Oaks, CA (US);
Yue Chen, San Jose, CA (US);
Shihui Xu, Newbury Park, CA (US);
Christophe M. Joly, Thousand Oaks, CA (US);
Yue Chen, San Jose, CA (US);
Shihui Xu, Newbury Park, CA (US);
Skyworks Solutions, Inc., Woburn, MA (US);
Abstract
This disclosure provides systems, apparatus, and methods for switching a portion of a power amplifier on and off during different modes of operation. In one aspect, a control circuit can include separate switches to provide bias currents to different portions of a power amplifier. The control circuit can include another switch to electrically connect outputs of the separate switches in a first mode of operation (for example, a high power mode) and electrically isolate the outputs of the separate switches in a second mode of operation (for example, a low power mode). In some implementations, a circuit element, such as a field effect transistor or a diode, can turn off one of the separate switches in the second mode. Alternatively or additionally, another circuit element, such as a field effect transistor or a diode, can prevent a power amplifier portion from turning on in the second mode.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile