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:
May. 31, 2016
Filed:
Sep. 05, 2013
Applicant:
Broadcom Corporation, Irvine, CA (US);
Inventors:
Debopriyo Chowdhury, San Diego, CA (US);
Ali Afsahi, San Diego, CA (US);
Assignee:
Broadcom Corporation, Irvine, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/22 (2006.01); H04L 27/04 (2006.01); H04B 1/04 (2006.01); H02M 3/158 (2006.01); H03F 1/02 (2006.01); H03F 3/24 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/158 (2013.01); H03F 1/0227 (2013.01); H03F 3/24 (2013.01); H02M 2001/0022 (2013.01);
Abstract
A communication device, such as a smart phone, includes an envelope tracking power supply. The envelope tracking power supply is configured for direct connection to a supply voltage. The direct connection may be made without connection through an intermediate voltage regulator, such as a low drop out regulator. The supply voltage may be a relatively high battery voltage, for example, that would normally result in greater than permissible voltage limits on the transistors used in conventional envelope tracking power supplies.