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. 30, 2020
Filed:
Oct. 16, 2019
Apparatus and method for dynamically stabilizing current limiting in a portable communication device
Applicant:
Motorola Solutions, Inc., Chicago, IL (US);
Inventors:
Kevin Alonso, Davie, FL (US);
David W. Henry, Miramar, FL (US);
Michael Hand, Coral Springs, FL (US);
Assignee:
MOTOROLA SOLUTIONS, INC., Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/04 (2006.01); H03F 3/24 (2006.01); H02J 7/00 (2006.01); H04L 5/16 (2006.01); H04W 4/10 (2009.01);
U.S. Cl.
CPC ...
H02M 3/04 (2013.01); H02J 7/0063 (2013.01); H03F 3/245 (2013.01); H04L 5/16 (2013.01); H04W 4/10 (2013.01); H02J 2007/0067 (2013.01); H03F 2200/171 (2013.01); H03F 2200/451 (2013.01);
Abstract
A battery operated portable communication device is provided with improved transmitter current limit stabilization via a current limit stabilization circuit operatively coupled to the battery and a DC-to-DC converter of the transmitter. The current limit stabilization circuit provides a variable stabilizing reference voltage which is directly proportional to the supply voltage. The current limit stabilization circuit generates a voltage limit output voltage that controls both the power to the transmitter () and limits current to the transmitter.