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. 02, 2017
Filed:
Sep. 04, 2015
Applicant:
Qualcomm Incorporated, San Diego, CA (US);
Inventors:
Farsheed Mahmoudi, San Diego, CA (US);
James Thomas Doyle, Carlsbad, CA (US);
Amirali Shayan, San Diego, CA (US);
Assignee:
QUALCOMM Incorporated, San Diego, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/157 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/157 (2013.01); H02M 2001/0003 (2013.01); H02M 2001/0025 (2013.01);
Abstract
A switch-mode power supply is provided that includes a comparator for producing a pulse-width modulated (PWM) controller clock signal for controlling a power switch in the switch-mode power supply. The switch-mode power supply is configured to superimpose a DC-free version of a ramp voltage with an error voltage to produce a combined voltage. The comparator compares the combined voltage to a reference voltage to produce the PWM controller clock signal.