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:
Oct. 31, 2017
Filed:
Feb. 06, 2015
Applicant:
Stmicroelectronics (Grenoble 2) Sas, Grenoble, FR;
Inventor:
Vratislav Michal, Grenoble, FR;
Assignee:
STMicroelectronics (Grenoble 2) SAS, Grenoble, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/56 (2006.01); G05F 1/563 (2006.01); G05F 1/565 (2006.01);
U.S. Cl.
CPC ...
G05F 1/56 (2013.01); G05F 1/563 (2013.01); G05F 1/565 (2013.01);
Abstract
A switched-mode power supply device includes a power switch configured to transfer power from a supply line to a load in switched-mode; a first oscillator configured to operate at a frequency proportional to a voltage of the supply line; a second oscillator configured to operate at a frequency proportional to a voltage of the load; and a regulator configured to operate the power switch according to a duty cycle based on a ratio between the first and second oscillator frequencies.