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. 22, 2015
Filed:
Jan. 16, 2013
Walter L. Terçariol, Campinas, BR;
Richard Titov Lara Saez, Campinas, BR;
Alfredo Salvarani, Itapira, BR;
Remerson Stein Kickhofel, Holambra, BR;
Walter L. Terçariol, Campinas, BR;
Richard Titov Lara Saez, Campinas, BR;
Alfredo Salvarani, Itapira, BR;
Remerson Stein Kickhofel, Holambra, BR;
FREESCALE SEMICONDUCTOR, INC., Austin, TX (US);
Abstract
Reducing output voltage ripple of power supplies. In some embodiments, an electronic circuit may include a first node configured to receive an input signal proportional to an output voltage produced by a power supply, a second node configured to receive a reference voltage configured to alternate between two voltage values during operation of the power supply, and a third node configured to output an enabling signal configured to control the operation of the power supply in response to a comparison between the input signal and the reference voltage. In other embodiments, a method may include turning on a power supply in response to a falling ripple being smaller than a first reference voltage value, and turning off the power supply in response to a rising ripple being greater than a second reference voltage value, where the second reference voltage value is smaller than the first reference voltage value.