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:
Jul. 26, 2022
Filed:
Aug. 06, 2020
Applicant:
Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;
Inventors:
Jason W. Lawrence, Austin, TX (US);
Eric J. King, Austin, TX (US);
Christian Larsen, Austin, TX (US);
Hasnain Akram, Austin, TX (US);
Eric Kimball, Austin, TX (US);
Assignee:
Cirrus Logic, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03G 3/00 (2006.01); H03F 3/183 (2006.01); H03G 3/30 (2006.01); H02M 3/07 (2006.01); H03F 1/02 (2006.01);
U.S. Cl.
CPC ...
H03G 3/004 (2013.01); H02M 3/07 (2013.01); H03F 1/0227 (2013.01); H03F 3/183 (2013.01); H03G 3/3026 (2013.01); H03F 2200/03 (2013.01);
Abstract
A method for operating a charge pump having a variable switching frequency may include comparing a target minimum output voltage with an output voltage generated at an output of the charge pump and controlling switching of switches of the charge pump based on the comparison such that the variable switching frequency varies as an output current driven by the charge pump varies.