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. 07, 2020
Filed:
Apr. 25, 2019
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Michael Couleur, Rottach Egern, DE;
Andrea Acquas, München, DE;
Nicola Rasera, Unterschleissheim, DE;
Assignee:
Apple Inc., Cupertino, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); G06F 1/26 (2006.01); H02M 3/156 (2006.01); H02M 3/157 (2006.01);
U.S. Cl.
CPC ...
H02M 3/1582 (2013.01); G06F 1/26 (2013.01); H02M 3/156 (2013.01); H02M 3/157 (2013.01); H02M 2003/1566 (2013.01);
Abstract
A power converter circuit included in a computer system may charge and discharge a switch node coupled to a regulated power supply node via an inductor. During a charge cycle, the power converter circuit may generate a reference ramp signal that has an initial voltage level greater than that of the switch node. The power converter may also generate a sense ramp signal using the voltage level of the switch node, and halt the charge cycle using results of a comparison of the respective voltage levels of the reference ramp signal and the sense ramp signal.