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:
Nov. 09, 2021
Filed:
Apr. 30, 2019
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Assignee:
Apple Inc., Cupertino, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H02M 3/157 (2006.01); G05F 1/46 (2006.01); H03K 5/24 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/158 (2013.01); G05F 1/462 (2013.01); H02M 3/157 (2013.01); H03K 5/24 (2013.01); H02M 1/0003 (2021.05);
Abstract
A power converter circuit that includes a switch node coupled to a regulated power supply node via an inductor may, during a discharge cycle, sink current from the regulated power supply node. A control circuit may generate the rising and falling ramp signals using voltage levels of an input power supply node and the regulated power supply node. The control circuit may also determine a duration of the discharge cycle using results of comparing respective voltage levels of the generated rising and falling ramp signals.