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:
Apr. 05, 2022
Filed:
Apr. 20, 2021
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Soheil Golara, San Jose, CA (US);
Ali Mesgarani, Sunnyvale, CA (US);
Seyedeh Sedigheh Hashemi, Santa Clara, CA (US);
Mansour Keramat, Los Gatos, CA (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/07 (2006.01); G05F 3/26 (2006.01); G05F 1/46 (2006.01);
U.S. Cl.
CPC ...
H02M 3/073 (2013.01); G05F 1/46 (2013.01); G05F 1/462 (2013.01); G05F 1/465 (2013.01); G05F 3/262 (2013.01); G05F 3/265 (2013.01);
Abstract
A power supply circuit included in a computer system regulates a power supply voltage using an input power supply. During startup, the power supply circuit uses a first reference voltage that is generated using the input power supply to regulated the power supply voltage. After a period of time has elapsed, the power supply circuit switches to using a more accurate second reference voltage that is generated using the regulated power supply voltage.