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:
Dec. 12, 2017
Filed:
Sep. 22, 2016
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Hubert Attah, Santa Clara, CA (US);
Jay B. Fletcher, Austin, TX (US);
Erick O. Torres, Austin, TX (US);
Fabio Gozzini, San Jose, CA (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03K 21/02 (2006.01); H03K 19/21 (2006.01);
U.S. Cl.
CPC ...
H03K 21/026 (2013.01); H03K 19/21 (2013.01);
Abstract
An apparatus is disclosed, including a driver circuit, a comparator circuit, and a counter circuit. The driver circuit may be configured to source a current to a load circuit. The comparator circuit may be configured to perform a comparison of a reference voltage to a voltage across the load circuit. The counter circuit may be configured to modify a digital count value based on the comparison. The driver circuit may be further configured to adjust a value of the current using the digital count value.