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. 17, 2018
Filed:
Nov. 18, 2016
Applicant:
Stmicroelectronics International N.v., Amsterdam, NL;
Inventors:
Assignee:
STMICROELECTRONICS INTERNATIONAL N.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/093 (2006.01); H03L 7/08 (2006.01); H03L 7/099 (2006.01); H03L 7/089 (2006.01);
U.S. Cl.
CPC ...
H03L 7/093 (2013.01); H03L 7/0802 (2013.01); H03L 7/0893 (2013.01); H03L 7/0895 (2013.01); H03L 7/0896 (2013.01); H03L 7/0991 (2013.01);
Abstract
An embodiment circuit includes a first charge pump configured to generate a first current at a first node, and a second charge pump configured to generate a second current at a second node. The circuit further includes an isolation buffer coupled between the first node and the second node and an adder having a first input coupled to the second node. The circuit additionally includes an auxiliary charge pump configured to generate a third current at a second input of the adder, and an oscillator having an input coupled to an output of the adder.