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.

Date of Patent:
May. 11, 2021

Filed:

Dec. 11, 2018
Applicant:

Xilinx, Inc., San Jose, CA (US);

Inventors:

Ionut C. Cical, Saggart, IE;

Edward Cullen, Naas, IE;

Brendan Farley, Donabate, IE;

Assignee:

XILINX, INC., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/08 (2006.01); G06F 1/324 (2019.01); H03K 3/0231 (2006.01); H03K 3/011 (2006.01); G06F 1/3296 (2019.01); H03B 5/12 (2006.01); H03L 7/099 (2006.01);
U.S. Cl.
CPC ...
G06F 1/08 (2013.01); G06F 1/324 (2013.01); G06F 1/3296 (2013.01); H03B 5/1206 (2013.01); H03B 5/1228 (2013.01); H03B 5/1253 (2013.01); H03K 3/011 (2013.01); H03K 3/0231 (2013.01); H03L 7/0992 (2013.01);
Abstract

Examples described herein provide for a relaxation oscillator and corresponding methods of operation. In an example, a circuit includes a dynamically controllable current source, a capacitor, and an oscillator generation circuit. The dynamically controllable current source includes a digitally tunable current mirror configured to generate a current. The digitally tunable current mirror includes multiple transistors configured to be selectively electrically connected in parallel to alter a gain of the digitally tunable current mirror to control the current. The capacitor is selectively electrically connected to the dynamically controllable current source. The oscillator generation circuit is electrically connected to the capacitor. The oscillator generation circuit is configured to generate an oscillation signal in response to a voltage of the capacitor.


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