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:
Nov. 03, 2015

Filed:

Mar. 18, 2014
Applicant:

Marvell World Trade Ltd., St. Michael, BB;

Inventors:

Dennis Sinitsky, Sunnyvale, CA (US);

Tao Shui, Cupertino, CA (US);

Assignee:

Marvell World Trade Ltd., St. Michael, BB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/0231 (2006.01); H03K 3/02 (2006.01); H03K 3/011 (2006.01); H03K 4/502 (2006.01); H03L 1/00 (2006.01); H03L 1/02 (2006.01);
U.S. Cl.
CPC ...
H03K 3/02 (2013.01); H03K 3/011 (2013.01); H03K 3/0231 (2013.01); H03K 4/502 (2013.01); H03L 1/00 (2013.01); H03L 1/02 (2013.01);
Abstract

New and highly stable oscillators are disclosed. Such an oscillator may include a first capacitor electrically connected to a first charging switch and a first discharging switch, a second capacitor electrically connected to a second charging switch and a second discharging switch, a first chopping circuit having a first input electrically connected to the first capacitor and a second input electrically connected to a reference voltage, a second chopping circuit having a first input electrically connected to the second capacitor and a second input electrically connected to the reference voltage, a first comparator having a first input electrically connected to a first and second output of the first chopping circuit, a second comparator having a first input electrically connected to a first and second output of the second chopping circuit, and control circuitry having a first input electrically coupled to an output of the first comparator and a second input electrically connected to an output of the second comparator.


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