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:
Jun. 09, 2015
Filed:
Mar. 07, 2013
Applicant:
Adam Glibbery, Reading, GB;
Inventor:
Adam Glibbery, Reading, GB;
Assignee:
ANALOG DEVICES GLOBAL, Hamilton, BM;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/0231 (2006.01); H03K 3/36 (2006.01); H03F 3/45 (2006.01); H03K 4/06 (2006.01);
U.S. Cl.
CPC ...
H03K 3/36 (2013.01); H03F 3/45179 (2013.01); H03K 3/0231 (2013.01); H03F 3/45183 (2013.01); H03F 2203/45561 (2013.01); H03F 2203/45614 (2013.01); H03F 2203/45616 (2013.01); H03F 2203/45641 (2013.01); H03F 2203/45644 (2013.01); H03F 2203/45724 (2013.01); H03F 2203/45726 (2013.01); H03K 4/06 (2013.01);
Abstract
Embodiments of the present disclosure may provide a relaxation oscillator with improved performance against phase noise error. The phase noise error may be reduced from sources whose power is greater at lower frequencies. To reduce the noise error, the relaxation oscillator may include chopping in the charging current driver; chopping in the trigger level generator; and/or chopping in the currents that feed the cells. A chopped amplifier may be provided to perform chopping of the input signals.