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:
Apr. 05, 2016
Filed:
Feb. 06, 2014
Applicant:
Analog Devices, Inc., Norwood, MA (US);
Inventors:
Dean A. Badillo, Schaumburg, IL (US);
Mohammad Asmani, Ladera Ranch, CA (US);
Klaus Juergen Schoepf, Chandler, AZ (US);
Reimund Rebel, Maricopa, AZ (US);
Peiqing Zhu, Coppell, TX (US);
Assignee:
Analog Devices, Inc., Norwood, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 5/36 (2006.01); H03K 3/0231 (2006.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
H02J 7/00 (2013.01); H03B 5/36 (2013.01); H03K 3/0231 (2013.01);
Abstract
Circuits for charging capacitors in connection with oscillators are described. The oscillator may include a mechanical resonator. The circuits may include a charging element and a switched capacitor subcircuit to control operation of the charging element, and may be considered a charging circuit in some scenarios. The charging circuits may provide rapid charging of a capacitor to provide a reference voltage to the oscillator.