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.:

US 9490725 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 08, 2016

Filed:

Mar. 14, 2014
Applicant:

The State of Oregon Acting BY and Through the State Board of Higher Education on Behalf of Oregon State University, Corvallis, OR (US);

Inventors:

Lingli Xia, San Diego, CA (US);

Patrick Y. Chiang, Corvallis, OR (US);

Jiao Cheng, Portland, OR (US);

Assignee:

Oregon State University, Corvallis, OR (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/07 (2006.01); H02M 7/25 (2006.01);
U.S. Cl.
CPC ...
H02M 7/25 (2013.01); H02M 2003/078 (2013.01);
Abstract

Examples of multi-stage programmable rectifiers are provided herein. Each rectifier stage can include a first transistor and a switch connected to the first transistor. A threshold voltage of the first transistor can be programmed through selection of one of a plurality of voltages available at the switch. Each rectifier stage can also include a second transistor that can be connected in series with the first transistor. An output capacitor can be connected to the second transistor at an output of the rectifier stage. The plurality of voltages provided at the switch allows the threshold voltage of the first transistor to be adjusted in either a positive or negative position to increase efficiency of the rectifier. A calibration process can be used to identify the position of each switch in the rectifier stages that results in the highest efficiency or rectifier output voltage.


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Xia, Lingli. (2016). Multi-stage programmable rectifier with efficiency tracking (U.S. Patent No. 9490725). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9490725

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