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. 29, 2014
Filed:
Jan. 28, 2011
Applicants:
Yvonne Lin, Saratoga, CA (US);
Tien-chun Yang, San Jose, CA (US);
Inventors:
Yvonne Lin, Saratoga, CA (US);
Tien-Chun Yang, San Jose, CA (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A charge pump has at least one charge pump stage. Each charge pump stage includes at least one NMOS device. The at least one NMOS device has a deep N-well (DNW), and is coupled to at least one capacitor, an input node, and an output node. The input node is arranged to receive an input signal. The at least one capacitor is arranged to store electrical charges. The charge pump stage is configured to supply the electrical charges to the output node, and the DNW is arranged to float for a positive pump operation.