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:
Jul. 25, 2017
Filed:
Dec. 31, 2012
Applicant:
Rfmicron, Inc., Austin, TX (US);
Inventors:
John J. Paulos, Austin, TX (US);
Shahriar Rokhsaz, Austin, TX (US);
Assignee:
RFMICRON, INC., Austin, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/07 (2006.01); H02M 7/10 (2006.01);
U.S. Cl.
CPC ...
H02M 7/103 (2013.01); H02M 3/07 (2013.01);
Abstract
An improved AC-to-DC charge pump for use, for example, in voltage generation circuits. In one embodiment, two 2-diode charge pumps are coupled in back-to-back configuration, and adapted to develop a substantially stable voltage on a mid-level rail. In one other embodiment, two 3-diode charge pumps are coupled in back-to-back configuration, and adapted also to develop a substantially stable voltage on a mid-level rail. In one preferred embodiment, all diodes are implemented as current-source-biased MOSFETs.