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. 03, 2008
Filed:
Dec. 24, 2003
Applicants:
John R. A. Ayres, Reigate, GB;
Keitaro Yamashita, Ashiya, JP;
Inventors:
John R. A. Ayres, Reigate, GB;
Keitaro Yamashita, Ashiya, JP;
Assignee:
TPO Hong Kong Holding Limited, Shatin, Hong Kong SAR, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/18 (2006.01); G05F 3/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A charge pump circuit has a voltage increasing stage and a voltage decreasing stage in parallel, and sharing a common input. This shows charge to flow between the stages, so that charge used in the pumping of one stage is recycled to the other stage.