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:
Oct. 14, 2008
Filed:
Jul. 12, 2006
Applicants:
Sakti Rana, Singapore, SG;
Yayue Zhang, Singapore, SG;
Siew Yong Chui, Singapore, SG;
Inventors:
Assignee:
Marvell International Ltd., Hamilton, BM;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 21/02 (2006.01); H02J 7/00 (2006.01); H01G 2/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A protection circuit for a capacitor comprises a voltage pump that selectively charges the capacitor. A current source selectively charges the capacitor. A controller compares a charging voltage to a threshold charging voltage and selects at least one of the voltage pump and the current source based on the comparison.