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. 10, 2012
Filed:
Jun. 30, 2009
Applicants:
Chun LU, San Jose, CA (US);
Luyang Luo, Chengdu, CN;
Inventors:
Chun Lu, San Jose, CA (US);
Luyang Luo, Chengdu, CN;
Assignee:
O2Micro, Inc, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 1/10 (2006.01); H02J 7/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system includes a power bus and a circuit. The power bus delivers power from a first power source to an output node. The circuit monitors a current flowing through the power bus and provides power from a second power source to the output node based on an amount of the current, and maintains a voltage level of the output node in a predetermined range.