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:
Mar. 08, 2011
Filed:
Oct. 31, 2007
Applicants:
Faisal Ahmad, San Jose, CA (US);
Han-suk Seo, Seoul, KR;
Inventors:
Faisal Ahmad, San Jose, CA (US);
Han-Suk Seo, Seoul, KR;
Assignee:
Intersil Americas Inc., Milpitas, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A battery charger comprises charging circuitry for providing a battery charging voltage responsive to an input voltage. First circuitry provides both over-voltage protection and an input voltage bypass signal responsive to the input voltage. The first circuitry includes a low impedance switch having a resistance of at least 500 mΩ for connecting the input voltage to an output voltage node. The first circuit also includes a higher impedance switch having a resistance of at least 1000 mΩ for providing the input voltage as a voltage bypass signal.