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. 22, 2013
Filed:
May. 15, 2012
Ross S. Wilson, Menlo Park, CA (US);
Jason P. Brenden, Woodbury, MN (US);
Xuemin Yang, Edina, MN (US);
Ross S. Wilson, Menlo Park, CA (US);
Jason P. Brenden, Woodbury, MN (US);
Xuemin Yang, Edina, MN (US);
LSI Corporation, Milpitas, CA (US);
Abstract
Various embodiments of the present invention provide single-ended and differential current drivers for heat assisted magnetic recording and other applications. For example, a current driver is disclosed that includes an upper output terminal and lower output terminal, a number of current switches operable to selectively contribute electrical currents through the upper and lower output terminals, a control input for each of the current switches operable to control the electrical currents, and a voltage supply operable to establish a voltage across the upper and output terminals.