Matthew Ghaleb Sunna

US Patent:

8279549, Oct 2, 2012

Filed:

Apr 29, 2009

Appl. No.:

12/432349

Inventors:

Taras Vasylyovych Dudar - Plano TX, US
Matthew Ghaleb Sunna - Murphy TX, US
Glauco Rizzo - Richardson TX, US

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

G11B 5/03

US Classification:

360 66, 360 46, 360 67, 360 68

Abstract:

A device for setting a bias for a magneto-resistive (MR) head can include a counter configured to provide a count value that varies incrementally from a first count value to a maximum count value. Logic is configured to determine at least one of whether the bias for the MR head has reached a predetermined threshold and whether the counter has reached the maximum count value. The logic provides a bias output signal corresponding to the count value for setting the bias of the MR head according to the determination by the logic.