US Patent 7154693 Programmable overshoot for a servo writer

Patent 7154693 was granted and assigned to Texas Instruments on December, 2006 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Texas Instruments

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7154693

Date of Patent

December 26, 2006

Patent Application Number

10977412

Date Filed

October 29, 2004

Patent Primary Examiner

‌

Andrea Wellington

Patent abstract

A HDD write driver circuit (10) having a boost current overshoot programmed by a plurality of pull-up devices (MP35, MP36, MP39, MP45). The pull-up strength of an inverter (20) is adjustably selected by programming pull-up PMOS devices, and less power is dropped across a resistor (R41) such that there is less boost current overshoot when an overshoot MSB is low.