Preamplifier for a read/write head

Details Preamplifier for a read/write head Preamplifier for a read/write head

1997-10-31

2000-09-12

Faber, Alan T.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Head amplifier circuit

360 67, 360 68, 360 66, 360 63, 360 53, 360128, 360108, G11B 509

Patent

active

061186023

ABSTRACT:
A multi-head, disc drive, of a data storage system having a preamplifier that is split into a mother chip and set of daughter chips, each daughter chip corresponding to a head in the disc drive. The daughter chips contain very little circuitry, typically just a write driver, the front end of a read amplifier, a write fault detector, and a bias control circuit. Because the daughter chip contains little circuitry, it can be made much smaller and lighter than a conventional preamplifier, allowing the daughter chip to be placed on the suspension, close to the head. This allows the signal sent to and received from the head associated with a daughter chip to be strong enough not to be corrupted during transmission to the circuitry in the rest of the preamplifier. It also increases the bandwidth and reduces the power consumption of the preamplifier. The mother chip contains the remaining circuitry needed in the preamplifier and can be placed farther away, on a portion of the HSA that can support a larger chip.

REFERENCES:
patent: 5430584 (1995-07-01), Petersen
patent: 5452151 (1995-09-01), Money et al.
patent: 5552950 (1996-09-01), Coffey et al.
patent: 5754369 (1998-05-01), Balakrishnan
patent: 5801896 (1998-09-01), Freitas
patent: 5859746 (1999-01-01), Ishida et al.
patent: 5977817 (1999-11-01), Soujeole

Affiliated with

Also associated with

Rating

Preamplifier for a read/write head does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preamplifier for a read/write head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preamplifier for a read/write head will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-101304