Current setting circuit to provide a write current to a recordin

Details Current setting circuit to provide a write current to a recordin Current setting circuit to provide a write current to a recordin

1994-06-03

1996-03-19

Sniezek, Andrew L.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Head amplifier circuit

327538, 360 61, G11B 509, G11B 1512

Patent

active

055007740

ABSTRACT:
A write current setting circuit of a magnetic recording apparatus which can be reduced in the number of IC pins and enables the increase of the IC pins accompanying an increase in the number of modes to be kept to a minimum. The external resistance elements for generating the sub-mode correction current are connected to a single IC pin. The IC is provided with a current generation circuit and a voltage follower for holding the output voltage at a predetermined value and is provided with a sub-mode switch circuit for switching the connection between the IC pin and the internal power source line and output terminal of the voltage follower in accordance with the input of a correction current control signal. Due to this, while six external resistance elements are required, (2.times.n) modes can be set by (n+1) IC pins of the integrated circuit.

REFERENCES:
patent: 4327383 (1982-04-01), Holt
patent: 4432025 (1984-02-01), Grogan
patent: 4821125 (1989-04-01), Christensen et al.
patent: 5216553 (1993-06-01), Nakamura

Affiliated with

Also associated with

Rating

Current setting circuit to provide a write current to a recordin does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Current setting circuit to provide a write current to a recordin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current setting circuit to provide a write current to a recordin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1962499