Method for driving magneto-resistive element

Details Method for driving magneto-resistive element Method for driving magneto-resistive element

1996-02-27

1997-11-18

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

H01F 708

Patent

active

056892250

ABSTRACT:
A method for driving a magneto-resistive effect element in which a bias magnetic field is applied by a bias conductor fed with a bias current to a magneto-resistive effect element whose resistivity is changed with an impressed magnetic field, wherein the improvement comprises supplying to said bias conductor a pulsed initial current having a pulse crest value higher than the bias current value prior to supplying said bias current. The MR head can be operated with MR characteristics with stable output and with highly sensitive MR characteristics.

REFERENCES:
patent: 4443826 (1984-04-01), Sawada et al.
patent: 4679107 (1987-07-01), Imakoshi et al.
patent: 5461527 (1995-10-01), Akiyama et al.
patent: 5493466 (1996-02-01), Suyama
patent: 5535077 (1996-07-01), Saito et al.

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