Biasing for magnetic circuits

Details Biasing for magnetic circuits Biasing for magnetic circuits

1984-12-24

1986-12-23

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of biasing or erasing

360 25, G11B 503, G11B 502

Patent

active

046316043

ABSTRACT:
A magnetic circuit, such as used in a magnetic recording head, or with a Hall-effect device, is biased by applying signals having noise-like properties to the magnetic circuit. Since the biasing signals will be effectively uncorrelated with other signals being applied to the magnetic circuit, the biasing signals cannot introduce an offset in the applied signals which might otherwise cause distortion. In addition, the spectrum of the biasing signals is broadband and of low amplitude. As a result, the biasing signals are unlikely to cause interference with other nearby electrical components.

REFERENCES:
patent: 2604546 (1952-07-01), Connell
patent: 4454548 (1984-06-01), Jensen

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