Method and apparatus for providing matched differential MR biasing and pre-amplification

Method and apparatus for providing matched differential MR biasing and pre-amplification

A method and apparatus for providing matched differential MR biasing and pre-amplification. Tightly matched and well centered low-level MR bias voltage is provided directly to the sensing element for controlled input-impedance differential pre-amplification without common-mode voltage level control...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: JOVE STEPHEN ALAN, CHEUNG WAYNE LEUNG, VANNORSDEL KEVIN ROY
Format: Patent
Sprache:eng
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Beschreibung
Zusammenfassung:A method and apparatus for providing matched differential MR biasing and pre-amplification. Tightly matched and well centered low-level MR bias voltage is provided directly to the sensing element for controlled input-impedance differential pre-amplification without common-mode voltage level control with loops.