Current drive circuit for an induction coil

Details Current drive circuit for an induction coil Current drive circuit for an induction coil

1979-05-24

1981-02-03

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Head amplifier circuit

G11B 509

Patent

active

042492190

ABSTRACT:
A current drive circuit for an induction coil is provided comprising a clamp circuit connected to the two terminals of the coil. This clamp circuit prevents the voltages of the two terminals from dropping below a reference voltage, thereby preventing decreases of the amplifier constants h.sub.FE of the transistors which are also coupled to the two terminals for a read-out operation.

REFERENCES:
patent: 3512171 (1970-05-01), Hibner
patent: 4063293 (1977-12-01), Perzhiz

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