Bubble memory sense amplifier

Details Bubble memory sense amplifier Bubble memory sense amplifier

1981-01-19

1983-06-14

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

Detectors

G11C 1908

Patent

active

043886990

ABSTRACT:
A bubble sense amplifier has a biasing circuit for adjusting the bias currents through magneto-resistive detectors so as to establish a preferred common mode operating voltage across the bubble detectors. The preamplifier is coupled through a junction capacitance circuit to a clamp-and-strobe circuit and to a differential comparator. The differential comparator has a selectable threshold voltage, and compares the differential bubble signal to the selected threshold voltage.

REFERENCES:
patent: 3958185 (1976-05-01), Hartung
patent: 4174539 (1979-11-01), Timm

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