A.C. Coupled video amplifier with fast pulse recovery

Amplifiers – Signal feedback – Amplifier in signal feedback path

Patent

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Details

330107, 330109, 330110, H03F 134

Patent

active

044344040

ABSTRACT:
A highpass feedback loop for A.C. coupled amplifier circuits is disclosed, by means of which pulse undershoot recovery is accelerated. The feedback loop includes an operational amplifier which goes into limiting above a selected amplitude threshold so that for pulses exceeding the threshold the amplifier frequency response is unaffected.

REFERENCES:
patent: 3701028 (1972-10-01), Markevich
patent: 4227155 (1980-10-01), Lerma

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