Technical Tools in Control

Analysis of basic specifications of operational amplifiers with a differential input and sampled-data stabilization

R. R. Babayan, Yu. V. Gorbatov, R. R. Babayan

Moscow

Abstract: Differential measuring amplifiers that employ pulse stabilization are analyzed by using an additional amplifier and storing condensers. The dynamic properties are determined by the method of moving average which leads to expressions for a generalized transfer function. Relations for the shift of zero, transfer functions for the synphase and differential signal components, and the attenuation factor of the synphase component are found. In the low frequency range this factor is shown to increase significantly when an additional amplifier is used.

UDC: 621.317.745


Received: 29.10.1986

 English version: Automation and Remote Control, 1988, 49:8, 1103–1108

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