DOI: https://doi.org/10.15407/techned2020.06.087

INVESTIGATION OF CHARACTERISTICS OF PRECISION AMPLIFIERES

Authors
Yu.F. Tesyk¹*, R.M. Moroz¹**, Yu.M. Tuz²***, O.V. Kozyr²****
1- Institute of Electrodynamics of National Academy of Sciences of Ukraine,
pr. Peremohy, 56, Kyiv, 03057, Ukraine,
e-mail: Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript
2- National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”,
Peremohy ave., 37, Kyiv, 03056, Ukraine,
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* ORCID ID : https://orcid.org/0000-0001-6567-1436
** ORCID ID : https://orcid.org/0000-0002-4292-8160
*** ORCID ID : https://orcid.org/0000-0003-4083-060X
**** ORCID ID : https://orcid.org/0000-0002-9285-5940

Abstract

A review of the principles construction of existing high voltage measuring amplifiers (HVMA) was carried out. Their frequency range was investigated. It is proposed to use a circuit of additively connected operational amplifiers with virtual power to achieve the limiting frequencies of 400 kHz and a voltage of 500V. Several models of the circuit in the circuit simulator were investigated. It was found that to compensate for the phase shift of the output signal it is necessary to use boosting capacitances and a circuit with independent feedback. References 11, figures 5, tables 3.

Key words: reproduction, metrological equipment, electricity, measure power amplifiers, calibrator, computer simulation.

Received: 03.06.2019
Accepted: 27.08.2020
Published: 21.10.2020

References
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