A Novel Design of Analog Signal Power Amplifier Module for Relay Protection Tester

DOI

10.2991/icmmct-17.2017.214How to use a DOI?

Keywords

Analog Signal Power Amplifier Module, Rely Protection Tester.

Abstract

The analog signal power amplifier module is an important component of relay protection tester. As is known, most of the analog signal power amplifier modules employ single output loops to achieve the output accuracy regardless of the output current, which may lead to large capacity, low efficiency and more cost. In order to overcome these deficiencies aforementioned, a novel design for the analog signal power amplifier module is proposed in this paper. This design improves the complementary push-pull current amplification circuit, and adds the logical control loop and the analog switch so that the current amplification circuit can switch different output loops according to the output current, which results in lower capacity, volume and cost, and higher efficiency. Finally, the new analog power amplifier module shows good amplitude-frequency property in the simulation and has ability to meet the relay protection tester demand under different frequency.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Jianshi Bai
AU  - Tong Wu
AU  - Fang Shen
AU  - Yi Liang
AU  - Jing Gao
AU  - Zhentao Han
PY  - 2017/04
DA  - 2017/04
TI  - A Novel Design of Analog Signal Power Amplifier Module for Relay Protection Tester
BT  - Proceedings of the 2017 5th International Conference on Machinery, Materials and Computing Technology (ICMMCT 2017)
PB  - Atlantis Press
SP  - 1071
EP  - 1076
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmmct-17.2017.214
DO  - 10.2991/icmmct-17.2017.214
ID  - Bai2017/04
ER  -