Protection against transient overvoltage in precision AC-DC transfer measurement system

Thato E. Kgakatsi, Eugene Golovins, Johan Venter, Dan V. Nicolae

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Reduction in size and improvement of sensitive margins in modern semiconductor devices make them increasingly susceptible to stress and subsequent damage caused by the overvoltage. A fast responding and a higher energy absorbing overvoltage protection is desired. A hybrid solution is proposed. A moderate energy absorbing device is connected in parallel with a fast responding device to complement each other. Nonlinear current-voltage (IV) characteristics of these devices enable them to least interfere with the performance of the precision ac measurement system while reducing the effects of transient overvoltage. In this paper, the causes of transient overvoltage in ac-dc measurement system are analysed and a hybrid voltage limiting solution is proposed.

Original languageEnglish
Title of host publicationFifth Conference on Sensors, MEMS, and Electro-Optic Systems
EditorsMonuko du Plessis
PublisherSPIE
ISBN (Electronic)9781510627529
DOIs
Publication statusPublished - 2019
Event5th South African Conference on Sensors, MEMS and Electro-Optical Systems, SMEOS 2018 - Skukuza, South Africa
Duration: 8 Oct 201810 Oct 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11043
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference5th South African Conference on Sensors, MEMS and Electro-Optical Systems, SMEOS 2018
Country/TerritorySouth Africa
CitySkukuza
Period8/10/1810/10/18

Keywords

  • Electrostatic discharge
  • Hybrid protection
  • P-n junction semiconductors.
  • Precision ac measurement
  • Transient overvoltage

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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