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Design Consideration of a High Precision and Stability Linear Current Source

  • He Liu
  • , Donglai Zhang
  • , Zicai Wang*
  • , Hua Zhang
  • , Qing Liu
  • *Corresponding author for this work
  • School of Astronautics, Harbin Institute of Technology
  • Harbin Institute of Technology Shenzhen
  • Harbin Institute of Technology
  • Shenzhen Academy of Aerospace Technology

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

Abstract

In this paper, the design considerations of a high precision and stability linear current source is presented. Firstly, to evaluate the precision, low-frequency equivalent circuit of the single linear current path is established and the strict output current equation is derived accordingly. Sensitivity analysis is also conducted to identify how much variations in the values for each parameter will impact the results for the output current. Secondly, to evaluate the stability, high-frequency equivalent circuit is established at the same time and compensation network is composed consequently. A RL parallel damping filter is also added to improve the performance of PSRR of the linear unit. Finally, computer simulations results are shown close agreement between modelled estimates and simulated values. Monte Carlo simulation is also used during the analysis and simulations by varying all of the parameter values with respect to tolerance and distribution type to identify the worst case precision values in real applications.

Original languageEnglish
Title of host publication2019 4th International Conference on Power and Renewable Energy, ICPRE 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages173-179
Number of pages7
ISBN (Electronic)9781728145747
DOIs
StatePublished - Sep 2019
Externally publishedYes
Event4th International Conference on Power and Renewable Energy, ICPRE 2019 - Chengdu, China
Duration: 21 Sep 201923 Sep 2019

Publication series

Name2019 4th International Conference on Power and Renewable Energy, ICPRE 2019

Conference

Conference4th International Conference on Power and Renewable Energy, ICPRE 2019
Country/TerritoryChina
CityChengdu
Period21/09/1923/09/19

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • high-frequency equivalent circuit
  • high-precision
  • linear current source
  • low-frequency equivalent circuit
  • stability

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