Publication detail

Identification of Power BJT Operating Stages Based on Experimental Excess Charge Estimation

MIKLÁŠ, J. PROCHÁZKA, P.

Original Title

Identification of Power BJT Operating Stages Based on Experimental Excess Charge Estimation

Type

conference paper

Language

English

Original Abstract

The paper proposes and demonstrates an experimental waz of estimating the amount of stored charge of excess minority carriers within power BJT base and collector. This consequently allows a detailed identification of transistor operating stage. A brief device operation analysis is provided as a clear support of the measured characteristics. The method is based on determining the steadz-state stored charge at various operating conditions by integration of negative transient base current during turn-off event which deflates the stored charge. An ultimate objective of these and future experiments is an accurate interpretation and modelling of various device stages during IGBT switching process. Most of the observed phenomenons are common among a power BJT and IGBT's intrinsic BJT. As IGBT doesn't provide access to the internal base current, it is advantegous to measure and interpret the relations between stored charge and switching waveforms of power BJT first and further generalize the observations to IGBT measurements.

Keywords

IG BT, Power BJT, Bipolar semiconductor devices saturation, Minority carriers concentration, Excess charge storage, Transistor switching measurement

Authors

MIKLÁŠ, J.; PROCHÁZKA, P.

Released

12. 5. 2021

Publisher

IEEE

Location

Gliwice, Poland

ISBN

978-1-7281-5660-6

Book

2021 IEEE 19th International Power Electronics and Motion Control Conference (PEMC)

ISBN

2473-0165

Periodical

2021 IEEE 19th International Power Electronics and Motion Control Conference (PEMC)

State

Republic of Poland

Pages from

615

Pages to

621

Pages count

7

URL

https://ieeexplore.ieee.org/document/9432605

Full text in the Digital Library

http://hdl.handle.net/11012/203273

BibTex

@inproceedings{BUT171671,
  author="Ján {Mikláš} and Petr {Procházka}",
  title="Identification of Power BJT Operating Stages Based on Experimental Excess Charge Estimation",
  booktitle="2021 IEEE 19th International Power Electronics and Motion Control Conference (PEMC)",
  year="2021",
  journal="2021 IEEE 19th International Power Electronics and Motion Control Conference (PEMC)",
  pages="615--621",
  publisher="IEEE",
  address="Gliwice, Poland",
  doi="10.1109/PEMC48073.2021.9432605",
  isbn="978-1-7281-5660-6",
  issn="2473-0165",
  url="https://ieeexplore.ieee.org/document/9432605"
}