Uneven temperature effect evaluation in high-power IGBT inverter legs and relative test platform design

Haoze Luo*, Wuhua Li, Xiangning He, Francesco Iannuzzo, Frede Blaabjerg

*Corresponding author for this work

Research output: Contribution to journalConference article in JournalResearchpeer-review

5 Citations (Scopus)

Abstract

This paper presents a high-power IGBT testing platform for uneven temperature conditions and its design criteria. Considering the influence of layout parasitic parameters on the measurement results, commutation rules and independent junction temperature control, a universal high-power switching characterization platform is built and operated. Importantly, it is capable of 3.6 kA current level test requirement, which can cover the largest current level for the state-of-the-art IGBT modules. To improve the test accuracy of double pulse test method, a compensation algorithm is proposed to eliminate the circuit power loss under high current test conditions. Moreover, in order to simulate the uneven junction temperature effects occurring in real life, the junction temperatures of inspected IGBT and freewheeling diode are controlled independently. Quantitative analyses of the switching characteristics for junction temperatures up to 125 °C are performed.
Original languageEnglish
JournalMicroelectronics Reliability
Volume76-77
Pages (from-to)123-130
Number of pages8
ISSN0026-2714
DOIs
Publication statusPublished - Sept 2017
Event28th European Symposium on Reliability of Electron Devices, Failure Physics and Analysis (ESREF) - Bordeaux, France
Duration: 25 Sept 201728 Sept 2017

Conference

Conference28th European Symposium on Reliability of Electron Devices, Failure Physics and Analysis (ESREF)
Country/TerritoryFrance
CityBordeaux
Period25/09/201728/09/2017

Keywords

  • High power compact IGBT
  • Insulated gate bipolar transistor (IGBT)
  • Junction temperature simulation method
  • Switching characteristics platform

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