Closed-Loop Gate-Sensing Active Driver IC with Adaptive Delay Compensation Technique for Silicon Carbide Power MOSFETs

Chia Wei Kuo, Ting Wei Wang, Hao Chung Kuo, Chang Ching Tu, Po Hung Chen

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

Abstract

To permit an optimal tradeoff between current overshoot and switching losses (ELoss) during the switching on of Silicon Carbide power MOSFETs (SiC), an active gate driver (AGD) IC is proposed in this paper. This AGD IC incorporates a gate-sensing technique without the requirement of external sensing components and adjusts the driving capability during turn-on, thereby suppressing current overshoot, oscillation, and electromagnetic interference (EMI) issues. Additionally, the proposed driver IC compensates for circuit propagation delay to enhance effectiveness in suppressing current-induced EMI. The proposed AGD is validated by the 0.18 μm HV BCD process. It achieves a remarkable 40.5% reduction in switching loss compared to the conventional gate driver (CGD) under similar current overshoot conditions. These results underscore the significant advancements the AGD offers in enhancing the efficiency and reliability of SiC-based power management systems.

Original languageEnglish
Title of host publication2024 36th International Symposium on Power Semiconductor Devices and ICs, ISPSD 2024 - Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages462-465
Number of pages4
ISBN (Electronic)9798350394825
DOIs
StatePublished - 2024
Event36th International Symposium on Power Semiconductor Devices and ICs, ISPSD 2024 - Bremen, Germany
Duration: 2 Jun 20246 Jun 2024

Publication series

NameProceedings of the International Symposium on Power Semiconductor Devices and ICs
ISSN (Print)1063-6854

Conference

Conference36th International Symposium on Power Semiconductor Devices and ICs, ISPSD 2024
Country/TerritoryGermany
CityBremen
Period2/06/246/06/24

Keywords

  • IC
  • SiC
  • active gate driver
  • current overshoot
  • delay compensation
  • gate-sensing
  • oscillation

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