Simulation and Analysis of Two GaN MIS-HEMT-Based Step-down Level Shifters

Junzhe Tan*, Dongyi Yang, Shiqiang Wu, Yuhao Zhu, Yaoyao Pan, Pengju Cui, Wen Liu

*Corresponding author for this work

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

Abstract

In this paper, two step-down level shifter circuit structures based on AlGaN/GaN (aluminum-gallium-nitride/gallium-nitride) MIS-HEMTs (metal-insulator-semiconductor-high-electron-mobility-transistors) are proposed. The level shifter circuits have the capability to produce voltage drop. They are used to address the challenges of anomalous operation state in the sawtooth wave generator of PWM (pulse width modulation) integrated circuit, while also mitigating the undesirable device degradation resulting from high output voltage from the comparator. Proposed circuit structures are simulated and calibrated by the ADS (Advanced Design System) platform. Additionally, calculations are carried out to analyze the principle of output voltage drop. Subsequently, the circuit output characteristics and parameter settings of these circuit structures are discussed, which offer insights and advice regarding their feasibility and the potential of step-down level shifter circuit structures for monolithically integrated GaN power converters.

Original languageEnglish
Title of host publicationProceedings of the 2023 International Conference on IC Design and Technology, ICICDT 2023
EditorsDuy-Hieu Bui
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages52-56
Number of pages5
ISBN (Electronic)9798350319316
DOIs
Publication statusPublished - 2023
Event2023 International Conference on IC Design and Technology, ICICDT 2023 - Tokyo, Japan
Duration: 25 Sept 202327 Sept 2023

Publication series

NameProceedings of the 2023 International Conference on IC Design and Technology, ICICDT 2023

Conference

Conference2023 International Conference on IC Design and Technology, ICICDT 2023
Country/TerritoryJapan
CityTokyo
Period25/09/2327/09/23

Keywords

  • AlGaN/GaN MIS-HEMTs
  • Comparator
  • Integrated circuit
  • Step-down level shifter

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