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Design of A Silicon and Wide-Bandgap Device Based Hybrid Switch for Power Electronics Converter

Deshpande, Amol Rajendrakumar
http://rave.ohiolink.edu/etdc/view?acc_num=osu1461238625

Abstract Details

2016, Master of Science, Ohio State University, Electrical and Computer Engineering.
A high efficiency and high power density power electronics converter would deliver more power at low weight and volume. This is highly desirable for applications such as More Electric Aircrafts. A silicon (Si) IGBT based converter cannot achieve this goal due to limited switching frequency of 20 kHz. On other hand, fast switching wide-bandgap (WBG) devices such as silicon carbide (SiC) MOSFET/JFET or Gallium Nitride (GaN) HEMT cannot directly replace Si IGBT due to limited die sizes and high costs. Thus, a hybrid switch (HyS) with paralleled large Si IGBT die and small WBG die is proposed for hard switching converters. It has inherent low conduction loss. Innovative gate control allows low switching loss and switching frequency as high as 78 kHz in HyS based converters. This proportionally reduces passive components’ size. A parametric study is done to determine a boundary condition for the best gate control option from possible options in the presence of the parasitic interconnect inductance. A Si/WBG die size ratio optimization algorithm is proposed, with this the thermal management system can be further relaxed to achieve the goal of low weight and volume.
Fang Luo (Advisor)
Mahesh Illindala (Committee Member)
Electrical Engineering

Recommended Citations

Citations

  • Deshpande, A. R. (2016). Design of A Silicon and Wide-Bandgap Device Based Hybrid Switch for Power Electronics Converter [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1461238625

    APA Style (7th edition)

  • Deshpande, Amol. Design of A Silicon and Wide-Bandgap Device Based Hybrid Switch for Power Electronics Converter. 2016. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1461238625.

    MLA Style (8th edition)

  • Deshpande, Amol. "Design of A Silicon and Wide-Bandgap Device Based Hybrid Switch for Power Electronics Converter." Master's thesis, Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1461238625

    Chicago Manual of Style (17th edition)

osu1461238625
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© 2016, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.