A high-efficiency super-junction MOSFET based inverter-leg configuration using a dual-mode switching technique

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Abstract

High-efficiency power converters have benefits of minimizing energy consumption, reducing costs, and realizing high power densities. The silicon super-junction MOSFET is an attractive device for high-efficiency applications. However, its highly non-linear output capacitance and the reverse recovery properties of its intrinsic diode must be addressed when used in voltage source converters. A dual-mode switching technique operating in conjunction with intrinsic diode deactivation circuitry is proposed in this paper. The technique is demonstrated in an 800-W inverter-leg configuration operating from a 400-V DC voltage rail and switching at 20 kHz. Intended applications include machine drives. The full-load efficiency reaches approximately 98.7% and no forced cooling is needed.

Original languageEnglish
Pages2467-2474
Number of pages8
DOIs
Publication statusPublished - 27 May 2019
Event2019 IEEE Applied Power Electronics Conference and Exposition - Anaheim Convention Center 800 W Katella Ave, Anaheim, CA 92802, Anaheim, United States
Duration: 17 Mar 201921 Mar 2019
http://www.apec-conf.org/

Conference

Conference2019 IEEE Applied Power Electronics Conference and Exposition
CountryUnited States
City Anaheim
Period17/03/1921/03/19
Internet address

Keywords

  • control
  • gate driver
  • inverter
  • MOSFET
  • super-junction
  • power converters

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