Switching loss reduction of MOSFET using switching assist circuit

descriptionPublicationkeyboard_double_arrow_right Article , Conference object 01 Mar 2015Publisher:IEEEJournal:2015 IEEE International Conference on Industrial Technology (ICIT)

Authors: Toshihiko Noguchi; Munehiro Murata;

doi: 10.1109/icit.2015.7125260

Switching loss reduction of MOSFET using switching assist circuit

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Abstract

This paper describes a new high-efficiency and high-speed switching method of a MOSFET using a switching assist circuit fed by the gate drive power supply. By applying the proposed circuit to a chopper and an inverter, a turn-off time of the MOSFET can be effectively reduced, which allows a higher-frequency operation and reduction of the turn-on loss. In the case of the application to the inverter, the total efficiency can be improved by 14.8 points in the low-load range owing to the reduction of the turn-on loss of the MOSFET.

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Shizuoka University
Japan

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