전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2011년도 추계학술대회
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- Pages.3-4
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- 2011
Floating Power Supply Based on Bootstrap Operation for Three-Level Neutral-Point-Clamped Voltage-Source Inverter
- Nguyen, Qui Tu Vo (Dept. of Electrical Engineering, Yeungnam University) ;
- Lee, Dong-Choon (Dept. of Electrical Engineering, Yeungnam University)
- 발행 : 2011.11.25
초록
This paper presents a survey of floating power supply based on bootstrap operation for three-level voltage-source inverters. The floating power supply for upper switches is achieved by the bootstrap capacitor charged during on-time of the switch underneath. Hence, a large number of bulky isolated DC/DC power supplies for each gate driver are reduced. The Pspice simulation results show the behavior of bootstrap devices and the performance of bootstrap capacitor voltage.
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