NDLI: A Low-Cost Gate Driver Design Using Bootstrap Capacitors for Multilevel MOSFET Inverters

Content Provider	IEEE Xplore Digital Library
Author	Graczkowski, J.J. Neff, K.L. Kou, X.
Copyright Year	2006
Description	Author affiliation: Dept. of Electr. Eng., Wisconsin Univ., Platteville, WI (Graczkowski, J.J.; Neff, K.L.; Kou, X.)
Abstract	Multilevel inverters require a large number of power semiconductors. The gate driver for each power semiconductor requires its own floating or isolated DC voltage source. Traditional methods on meeting the requirement are expensive and bulky. This paper presents a gate driver design for floating voltage source type multilevel inverters. Bootstrap capacitors are used to form the floating voltage sources in the design, which allows a single DC power supply to be used by all the gate drivers. Specially configured diode plus the proper charging cycles maintain adequate capacitor voltage levels. Such a simple and low cost solution allows user to utilize the easy accessible single-channel gate drivers for multilevel inverter applications without the extra cost on the bulky isolated DC power supplies for each gate driver. A prototype 3-cell 8-level floating voltage source inverter using the method illustrates the technique
Sponsorship	China Electrotechnical Soc. IEEE Power Electron. Soc
Starting Page	1
Ending Page	5
File Size	4902874
Page Count	5
File Format	PDF
ISBN	1424404487
DOI	10.1109/IPEMC.2006.4778160
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-08-14
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Capacitors MOSFET circuits Inverters Voltage Driver circuits Power supplies Costs Switching circuits Packaging Switches Flying Capacitor Inverter Multilevel Inverter Bootstrap Capacitor Pulse-Width Modulation Gate Driver MOSFET Inverter Capacitor Voltage Balancing Floating Voltage Source Inverter
Content Type	Text
Resource Type	Article

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