DocumentCode :
2664248
Title :
A Low-Cost Gate Driver Design Using Bootstrap Capacitors for Multilevel MOSFET Inverters
Author :
Graczkowski, J.J. ; Neff, K.L. ; Kou, X.
Author_Institution :
Dept. of Electr. Eng., Wisconsin Univ., Platteville, WI
Volume :
2
fYear :
2006
fDate :
14-16 Aug. 2006
Firstpage :
1
Lastpage :
5
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
Keywords :
MOSFET; capacitors; costing; driver circuits; invertors; power semiconductor devices; bootstrap capacitors; diode; floating voltage source; gate driver; multilevel MOSFET inverter; power semiconductors; voltage source inverter; Capacitors; Costs; Driver circuits; Inverters; MOSFET circuits; Packaging; Power supplies; Switches; Switching circuits; Voltage; Bootstrap Capacitor; Capacitor Voltage Balancing; Floating Voltage Source Inverter; Flying Capacitor Inverter; Gate Driver; MOSFET Inverter; Multilevel Inverter; Pulse-Width Modulation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0448-7
Type :
conf
DOI :
10.1109/IPEMC.2006.4778160
Filename :
4778160
Link To Document :
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