A STEP-UP SWITCHED-CAPACITOR MULTILEVEL INVERTER WITH SELF VOLTAGE BALANCING
- The objective of this article is to propose a new inverter topology for multilevel voltage output.
- This
topology is designed based on switched-capacitor technique and the number of
output levels is determined by the number of switched-capacitor cells.
- Only one
dc voltage source is needed and the problem of capacitor voltage balancing is
avoided as well.
- This structure is not only very simple and easy to be extended
to higher level, its gate driver circuits are also simplified because the
number of active switches is reduced.
- Operational principle of this inverter
and the targeted modulation strategies are presented, and power losses are
investigated as well.
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