1. Rashid, M. H. 1993.Power Electronics,, 2nd ed. 320–323. New Jersey: Prentice Hall.
2. A novel orthogonal-vectors-based topology of multilevel inverters
3. A new medium-voltage PWM inverter topology for adjustable-speed drives
4. Henning, P. H., Fuchs, H. D., Le Roux, A. D. and Mouton, T. 2005. “Development of 1.5 MW, seven level series-stacked converter as an APF and regeneration converter for DC traction substation,”. Proceedings of the 36th IEEE Specialist Conference on Power Electronics. June162005, Recife, Brazil. pp.2270–2276.
5. Three-level inverter configuration cascading two two-level inverters