John N. Chiasson Zhong Du Burak Ozpineci Leon M. Tolbert High dynamic performance programmed PWM control of a multilevel inverter with capacitor DC sources. 6561-6568 2009 CDC http://dx.doi.org/10.1109/CDC.2009.5399861 conf/cdc/2009 db/conf/cdc/cdc2009.html#ChiassonDOT09