The Normal voltage balancing property of capacitor voltage has an attractive choice of an flying capacitor converters. The study of H-bridge flying capacitor converter with 5, 7 and 9 levels are carried out and to increase the voltage levels falls the Total Harmonic Distortion. By using phase shifted carrier pulse width modulation technique (PSCPWM) the root mean square output voltage is controlled. For effective output voltage control, fuzzy controller is used. Fuzzy controllers are designed for the different voltage levels of H-bridge flying capacitor multilevel converter to control the Root Mean Square (RMS) output voltage. The Performances of the fuzzy controllers with multilevel converters of H-bridge flying capacitor for different levels are studied. © Springer Nature Singapore Pte Ltd. 2017.