The pulse sequence required for an NPC Inverter for 3 level and 5 level output is identified and is generated SPWM technique . The same pulses are generated using DSP F28335 kit and validated using a Digital Storage Oscilloscope. This project analyses multicarrier PWM methods for a single phase and three phase three level and five-level Neutral Point Clamped inverters. The advantages of a DSP based SPWM generation over conventional SPWM pulse generation are also studied. Using multilevel inverters, we get an output more sinusoidal, and hence having less harmonic content. But since the number of devices is more, the losses will be more compared to normal inverters, which can be reduced by employing space vector based PWM techniques or sinusoidal PWM based techniques. In this project, a multi-carrier based control technique is developed by the insertion of a zero voltage portion between every two half cycles.