Now a day’s air pollution and global warming are on alarming stage in the world; therefore, Hybrid Electric Vehicles (HEV) are very much useful and desirable. For electric vehicles, three-phase voltage-fed inverters almost exclusively used for induction motor drives. At present, the PMOSFETs based inverter is most attractive, accepted by many modern EVs. Microcontroller based voltage source inverter for HEV’s are the essential component. The purpose of this article is to give idea of designing Voltage source inverter(VSI) using Power MOSFETs and Microcontroller ATMega16 and comparison with current source inverters(CSI) The output waveforms of the designing VSI under 120 degree conduction mode match the theoretical modal. The developed voltage source inverter is acceptable for all type of electric motor drives in various road loads used in HEVs.

Keywords : HEV, ICE, PMOSFET, MICROCONTROLLER, ATMega16