Multilevel inverters have gained significant attention in recent years due to their ability to generate high-quality output waveforms with reduced harmonics. The carrier-based PWM technique is widely employed to control the switching of power devices in multilevel inverters. This paper proposes a single phase multi-level inverter that uses the carrier base PWM techniques, summarizes the key concepts, advantages, challenges. The behaviour of the grid tied inverter while delivering a tightly controlled current is injected to the grid is studied in this work.