Abstract
In this paper we discuss about the Topologies of various multi level inverters such as diode clamped, flying capacitor and cascaded H-bridge with their concepts are discussed. Modulation techniques such as space vector PWM, selective harmonic elimination and sinusoidal PWM are presented and their applicability for the different topologies is also discussed in this paper also we disscuss about Switched mode DC to AC inverters produce a sinusoidal AC output voltage whose magnitude and frequency can be controlled (Kajaer et al 2005). They are widely used in the area of AC induction motor drives. Half bridge inverter is the simplest topology which produces the two level square wave output voltage waveform.
Keywords: DC to AC inverter, PWM, DCMLI.
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