Pure Sine wave Inverter Implementation Methodology

Nowadays in Pakistan, the load shedding of electricity has increased so to get rid of it people are using the solar panel, ups, etc. Most of the household ups in Pakistan are not pure sine wave they are square or quasi-sine wave inverter. As a sine wave has a lot of benefits over the square and quasi-sine wave inverter so I am going to tell you all about pure sine wave inverter.
So here is a block diagram.

From Microcontroller sinusoidal PWM is generated. These  SPWM is given to the MOSFET driver and then to the MOSFET bridge circuit. We are not using a transformer for step up this 12-volt ac instead we are using dc 310 volt so we will have 220 ac volt at the output of bridge circuit.LC filter is used to remove harmonics at the output. and finally, we'll have sine wave at the output

 H-Bridge:
In pure sine wave inverter, 311 volt is used as an input voltage supply from dc to dc converter using push-pull topology to H-Bridge. Control signals are generated through microcontroller which drives the MOSFET. H Bridge is used to generate a positive and negative cycle of AC voltage. H bridge switches selection also depend on the power rating of power inverter
LC Filter:
The output of the H bridge is fed to the LC filter to remove harmonics from the output. Neat and clean sine wave output can be obtained by using a proper LC filter.

For it's schematic and working and its component go for this link 

Pure Sine wave Inverter Implementation Methodology

Pure Sine Wave Inverter Pcb Schematic and Components Name

PWM Generation Using ATMEGA16 Microcontroller code

SG3525 PWM Voltage controlled IC

Pure Sine Wave Inverter Project Video