[SOLVED] 500va modified sine wave smps inverter

[--BawA--]

Hii
I have to make a modified sine wave inverter.
I have generated 311vdc successfully.now my aim is to convert this high voltage DC bus into MODIFIED SINE WAVE..
I am comfartable with mcu as well as anyother analog ic. So plz give me idea how to start with??

 

[--BawA--]

if i drive my hbridge circuit by modified sine wave (quasi) ,will it work,? i mean first of all i will turn on my one mosfet pairs diagonally then turn off all the mosfet ,after that turning on the other pair of mosfet diagonally.?
will it work?

 

[--BawA--]

i have successfully designed modified sine wave inverter and it's working now ,,now i'll work on pure sine wave ..

 

[BradtheRad]

This simulation shows (theoretically) the easiest way to arrange the transistors/mosfets, and what waveforms should be applied to the bias terminals.



The control signal must reach within 0.6V of the high and low supply rails.

There is no wasted current.

It is also possible to arrange the transistors with NPN and PNP reversed, but then it will be tedious to adjust the bias waveforms properly.