For last few days I m trying to resolve about how I should help you. Creating a sine wave is not a easy matter.
The link I posted in my last post is not so convenient. It will be hard to explain.
.
Well, there are lot of ways to create sine waves. But it is upto you which way you can follow- creating a pulse width modulation waves or simply a square wave and pass it with a low pass filter. Or creating a virtual sine wave with the help of a microcontroller, passing through a couple of power mosfet and then boosted with a transformer.
By the way, making a sine wave inverter is much costlier, risky, and of full of headache. If you wish to make it at home, we can proceed.
---------------------------
If you use a low pass filter in square wave, the below circuit can help.....
Its waveform is..
I remade this circuit few months ago. It has a drawback that 1H inductor and 5uF capacitors are of larger value. You can use some lower values also, but the output will not be a PURE sine.
------------------
And if you use a microcontroller, then refer to the pdf below...