Really the above project of Sine Wave Inverter has got viral. I have seen some guys posted the project on their blog claiming it designed by themselves. Being an electronics hobbyist, I bought the technology from a person who, after getting payment made a long dilly dally and finally mailed the circuit and code. But unfortunately the project did not work. I was totally cheated. However, based on tutorial provided by Tahmid, a member of this forum, and accessing other related articles in the internet, I took up to create a code using mikroC compiler that suits the same circuit. The inverter is working fine. The battery charging function is also fine. I have observed a clear sine waveform at the output which is filtered by 2.5mfd capacitor. Of course, there is an issue of output regulation. I am trying best to overcome the problem. Once it is fixed, I can send you the Hex. code.
NB: Plese see the bootstrap capacitor (C9 & C12) has been shown as 220u which need to be replaced by 4.7u.