SPWM and H-bridge circuit

[sriblue7]

Hi all....
I have designed a SPWM based inverter.I have attached the schematic of DC-AC section alone.
Can somebody please tell me whether the design is correct and also point out the mistakes i have done.
please tell me how to design the output filter(PWM frequency= 31.250k).
How can i view the output in proteus?i am not able to connect the oscilloscope between the two sources of the top MOSFET's(as oscilloscope measures with respect to GND).
I have included a dead time of 1us between the square wave control signals?is it enough to prevent shoot-through problem?
i have also included the program file of the microcontroller(atmega48p).Also check whether the program is correct?
Thanks in advance....

View attachment SPWM.txt

 

[Tahmid]

How can i view the output in proteus?i am not able to connect the oscilloscope between the two sources of the top MOSFET's(as oscilloscope measures with respect to GND).

Connect channels A and B to the sources of the MOSFETs. In the oscilloscope controls under channel A, press the buttons "INVERT" and "A+B". Then, you can view the signal.

 

[sriblue7]

Thank u Tahmid...
Regarding the design is it ok or should i make any modifications?
How to design the output filter?

 

[Tahmid]

It would be easier to check if you uploaded the *.DSN file.

For the output filter, use LC filter, not RC filter.

 

[sriblue7]

Please go to the following link for the schematic.

**broken link removed**

 

[Tahmid]

Can you upload the *.hex file as well?

 

[sriblue7]

Here is the hex file..
**broken link removed**