inverter circuit 500va design
Basic Requirement for design as as follows:
Consider the DC voltage of operation. Say For example 12V, The peak voltage that can be availabe across the mosfets is 30V, so safely consider a mosfet of 50V Vds. remenber that Lower the Vds better is the Rds and hence the losses in the MOSFET.
the losses in the msofet can be calculated ny OHMs law and considering the Rds vave and the peak current thru the mosfets.
Good Mosfets are IRF3205. IRF3710, IRF2807 Etc with very low Rds.
Depending on the frequency of switching you alos need to consider a good anf fast mosfet driver, IR2110 or MIC4427 can be used for better result. Ensure that the mosfet driver has as good energy storage capacitor with low ESR as close to the device as possible for best operation. The drive output track length from IC to MOSFET gate should be as short as possible.
Should you need any more assistance, please post your quiry. it would be better you post your schematic.
I do not recommend any 600V nosfet for 1000VA application, However if you are doing a DC TO Dc Converter metohd for the inveter , may consider 600V mosfet in output bridge.
HMN