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Calculating H bridge Module Power for inverter

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btahir90

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Hello Every one,

I am confused to calculate power of my inverter,Here are the Details

Circuit is of Pure Sine Wave Dc to AC type using SPWM technology.
I am using a H Bridge configuration.
There are three heat sink, Large which is connected with Battery + wire have 16 FETs, other 2 heat sink which are connected with transformer have 8 FETs Each in parallel. Image of datasheet of FET used is attached below

IRF.png

1) My question is what is peak power of my module at 48VDC battery input (at 48VDC my module output to transformer is 28V AC RMS.)

2) What factor of data sheet is used to calculate power(is it Max Power dissipation of Each FET)?

3) What is max safe battery input voltage that can be supplied to this module if i use similar FETs(like it has max input 100V, For 12V battery 7V AC RMS output of Module)?
 

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