problem on calculating the ouput power of an inverter power system

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TOCHI

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I have finished building a system for conversion of DC to AC (INVERTER) power system but am having difficulties in calculating the output power..... Do i need to use P=IV?. If yes, how do i calculate the resistance of the copper wire of gauge (16 awg or 1.29mm) and hence calculate the current. I used a ratio of 1:1.5 in winding the transformer and hence the primary (gauge 16 or 1.29mm) was 18turns(12v) while the secondary (gauge 22 or 0.65mm) was 330turns (220v). I used 6 mosfets (3205).......Or is their any other way of calculating it? pls i need an urgent help. i .....
 
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you can calculat by formula
P = V*I OR P = I^2*R.
Or explain your problem a bit more.
 

Didn't you calculate the transformer before winding it? and which method did you use for the switching?
 

i calculated it.....i used a ratio of 1 is to 1.5......i wound 330turns to get 220v.......for the switching, i used 3205(mosfet).....pls can u help me?
 

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