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Do you have a schematic? How would we know what L1 & L2 do in the circuit.
At lease it's a reasonable power rating this time.
This will do the job, it's pure sine wave 200VA continuous but can do 275VA peak.
**broken link removed**
It'll cost you more to build a poor inverter than to buy a good one.
Is that your design?.....I don't see any L1 or L2.
Do you meand the inductance of the Transformer?
the output voltage must be 220V AC...but in my circuit it is 100 mV..how can i fix that mistake?please tomorrow time will be over....i need to design it today..could somebody draw it for me..?
Hi baggio,
calculating the correct value of transformers is the job of those who produce them.
You plan to use 12V in and 220V out. Your design is a pure square wave inverter, so don't connect loads which are not designed for square wave AC.
The desired power output is 20W, which is 1.66A at 12V. Reverse a 9V/2.5A transformer with a center tap on the 9V-side. The first losses involved are the forward voltage drops of the 2N3055 of 0.7V. The second losses occur by the alternating magnetic field.
So using a 9V transformer will bring you pretty close to the desired output voltage.
Boncuk