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oh yeah
tanx
and these are some other questions i could make
      -why are those 2 transistors(2sc1061and 2n3055) are used to drive 2n3055 trs- enough buffers with a resistor can directly drive 2n3055s.isnt that true?
        -whats the role of those 2A diodes in the circuit?are those anti shoke diods like the ones we put on relays to prevent the relays inductor shock to relay driver transistor?but we put those diods after the relay driver transistor to prevent the shoke to collector but at this inverter they are before 2n3055s trs????
so can we use two diods before the transformators inductor in the wrong posithion to prevent trans inductors to 2n3055 transistors?
          -whats the role of those 8 ./1ohm resistors between emitters?
         

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hi
i have some theories about the shematic
in this shematic two op-amps have been used to amplify outputs.but we can use buffer gates insted of them to drive transistors/////// is that right?its so simpler

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by the way    i meant a simple electric motor

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hi audioguru
i heared from one of my friends that connecting a motor to inverter may cause to change the shape of its output signal
for example change it from its square shape to something else/Is it true? how?

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hi
could this inverters output be used for supplying an AC motor like fans or waterpomps ? if no what should be done to make it appropriate for connecting ac motors to it?/
thanks