Dear Sir,
Yes I want to make a transformerless inverter 12v to 220v for use in photovoltaic applications. In the second circuit there are 4 IGBTs instead of MOSFETs.
Dear tpetar,
Kind regards,
Is it possible you look at circuit number one (PIC16F877A) and tell me how to connect pulse transformer to drive the IGBTs of circuit 2.
Dear Sir,
Yes I want to make a transformerless inverter 12v to 220v for use in photovoltaic applications. In the second circuit there are 4 IGBTs instead of MOSFETs.
hello tpetar,
The language shown on urs given diagram is understandable,can u plz write it in english so that one can be benefited or plz tell about to translate it.thanks
What output voltage you want and what is your supply voltage? The supply source is Photovoltaic panels or what?Yes I want to make a transformerless inverter 12v to 220v for use in photovoltaic applications.
youcef2010,
In post #11 in your circuit you showed 170 volts input to the MOSFETS, is this input voltage you are using? If yes what output voltage you want? And which form, AC or DC?
Your question is confusing (atleast to me) make it clear first.
In your post #5 you said
What output voltage you want and what is your supply voltage? The supply source is Photovoltaic panels or what?
If your input is 12 volts and you want 220 volts, how is it possible to get 220 volts without use of transformer?
Your problem seems to be swithing sequence. Ensure when lower left fet is on then right upper mosfet should be on and when right lower fet is on then left upper fet should conduct.but when I change the voltage of collectors
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