3000 watt power inverter 12V DC to 230V AC

Circuit Diagram | 3000 watt power inverter 12V DC  to  230V AC

inverter circuit schematic
Circuit Diagram of 3000 watt power inverter 12V DC to 230V AC

Fig. 2: Sine-wave voltage and conventional square wave voltage with both 230 Volt rms

Fig. 3: Square wave voltage with duty cycle 25% for 230 Volt rms ("modified sine")

PCB Layout:3000 watt power inverter

Component Placement: 3000 watt power inverter

3000w inverter pcb 2

fig.: output voltage with no load or inductive load.

fig.: resistor 0,001 Ohm made of high-grade steel sheet metal

Control electronics |12V DC  to  230V AC

fig.: control electronics on strip hole plate (previous version) and PCB of the "professional edition"

Assembly of the mosfet-transistors on the heat sink | 3000 watt power inverter

fig.: heat sink, mosfet transistors, connections.

Final assembly | 3000 watt power inverter 12V DC  to  230V AC

fig.: 1500 VA inverter with 2 parallel transformers and 1000 VA inverter


  1. Alok
    Thank s friend a lot.Please tell that how much no of turns in both primer y and secondary side of the transformer and how will be the tapping in turns.

  2. Very, very good!!!. THX for sharing, im studing this with my partners. Greetings.

  3. good job my friend, keep going.
    i think ... is it better if you sell the pcb..
    and we just buy it from you.

    best regard's

  4. very good... i am working on this now. But i did not understant heat sink circuit diagram. Could you please express me the detail? I will be greatfull if you inform me about that. Thanks for now...

    1. "Heat Sink" it is used to keep cool Integrated Circuit in a manner. It is basically a Aluminium alloy. and there don't need any circuit in that perspective. Just attest at lest a minimum size aluminum allow. For that you have to know that how to determine perfect size Heat Sink.