How to Make 1kW Sine Wave Inverter in Low Cost

In our daily life inverters has played a major role when we do not have electricity. There are different types of output waves. Mostly prefer sinewave inverter. Some of the inverters produce a square wave output, which is undesirable for inductive loads like Fans, Motors etc. Here we are going to make a 1kw sine wave inverter at Low Cost.

In this project, we are going to create a simple sinewave inverter circuit that will produce 50hz quasi-sine wave output.

How to Make a Sine wave inverter circuit

An inverter is basically an electrical power converter that converts Direct current (DC) into Alternating Current (AC). Inverters take power from the battery and supply it when there is an electricity cut.

If we are planning to make a inverter. We needed to consider these :

  • Low Battery Indicator
  • Low Battery Cut-off
  • No Load Cut -off

After collecting important hardware components, I needed to design a PCB. So, I started to design PCB using easyeda Software. It a simple software with a lot of PCB layouts and components footprints. Then I just ordered PCB from jlcpcb with an affordable cost. The quality of the PCB was quite awesome.

In this circuit, there are two parts. One is the Inverter circuit and another part is Power MOSFET Circuit. The availability of the MOSFET is an issue for me. So I decided to test my inverter circuit. I would like to work fine. The price of the inverter circuit is around less than a hundred rupees. The total cost of the circuit is too high as I planned. Because I can’t able to find a suitable transformer for this circuit.so I just test with a small 14-0-14 transformer. It works awesome. The power of the inverter is very less.it would be less than 100W. But I am happy with this inverter circuit. It would low cost and easy to make also a simple circuit.

Circuit Diagram

Original – 1kw sine wave inverter Circuit Diagram and Details: Click Here

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20 Responses

  1. This project is awesome. Please add video in this page
    Thanks

  2. ANOOP C says:

    One sine wave Inverter PCB send please

  3. ANOOP C says:

    one pcb send cheyyamo

  4. ANOOP C says:

    Gerbar file send cheyyamo

  5. Jayakumar says:

    ഒരു 12 w 100 ah battrry യിൽ ഈ inverteter വർക്ക്‌ ചെയ്യുമോ, ഓർ need 2 battery.

  6. Hi bro which type of heat sink are you using

  7. How can I contact you

  8. Can you share VR1 preset value or how to check frequency without an oscilloscope

  9. Jomon says:

    1KW sinewave inverter with 12v one battery is suitable for home.
    1. When Battery low turn on Bypass mode
    2. When Battery full charging off
    3. Overload Output- cut off
    4. Noise free
    5. Sine wave output
    These features are necessary.
    Your project excellent.
    All the best

  10. Vipin.V says:

    Your projects was excellent…
    Best of luck.

  11. Ratheesh says:

    I need Pcb 8921588915

  12. Ratheesh says:

    I need Pcb 8921588915

  13. Sabeer says:

    I am interested to make inverter I want this board

  14. Frijo says:

    How I can make a gerber file

  15. Frijo says:

    Would you make an CFL emergency lamp

  16. Hamza Hamza says:

    Indeed pcb pls send

  17. ofu abu says:

    Hi

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