1kw dc to ac inverter

i need a circuit for a 1kw dc to ac inverter to power my project in the remote area of my country

Try this:

https://www.electronics-lab.com/projects/power/033/index.html

It is only 500w but it is a start, you could beef it up a bit for 1000w.

JimB

That's plans for a low freq converter. The transformer would be impractically large. Normally you'd use a high freq transformer to make a HV DC supply then switch the DC supply back and forth to make AC output out of it.

Generally commercially made inverters are far cheaper than anything you could make, and more reliable too.

There's a lot more than simple schematics here too. At 1kw you're talking about running 80 amps through traces so busbars may be necessary. Getting the most out of a transformer at the best frequency, also a trick. In practice several transformers will be necessary.

There is a More Efficient Power Inverter design on my website, at the link below. Its Mosfet outputs.

But as "Oznog" Pointed out, the Current from the battery becomes really High and the transformer becomes really large.

Definately Possible, But Not Very Practical at 1 kilowatt.