5KW-10KW transformerless inverters

[vimalkhanna]

I want design help to develop a transformerless output for 230VAC/50Hz pure sine Inverter with 24VDC/48VDC/100VDC input from batteries .
The base 5Khz to 50KHz oscill. pulse signals could be PIC16 based or ATMEL processor generated .

 

[FvM]

Timing generation will be one of the lesser problems, I assume. I don't think that it's a good idea, to design the inverter strictly transformerless. You would want to utilize a medium or high frequency transformer for effective voltage conversion.

 

[andre_luis]

There are some SMPS without use of transformers ( like Buck converter ); just the Inductor are used to performs reactive charge on capacitors. However like mentioned by FvM is not a recomended implementation and it is unnusual.

Take a look here to get some particular guidance :
SMPS Switching Power Supply Topologies: Comparison and Selection

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[Orson Cart]

You have chosen quite a significant design - I suggest engaging professional help if you wish to see a result inside 18 months, Regards, Orson Cart.