Need of low cost universal power supply

[siddarth.ghaste]

Need of low cost universal power supply circuit diagram

Hi,
Please provide me low cost 20V to 220V AC/DC Power supply circuit diagram ,current may be 50mA.Please help.

 

[tpetar]

Hi Siddarath.ghaste,

There is few examples with modified sine :

Měnič 12V / 230V 50Hz s modifikovanou sinusovkou
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Switching (transformerless) DC/AC 12V/230V 150W modified sine wave inverter
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[siddarth.ghaste]

Thank you....