Converter with input range 10VDC…250VDC and also 20VAC ...253VAC

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I am looking for a chip and a design to bild up a converter frome a wide input range of 10VDC…250VDC and also 20VAC ...253VAC (one input!) to a fix single output voltage of about 10...30VDC (30V would be the best). Output power shall be at least 5W. Input-Output shall be isolated!

Thanks for any information!


I am afraid to say that we do not have any chip that could work with 10V DC input. However I can suggest you one design expample which was designed to work from 18VAC to 265VAC. Please take a look at following design idea.