Hi,

I want to design a LED driver with one specification. "can withstand 300VAC surge for 5 seconds".

It is a constant current drive. current is 250mA. LED driver is driven through AC mains of 230V/110V AC. Output power = 18 watts. Which MOV can do this work? Or is there any other design that I need to implement?

how to make a selection? any calculation sheet with an example will be of a great help.
Thank you,
rahul shah

 

Hello,

When you intend to drive the led directly from the mains, you have choosen the wrong forum.
The Terms of Service section 6 do not allow this.

Is there an isolation transformer used?

Bertus