Withstand 300V AC Surge for 5 Seconds

Discussion in 'The Projects Forum' started by Rahul Shah, Jan 8, 2015.

  1. Rahul Shah

    Thread Starter New Member

    Nov 4, 2014
    5
    0
    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
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,649
    2,348
    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
     
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