Shift high voltage pulse to TTL pulse?

Discussion in 'The Projects Forum' started by braxat2000, Mar 21, 2012.

  1. braxat2000

    Thread Starter New Member

    Feb 14, 2011
    2
    0
    Hi,
    I'm trying to solve the following problem.
    I have an input of 70V 4 usec pulse, which I need to convert to similar width but of TTL levels (input the high level pulse into a PIC controller).
    How can this be achieved?
    I'm new at electronics, so I'm probably missing some basic knowledge..

    Thanks in advance,
    Brx.
     
  2. MrChips

    Moderator

    Oct 2, 2009
    12,446
    3,362
    Use two resistors to create a voltage divider and a diode clamp to +5V (or what ever voltage your MCU is using).
     
  3. rfredel

    New Member

    Jan 23, 2011
    25
    3
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