CRo- purpose of Slope coupling

Discussion in 'General Electronics Chat' started by aamirali, Mar 6, 2013.

  1. aamirali

    Thread Starter Member

    Feb 2, 2012
    What is the purpose of slope coupling AC or DC in CRO.
    Also in trigger, there are three option, Edge, pulse & video. What is purpose of Video.

    I want to learn all the operations of CRO.What book should I read or internet notes
  2. crutschow


    Mar 14, 2008
    The slope selection is whether you want to trigger on the rising edge of falling edge of the waveform.

    AC/DC selection is whether you want to trigger on a fixed DC level of the waveform or just the AC part of the waveform independent of its DC level.

    Video trigger is optimized to allow stable triggering with composite video waveforms (particularly old NTSC or PAL video signals) which include the sync signal. It likely has a sync separator circuit to allow triggering only on the sync.
  3. thatoneguy

    AAC Fanatic!

    Feb 19, 2009