scr

Discussion in 'General Electronics Chat' started by ohorit, Mar 8, 2008.

  1. ohorit

    Thread Starter Member

    Mar 8, 2008
    12
    0
    i want to know 3 things.if anyone can help me i will be so thankful.
    1.why scr does not latch in ac circuit
    2.how to control high voltage using scr
    3.how to control load current using scr
     
  2. S_lannan

    Active Member

    Jun 20, 2007
    247
    2
  3. ohorit

    Thread Starter Member

    Mar 8, 2008
    12
    0
    no result..i looked at them...they are not giving my ans clearly
     
  4. S_lannan

    Active Member

    Jun 20, 2007
    247
    2
    for the first question i'd say it would be good to post the circuit, the question is worded in a tricky way.

    for the second question controlling high voltage is no different from controlling low voltage except you would use a high voltage scr.

    for the third question i'd say the scr doesnt really control current it simply conducts at a set part of the input waveform which in turn will change the average current and voltage delivered to the given load.

    i was aware that the given text didn't directly answer you questions but i thought it would be easier to come to a conclusion if you knew the theory of the device in question.

    hope this helps
     
  5. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    Here is a link to the AAC ebook on the topic of SCRs.

    hgmjr
     
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