lcc resonance converter

Discussion in 'General Electronics Chat' started by karas, Aug 6, 2016.

  1. karas

    Thread Starter Active Member

    Sep 8, 2011
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    upload_2016-8-6_10-14-52.png
    I am try to do simulation for LCC converter ,the wave form on R4 should be high frequency(100khz) with envelop of sine wave,but i can not get it with simulation so what i miss , and also this circuit has output of 24vdc and io=5A so can someone help me with the simulation of this circuit
    tht input is=90-264 vac upload_2016-8-6_10-14-52.png
     
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  2. Alec_t

    AAC Fanatic!

    Sep 17, 2013
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    Your V1 settings are way off. Try setting V1 as PULSE(0 5 0 10n 10n 5u 10u).
     
  3. karas

    Thread Starter Active Member

    Sep 8, 2011
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    Thanks so much,i did try and at the off time is not going to zero and is ringing
    upload_2016-8-6_11-20-19.png
     
  4. Alec_t

    AAC Fanatic!

    Sep 17, 2013
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    Not surprising, with C4,L3,C3,L1 present.
     
  5. karas

    Thread Starter Active Member

    Sep 8, 2011
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    do you have an idea how can i get 24vdc and io=5A
     
  6. Alec_t

    AAC Fanatic!

    Sep 17, 2013
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    Not with a 90-264V AC input range.

    Edit: Google 'fly-buck converter' to see the general approach.
     
    Last edited: Aug 6, 2016
  7. karas

    Thread Starter Active Member

    Sep 8, 2011
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    can you do it with 120+-10%
     
  8. Alec_t

    AAC Fanatic!

    Sep 17, 2013
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    I'm sure someone can, but not me. The tricky part would be designing and making, or acquiring, the right transformer. Magnetics aren't my forte. I'd just buy an off-the-shelf converter, which would be cheaper than the cost of its parts to me.
     
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