1:1 transformer question reg:

Discussion in 'The Projects Forum' started by onlyvinod56, Jun 10, 2012.

  1. onlyvinod56

    onlyvinod56 Thread Starter Active Member

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    Hello,

    IN brief,

    I want to trigger a mosfet/igbt with a pulse train of duty cycle 30% with 50Hz frequency.

    Does the 1:1 pulse transformer responds to this signal?
    Should i require any driving circuit?
  2. onlyvinod56

    onlyvinod56 Thread Starter Active Member

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    Any small info about pulse transformer is enough to proceed my discussion.
    160 views but not even a reply.

    Anybody worked on rectifiers.......

    It will be thankful...
  3. wayneh

    wayneh AAC Fanatic!

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    This is because your needs are not clear. No one knew how to reply. Where's a schematic? What is a "pulse transformer"? Why did you ask about rectifiers? Why not just use the "normal" DIY solution of a 555 timer to provide your pulse train? More information will help people give you better answers.

    A dedicated driver may not be needed at 50Hz, where the drive currents are not so large.
  4. t06afre

    t06afre AAC Fanatic!

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    I saw your first question earlier today. And it was unclear. So at that moment i did not have time engage me in it. To me it look like you are confusing the function of a thyristor or TRIAC with mosfet/igbt. So it would help if you clear things up.
  5. lightingman

    lightingman Active Member

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    Proably not. They are designed for short pulses or higther frequency. You would be better off using an opto-coupler.

    Dan.
  6. onlyvinod56

    onlyvinod56 Thread Starter Active Member

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    Thanks....thats all i want.

    and regarding the schematic you are asking.......

    there are many circuits where i want to use this pulse transformer.
    example: a 5 level diode clamped multi level inverter.

    Total 16 mosfets, 8 on each leg. I cannot use that many opto couplers. Iwant to eliminate the isolated power supplies. i want to use pulse transformer for each mosfet.
  7. onlyvinod56

    onlyvinod56 Thread Starter Active Member

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    Wahtever..... they need a triggering pulse which i want to isolate from the triggering circuit.
  8. onlyvinod56

    onlyvinod56 Thread Starter Active Member

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    thankyou lightingman
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