need help about smps

Discussion in 'General Electronics Chat' started by bahramzoom, Oct 8, 2013.

  1. bahramzoom

    Thread Starter New Member

    Jun 27, 2013
    dear friends im trying to drive the H-bridge with a ferrite transformer.but all the ways i tried i couldnt reach the answer.i tried on totem pole and other ways but:(plz help me how to drive and protect my mega mosfets:(
  2. JDT

    Well-Known Member

    Feb 12, 2009
    Your "mega" mosfets MUST be driven with the correct mosfet driver. If not I can guarantee that they will be destroyed.

    The driver must be able to supply 2 -3A into the gate to be able to quickly charge and discharge the gate-source capacitance. There are many integrated single, dual, high-side, low-side, full and half bridge driver I.C.s available. Go to the website of a semiconductor manufacturer and look at their products and application notes. Start with International Rectifier
    shortbus likes this.
  3. shortbus

    AAC Fanatic!

    Sep 30, 2009
    +1 to the solution from JDT. In the old days gate drive transformers were the only solution, but now the best/easiest is a gate driver.