Silvio's latest activity

  • Silvio
    Silvio replied to the thread Output current problem.
    You relate power in the input and power in the output according to the voltage in each case. Volts per turn Pri = 320v / 30 = 10.7v per...
  • Silvio
    Silvio reacted to scormonel's post in the thread Audio smps 700w (IR2153) with Like Like.
    This is how I feed the IR2153 without heating anything.
  • Silvio
    Silvio replied to the thread Audio smps 700w (IR2153).
    Regarding the 13v zener burning it is not normal because at 4 turns in the auxiliary winding the output voltage here is around 18 to...
  • Silvio
    Silvio replied to the thread Audio smps 700w (IR2153).
    Hi Benny, be careful that you are not using IRS 21531 as this IC has a shorter dead time only 0.6uS compared to the IR 2153 which is...
  • Silvio
    Hi Saqib, I think you are missing something here. Let us consider your forward converter. So the power to be absorbed by this forward...
  • Silvio
  • Silvio
    Silvio replied to the thread Output current problem.
    The assumption is not right. You have to consider power input versus power output and adding around 20% more on the input to cover...
  • Silvio
    Silvio replied to the thread Ir2153 oscillation problem.
    The high side gate drive pin7 gets its power from the bootstrap capacitor. This capacitor charges itself when the lowside mosfet comes...
  • Silvio
    Silvio replied to the thread Help Pls: IR2153 HB failure..
    One other thing I am noticing is that the voltage regulation at pin 1 is all depending on the internal 15v zener inside the chip. I also...
  • Silvio
    Silvio replied to the thread Help Pls: IR2153 HB failure..
    The IR2153 is designed to power medium power mosfets, (10A) however in this circuit the 20n60 mosfets used have a a very low gate charge...
  • Silvio
    Silvio replied to the thread Testing circuits.
    First of all if you intend to build a high current smps, then it has to be prepaired from the design stage. Type of transformer...
  • Silvio
    Silvio replied to the thread Help Pls: IR2153 HB failure..
    Do you have a problem maybe I can help you? Regards, Silvio
  • Silvio
    Silvio replied to the thread Making litz wire at home.
    Well I also tried my software Excellent IT 7300 at this but as you can see the rated transformer power is far less the the desired...
  • Silvio
    Silvio replied to the thread Making litz wire at home.
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