Recent content by mgarbuli

  1. mgarbuli

    Ir2153 1000V floating voltage problem

    What controller are you using on it?
  2. mgarbuli

    Quadratic boost converter problem.

    Hello people! I´m working in a quadratic boost converter, i need to boost a 60 Vdc power supply to 350 Vdc, output currente of 2 A. I have found some papers in the net about that, and i designed a circuit like the picture. The frequency is 50 kHz, controller TL 494 with maximum duty cicle of...
  3. mgarbuli

    Setting maximum duty in UC3843

    Hi there! Is there a way to set the maximum duty cycle of an UC3842 to 80% instead of the default of 97%. I need to design a boost converter and i wanna to put this "lock" feature to prevent destruction of the transistor. Sincerelly; Marcelo
  4. mgarbuli

    Sugestion for smps non insulated

    Hi all I need to make a SMPS with this specifications: Input 50 to 85 Vdc Output 550 Vdc @ 3,7 A. non insulated. I need a topology with low cost, i found the boos topology, but i´m afraid that the ratio input/output do not allow to use it. Any suggestion? Sincerelly Marcelo
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