Search results

  1. MicrosiM

    Audio smps 700w (IR2153)

    No, the schematic is 100% correct
  2. MicrosiM

    Alternative to IRG4PC50W

    The waves seem clean Did you check the diode across pins 1 & 8 of the IR2153? Did you check for a short circuit at the output?
  3. MicrosiM

    Alternative to IRG4PC50W

    Do you have an oscilloscope?
  4. MicrosiM

    Alternative to IRG4PC50W

    Upload PDF file of your schematic to provide you with more help I noticed that you are still facing challenges, and your video is showing the output voltage increasing. I am afraid that you may have oscillation or short at the secondary side.
  5. MicrosiM

    Alternative to IRG4PC50W

    Try HGTG20N60A4D
  6. MicrosiM

    Forum Problems

    English
  7. MicrosiM

    1kW smps project (based on MicrosiM design)

    Before you power it up, make sure that you have the correct waves at the outputs before mounting the MOSFETS
  8. MicrosiM

    1kW smps project (based on MicrosiM design)

    That looks nice!
  9. MicrosiM

    Sugestion for smps non insulated

    Hello I think at that output power, the input current will be very high making this design challenging at some point. I will look for this Thanks
  10. MicrosiM

    IR2153 Soft Start

    IR2153 Can be a painful design if not designed properly. Look at Silvio SMPS with IR2153, its a well-designed one Thanks
  11. MicrosiM

    TL431 calculation formula

    After some serious work with TL431 chip, I had to find the proper way to calculate the values of the resistors for any given voltage in a SMPS. The attached formula is the result of my work. However the formula is already found on the internet at many places, but I put it in an excel sheet for...
  12. MicrosiM

    Short-circuited my brand new SMPS :-(

    Check fuse, Mosfet Try to put some pictures from bottom
  13. MicrosiM

    Issues with transformer/inductor cores

    What topology is this SMPS? Schematics?
  14. MicrosiM

    Making litz wire at home

    Dear Silvio, Thank you for sharing this paper. Its really helpful Thanks!
  15. MicrosiM

    Making litz wire at home

    Hi Silvio Problem solved, now you can upload files up to 3MB in size. I still can increase that if you like! Thanks
  16. MicrosiM

    Two switch forward based on UC3845

    No problem with regulation, use GDT, there are many circuits for the same chip with regulated output try different core for the GDT
  17. MicrosiM

    Two switch forward based on UC3845

    I still believe that you can use the UC3845 or similar chip to drive a GDT and forget the regulation at this first test. Make sure that your SMPS is working and try regulating it. For 200W you don't need a regulated power supply I think. Hope that helps
  18. MicrosiM

    Switch Mode Power Supply for Arduino based energy meter

    use PI Expert, everything you need to know is there
  19. MicrosiM

    1000w smps based on LUDO3232

    The old forums are no longer active. Everything moved to this new platform, the old one was a real pain! Thanks
  20. MicrosiM

    1000w smps based on LUDO3232

    Hello Silvio the old url should work fine as nothing is changed! the attachments should work fine now
Top