Recent Blogs Posts

  1. Calculation programs for transformers and inductors

    Quote Originally Posted by Starichok51 View Post
    Hello everyone!
    I present to you my program for the calculation of transformers and inductors.
    One of them ( ExcellentIT(6100) ) Dimonis you presented in your theme SMPS transformer design tool.
    The program ExcellentIT(7100) was corrected English translation and added standard AWG wire and the added choice of the desired diameter wire.
    selector is not signed due to lack of space, but it is a tool tip.
    In other programs, this selector signed "Use the desired
    Attached Thumbnails Attached Files
  2. smps flyback controller ic

    I am a nub is smps and just completed my first breadboard isolated smps with 24 volt input. I used the SG6848D controller from Ebay. Anyone has any suggestions for a better IC.
    Just some details

    Input voltage 24 volts Output 5.
    Used an opto coupler for feedback.
    The transformer seems to work okay. I designed it for 3 amps. The problem is when I exceed 2 amps the signal gets very jittery and it stops functioning. I was able to go to 3 amps with no feedback ...
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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