Selection of proper wire for Ferrite core

Discussion in 'The Projects Forum' started by xyz9915, Mar 28, 2008.

  1. xyz9915

    Thread Starter Member

    Feb 24, 2008
    Please help me that how do I determine proper wire size in SMPS for building a ferrite core transformer.
  2. SgtWookie


    Jul 17, 2007
    How much current do you plan on passing through the wire?

    Here's a link to a table of wire sizes and resistances:

    It's a handy one because in addition to AWG size, diameter, Ohms, and Amperes, it also has frequency limits for 100% skin depth on solid conductors.

    You might want to read through this page:
    It's for low-current high-voltage flyback converters, but there's some good info on using ferrites in winding transformers/inductors for power supplies, and testing them.