questions about royer oscillator

Discussion in 'General Electronics Chat' started by lokeycmos, Aug 3, 2012.

  1. lokeycmos

    Thread Starter Active Member

    Apr 3, 2009
    so i built the attached circuit and i have a couple questions about it.

    1. what determines the oscilating frequency? is it the capacitor or is it based off the feedback winding?

    2. not all flybacks are the same. if i were to calcualte the resonant capacitor based off the oscilating frequency and the inductance of the 7+7 turns, would i measure inductance from all 14 turns or just 7 turns? a little bit confused, if the frequency changes with capacitance, then the only constant i have is the inductance of the primary.

    4. what would the optimum frequency be then? then i can calculate the proper capacitor
  2. mlog


    Feb 11, 2012
    Frequency of oscillation depends very much on the characteristics of the transformer core.