ROYER CIRCUIT,Transformer design.

[myfaithnka]

CAN ANY ONE PLEASE TELL ME HOW I CAN DESIGN A ROYER CIRCUIT FROM SCRATCH...

My purpose is for driving CFL tubes.


I am totally newbie to ferrite transformer winding methods...At the retailer, I hear there are some sizes and types too.I am totally confused about this LC circuit frequency selection.

 

[Akwasi]

You might check some Application Notes, for example App Note 118 from Linear Tech, the CCFL Transformers can be bought from Digikey for ~$10 (Coiltronics),
the frequency calculation is f= 1/(2*pi*sqrt(L*C)), see also https://www.daycounter.com/Calculators/LC-Resonance-Calculator.phtml,
I guess that in case of Royer only the 1/2 of the primary inductance is used in the calculation