ROYER CIRCUIT,Transformer design.

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myfaithnka

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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.
 

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
 
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