There is a small isolation transformer 'L1' of 1:1 ratio as shown in the image. A 0-24V, 75kHz square wave is applied from push-pull mosfets stage at the 'V_SW' input of the circuit. I want to find out the approx inductance value of the isolation transformer using calculation. Is there some way to do this calculation?
I have found this transformer and it is actually not a transformer but a Common mode choke for EMI suppression filter. But in the above circuit it is used for isolation purpose as it is just 1:1 turns ratio.
My question is that this choke is available from 33 mH to 0.5 mH values. Should I use lower Inductance value or higher or some middle value? How will it effect the working of this circuit?
The exact part is found at this link: http://www.mycoiltech.com/emi-suppression-filter-common-mode-choke-coil-uu9-for-ac-power-lines_p75.html