Flyback transformers are designed with all types of cores. Ferrite cores have several advantages such as ease of winding on a bobbin with integral terminal pins, better options for winding design ...

The shunt capacitance calculation results which are very small, and even negative, tell us that the shunt capacitance of this transformer is essentially negligible. Just as a quick check, 70.7 / 17.1 ...

Figure 4 Transformer with trimmed RTV-11 By allowing the RTV-11 some room to expand without impinging on the ferrite, core cracking was prevented. Also, while this was indeed a high voltage ...

The frequency is to be 50 kHz, with a 50% ON period for Q1 (10µs). A gapped ferrite core with a pole area of 100mm 2 is to be used. The example assumes 100% efficiency and zero diode drop.