I am using UUR6440 Ferrite Core. I’ve used Fair-Rite 43 material toroid cores in the past, but where low frequency performance is necessary, I’ve found Steward’s 35 material useful.So, I want to make a High-Frequency Ferrite transformer that can convert my 150-volt peak Square wave into 100000 Volt Peak. 26 AWG wires twisted together around 4 to 5 turns per inch, wound with 10 turns on a Steward 35T0501-H10 ferrite core. My favorite design uses a bifilar winding, consisting of two no.
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Ferrite Transformer Design Plus Transformer Power
For this, check if the wires fit into your winding area in the bobbin, height and mean length of turns from the mechanical drawing.Include insulation used between windings, while considering total winding height.Verify the design by measuring open-circuit and loaded voltages across secondary winding. Primary current is equal to total output power plus transformer power losses, divided by primary voltage.Next comes the number of turns needed for secondary winding. Then, calculate the correct number of turns, power losses and other parameters.Primary winding current and wire size need to be determined. Make sure the bobbin style and materials are available in the local market. Then, consider other parameters like physical size, spacing, mounting style, isolation, leakage currents and temperature.Most core types need bobbins to fit the cores you choose, and assist in the mounting of the finished product. This may include input voltage, output voltage, current and frequency of operation.
These can be calculated using standard formulae. Two main causes of temperature rise in a transformer are core power losses and winding power losses. Then, calculate voltage drop across that winding by multiplying resistance and current in the winding.Calculate open-circuit voltage and loaded voltage across secondary winding using the formulae given in the above-mentioned websites.Acceptable temperature rise depends on the application and the designer.
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