Simulation and modeling of high voltage nano crystallinecore toroid pulse transformer for pulse modulator

This paper calculates parasitic elements consists of leakage inductance and parasitic capacitance in a high voltage toroid pulse transformer. The parasitic elements of pulse transformers significantly influence the resulting pulse shape of a power modulator system. In order to prevent of effects on the pulse shape before constructing the transformer an electrical model is needed. The technique procedures for computing these elements are based on finite element analysis. The Finite element model of pulse transformer is created using software "Ansys Maxwell 3D". Finally, the transformer parasitic elements is considered in high voltage modulator simulation. Due to behavior of nonlinear core is used "Ansoft Simplorer8". Pulse modulator is simulated and results is compared with actual test of pulse modulator. The results obtained are very similar with the test values.