Title :
More precise model for parasitic capacitances in high-frequency transformer
Author :
Xinkui, Mao ; Wei, Chen
Author_Institution :
Electr. Eng. Dept., Fuzhou Univ., China
Abstract :
As the components operating at high frequency and switch mode excitation, parasitic parameter extractions of power electronics magnetics, such as transformers, have many special issues. A parasitic capacitance related with leakage inductance and winding resistance in the lumped circuit model of a transformer is found to be significant in the transformer circuit model. The influence of eddy current effects and magnetic field distributions due to high frequency and winding arrangement on the capacitance are considered and an FEA simulation model is proposed to calculate the capacitance.
Keywords :
capacitance; eddy currents; high-frequency transformers; inductance; magnetic fields; magnetic leakage; transformer windings; eddy current effects; high frequency; high-frequency transformer parasitic capacitance calculation; leakage inductance; lumped circuit model; magnetic field distributions; parasitic capacitance; parasitic capacitances; parasitic parameter extractions; planar transformer structure; power electronics magnetics; switch mode excitation; transformer; transformer circuit model; two-step algorithm; winding arrangement; winding resistance; Circuit simulation; Eddy currents; Electric resistance; Frequency; Inductance; Magnetic switching; Parasitic capacitance; Power electronics; Power system modeling; Switches;
Conference_Titel :
Power Electronics Specialists Conference, 2002. pesc 02. 2002 IEEE 33rd Annual
Print_ISBN :
0-7803-7262-X
DOI :
10.1109/PSEC.2002.1022595
