Skoči na glavni sadržaj

Rezultati pretrage

eng FEM modelling and experimental validation of proximity loss
Zurek, Stan
Transformers Magazine Vol. 4, No. 1, 2017
Skin depth and proximity effects in transformer windings are important phenomena influencing the design even at power frequencies (50-60 Hz). They become critically important at elevated frequencies, especially for high-frequency transformers. This article presents results of computer simulations and experimental validation on physical prototypes. The investigated frequency range was from 1 Hz to 10 kHz.
Hrčak ID: 172548


eng Qualitative FEM study of proximity loss reduction by various winding configurations – Part II
Zurek, Stan
Transformers Magazine Vol. 3, No. 2, 2016
Skin depth and proximity effects in transformer windings are important phenomena influencing the design even at power frequencies (50-60 Hz). However, they become critically important at elevated frequencies, especially for high-frequency transformers, operating in switched-mode power supplies for example, at any power level. This article presents a numerical study of optimum winding configurations which can drastically reduce the proximity effects. It is possible to make transformers operating even at 1 MHz without the use of very expensive Li...
Hrčak ID: 167664


eng Qualitative FEM study of proximity loss reduction by various winding configurations – Part I
Zurek, Stan
Transformers Magazine Vol. 3, No. 1, 2016
Skin depth and proximity effects in transformer windings are important phenomena influencing the design even at power frequencies (50-60 Hz). However, they become critically important at elevated frequencies, especially for high-frequency transformers, operating in switched-mode power supplies for example, at any power level. This article presents a numerical study of optimum winding configurations which can drastically reduce the proximity effects. It is possible to make transformers operating even at 1 MHz without the use of very expensive Li...
Hrčak ID: 180201