Design and Modeling of an Integrated Micro-Transformer in a Flyback Converter
Abstract: This paper presents
the design and modeling of a square micro-transformer for its integration in a
flyback converter. From the specifications of the switching power supply, we
determined the geometric parameters of this micro-transformer. The π-electrical
model of this micro-transformer highlights all parasitic effects generated by
stacking of different material layers and permits to calculate the
technological parameters by using the S-parameters. A good dimensioning of the
geometrical parameters reduces efficiently the energy losses in the
micro-transformer and permits to reach the desirable value of the converter
output voltage. We have also simulated the electromagnetic effects with the
help of the software FEMLAB3.1 in two cases. The first case, without
ferromagnetic core, the second case with ferromagnetic core, in order to choose
the micro-transformer that has better electromagnetic compatibility with the
vicinity components. To validate dimensioning of the geometrical and
technological parameters, we have simulated with the help of the software
PSIM6.0, the equivalent electrical circuit of the converter containing the
electrical circuit of the dimensioned planar micro-transformer.
Author: M. Derkaoui M.
Derkaoui, A. Hamid A. Hamid, T. Lebey T. Lebey, R. Melati R. Melati
Journal Code: jptkomputergg130098
