Low voltage flyback DC-DC converter for power supply applications

In this paper, we design a low voltage DC-DC converter with a flyback transformer. The converter will be used as a biased power supply to drive IGBTs. The flyback transformer using planar EI-core is designed and simulated using ANSYS PExprt software. Besides, anLT3574 IC chip from Linear Technology has been chosen for converter control. Finally, the converter modeling and simulation are presented and PCB layout is designed.

[1]  Thomas Wu,et al.  Analysis and design of distributed transformers for solar power conversion , 2011, 2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[2]  S. Xiao.  Planar Magnetics Design For Low-voltage Dc-dc Converters , 2004 .

[3]  T. X. Wu,et al.  Modeling and design optimization of planar power transformer for aerospace application , 2009, Proceedings of the IEEE 2009 National Aerospace & Electronics Conference (NAECON).

[4]  P. L. Dowell,et al.  Effects of eddy currents in transformer windings , 1966 .