Increasing the Utilization Of The Transformer’s Magnetic Core By Using Quasi-integrated Magnetics

Increasing the Utilization Of The Transformer’s Magnetic Core By Using Quasi-integrated Magnetics

  • Date of Publication 07 Sep 1996
  • Meeting end date 13 Sep 1996
  • On page 238-252
  • Location Las Vegas, Nevada, USA
  • Conference/Proceedings High Frequency Power Conversion & Advanced Power Electronics Technology, September 1996. HFPC '96. Conference Proceedings 1996, Eleventh International

This paper will present several topologies that lead to a better utilization of transformer’s magnetic core. In these topologies the main transformer becomes a magnetic storage element, reducing the size of the output filter. Quasi-integrated magnetic will be presented as an intermediate step between conventional and fully integrated magnetic underlying its advantages and limitations. There will be presented quasi-integrated magnetic topologies with and without secondary winding tap. Two methods of eliminating the secondary winding tap will be suggested, one by using current-doubler and the second by employing two symmetrical transformers. Two 100W 5V@20A experimental converters were built and evaluated using quasi-integrated magnetic under two different implementations.