Utilization of the power losses map in the design of DC/DC converters

In this paper, the authors propose a power losses map in order to optimize the design of DC/DC power converters. The power losses map is a level curves graph which shows, in advance, the theoretical power losses at the different operation-points where it is possible to design a DC/DC power converter, under the same specifications. They present the use of the power losses map especially when there are some restrictions in the design, such as the converter size, the magnetic core size, the maximum drain-source voltage, the conduction mode, when some component is imposed, etc. Finally, a comparison between both the theoretical power losses map and experimental results from flyback power converters is also presented.