Integration of magnetic components in a step-up converter for fuel cell

Fuel cell generator is a good example of a high voltage gain application in which DC-DC step-up converter is a critical part. The input voltage of the converter decreases while the output power increases. It creates challenges in design of the converter´s magnetic components. Scope of this paper is integration of the DC inductor and the transformer on a single core. Such integration improves utilization of the core and windings. It leads to size reduction of the converter.