IX. CONCLUSIONS
In order to develop a topology that presents greater efficiency with reduced weight and size, the three-phase stepup dc-dc isolated converter controlled by an average currentmode strategy was presented. With these characteristics, this converter contains only three controlled switches and, a high frequency transformer. The input and output filters are fed by three times the switching frequency, which will reduces their volume. This converter can be used in all applications that require a reduced input ripple current e.g., in industrial applications, where the dc input voltage is lower than the output voltage, for instance in installations fed by battery units, photovoltaic arrays or fuel cell systems. The model employed was the same of the classical boost dc-dc converter with a filter capacitor . Its simplicity join with its very satisfactory results. During its construction special care was taken in the constructing the transformer, mainly, with respect to the reduction of its leakage inductance. This characteristic is an important constraint for choosing switching frequency.