A static converter comparative study taking into account semiconductor tecnologies and swicth auxiliary circuits: Optimized design

The optimized static converter design is directly related to the appropriate choice of operation point (Δi @ fs). The magnetic elements like inductor and noise filter, and thermal elements like heat sink are which main influences in the converter volume. These elements are strongly influenced by the chosen operation point, showing a direct relationship among them [1]. With the increase of both the switching frequency and the input current ripple occurs reduction of the inductor volume. On the other hand, it increases the switching losses into semiconductors and influence on the EMI filter volume. However, the switching losses can be minimized using auxiliary commutation circuits, which reduce the power dissipation over the main semiconductor devices, decreasing the heat sinks volume. This works presents a comparative analysis, aiming to find the operation point that the converter figures out the minimum final volume applied to different semiconductor technologies and auxiliary commutation circuits.