摘要： There is no doubt that power electronics is playing a critical role in the evolution of the overall infrastructure of energy supply, from motion control and drives to industry automation and traction techniques. However, unlike decades of impressive developments in semiconductor technologies, the developments in the passive components arena, especially in magnetic components, have been rather slow and have been seen as a power system bottleneck in terms of efficiency and miniaturization. To fully tap the benefits of next-generation semiconductors, namely, silicon carbide (SiC) and gallium nitride power devices, the next-generation passive components, particularly magnetic components, must be compatible with these emerging devices, especially at high frequencies and under high pulse excitation. In essence, high saturation and low-power losses under pulse excitation and relatively high temperatures are required. Current power converters using MnZn-ferrite magnetic materials possess saturation induction (Bs) levels around 530 mT at room temperature that decrease down to 430 mT at 100 °C. It is to be noted that the Bs is measured according to the IEC standard for polycrystalline ferrite under room temperature, at a field strength of 1194 A/m and 10 kHz, which is far beyond the application range. The applicable field strength varies between 100 and 200 A/m depending on the industry (aerospace, industry, and consumer electronics). Accordingly, the power losses of these materials at 1 MHz and 50 mT vary from around 350 mW/cc at room temperature to approximately 1 W/cc at 100 °C. The measuring condition is still under the sinusoidal mode.