The role of new components on switching power supply

After more than 20 years of continuous development, the development of new power devices has laid the foundation for the high frequency of switching power supplies, and the application of power field effect transistors (MOSFETs) and insulated gate bipolar transistors (IGBTs) makes small and medium power switching power supplies operate at frequencies as high as 400kHz(AC-DC converter) and 1MHz (DC-DC converter). High-performance silicon carbide semiconductor devices are now being explored in the stage of high temperature, high frequency, high power, high voltage, optoelectronics and radiation resistance has great application potential, once successfully developed, will have a revolutionary impact on power technology. In addition, the development of components such as planar transformers, piezoelectric transformers and new capacitors will also play an important role in the small, thin and lightweight switching power supply.