High Density Power Supply Design Based on Full SiC Power Device

With the continuous development of light-weight, miniaturization and high-efficiency for radar active array, as one of the key parts of radar active array, the efficiency and power density of array power supply need to be improved continuously. A design method which transfers high voltage direct current (DC) input to the low voltage DC needed by radar array based on full SiC power devices is introduced. This method uses the advantages of SiC power devices and combines with phase-shift pulse modulation power conversion technology of high voltage DC to realize high power density and efficiency of high voltage input array power supply. Through a power supply prototype with rated power of 1.5 kW, this method has been verified and the current prototype has been mass-produced.