Development of a high frequency and high voltage pulse transformer for compact TWT HVPS

Summary form only given, as follows. In designing a compact and high efficiency TWT microwave amplifier, the role of a high power density DC power supply is very important. In order to reduce the volume of the power supply, it is necessary to increase the switching frequency of the power supply. The high operation frequency mainly reduces the transformer volume in the power supply. However, a step-up ratio of the transformer in the high voltage DC power supply needs to be maintained. Therefore, the pulse transformer should be carefully designed to fulfill its function in the power supply. A high frequency and high voltage pulse transformer is designed, fabricated, and tested. The switching frequency of the transformer is 80 kHz. The input and output voltages of the transformer are 265 V DC and 4 kV, respectively. The normal operation power of the transformer is 1.7 kW. The maximum volume of the transformer is 200 cm/sup 3/.