A high stability high voltage power supply design for HEPS injection system

Purpose The high energy photon source (HEPS) uses the on-axial injection scheme. There are two designs in this injection scheme that are critical to the performance of the HEPS injection system. One is the strip line kicker and another is the high voltage fast pulse power supply system. In the high voltage fast pulse power supply system, the design of high voltage power supply is very important. The output voltage stability of high voltage power supply directly affects the stability of the pulse amplitude of the injection system. Methods A high voltage power supply with high output voltage stability is designed in this paper, and the scheme is given. The correctness of the design scheme is verified by simulation experiments. Result A prototype is built for full test. The test results showed that the output voltage stability is lower than 58 ppm. The output voltage is 6.4 mV(f ≤ 3 kHz)/113.2 mV(f > 3 kHz). Conclusions The designed high voltage power supply can fully meet the requirements of the HEPS injection system.