@misc{oai:repo.qst.go.jp:00076349,
 author = {Kondo, Chikara and Nishimori, Nobuyuki and Tanaka, Hitoshi and Fukami, Kenji and Saji, Choji and Watanabe, Takahiro and Takano, Shiro and Fukui, Toru and Nakazawa, Shingo and Kondo, Chikara and Nishimori, Nobuyuki and Tanaka, Hitoshi and Fukami, Kenji and Saji, Choji and Watanabe, Takahiro and Takano, Shiro},
 month = {May},
 note = {Next-generation synchrotron radiation sources, such as SPring-8 upgrade, require various kinds and large amounts of magnet power supplies, and most of them are require to be highly stable. In order to provide many power supplies with a reasonably low cost in a short production period, we developed a common current control system using a digital feedback control technology. The system consists of a high-precision analog-digital converter (ADC) circuit and a feedback controller using a field programmable gate array (FPGA). We tested a DC power supply equipped with the above digital feedback control system, and confirmed that the current ripple could be suppressed to less than 5 ppm  (pk-pk).   We also prototyped a high power DC power supply with 650 A based on a modularization concept. We also prototyped a DC-link power supply for a steering magnet with synchronized current output between 3 ports., 10th International Particle Accelerator Conference},
 title = {Digital Control System Of High Precision Magnet Power Supply For SPring-8-Ⅱ},
 year = {2019}
}