The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Chang, F.Y. AU - Chang, M.H. AU - Chang, S.W. AU - Chen, L.J. AU - Chung, F.-T. AU - Li, Y.D. AU - Lin, M.-C. AU - Liu, Z.K. AU - Lo, C.H. AU - Wang, Ch. AU - Yeh, M.-S. AU - Yu, T.-C. ED - Liu, Lin ED - Byrd, John M. ED - Neuenschwander, Regis T. ED - Picoreti, Renan ED - Schaa, Volker R. W. TI - A Klystron Phase Lock Loop for RF System at TPS Booster Ring J2 - Proc. of IPAC2021, Campinas, SP, Brazil, 24-28 May 2021 CY - Campinas, SP, Brazil T2 - International Particle Accelerator Conference T3 - 12 LA - english AB - In TPS booster ring, the DLLRF is used to controlled the ramping gap voltage and also the energy saving module is applied to save power while the ring does not inject beam. But we occurred to have a problem of PI saturation due to a large phase change when the energy saving module working. The energy saving module switches the anode voltage of the klystron from high to low level to decrease the cathode current while the ring does not inject and do the opposite while the ring injects. This action causes a large phase change of the transmitter and leads the PI controller to work in the wrong direction. We add a klystron phase loop to solve this situation. PB - JACoW Publishing CP - Geneva, Switzerland SP - 3354 EP - 3356 KW - controls KW - cathode KW - klystron KW - LLRF KW - injection DA - 2021/08 PY - 2021 SN - 2673-5490 SN - 978-3-95450-214-1 DO - doi:10.18429/JACoW-IPAC2021-WEPAB296 UR - https://jacow.org/ipac2021/papers/wepab296.pdf ER -