Pan, WM (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.
For the sake of acquiring the shorter beam bunch length a 500MHz RF system will be adopted in Beijing Electron-Positron Collider Upgrade (BEPCII) project to replace the existing 200MHz RF system. The designed beam current of BEPCII is 0.91A which put forward high requirements to the parameters of RF power source. According to the BEPCII general goals and the related requirements with RF system we completed the BEPCII RF power source layout and all technical designs including the parameters for the transmitters and the circulators, completed the designs of all auxiliary systems. Based on these designs, the first BEPCII RF power source including the transmitter and the circulator as well as the auxiliary systems have been established and passed the acceptance test.