Wang, F (reprint author), Chinese Acad Sci, Shanghai Inst Nucl Res, Shanghai 201800, Peoples R China.
The low level BE control system is air essential part of the RF system for Shanghai Synchrotron Radiation Facility (SSRF). In the R&D of the SSRF, one set of low level control system was developed. It consists of a 500MHz signal generator, three feedback loops, an interlock and a protection system. This paper addresses the design of this system and mainly introduces the three feedback loops.