Design of digital controller for HEPS corrector power supply

Purpose In order to realize the control of current closed loop in HEPS corrector power supply, a digital control board is designed.Methods The control board uses the latest FPGA to realize digital processing and uses two different AD chips to realize current and voltage sampling, respectively. In order to achieve high-precision closed-loop control, an effective closed-loop control program is designed.Results The controller has been widely used in HEPS projects, and its control effect has been proved.Conclusions In order to realize control and reduce power cost, the controller is designed. The testing experiments show that the controller has excellent performance, reliable operation and low cost.