Development of a Compact Switching Power Supply for an Induction Synchrotron Utilizing a SiC-JFET

Abstract

Utilizing a high power discrete SiC-JFET developed by KEK, a switching power supply (SPS) that had a circuit topology of H-bridge was designed and constructed to drive the induction acceleration system for the KEK digital accelerator. Firstly, the SPS was operated with a 38Ω dummy resistance load and bipolar outputs of 800V and 21A were successfully demonstrated at 1MHz. Nextly, combination test with an actual induction cell was demonstrated. And finally, actual beam acceleration test was successfully demonstrated.