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A hybrid multi-level switching converter for ring-magnet power supplies

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2 Author(s)
Pavan Kumar, M.R. ; Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada ; Kim, J.M.S.

Conventionally, ring-magnet power supplies (RMPS) are designed using phase-controlled rectifiers or resonant networks with DC-bias power supplies. These power supply configurations satisfy the steady-state performance criteria using large reactive components in addition to the magnet load. They have limited dynamic response, and often rely on corrector-magnet power supplies or other auxiliary power supply networks for the fast dynamic compensation required for output regulation and reference tracking. This paper proposes a hybrid multilevel switching converter as a RMPS which has fast dynamic response and meets the stringent output ripple content specifications. The proposed ring-magnet power supply also has the advantage of current waveshape programmability. The operating features of the hybrid multilevel switching converter has been described. The development of the RMPS with the hybrid multilevel switching converter as an unit has been explained. The current programmability of the proposed power supply configuration has been illustrated with computer simulations. Experimental results to substantiate the computer simulations are presented

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Nuclear Science, IEEE Transactions on  (Volume:43 ,  Issue: 3 )