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This paper describes the new power supply of the Birmingham proton synchrotron which is used to produce the required field-density waveform in the main magnet air gap. After discussion of the original power supply and its control system, the design of the new power supply is described. This is a closed-loop automatic control system incorporating one loop to accurately control the field-winding currents of the two paralleled main generators, with a second overall loop of a digital nature which modifies the control program in response to preset magnet field densities. The resulting improvements to the synchrotron performance are indicated.
Electrical Engineers, Proceedings of the Institution of (Volume:114 , Issue: 9 )
Date of Publication: September 1967