Dipole power supply for National Synchrotron Light Source booster upgrade

The booster at the National Synchrotron Light Source is being upgraded from 0.75 to 2 pulses per second. To accomplish this, new power supplies for the dipole, quadrupole, and sextupole magnets have been designed and are being constructed. The authors outline the design of the dipole power supply and control system, and present results obtained thus far. All feedback, feedforward, and control functions are performed in a general-purpose digital signal processor. This allows the use of control elements of substantially greater complexity and performance than can be obtained from an analog system