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King, Q.

Paper Title Page
MOPAN070 Developments in High-precision Aspects of Power Converter Control for LHC 314
 
  • G. Fernqvist, M. C. Bastos, A. Cantone, Q. King
    CERN, Geneva
 
  The initial results from integration testing of the LHC magnet power converters revealed problems of low-frequency noise, settling time, drift with time and temperature, thermal management and EMC. These problems originated in the use of DSP, the A/D converter (ADC), the DC Current Transducer (DCCT) and their respective environments. This paper reports the methods used to improve the performance through hardware and software modifications and the results achieved.