• DocumentCode
    1176441
  • Title

    Note on a Cause of Residual Hum in Rectifier-Filter Systems

  • Author

    Terman, Frederick Emmons ; Pickles, Sidney B.

  • Author_Institution
    Stanford University, California
  • Volume
    22
  • Issue
    8
  • fYear
    1934
  • Firstpage
    1040
  • Lastpage
    1041
  • Abstract
    The capacitance of the power transformer secondary to ground is shown to by-pass the filter system when the filter chokes are in the negative lead and the negative output is grounded. This results in a residual ripple voltage across the output that may be greater than the ripple voltage passed by a very good filter. The remedy is either to place the filter inductance in the positive lead or to ground the positive output terminal.
  • Keywords
    Capacitance; Filtering; Filters; Grounding; Impedance; Inductance measurement; Inductors; Power transformers; Rectifiers; Voltage;
  • fLanguage
    English
  • Journal_Title
    Radio Engineers, Proceedings of the Institute of
  • Publisher
    ieee
  • ISSN
    0731-5996
  • Type

    jour

  • DOI
    10.1109/JRPROC.1934.226766
  • Filename
    1685714
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1176441