A System for Suppressing Hum by a New Filter Arrangement

A new system for filtering the output of rectifiers or the commuttator ripple from generators is discussed, giving the mathematical design and showing the superiority in practical results as compared with standard systems. The system is based on the superposition of a current which has been shifted...

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Bibliographic Details
Published in:Proceedings of the IRE 1931-04, Vol.19 (4), p.664-675
Main Author: Craig, P.H.
Format: Article
Language:English
Subjects:
Circuits
Filtering
Filters
Filtration
Frequency
Inductance
Receivers
Rectifiers
Resistors
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Summary:A new system for filtering the output of rectifiers or the commuttator ripple from generators is discussed, giving the mathematical design and showing the superiority in practical results as compared with standard systems. The system is based on the superposition of a current which has been shifted in phase by means of a wave-filter with one not displaced in phase. The method is also applicable to frequency doubling.
ISSN:0731-5996
0096-8390
2162-6626
DOI:10.1109/JRPROC.1931.222369