DocumentCode
1222178
Title
A 60-Hz Harmonic Eliminator
Author
Brown, Paul B. ; Malhotra, Lavi
Author_Institution
Department of Physiology and Biophysics, West Virginia University Medical Center
Issue
4
fYear
1978
fDate
7/1/1978 12:00:00 AM
Firstpage
392
Lastpage
397
Abstract
A 60-Hz harmonic eliminator has been designed to remove dc and 60-Hz line frequency and its harmonics. By triggering a 1024-point sliding average on each cycle of the line voltage, the harmonics of 60 Hz and dc are averaged from the input. This average is then substracted from the input to eliminate these components, leaving the rest of the signal unaffected. The circuit is equivalent to 500 notch filters at every harmonic of 60 Hz with each notch about 48 dB deep and less than 2 Hz wide.
Keywords
Biomedical computing; Biomembranes; Clamps; Contamination; Equations; Frequency; Interference; Power harmonic filters; Steady-state; Voltage; Electrodiagnosis; Electronics;
fLanguage
English
Journal_Title
Biomedical Engineering, IEEE Transactions on
Publisher
ieee
ISSN
0018-9294
Type
jour
DOI
10.1109/TBME.1978.326271
Filename
4122860
Link To Document