DocumentCode
1347058
Title
A study of the transfer function of contact-modulated amplifiers
Author
Krantz, F. H. ; Salati, O. M. ; Berkowitz, R. S.
Author_Institution
Burroughs Corporation, Paoli, Pa.
Volume
76
Issue
1
fYear
1957
fDate
3/1/1957 12:00:00 AM
Firstpage
23
Lastpage
28
Abstract
CONTACT MODULATORS, or ¿choppers,¿ are frequently used in modern circuit design where modulation (or demodulation) at a fixed frequency is required. Their advantages for this service include extremely high ratios of open-circuit to closed-circuit resistance, almost negligible internal noise, and excellent stability and reproducibility. These properties make the contact modulator particularly suitable for use in several types of d-c and a-c amplifiers as well as in d-c servomechanisms employing a-c control elements.
Keywords
Attenuation; Contacts; Equations; Frequency modulation; Phase modulation; Transfer functions;
fLanguage
English
Journal_Title
American Institute of Electrical Engineers, Part II: Applications and Industry, Transactions of the
Publisher
ieee
ISSN
0097-2185
Type
jour
DOI
10.1109/TAI.1957.6367197
Filename
6367197
Link To Document