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Analysis of instability in feedforward loop

Research output: Contribution to journalArticle

Original languageEnglish
Pages (from-to)1669 - 1671
JournalElectronics Letters
Journal issue20
StatePublished - Sep 1997


Although the feedforward system is theoretically unconditionally stable, there are circumstances under which oscillation can occur. These oscillations are possible in both the error-determining loop and the error-cancellation loop and may occur in-band or out-of-band depending upon the parameters of the design. The authors analyse the circumstances under which oscillation is possible, and highlight the corrective action which may be taken in order to eliminate the possibility of its occurrence

Additional information

Publisher: Institution of Electrical Engineers (IEE) Rose publication type: Journal article Sponsorship: The authors are grateful to J.P. McGeehan for the provision of laboratory facilities and to M. Beach for helpful comments during the work. The authors are also grateful to the following organisations for funding in support of the work: DERA, EPSRC and the European Commission

Research areas

  • circuit oscillations, circuit stability, feedforward, radiofrequency amplifiers




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