A note on determination of oscillation startup condition

  • Authors:
  • Vimal Singh

  • Affiliations:
  • Department of Electrical-Electronics Engineering, Atilim University, Ankara, Turkey 06836

  • Venue:
  • Analog Integrated Circuits and Signal Processing
  • Year:
  • 2006

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Abstract

There prevails a widespread notion that, given a closed-loop system, oscillation will commence and build up therein if the magnitude of loop gain is greater than unity at the frequency at which the angle of loop gain is zero degree. Three novel examples in which this notion fails are presented.