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Basic Electronic Oscillators

  • Donald O. Pederson
  • Kartikeya Mayaram

Abstract

The possibility of instabilities in amplifiers has been introduced earlier. Because of internal feedback in the active devices, external feedback paths, or connections in the amplifier, a feedback signal proportional to the output is produced. If this feedback signal is in phase with the input, a regenerative situation exists, and if the magnitude of the feedback is large enough, an unstable circuit is obtained. That is, if any input, including noise, is applied to or is present in a circuit which is initially at rest, growing transients occur. After a period of time, these growing transients are sufficiently large to produce a nonlinear response of the circuit elements, and these nonlinearities finally stop the growth of the signals. Eventually, then, steady-state oscillations can occur, and the circuit becomes an (unwanted) oscillator.

Keywords

Output Voltage Fourier Component Total Harmonic Distortion Tunnel Diode Oscillator Circuit 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Donald O. Pederson
    • 1
  • Kartikeya Mayaram
    • 2
  1. 1.University of CaliforniaBerkeleyUSA
  2. 2.Oregon State UniversityCorvallisUSA

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