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L-C Oscillators

L-C Oscillators

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Oscillators using resonators constructed from inductors and capacitors find wide application in electronic systems. L-C oscillators are more stable than R-C oscillators for both the long and the short term. As a consequence, L-C oscillators are almost exclusively used for general oscillator applications above the lower-frequency limit for which inductors are practical in size. Economic high quality capacitors are available for a wide range of values and seldom affect oscillator design as much as inductors. At low frequencies, the value of inductance required for reasonable reactance becomes large. Cores using magnetic materials help decrease the practical lower-frequency limit.

Chapter Contents:

  • 8.1 Capacitors
  • 8.2 Inductors
  • 8.3 L-C Colpitts Oscillator
  • 8.3.1 Output Coupling
  • 8.4 L-C Clapp Oscillator
  • 8.4.1 Tuning
  • 8.4.2 Output Coupling
  • 8.4.3 Circuit Vagaries
  • 8.4.4 Operating Frequency
  • 8.5 L-C Bipolar Transistor Oscillator
  • 8.5.1 Tuning
  • 8.5.2 Coupling Capacitor Inductance
  • 8.5.3 Coupling the Phrase
  • 8.5.4 The Bipolar Amplifier
  • 8.6 L-C Hybrid Oscillator
  • 8.7 References

Inspec keywords: magnetic materials; capacitors; resonators; oscillators; inductors; magnetic cores

Other keywords: general oscillator applications; inductors; oscillator design; RC oscillators; lower-frequency limit; economic high-quality capacitors; LC oscillators; electronic systems; inductance value; resonators; capacitors; magnetic materials

Subjects: Inductors and transformers; Capacitors; Oscillators; Waveguide and microwave transmission line components; Magnetic materials; Magnetic cores

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