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9: Oscillators and Frequency Generators

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After completing this chapter, you should be able to:

• Explain the differences between positive and negative feedback.
• Define the Barkhausen criterion, and relate it to individual circuits.
• Detail the need for level-detecting circuitry in a practical oscillator.
• Analyze the operation of Wien bridge and phase shift op amp oscillators.
• Analyze the operation of comparator-based op amp oscillators.
• Detail which factors contribute to the accuracy of a given oscillator.
• Explain the operation of a VCO.
• Explain the operation of a PLL, and define the terms capture range and lock range.
• Explain the operation of basic timers and waveform generators.

This page titled 9: Oscillators and Frequency Generators is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by James M. Fiore via source content that was edited to the style and standards of the LibreTexts platform; a detailed edit history is available upon request.

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