Oscillator Flashcards

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Flashcards covering key vocabulary and concepts related to oscillators, Barkhausen criteria, and Wien-bridge oscillators.

Last updated 5:05 PM on 7/21/25
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5 Terms

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Barkhausen Criteria

The conditions under which a closed loop circuit will oscillate; Magnitude: |K(ω)/β| = 1 and Phase: ∠K(ω)/β = 0°

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Open Loop Gain (A0)

The gain of an amplifier without any feedback.

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Negative Feedback Path (β)

A portion of the output signal that is fed back to the input with a negative sign.

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Positive Feedback Path (K(ω))

A frequency-selective path that feeds a portion of the output signal back to the input with a positive sign.

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Wien-Bridge Oscillator

A type of oscillator circuit that uses a Wien bridge network to provide positive feedback and generate sinusoidal oscillations.