Computer · Sinusoidal Oscillators
Consider a practical LC oscillator tank circuit driven by an active device that provides regenerative feedback. Which statement best describes the mechanism that establishes a steady-state oscillation amplitude?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Feedback energy has no role in determining or limiting the steady-state amplitude of oscillations.
- 2Regenerative feedback completely eliminates all physical losses in the inductor and capacitor.
- 3Feedback energy continuously increases the oscillation amplitude indefinitely without limit.
- 4The active device supplies energy to compensate for tank circuit losses, and nonlinearity in the active device reduces gain at higher amplitudes to reach a stable equilibrium.✓
Correct answer
The active device supplies energy to compensate for tank circuit losses, and nonlinearity in the active device reduces gain at higher amplitudes to reach a stable equilibrium.
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