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Analog ElectronicsWave-Shaping Circuits

A diode limiter is commonly used in analog circuits to?

  • ARestrict signal amplitude beyond selected levels
  • BIncrease all signal amplitudes linearly
  • CGenerate a constant current mirror
  • DProvide galvanic isolation
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Correct Answer: A. Restrict signal amplitude beyond selected levels
Explanation: Limiter or clipper circuits use diode conduction to constrain waveform excursions above or below chosen threshold levels.
Reference: Standard analog electronics: diode limiter
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