Diode ClipperMediumQuestion 20268
Question
A positive clipper circuit clips the positive half of an input AC signal by:
- AUsing a capacitor
- BPlacing a forward-biased diode in parallel with the output to clamp positive voltages near zeroCorrect
- CUsing a transformer
- DUsing an inductor
Correct answer
Placing a forward-biased diode in parallel with the output to clamp positive voltages near zero
Explanation
Positive clipper: diode in parallel with load, anode grounded. When V_in goes positive, diode conducts → output ≈ V_forward ≈ 0.7 V (Si). Negative half cycle passes unchanged. Used in signal processing to remove one polarity of a waveform.