Limiter Circuits
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A clipper diode is an electronic circuit that is designed to “clip” or limit part of the input waveform without distorting the remaining part of the signal. It uses a diode (sometimes with resistors or voltage sources) to remove or limit voltage levels above or below a certain value.
:How it works💡
-When the input voltage exceeds the diode's threshold (forward bias), the diode conducts, and part of the signal is bypassed.
-When the input is below the threshold (reverse bias), the diode blocks, and the signal passes unaffected.
Thus, clippers are also called limiter circuits, because they prevent the output signal from exceeding a preset level.
⚡️Types of Clippers
1.Series Clipper – Diode is in series with the load.
2.Shunt Clipper – Diode is in parallel (shunt) with the load.
3.Biased Clipper – Clips signal beyond a fixed DC reference voltage.
4.Combination Clipper – Clips both positive and negative cycles at different levels.
⚡️Applications of Clipper Circuits
1-Noise Elimination – To remove unwanted voltage spikes from signals.
2-Wave Shaping – To convert sine waves into square or other waveforms.
3-Protective Circuits – To prevent voltage from exceeding safe levels (over-voltage protection).
4-Digital Signal Processing – To set voltage levels suitable for logic circuits.
5-Communication Systems – To limit the amplitude of signals and avoid distortion.
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