EXPERIMENT 02

Title of the Experiment: Design and simulate positive  and negative clippers  using diodes with Input signal of 5V peak sine wave at 1 kHz and assume suitable reference voltage. Plot the output waveforms and transfer curve.

 Aim or Objective: Design and simulate positive and negative clippers using diodes with 

•  input signal of 5V peak

• Sine wave at 1 kHz and assume suitable reference voltage.  

• Plot the output waveforms and transfer curve.

 a) Identify and compare series and parallel diode clippers and understand their respective behaviors in signal clipping.

 b) Observe and interpret the input and output waveforms, understanding how the clipping level is determined by the diode orientation and reference voltage 

Circuit for series positive clipper 

Series positive clipper with bias 

2. Series Negative Clipper 

3. Shunt/Parallel positive clipper 

3. Shunt/Parallel positive clipper with bias

4. Shunt/Parallel Negative Clipper

 Results and discussion: 

For all the circuits (Series and Shunt Clippers: Positive and Negative), the observed clipped portion of the input signal matches the expected theoretical behavior based on the reference voltage .

1. Series Positive Clipper: The signal above the reference voltage  is clipped.

2. Series Negative Clipper: The signal below the reference voltage  is clipped.

3. Shunt Positive Clipper: The signal above the reference voltage  is shunted or removed.

4. Shunt Negative Clipper: The signal below the reference voltage  is shunted or removed.

Conclusion: 

1. Series Clippers:

The Series Positive Clipper removes the positive portion of the input signal above , while the Series Negative Clipper removes the negative portion below .

These circuits are useful for modifying waveforms or protecting sensitive components from excessive voltage.

2. Shunt Clippers:

The Shunt Positive Clipper removes or shunts the positive portion above , while the Shunt Negative Clipper removes the negative portion below .

These circuits are effective in applications like voltage limiting and waveform shaping.

3. By changing the reference voltage or adding bias, the clipping level can be adjusted to meet specific design requirements.

These circuits are commonly used in signal processing, communication systems, and as voltage protection mechanisms.