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Non-Linear Wave Shaping Circuits Clippers AIM

This document describes an experiment to study different types of clipping circuits using diodes. It includes the aim, apparatus, theory, circuit diagrams, procedures, precautions, and results. The types of clipping circuits studied are series diode clipper, shunt diode clipper, series/shunt clipper with positive reference voltage, and double diode clipper. The transfer characteristics of each circuit are observed on an oscilloscope and their output waveforms are analyzed.

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neha yarrapothu
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1K views5 pages

Non-Linear Wave Shaping Circuits Clippers AIM

This document describes an experiment to study different types of clipping circuits using diodes. It includes the aim, apparatus, theory, circuit diagrams, procedures, precautions, and results. The types of clipping circuits studied are series diode clipper, shunt diode clipper, series/shunt clipper with positive reference voltage, and double diode clipper. The transfer characteristics of each circuit are observed on an oscilloscope and their output waveforms are analyzed.

Uploaded by

neha yarrapothu
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOC, PDF, TXT or read online on Scribd
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G.N.I.T.

S – ETE DEPARTMENT

NON-LINEAR WAVE SHAPING CIRCUITS


CLIPPERS

AIM:
a) To study the clipping circuits using diodes
b) To observe the transfer characteristics of all the clipping circuits
in CRO.

APPARATUS:
1. Function Generator
2. Bread board
3. CRO
4. DC power supply (dual)
5. Resistors (2.2 K)
6. Diodes (1N4007)
7. Connecting wires
8. CRO Probes

THEORY:
Clipping circuits basically limit the amplitude of the input signal either
below or above certain voltage level. They are referred to as Voltage
limiters, Amplitude selectors or Slicers. A clipping circuit is one, in which a
small section of input waveform is missing or cut or truncated at the out put
section.
Clipping circuits are classified based on the position of Diode.
1. Series Diode Clipper
2. Shunt Diode Clipper

Input Wave Form


G.N.I.T.S – ETE DEPARTMENT

CIRCUIT TRANSFER O/P WAVEFORMS


DIAGRAM CHARACTERISTICS
Series –ve clipper

Series +ve clipper

Shunt +ve clipper

Shunt -ve clipper


G.N.I.T.S – ETE DEPARTMENT

CIRCUIT TRANSFER O/P WAVEFORMS


DIAGRAM CHARACTERISTICS
Series +ve clipper with +VR

Series -ve clipper with +VR

Shunt -ve clipper with +VR


G.N.I.T.S – ETE DEPARTMENT

Shunt +ve clipper with +VR

CIRCUIT TRANSFER O/P WAVEFORMS


DIAGRAM CHARACTERISTICS
Double diode clipper

PROCEDURE:

1. Connect the circuit as shown in fig.1


2. In each case apply 10 V P-P, 1KHz Sine wave I/P using a signal
generator.
3. Observe the O/P waveform in DC mode on the CRO in comparison
with I/P waveform.
4. Sketch the I/P as well as O/P waveforms and mark the numerical
values.
5. Note the changes in the O/P due to variations in the reference
voltage VR = 2V.
6. O/P is taken across the load RL.
7. To Obtain the transfer characteristics for all the figures follow
the procedure.
8. Apply input to the X-Channel(CH2), Output to Y-Channel(CH1), then
select XY mode button in the CRO.
G.N.I.T.S – ETE DEPARTMENT

9. Keep both the channels (CH1 & CH2) in GND position, adjust the
dot at the center of the CRO screen. then release ground button
and plot the transfer characteristics.
10. Repeat the above steps for all the figures.

PRECAUTIONS:

1. Set the CRO O/P channel in DC mode always.


2. Observe the waveform simultaneously by keeping common ground.
3. See that there is no DC component in the I/P.
4. To find transfer characteristics apply input to the X-
Channel(CH2), O/P to Y-Channel(CH1), Both the channels modes
must be in ground, adjust the dot at the center of the screen when
CRO is in X-Y mode. then remove ground and plot the transfer
characteristics.

RESULT: Different types of clipping circuits have been studied and


observed the responses for various combinations of VR and clipping diodes.

Reasoning Questions

1. What is a clipping circuit?

2. What is piecewise linear mode of a diode?

3. What is a break region?

4. What is the significance of zero slope?

5. In a clipper circuit what is the function of non-linear device.

6. Compare the Series & Shunt Clippers.

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