EC2091D Devices and Networks Lab
Experiment-4: Clipper and clamper circuits
Aim: To study the diode applications in a clipping and clamping circuits.:
a)
b)
c)
d)
e)
Series negative clipper.
Series positive clipper (with a battery in series)
Parallel clipper with threshold
Double ended clipper.
Negative Clamper.
(a) Series negative clipper:
Circuit Diagram: Use IN4007 diode for D, R= 10 kΩ
Procedure:
1. Connect the circuit as per the circuit diagram
2. Set input signal voltage (5V, 1 kHz , sinusoidal) using signal generator.
3. Observe the output waveform using CRO
4. Sketch the observed waveforms.
5. Repeat the same procedure for square wave input (5V, 1 kHz)
1
Model waveform:
1. Sinusoidal input
2. Square wave input
(b) Series positive clipper (with a battery in series):
Circuit Diagram: Use IN4007 diode, R= 1 kΩ, VRef = 2V.
Procedure:
1. Connect the circuit as per the circuit diagram
2.
3.
4.
5.
Set input signal voltage ( 5V, 1 kHz , sinusoidal) using signal generator.
Observe the output waveform using CRO
Sketch the observed waveforms.
Repeat the same procedure for square wave input (5V, 1 kHz)
Model Graph:
1. Sinusoidal input
3
2. Square wave input
(c) Parallel clipper:
Circuit Diagram: Use IN4007 diode, R= 1 kΩ, VRef = 2V.
Procedure:
1. Connect the circuit as per the circuit diagram
2.
3.
4.
5.
Set input signal voltage (5V, 1 kHz , sinusoidal) using signal generator.
Observe the output waveform using CRO
Sketch the observed waveforms.
Repeat the same procedure for square wave input (5V, 1 kHz)
Model waveform:
1. Sinusoidal input
5
2. Square wave input
(d) Double ended clipper:
Circuit Diagram: Use IN4007 diode, R= 10 kΩ, VRef1 = 2V, Vref2 = 1V
Procedure:
1. Connect the circuit as per the circuit diagram
2.
3.
4.
5.
Set input signal voltage (5V, 1 kHz , sinusoidal) using signal generator.
Observe the output waveform using CRO
Sketch the observed waveforms.
Repeat the same procedure for square wave input (5V, 1 kHz)
Model Graph:
1. Sinusoidal input
2. Square wave input
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(e) Negative Clamper:
Circuit Diagram: R= 1 kΩ; D =IN4007, 𝐶 = 1μ𝐹.
Procedure:
1. Connect the circuit as per the circuit diagram
2.
3.
4.
5.
Set input signal voltage (5V, 1 kHz , sinusoidal) using signal generator.
Observe the output waveform using CRO
Sketch the observed waveforms.
Repeat the same procedure for square wave input (5V, 1 kHz)
Model waveform:
1. Sinusoidal input
2. Square wave input.
9