Experiment 1 Module I Tutorial I Wave Shaping Circuits Objectives: To Design and test the clipping and clamping circuits Case 1: Demonstrate a positive, negative source signal clipping circuits to clip the input AC waveforms in series and shunt ways. Use a DC source of 5V. Design Steps: Use diode 1N4007, with maximum current IMAX=5mA along with a DC source of VDC=5V Use a sine wave source of 10V peak. Maximum diode current IMAX=5mA= −5 = 10−5 R=1KΩ. Clipping Circuits: Procedure: Place the components on bread board, and connect them as shown in the circuit diagram. Set the source to supply a sine wave of 10 V peak and 1 KHz frequency. Set the DC voltage to 5 V in case of the cases Connect the input and output of the circuit to the two channels of the CRO to observe the input and output waveforms. Measure the voltage amplitude, clipping voltage using CRO.(Note: Both the channel ground should be common) Set the CRO to display in XY mode to observe the transfer characteristics.(both the channels are set to same attenuation factor) Repeat the same for all the clipping circuits. R=1K Vi 5V V O Fig 1.1 R=1K Vi 5V V O Fig 1.3
Transcript
Experiment 1 Module I Tutorial I
Wave Shaping Circuits Objectives: To Design and test the clipping and clamping circuits Case 1: Demonstrate a positive, negative source signal clipping circuits to clip the input AC waveforms in series and shunt ways. Use a DC source of 5V. Design Steps: Use diode 1N4007, with maximum current IMAX=5mA along with a DC source of VDC=5V Use a sine wave source of 10V peak.
Maximum diode current IMAX=5mA= 𝑣𝑖𝑀𝐴𝑋−5
𝑅= 10−5
𝑅 R=1KΩ.
Clipping Circuits: Procedure:
Place the components on bread board, and connect them as shown in the circuit diagram.
Set the source to supply a sine wave of 10 V peak and 1 KHz frequency. Set the DC voltage to 5 V in case of the cases Connect the input and output of the circuit to the two channels of the CRO to
observe the input and output waveforms. Measure the voltage amplitude, clipping voltage using CRO.(Note: Both the channel ground should be common)
Set the CRO to display in XY mode to observe the transfer characteristics.(both the channels are set to same attenuation factor)
Repeat the same for all the clipping circuits.
R=1K
Vi
5V
VO
Fig 1.1
R=1KVi
5V
VO
Fig 1.3
Case 2: Design a clipper circuit to clip the input signal between two independent levels (VR1=5V> VR2=2V). Design steps: Use R=1K and Vi=10sin (2000𝜋t)
Procedure: Connect the circuit on the breadboard as shown in the circuit diagram. Set the source to supply a sine wave of 10 V peak and suitable frequency. Connect the input and output of the circuit to the two channels of the CRO to
observe the input and output waveforms. Measure the voltage amplitude, clipping voltage using CRO.
Set the CRO to display in XY mode to observe the transfer characteristics. Repeat the same for all the clipping circuits.
Case 3: Demonstrate a positive, negative and biased source signal clamping circuits to clamp the input square waveforms .Use a DC source of 3V. Study of clamping circuits Procedure:
Use the breadboard to place and connect the components as shown in circuit diagram.
Switch on the circuit and the function generator and set the waveforms to required amplitude of 10V P-P and frequency of 1 kHz.
vi
R
VR
1=
5V
VR
2=
2V
D1D2
V0
Fig 1.5
0.47uF
Vi
Vo
Fig 1.6
0.47uF
Vi
Vo
3V
Fig 1.7
Use two channels of the CRO to observe the input and output of the circuit waveform. (in DC mode only)
Repeat the procedure for all the other circuits.
Observation/Conclusion:
Assignment:
1. Change the VR2= -2Vin the circuit shown in fig 1.5, observe the output waveform and
transfer characteristic. Hence write the conclusion
2. Reverse the bias voltage (VDC= -3V) in the circuit shown in fig 1.7 and 1.8, observe the output wave form and give the reason.
3. Simulate all the circuits in tutorial 1 (Figure 1.1 to Figure 1.9) using PSpice schematics.
Perform the time domain (transient) analysis. Compare the test and simulated results.
Fig 1.4
R=1KVi
5V
VO
R=1K
Vi
5V
VO
Fig 1.2
0.47uF
Vi
Vo
3V
Fig 1.9Fig 1.8
0.47uF
Vi
Vo
w x y z
1 2 1
2
3
3 4
5 6
9 8
1
1213
34
5
2
6
1
2
3 4
5
6
EXPERIMENT 2
Module II
DIGITAL SYSTEM DESIGN USING SSI/MSI
Tutorial 1
Combinational Circuit Design Using Logic Gates
Objectives: To design, build and test simple combinational circuits using logic gates
1. Realize the Boolean function f (W, X, Y, Z) = ∑m (1, 3, 5, 7, 8, 12, 14) using
