pspice simulation of diode circuits a. background b...

1-1

İzmir University of Economics

EEE 206 Introduction to Electronics Circuits Lab

EXPERIMENT 1

PSPICE Simulation of Diode Circuits

A. Background

Download, print and read the tutorial on the usage of ORCAD/PSPICE available at

http://homes.ieu.edu.tr/~maskar/ETE206/General/ORCAD-PSPICE-Tutorial.pdf

B. Preliminary Work 1. Half-wave Rectifier: Consider the half-wave rectifier given in Fig. 1.1. Assume the diode is

ideal and a sinusoidal voltage is applied to the input. Plot the input and output voltage

waveforms on Fig. 1.2.

VS(t) = 10cos 2π x 50 t volts

R = 10 kΩ

Fig. 1.1. Half-wave Rectifier

Fig. 1.2. Input and Output Voltage Waveforms at Half-wave Rectifier

VS

D

+

VO -

R

1-2

2. Half-wave Rectifier with Filter: Assume a capacitor is added to the output of the half-

wave rectifier as shown in Fig. 1.3. Assume the diode is ideal and a sinusoidal voltage is

applied to the input. Plot the input and output voltage waveforms on Fig. 1.4.


R = 1 kΩ

C = 200 µF

Fig. 1.3. Half-wave Rectifier with Filter

Fig. 1.4. Input and Output Voltage Waveforms

3. Full-wave Rectifier: Consider the full-wave rectifier given in Fig. 1.5. Assume the diode is




R = 1 kΩ

Fig. 1.5. Full-wave Rectifier

VS

D

+

VO -

R

VS

D

+

VO -

R C

1-3


4. Full-wave Rectifier with Filter: Assume a capacitor is added to the output of the full-wave

rectifier as shown in Fig. 1.7. Assume the diode is ideal and a sinusoidal voltage is applied

to the input. Plot the input and output voltage waveforms on Fig. 1.8.


R = 1 kΩ

C = 200 µF

Fig. 1.7. Full-wave Rectifier with Filter


VS

D

+

VO -

R C

1-4

C. Experimental Work

C.1. Part 1: Half-Wave Rectifier

1. Construct the given circuit below (Fig. 1.9) in ORCAD by following the steps.

Fig. 1.9

2. Select File >> New >> Project. Name your project (Fig. 1.10) as

“Half_Wave_Rectifier_NAME_SURNAME”. As the location field, select the directory as

”D:\MYWORKS\CE206_ORCAD”. Be sure that you selected “Analog or Mixed A/D”.

Fig. 1.10

D1

D1N914

R11k

V1

FREQ = 100VAMPL = 10VOFF = 0

0

VV

1-5

3. Now, select “Create a blank project” at the appeared diagram box (Fig. 1.12).

Fig. 1.11

4. Add a sinusoidal voltage source (VSIN) and a resistor(R) to your circuit as described in

the ORCAD/PSPICE Tutorial. To work your circuit properly, don’t forget to add Ground

to your circuit.

5. Set the parameters as shown in Fig. 1.12. (Your laboratory work parameters will be

assigned to you during the Laboratory Work

Fig. 1.12

6. After the construction of circuit, create a new profile using Pspice >> New Simulation

Profile from toolbar (Fig. 1.13). Write “Half_Wave_Rectifier_NAME_SURNAME” for

New Simulation Name.

Fig. 1.13

R11k

V1


0

D1

D1N914

VV

1-6

7. Set the simulation settings as given in Fig. 1.14

Fig. 1.14

8. Run your program by using toolbar as Pspice >> Run.

Prepare a lab report based on the following format.

Insert your circuit schematic and simulation results below (The capture method is given in

ORCAD/PSPICE Tutorial.

1-7

Report: Part 1 - Half-Wave Rectifier

i. Circuit Schematic

Insert Your Circuit Schematic Here

ii. Simulation Results

Insert Your Simulation Results Here

iii. Discussions

C.2. Part 2: Half-Wave Rectifier with Filter

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1. Add a capacitor to the output of the half-wave rectifier as shown in Fig. 1.15

Fig. 1.15

2. Can you observe the ripples at the output? How do they change with different

capacitance values? Discuss this issue in the Discussions box.


V1

FREQ = 100VAMPL = 10VOFF = 0 R1

1k

D1

D1N914

0

C11u

VV

1-9

Report: Part 2 - Half-Wave Rectifier with Filter

Insert your circuit schematic and simulation results below.





iii. Discussions

1-10

C.3. Part 3: Full-Wave Rectifier

1. In Fig. 1.16, a regulator circuit with full wave rectifier is given. Construct this circuit using

the knowledge of preceding sections. Run the circuit for before and after connecting of

capacitor (To define a single ground point in the circuit, a very large resistor (100 MΩ) is

added to the output, since the voltage drop across it is negligibly small)

Fig. 1.16

Insert your circuit schematic and simulation resultrs on the report below.

D1

D1N914

D2

D1N914

D3

D1N914

D4

D1N914

R11k

V1

FREQ = 1kVAMPL = 10VOFF = 0

0

R2100M

C11u

V

V-

V+

1-11

Report: Part 3 - Full-Wave Rectifier

i. Circuit Schematic (Full-Wave Rectifier without Capacitor)


ii. Simulation Results (Full-Wave Rectifier without Capacitor)


iii. Discussions (Full-Wave Rectifier without Capacitor)

1-12

iv. Circuit Schematic (Full-Wave Rectifier with Capacitor)


v. Simulation Results (Full-Wave Rectifier with Capacitor)


vi. Discussions (Full-Wave Rectifier with Capacitor)

1-1



EXPERIMENT 1


A. Background







R = 10 kΩ



VS

D

+

VO -

R

1-2





R = 1 kΩ

C = 200 µF







R = 1 kΩ


VS

D

+

VO -

R

VS

D

+

VO -

R C

1-3






R = 1 kΩ

C = 200 µF



VS

D

+

VO -

R C

1-4




Fig. 1.9




Fig. 1.10

D1

D1N914

R11k

V1


0

VV

1-5


Fig. 1.11



to your circuit.



Fig. 1.12




Fig. 1.13

R11k

V1


0

D1

D1N914

VV

1-6


Fig. 1.14





1-7






iii. Discussions


1-8


Fig. 1.15




V1


1k

D1

D1N914

0

C11u

VV

1-9







iii. Discussions

1-10






Fig. 1.16


D1

D1N914

D2

D1N914

D3

D1N914

D4

D1N914

R11k

V1


0

R2100M

C11u

V

V-

V+

1-11







1-12




