Design Of Digital Circuits - Dharmsinh Desai University
Design Of Digital Circuits - Dharmsinh Desai University
Design Of Digital Circuits - Dharmsinh Desai University
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<strong>Design</strong> <strong>Of</strong> <strong>Digital</strong> <strong>Circuits</strong> Lab Manual<br />
EXPERIMENT -1<br />
1 AIM: To make 5 volt DC power supply<br />
2 TOOLS/APPARATUS: Connecting wires, Multimeter, Step-down Transformer, Capacitors ,LED Diode<br />
etc.<br />
3 STANDARD PROCEDURES:<br />
<strong>Design</strong>ing the Solution:<br />
7805<br />
230 V 330 Ω<br />
50 Hz C 1 C 2 C 3 C 4<br />
Stepdown Transformer:<br />
Fig:1.1 Power Supply<br />
It is used to step down the voltage of A.C signal. Here we are using 9 V stepdown<br />
transformers. It converts 230 V A.C signal into 9 V A.C signal.<br />
Bridge Rectifier:<br />
It converts A.C signal into D.C signal. It is full wave rectifier. Here it converts 9 V<br />
A.C signal into 9 V D.C signal.<br />
Capacitors:<br />
After rectification, we don’t get the perfect D.C signal; there is some ripple in it. To<br />
avoid this kind of ripple, we use capacitors. It works as a filter.<br />
Here C 1 =220 µF, 16 V, C 2 =0.1 µF, 10 V, C 3 =100 µF, 10 V , C 4 =0.1 µF, 10 V.<br />
LED Diode:<br />
It is used to check whether the circuit is getting power or not. LED turns on when the<br />
circuit gets power.<br />
4 CONCLUSION:<br />
Finally we get 5 V D.C voltages across LED. We can use this circuit as a 5 V D.C power supply.<br />
Department of Information Technology, Faculty of Technology, D. D. <strong>University</strong>, Nadiad.<br />
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