Experiment No: 8 Electronic Workshop

YouTube Link : https://www.youtube.com/watch?v=GsIJwb5C3EU

Experiment No: 8

Assembling and Testing of simple electronic circuits on breadboards; identifying the components and its location on the PCB, Soldering of the components, testing the assembled circuit for correct functionality.

Aim:

a)      Design the LED Blinking circuit on breadboard.

b)      Design the LED Blinking circuit on PCB using Soldering Iron

Components and Equipments Required:

S.NO	Components / Equipments	Range	Quantity
1	Regulated Power Supply or 9V Battery	9V	1
2	LEDs	--	2
3	Resistors	47KΩ, 470Ω	Each 2
4	Transistors BC 107	--	2
5	Bread Board	--	1
6	Soldering Iron	--	1
7	General PCB Board	--	1
8	Led wire	--	--

                                                                                                                                          

Theory:

Circuit Diagram 1:

Procedure:

Part 1:

1. Connections are made as per the circuit diagram1.
2. The RPS +ve is connected to the one end of the resistors and RPS –ve is connected to the Transistors' emitter ends.
3. Switch on the power supply and increases the input voltage (supply voltage).
4. Observe the LEDs Blinking.
5.  Repeat the same procedure in PCB

Practical Calculations:

S.NO	R1	R2	C1	C2	T1	T2	f1	f2

T₁=R₁C₁ ln 2

T₂=R₂C₂ ln 2

If R₁ = R_2, C₁= C₂

find

T=

F=

Precautions:

1. Connections are made as per the circuit diagram and should be tight.

2. Do not connect power to a circuit until the circuit is finished and never work on a circuit while power is applied.

3. If anything is burning, immediately disconnect the power and examine your circuit to find out the problem.

Outcomes:

Results: