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Electronics Lab Essay

897 words - 4 pages

Abu Dhabi University Collage of Engineering& Computer Science

Course: Electronic Devices & Circuits Course ID: CEN304

Course Lecturer: Dr.Montasir Qasymeh

Lab 1: DC& ACCharacteristics of Diodes

Prepared by: Eng. Ahmed Sweleh Date: 20/9/2012
1

Objectives:
This lab aims to educate the student in the following:1. 2. 3. 4. Putting the diodein reverse bias and forward bias. Measuring forward current (IF) and reverse current (IR). Observing the AC characteristics of a diode. Plotting the characteristic curve of a diode.

Tools:
For this lab the following tools will be used:1. 2. 3. 4. 5. 6. 7. 8. 9. Breadboard Digital Multi Meter DC Power Supply Function Generator Oscilloscope ...view middle of the document...

To do that first disconnect the red probe from the (HzVΩ) terminal of your multi meter and connect it to the multi meter’s (mAuA) terminal of your multi meter and move the dial to the (mA) sign an fallow the coming steps: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Connect the circuit shown in Figure 3-A. Turn on the circuit. Connect the multi meter’s terminal (mAuA) to diodes “-“terminal. Connect the multi meter’s terminal (COM) to ground terminal from the power supply. Now move the voltage curser slowly from 0V to 10V. Write down the value of current that the multi meter displays at the voltage value shown in Table 2. Turn off the circuit. Connect the circuit shown in Figure 3-B by simply reversing the diodes connections Turn on the circuit. Now move the voltage curser slowly from 10V to 0V. Write down the value of current that the multi meter displays at the voltage value shown in Table 2. Turn off the circuit.
2 V1 10 V 0 XMM1 5 Forward biase A Reverse biase B 6 R1 1kΩ Vf 1 D2 DIODE_VIRTUAL 4 V2 10 V 0 XMM2 R2 1kΩ Vr 3 D1 DIODE_VIRTUAL

Figure 3

4

Table 2

Forward bias Voltage(v) 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 7 8 9 10

IF

Reverse bias Voltage(v) -0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 -0.9 -1 -2 -3 -4 -7 -8 -9 -10

IR

5

3. Observing the AC characteristics of a diode. To observe the AC characteristics of the diode, do the following steps:...

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