Experiment_5

# Experiment_5 - Experiment 5. Diode and Logic Experiment...

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Experiment 5. Diode and Logic Experiment 5-1: Characteristics of Diodes and Photonic Components 1. Objective of Experiment A. To understand the characteristics, operational principles, and current-voltage relations of p-n diode and Zener diode. B. To understand the principles of photonic components such as light-emitting-diode (LED) and 7-segment display C. To identify the characteristics of photo diode and photo coupler, and to understand the signal transmission by photo coupler 2. Tasks A. Characterization of Si and Ge diode B. Characterization of Zener diode C. Characterization of photo detector, luminous element, and photo isolator 3. Equipment and Parts A. Oscilloscope B. Function Generator C. Power supply D. Registers and variable resistor (R=25kΩ) E. Diode (Si, Ge, and Zener diode) 4. Theory Refer to the following references A. Korean Lab Book (기계공학도를 위한 전자공학실험) B. Chapter 9, Giorgio Rizzoni, Principles and Applications of Electrical Engineering 5 th Ed. 5. Experimental Procedure 5.1. Characteristics of Diode A. Construct a circuit as shown in Figure 16 with a diode and set the variable resistor R p to its minimum resistance B. Increase R p to make I f = 0.1, 0.2, 0.4, 0.8, 1.0, 2.0, 4.0, 6.0, 8.0, and 10mA (Fill in Table 1), then measure V f . C. Construct a reverse bias circuit shown Figure 17 and set the variable resistor R p to its minimum resistance D. Increase R p slowly to measure V f = 5, 10, 15, 20, 25, 30V (Fill in Table 1)

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5.2 Characteristics and Applications of Zener Diode A. Construct a circuit shown in Figure 18 (a) and measure V f for I f = 0.1, 0.2, 0.4, 0.6, 0.8, 1.0, 2.0, 4.0, 6.0, 8.0, 10.0mA (Fill in Table 2). B. Construct a circuit shown in Figure 18 (b) and measure I r while increasing V r up to Zener breakdown voltage. Neat the Zener breakdown voltage, use small increments and measure the values precisely (Fill in Table 2). 5.3 Characteristics of Photonic Components – Seven Segment Display
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## This note was uploaded on 11/21/2010 for the course MECHANICAL mae302 taught by Professor Jang during the Spring '10 term at Seoul National.

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Experiment_5 - Experiment 5. Diode and Logic Experiment...

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