| Laboratory Assignments
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| Experiment 12: The Zener Diode |
- Download the Up-down Analyzer for Exp 12. (Note: this program is the same as the Up-down Analyzer of Chap. 5 in the Text programs.)
- Start the Launcher. Then, go to the Lab Menu and select Exp 12.
- Use the Up-down Analyzer to solve the following problems.
- Remember to click the HOME button before starting each problem.
- Problem 1:
What does IS equal when VS is 27 V?
- Problem 2:
What is the load resistance that produces a zener current of 1 mA?
- Problem 3:
If RS is too high, regulation is lost. For what value of RS does this occur?
- Problem 4:
Design a circuit that meets these specifications: VS = 24 V, VL = 9 V, IL = 5 mA, IZ = 20 mA, and RZ = 0.005RL. What are the values of RS, RL, and RZ? What is the nearest standard zener diode that can be used for this application? (See data sheets at end of lab manual).
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| Experiment 13: The Zener Regulator |
- Download the T-shooter for Exp 13 if you have not already done so. (Note: this program is the same as the T-shooter of Chap. 5 in the Text programs.)
- Start the Launcher. Then, go to the Lab Menu and select Exp 13.
- Take the troubleshooting test.
- Repeat the test until your score equals or exceeds the Expert score.
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| Experiment 14: Optoelectronic Devices |
- Download the Seven-segment Indicator for Exp 14.
- Run Exp 14 (use the Launcher to start it).
- Use the Seven-segment Indicator to solve the following problems.
- Problem 1:
Become familiar with the seven-segment indicator by using the Segment Menu to activate different segments. Change the color of the indicator with the Color Menu. Use Clear All in the Segment Menu to turn off all segments.
- Problem 2:
Use the color red. Activate segments as needed to indicate 3. What segments did you use?
- Problem 3:
Use the color green. Activate segments as needed to indicate 9. What segments are active?
- Problem 4:
Besides being able to display numerals 0 to 9, a seven-segment indicator can display some alphabet letters.
Use the color yellow. Activate the segments to get a capital A. What segments did you use?
- Problem 5: Use the color blue. Activate the segments to get a lower-case d. What segments are active?
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| Experiment 15: The CE Connection |
- Download the Up-down Analyzer for Exp 15. (Note: this program is the same as the Up-down Analyzer of Chap. 6 in the Text programs.)
- Start the Launcher. Then, go to the Lab Menu and select Exp 15.
- Use the Up-down Analyzer to solve the following problems.
- Remember to click the HOME button before starting each problem.
- Problem 1:
What does IC equal when RB is 680 kohms?
- Problem 2:
What is the collector resistance that produces a collector voltage of 10 V?
- Problem 3:
If the dc beta is 50, what does IB equal? What does IC equal?
- Problem 4:
Design a circuit that meets these specifications: VBB = 9 V, VCC = 24 V, BE = 150, VBE = 0.7 V, RC = 2.7 kohms, and VCE = 12 V. What is the value of RB? What are the values of IB and IC?
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| Experiment 16: Transistor Operating Regions |
- Download the Up-down Analyzer for Exp 16. (Note: this program is the same as the Up-down Analyzer of Chap. 6 in the Text programs.)
- Start the Launcher. Then, go to the Lab Menu and select Exp 16.
- Use the Up-down Analyzer to solve the following problems.
- Remember to click the HOME button before starting each problem.
- Problem 1: If RB is changed to 270 kohms, in what region does the transistor operate?
- Problem 2: If VBB is changed to 0.5 V, in what region does the transistor operate?
- Problem 3: If the dc beta is 300, in what region does the transistor operate?
- Problem 4: If RC = 1 kohm, in what region does the transistor operate?
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Electronic Principles > Lab Assignments > Assignments 12-16
