Laboratory Assignments

Experiment 17: Base Bias

Download the Up-down Analyzer for Exp 17. (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 17. 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 the dc beta is 50? When it equals 125? Problem 2: What does VCE equal when the dc beta is 75? Problem 3: If RC is changed to 10 ohms, what VCE equal? If RC is changed to 10 kohms, what does VCE equal? Problem 4: Design a circuit that meets these specifications: VBB = 18 V, VCC = 18 V, BE = 200, VBE = 0.7 V, RC = 1 kohms, and VCE = 9 V. What is the value of RB? What are the values of IB and IC?

Experiment 18: Emitter Bias

Download the Up-down Analyzer for Exp 18. (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 18. 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 RE equals 270 ohms? Problem 2: What does VCE equal when the RE is changed to 220 ohms? Problem 3: If RC is changed to 1 kohm, what VCE equal? Problem 4: Design a circuit that meets these specifications: VBB = 1.8 V, VCC = 10 V, BE = 200, VBE = 0.7 V, RC = 1 kohms, and VC = 9 V. What is the value of RE? What are the values of IB and IC?

Experiment 19: Setting Up a Stable Q-Point

Download the T-shooter for Exp 19 if you have not already done so. (Note: this program is the same as the T-shooter of Chap. 8 in the Text programs.) Start the Launcher. Then, go to the Lab Menu and select Exp 19. Take the troubleshooting test. Repeat the test until your score equals or exceeds the Expert score.

Experiment 20: PNP Voltage-Divider Bias

Download the Up-down Analyzer for Exp 20. Start the Launcher. Then, go to the Lab Menu and select Exp 20. Use the Up-down Analyzer to solve the following problems. Remember to click the HOME button before starting each problem. Problem 1: What does IE equal when RE is changed to 2.2 kohm? Problem 2: What does VB equal when the dc beta is 75? Problem 3: What are the minimum and maximum values of VC when the dc beta is varied from 100 to 400? Problem 4: Design a circuit that meets these specifications: VCC = 20 V, VBE = 0.7 V, VE = 2 V, VC = 11 V, and IC = 10 mA. What are the values of RE and RC.

Experiment 21: Transistor Bias

Download the Up-down Analyzer for Exp 21. Start the Launcher. Then, go to the Lab Menu and select Exp 21. Use the Up-down Analyzer to solve the following problems. Remember to click the HOME button before starting each problem. Problem 1: What does VC equal when RB is changed to 390 kohm? Problem 2: What does IC equal when RC is 2.2 kohm? Problem 3: What is the power dissipation PD when RB is 100 kohm? Problem 4: Design a circuit that meets these specifications: VCC = 20 V, VBE = 0.7 V, VC = 10 V, and IC = 5 mA. What are the values of RB and RC.

Electronic Principles > Lab Assignments > Assignments 17-21

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