(a) When the switch is closed, the transistor must be driven into saturation, thus applying nearly Vcc across the lamp. Choose R₁ so that for min the transistor is exactly at the boundary of the active (constant-current) and saturation regions. Use a non-standard resistance value if necessary, and express it to 4 significant figures. (b) For your choice of R₁, what is iß, ic, VLAMP, and vCE? (Hint: Use KVL to find VLAMP) What power will be dissipated by the transistor in your design? (c) If R₁ happened to increase by 8%, what would be the new values of iß, ic, ULAMP, UCE, and PD? (You can use either the vi plot or the formula, just state which.) (d) Can you think of any modifications to the circuit that would improve the performance of the system? Describe the modifications and improvement.

(a) When the switch is closed, the transistor must be driven into saturation, thus applying nearly Vcc across the lamp. Choose R₁ so that for min the transistor is exactly at the boundary of the active (constant-current) and saturation regions. Use a non-standard resistance value if necessary, and express it to 4 significant figures. (b) For your choice of R₁, what is iß, ic, VLAMP, and vCE? (Hint: Use KVL to find VLAMP) What power will be dissipated by the transistor in your design? (c) If R₁ happened to increase by 8%, what would be the new values of iß, ic, ULAMP, UCE, and PD? (You can use either the vi plot or the formula, just state which.) (d) Can you think of any modifications to the circuit that would improve the performance of the system? Describe the modifications and improvement.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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