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UB Vcc Rc RE www. R Figure 1: Circuit for Questions 1 - 3. Question 3 In addition to the assumptions outlined above, assume that VÂ is known. 1. Find the minimum value of Vcc required to ensure that the transistor remains in the active region at all times.

UB Vcc Rc RE www. R Figure 1: Circuit for Questions 1 - 3. Question 3 In addition to the assumptions outlined above, assume that VÂ is known. 1. Find the minimum value of Vcc required to ensure that the transistor remains in the active region at all times.

Introductory Circuit Analysis (13th Edition)
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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Find the answer (in Volts) to Question 3 in the attached image where:

RC = 5.8 kOhms, RE = 2.0 kOhms,

VBE(sat) = 0.7 Volts, VCE(sat) = 0.2 Volts,

VB = 1.6 Volts and A = 0.29 Volts.

Questions 1 - 3 Consider the circuit shown in Figure 1 where Vcc is a fixed voltage. The voltage at the base of the transistor, v (t), is a time varying waveform described by (1). v (t) = Vß + v₂ (t) Where VB is a DC offset and v (t) is a time varying, purely AC signal. Suppose the amplitude of v, (t) is A and we make the following assumptions: • The capacitor C is sufficiently large so that it can be considered to be a short circuit at the signal frequencies • Rc and RE are known • R» Rc • UBE=UBE (sat) • ß» 1 in the active region • VBE(sat) and VCE(sat) are known UB Vcc ww Rc C RE علیه R (1) Figure 1: Circuit for Questions 1 3. - Question 3 In addition to the assumptions outlined above, assume that VB is known. 1. Find the minimum value of Vcc required to ensure that the transistor remains in the active region at all times.
Transcribed Image Text:Questions 1 - 3 Consider the circuit shown in Figure 1 where Vcc is a fixed voltage. The voltage at the base of the transistor, v (t), is a time varying waveform described by (1). v (t) = Vß + v₂ (t) Where VB is a DC offset and v (t) is a time varying, purely AC signal. Suppose the amplitude of v, (t) is A and we make the following assumptions: • The capacitor C is sufficiently large so that it can be considered to be a short circuit at the signal frequencies • Rc and RE are known • R» Rc • UBE=UBE (sat) • ß» 1 in the active region • VBE(sat) and VCE(sat) are known UB Vcc ww Rc C RE علیه R (1) Figure 1: Circuit for Questions 1 3. - Question 3 In addition to the assumptions outlined above, assume that VB is known. 1. Find the minimum value of Vcc required to ensure that the transistor remains in the active region at all times.
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