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R1 Up Rin Cu: C, gmbe Uhe Rg RL. (c) Because of the low impedance at the output, the input and output time constants are relatively well decoupled, resulting in two poles for the common-collector amplifier. 1 (17.138) WPi = ([Rn +rx]|[rz + (Bo + 1)R1]) ( Cµ + C- 1+ gmR1.

R1 Up Rin Cu: C, gmbe Uhe Rg RL. (c) Because of the low impedance at the output, the input and output time constants are relatively well decoupled, resulting in two poles for the common-collector amplifier. 1 (17.138) WPi = ([Rn +rx]|[rz + (Bo + 1)R1]) ( Cµ + C- 1+ gmR1.

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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fT = 500 MHz, rx = 300 Ω, Cμ = 0.60 pF for the BJT, and CGS = 3 pF and CGD = 0.60 pF for the FET.

Derive an expression for the total input capacitance of the BJT as shown looking into node υb. Assume CL = 0. Use it to interpret Eq. (17.138).

R1 Up Rin Cu: C, gmbe Uhe Rg RL. (c)
Transcribed Image Text:R1 Up Rin Cu: C, gmbe Uhe Rg RL. (c)
Because of the low impedance at the output, the input and output time constants are relatively well decoupled, resulting in two poles for the common-collector amplifier. 1 (17.138) WPi = ([Rn +rx]|[rz + (Bo + 1)R1]) ( Cµ + C- 1+ gmR1.
Transcribed Image Text:Because of the low impedance at the output, the input and output time constants are relatively well decoupled, resulting in two poles for the common-collector amplifier. 1 (17.138) WPi = ([Rn +rx]|[rz + (Bo + 1)R1]) ( Cµ + C- 1+ gmR1.
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