EXAMPLE 4.26 Determine the de levels for the currents and voltages of the direct-coupled amplifier of Fig. 4.72. Note that it is a voltage-divider bias configuration followed by a common-collector configuration; one that is excellent in cases wherein the input imped- ance of the next stage is quite low. The common-collector amplifier is acting like a buffer between stages. DC BIASING-BJTS Vcc 14 V Rc. 6.8 k. R, 33 kN Q2 B2= 50 Cc R, O v, P= 100 200 N 1 µF RE1.2 kn R 1 kN + R2 210 kN CE RE, 22.2 kN Vs |20 μF FIG. 4.72 Direct-coupled amplifier.

EXAMPLE 4.26 Determine the de levels for the currents and voltages of the direct-coupled amplifier of Fig. 4.72. Note that it is a voltage-divider bias configuration followed by a common-collector configuration; one that is excellent in cases wherein the input imped- ance of the next stage is quite low. The common-collector amplifier is acting like a buffer between stages. DC BIASING-BJTS Vcc 14 V Rc. 6.8 k. R, 33 kN Q2 B2= 50 Cc R, O v, P= 100 200 N 1 µF RE1.2 kn R 1 kN + R2 210 kN CE RE, 22.2 kN Vs |20 μF FIG. 4.72 Direct-coupled amplifier.

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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