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2.7 Figure P2.7 shows how a pnp BJT can boost the output current capability of an op amp when it comes to sinking current from the load (as op- posed to sourcing current to the load, as discussed in the text). Assuming the BJT has B, = 80 and an E-B junction voltage drop of 0.8 V, find the current and voltage at each of the BJT terminals if I, = 500 mA. What is the voltage and current required of the op amp's output? %3D %3D

2.7 Figure P2.7 shows how a pnp BJT can boost the output current capability of an op amp when it comes to sinking current from the load (as op- posed to sourcing current to the load, as discussed in the text). Assuming the BJT has B, = 80 and an E-B junction voltage drop of 0.8 V, find the current and voltage at each of the BJT terminals if I, = 500 mA. What is the voltage and current required of the op amp's output? %3D %3D

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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2.7
2.7 Figure P2.7 shows how a pnp BJT can boost the output current capability of an op amp when it comes to sinking current from the load (as op- posed to sourcing current to the load, as discussed in the text). Assuming the BJT has B, = 80 and an E-B junction voltage drop of 0.8 V, find the current and voltage at each of the BJT terminals if 1, = 500 mA. What is the voltage and current required of the op amp's output? LD,L LM336-5.0 A oVo(-5 V) IB -Vz(-5 V) 741 +. 3.0 kN -12 V FIGURE P2.7
Transcribed Image Text:2.7 Figure P2.7 shows how a pnp BJT can boost the output current capability of an op amp when it comes to sinking current from the load (as op- posed to sourcing current to the load, as discussed in the text). Assuming the BJT has B, = 80 and an E-B junction voltage drop of 0.8 V, find the current and voltage at each of the BJT terminals if 1, = 500 mA. What is the voltage and current required of the op amp's output? LD,L LM336-5.0 A oVo(-5 V) IB -Vz(-5 V) 741 +. 3.0 kN -12 V FIGURE P2.7
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