5. What influence does negative feedback have on the input resistance? 6. What influence does negative current feedback have on the output resistance? 7. What influence does negative voltage feedback have on the output resistance? 8. Fig. (3) represent amplifier with current feedback. Explain? 9. Fig (4) represent amplifier with voltage feedback. Explain? 101 Ra 330 (1 V₂

5. What influence does negative feedback have on the input resistance? 6. What influence does negative current feedback have on the output resistance? 7. What influence does negative voltage feedback have on the output resistance? 8. Fig. (3) represent amplifier with current feedback. Explain? 9. Fig (4) represent amplifier with voltage feedback. Explain? 101 Ra 330 (1 V₂

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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What are the voltage gain, input resistance, andoutput resistance of the amplifier as shownif R1 = 12 k and R2 = 120 k ? (b) Repeat forR1 = 160 k and R2 = 330 k ? (c) Repeat forR1 = 4.3 k and R2 = 270 k ?
2) The circuit shown below uses a diode in the feedback path of the op amp. For each question, use only the ideal switch model to analyze the circuit's behavior (i.e. ignore the diode's 0.7V forward drop). Assume that R = 1k2, and the op amp is ideal. D VOUT VIN a) Suppose vIN=2V. What direction is the current i passing through R? Is the dio ON or OFF? Wha VOUT b) Suppose VIN = -2V. What direction is the current i passing through R? Is the diode ON or OFF? What is voUT? c) Explain why VOUT can never be less than 0V.
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