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# CHAPTER 10

IN THIS CHAPTER

10.1 Introduction

10.2 Sinusoidal Sources

10.3 Phasors and Sinusoids

10.4 Impedances

10.5 Series and Parallel Impedances

10.6 Mesh and Node Equations

10.7 Thévenin and Norton Equivalent Circuits

10.8 Superposition

10.9 Phasor Diagrams

10.10 Op Amps in AC Circuits

10.11 The Complete Response

10.12 Using MATLAB to Analyze AC Circuits

10.13 Using PSpice to Analyze AC Circuits

10.14 How Can We Check … ?

10.15 DESIGN EXAMPLE—An Op Amp Circuit

10.16 Summary

Problems

PSpice Problems

Design Problems

## 10.1 Introduction

Consider the experiment illustrated in Figure 10.1-1. Here, a function generator provides the input to a linear circuit and the oscilloscope displays the output, or response, of the linear circuit. The linear circuit itself consists of resistors, capacitors, inductors, and perhaps dependent sources and/or op amps. The function generator allows us to choose from several types of input function. These input functions are called waveforms or waves. A typical function generator will provide square waves, pulse waves, triangular waves, and sinusoidal waves.

The output of the circuit will consist of two parts: a transient part that dies out as time increases and a steady-state part that persists. Typically, the transient part dies out quickly, perhaps in a couple of milliseconds. We expect that the oscilloscope in Figure ...

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