PowerPoint of Figures and Tables

Principles and Applications ofElectrical Engineering

Fifth Edition

Chapter 9 Semiconductors and Diodes

Figure 9.5

9-1

A pn junctionFigure 9.5

Figure 9.6

9-2

Drift and diffusion currents in a pn junctionFigure 9.6

Figure 9.7

9-3

Forward- and reverse-biased pn junctionsFigure 9.7

Figure 9.8, 9.9

9-4

Semiconductor diode i-v characteristicFigure 9.8

Figure 9.9Semiconductor diode circuit symbol

Figure 9.10

9-5

The i-v characteristic of the semiconductor diodeFigure 9.10

Figure 9.11

9-6

Large-signal on/off diode modelFigure 9.11

Figure 9.12, 9.13, 9.14

9-7

Circuit containing ideal diode

Figure 9.12

Circuit of Figure 9.12, assuming that the ideal diode conducts

Figure 9.13

Circuit of Figure 9.12, assuming that the ideal diode does not conduct

Figure 9.14

Please see page 497 for Focus on Methodology

09_15.jpg

09_16.jpg

09_17.jpg

Figure 9.20, 9.21

9-9

Figure 9.20 Ideal diode rectifier input and output voltagesFigure 9.21

Please see page 500 for First Paragraph

Offset Diode Model

sin

(1) Please see the eq. (9.13)~ (9.15) at pages 504-505

(2) Please see page 505 for Focus on Methodology

Figure 9.34

9-10

Superposition of load line and diode i-v curveFigure 9.34

Figure 9.35, 9.37

9-11

Piecewise linear diode modelFigure 9.35

Figure 9.37

Figure 9.39

9-12

Full-wave rectifierFigure 9.39

Please see “Electronic Devices and Circuits”, 4th ed. T. Bogart,p. 66-67 (1997)

Figure 9.45

9-14

DC power supplyFigure 9.45

Figure 9.49

9-15

(a) A Zener diode voltage regulator; (b) simplified circuit for Zener regulatorFigure 9.49

Figure 9.54, 9.55

9-16 Two-sided diode clipper

Figure 9.54

Circuit model for the diode clipperFigure 9.55

Figure 9.56, 9.57

9-17

Equivalent circuit for the one-sided limiter (diode on)Figure 9.56

Equivalent circuit for the one-sided limiter (diode off)

Figure 9.57

Figure 9.58, 9.60

9-18

Two-sided (ideal diode) clipper input and output voltagesFigure 9.58

Voltages for the diode clipper (piecewise linear diode model)

Figure 9.60

Figure 9.70

9-19

Photodiode i-v curvesFigure 9.70