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Semiconductors and Diodes
AC Power
CHAPTER
9
Figure 9.1,2,3,4
Electrical Conduction in Semiconductor Devices
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
Figure 9.15, 9.16, 9.17
9-8
Figure 9.17
Figure 9.15 Figure 9.16
Figure 9.20, 9.21
9-9
Figure 9.20 Ideal diode rectifier input and output voltagesFigure 9.21
Figure,24,26
9.22
Offset Diode Model
Figure 9.34
9-10
Superposition of load line and diode i-v curve
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
Full-wave bridge rectifier
Figure 9.42
9-13
Operation of bridge rectifierFigure 9.42
Bridge rectifier with filter circuit
Figure 9.45
9-14
DC power supplyFigure 9.45
Complete model for Zener diode
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 clipperFigure 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
Two-sided (ideal diode) clipper input and output voltages
Figure 9.58
9-18
Voltages for the diode clipper (piecewise linear diode model)
Figure 9.60
Circuit model for the diode clipper (piecewise linear diode model)
Figure 9.59
The Diode Clamp
Figure 9.61, 9.62
Biased Diode Clamp
Diode Peak Detector
Figure 9.70
9-19
Photodiode i-v curvesFigure 9.70
Photodiodes
Photodiode circuit symbol Light-emitting diode circuit symbol
Light-emitting diode (LED)
Analysis of Light-Emitting Diode
Figure 9.74
Optocoupler or Optoisolator