Slide 1 - Salisbury University

Download Report

Transcript Slide 1 - Salisbury University

CHAPTER 4
Diodes
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure 4.2 The two modes of operation of ideal diodes and the use of an external circuit to limit (a) the forward current and
(b) the reverse voltage.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure 4.5 Diode logic gates: (a) OR gate; (b) AND gate (in a positive-logic system).
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure 4.13 Development of the diode small-signal model.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure 4.14 (a) Circuit for Example 4.5. (b) Circuit for calculating the dc operating point. (c) Small-signal equivalent circuit.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure 4.16 Circuit symbol for a zener diode.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure 4.17 The diode i–v characteristic with the breakdown region shown in some detail.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure 4.18 Model for the zener diode.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure 4.19 (a) Circuit for Example 4.7. (b) The circuit with the zener diode replaced with its equivalent circuit model.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure 4.20 Block diagram of a dc power supply.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure 4.21 (a) Half-wave rectifier. (b) Transfer characteristic of the rectifier circuit. (c) Input and output waveforms.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure 4.22 Full-wave rectifier utilizing a transformer with a center-tapped secondary winding: (a) circuit; (b) transfer characteristic
assuming a constant-voltage-drop model for the diodes; (c) input and output waveforms.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure 4.23 The bridge rectifier: (a) circuit; (b) input and output waveforms.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure 4.24 (a) A simple circuit used to illustrate the effect of a filter capacitor. (b) Input and output waveforms assuming an ideal diode. Note that the
circuit provides a dc voltage equal to the peak of the input sine wave. The circuit is therefore known as a peak rectifier or a peak detector.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure 4.26 Waveforms in the full-wave peak rectifier.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure 4.29 Applying a sine wave to a limiter can result in clipping off its two peaks.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure E4.26
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure 4.32 The clamped capacitor or dc restorer with a square-wave input and no load.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure 4.34 Voltage doubler: (a) circuit; (b) waveform of the voltage across D1.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure P4.2 (c)
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure P4.4 (g)
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure P4.23
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure P4.74
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure P4.95
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.