McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved. 7-1 Chapter Seven Frequency Response
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McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
7-1Chapter Seven
Frequency Response
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
7-2Figure 7.1
Amplifier gain versus frequency
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
7-3Figure 7.16(a) Common-emitter circuit with coupling capacitor and (b) small-signal equivalent circuit
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
7-4Figure 7.17(a) Common-source circuit with output coupling and (b) small-signal equivalent circuit
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
7-5Figure 7.18(a) Emitter-follower circuit with output coupling capacitor and (b) small-signal equivalent circuit
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
7-6
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
7-7Figure 7.20(a) MOSFET common-source circuit with a load capacitor and
(b) small-signal equivalent circuit
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
7-8Figure 7.21PSpice analysis results for the circuit in Figure 7.20(a): (a) voltagegain magnitude response, and (b) phase response
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
7-9Figure 7.22(a) Circuit with both a coupling and a load capacitor and (b) small-signal equivalent circuit
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
7-10Figure 7.23(a) Circuit with emitter bypass capacitor and (b) small-signal equivalent circuit
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
7-11Figure 7.24Bode plot of the voltage gain magnitude for the circuit with an emitter bypass capacitor
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
7-12Figure 7.33Hybrid- equivalent circuit
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
7-13Figure 7.35Bode plots for the short-circuit current gain: (a) magnitude and (b) phase
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
7-14Figure 7.37a(a) Common-emitter circuit with current source input
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
7-15Figure 7.37b(b) small signal equivalent circuit with simplified hybrid- model
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
7-16Figure 7.39
Small-signal equivalent circuit, including the equivalent Miller capacitance
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