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Lecture 9March 23, 2015
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EEE 312
Electronic Circuits
9.1 Introduction
9.2 Logarithms
9.3 Decibels
9.4 General Frequency Considerations
9.5 Normalization Process
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BJT - Frequency Response
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Decibels
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Decibels
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Decibels
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Decibels
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Low Frequency Range
High Frequency Range
Mid Frequency Range
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General Frequency considerations
Low Frequency Range
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General Frequency considerations
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Low Frequency Range
The larger capacitors of a system will have an important impact on the
response of a system in the low-frequency range and can be ignored for
the high-frequency region.
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General Frequency considerations
High Frequency Range
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General Frequency considerations
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High Frequency Range
The smaller capacitors of a system will have an important impact on the
response of a system in the high-frequency range and can be ignored for the
low-frequency region.
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General Frequency considerations
Mid Frequency Range
In the mid-frequency range the effect of the capacitive elements is largely
ignored and the amplifier considered ideal and composed simply of resistive
elements and controlled sources.
The effect of the capacitive elements in an amplifier are ignored for the
mid-frequency range when important quantities such as the gain and
impedance levels are determined.
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General Frequency considerations
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LOW-FREQUENCY ANALYSISBODE PLOT
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LOW-FREQUENCY ANALYSISBODE PLOT
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LOW-FREQUENCY ANALYSISBODE PLOT
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LOW-FREQUENCY ANALYSISBODE PLOT
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The piecewise linear plot of the asymptotes and associated
breakpoints is called aBode plotof the magnitude versus frequency.
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LOW-FREQUENCY ANALYSISBODE PLOT
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LOW-FREQUENCY ANALYSISBODE PLOT
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LOW-FREQUENCY ANALYSISBODE PLOT
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LOW-FREQUENCY ANALYSISBODE PLOT
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LOW-FREQUENCY ANALYSISBODE PLOT
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LOW-FREQUENCY ANALYSISBODE PLOT
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LOW-FREQUENCY ANALYSISBODE PLOT
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LOW-FREQUENCY ANALYSISBODE PLOT
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LOW-FREQUENCY RESPONSEBJT AMPLIFIERWITH RL
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LOW-FREQUENCY RESPONSEBJT AMPLIFIER
WITH RL
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LOW-FREQUENCY RESPONSEBJT AMPLIFIERWITH RL
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LOW-FREQUENCY RESPONSEBJT AMPLIFIER
WITH RL
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LOW-FREQUENCY RESPONSEBJT AMPLIFIERWITH RL
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LOW-FREQUENCY RESPONSEBJT AMPLIFIER
WITH RL
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LOW-FREQUENCY RESPONSEBJT AMPLIFIERWITH RL
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IMPACT OF RS ON THE BJT LOW-FREQUENCY
RESPONSE
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IMPACT OF RS ON THE BJT LOW-FREQUENCYRESPONSE
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IMPACT OF RS ON THE BJT LOW-FREQUENCY
RESPONSE
