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close this bookAmplifier Teaching Aid (GTZ, DED; 86 pages)
View the documentPreface
View the documentIntroduction
Open this folder and view contentsLesson 1 - Semiconductor Review
Open this folder and view contentsLesson 2 - Bipolar Transistor
Open this folder and view contentsBipolar Transistor II
View the documentFirst Evaluation
Open this folder and view contentsLesson 4 - Transistor Fundamentals
Open this folder and view contentsLesson 5 - Transistor Biasing
Open this folder and view contentsLesson 6 - Transistor Biasing II
View the documentSecond Evaluation
Open this folder and view contentsLesson 7 - Small Signal Amplifier
close this folderLesson 8 - Small Signal Amplifier II
close this folderLesson Plan
View the documentSignals in a CE amplifier
View the documentInput impedance
View the documentImpedance matching
View the documentHandout No. 1
View the documentWorksheet No. 8
Open this folder and view contentsLesson 9 - Small Signal Amplifier III
Open this folder and view contentsLesson 10 - Large Signal Amplifier
View the documentThird Evaluation
 

Signals in a CE amplifier

One characteristic of the CE amplifier is the phase inversion.

See Handout No. 1 (let the students complete)

For a better understanding the different voltage signals are plotted in four graphs:

Graph 1: A small ac signal is applied at the amplifier input.
Graph 2: The small ac signal is topping the biasing dc.
Graph 3: The amplified and inverted ac signal is topping the biasing dc.
Graph 4: The output capacitor C2 is blocking the dc, the amplified inverted ac signal is applied at the load.
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