Talk:Circuit Idea/Reinventing the Non-inverting Amplifier

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Here is a possible building "scenario" that my students and I were using during laboratory excercises to consider the op-amp non-inverting amplifier. Circuit-fantasist (talk) 06:13, 17 April 2008 (UTC)


Contents

[edit] "Inventing" the negative feedback follower

[edit] A passive voltage follower: Imperfections

Fig. 1. A humble wire is the simplest but imperfect voltage "follower".


[edit] Building a general negative feedback follower

[edit] Deriving the negative feedback idea

[edit] Generalizing the examples into a block diagram

Fig. 2. A negative feedback follower consists of only three components.


[edit] Building a negative feedback voltage follower

[edit] What is op-amp?

Fig. 3. How to drive and supply the op-amp.
Fig. 4. A transfer characteristic of the op-amp.


[edit] Building an op-amp follower

Fig. 5. An op-amp follower investigated by Microlab (waveforms).
Fig. 6. An op-amp follower.


[edit] Disturbing the negative feedback follower

Fig. 7. A disturbed op-amp follower investigated by Microlab (waveforms).
Fig. 8. An op-amp follower disturbed.


[edit] Converting the NFB follower into an amplifier

Fig. 9. A non-inverting amplifier investigated by Microlab (waveforms).
Fig. 10. A non-inverting amplifier is a disturbed follower.



[edit] Resources

Labs: group 65a, group 66a and group 67a.
Op-amp amplifiers with negative feedback]

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