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Circuit Idea/Op-amp Inverting RC Integrator

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<<< contents - passive version - page stage 25% developed >>>


How to Transform the Passive RC Integrator into an Active One
(Reinventing the Op-amp Inverting RC Integrator)


Circuit idea: The op-amp compensates the voltage drop across the capacitor adding as much voltage to the input voltage source as it loses across the capacitor.


Fig. 1. How do we transform the imperfect passive current-to-voltage converter into a perfect op-amp one?

Contents

[edit] Speculation: The active version is just an improved passive one

Active RC integrator = passive RC integrator + op-amp + great idea ?

[edit] Problem: The capacitor affects the current

[edit] Basic non-electrical idea: Removing a disturbance by an "antidisturbance"

[edit] Basic electrical idea: Removing voltage by an "antivoltage"

[edit] Building the electric circuit

Active RC integrator = passive RC integrator + "helping" voltage source

[edit] Exploring the electric circuit

[edit] Op-amp inverting RC integrator

[edit] Building the electronic circuit

Op-amp RC integrator = passive RC integrator + "helping" op-amp

[edit] Exploring the electronic circuit

[edit] Positive input voltage

[edit] Negative input voltage

[edit] Applications of the op-amp RC integrator

Op-amp RC integrator = op-amp V-to-I converter + I-to-V C integrator

[edit] Comparison with other techniques

Deboo integrator.

[edit] References

[edit] Related Wikimedia resources

[edit] Wikibooks

[edit] Wikipedia

[edit] Further reading

<<< contents - passive version - page stage 25% developed >>>
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