Integrator Amplifier

Amplifiers

Integrator

Graph of a typical Integrator Amp circuit (drawing redrawn by Ben Henry)

The circuit at right integrates the input voltage $V_{in}$ by using an amplifier.

$V_{out}={\frac {-1}{R_{1}*C}}\int V_{in}dt$

"$R_{2}$ ; Provides negative feedback for low output impedance needs. But it also distorts the output."¹

The use of an integrator circuit is the opposite of a differentiator circuit. In other words, If you have a triangle wave input and you differentiate it you will get a square wave output. If you run the square wave as the input to an integrator circuit you will end up with the triangle wave for the output². The resistor ($R_{2}$) is used to provide feedback³ of the output DC voltage. Without this, circuit wouldn't perform as calculated because of the un-ideal conditions of real life.

Contributers

--Benjamin.henry 23:15, 10 January 2010 (UTC)

Reviewers

Greg Fong

• http://en.wikipedia.org/wiki/This_article_does_not_cite_any_references_or_sources.#Footnote_system
• I don't think I would capitalize amplifier, differentiator , differentiate, integrator or resistor.
• I believe you mean triangle wave and square wave, in place of ^^^ and square sine wave.
• After you take these comments into consideration, email me again and I'll take a look at it once more.

Victor Shepherd

• I agree with Greg just like you did with square sine wave do the same with triangle wave instead of ^^^, makes it confusing and I don't believe that's a standard way of representing it.
• I will add one more thing. You don't need to have the types of waves within "".

Sources

¹ Quick Study "Electronics 1, Part 2"

² Practical Electronics for Inventors (p545, 2nd edition)

³ Feedback_in_Amplifiers