# Integrator - -Square Wave to Triangle Wave and Triangle Wave to Sine Wave

1. ## Integrator - -Square Wave to Triangle Wave and Triangle Wave to Sine Wave

Hi..

How can the integrator convert the square wave to triangle wave? or triangle wave to sine wave? Can you give a complete explanation? Thanks..:)

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2. ## Re: Integrator - -Square Wave to Triangle Wave and Triangle Wave to Sine Wave

The waveform isn't a real sine, it's comprised of parabolic arcs. You can refer to the mathematical definition of integral to see why.

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3. ## Re: Integrator - -Square Wave to Triangle Wave and Triangle Wave to Sine Wave

Hi,

I mean, can you explain the operation of the integrator. From the input to the output in a square input, triangle input and the "parabolic arc" input.. Thanks.. :)

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4. ## Re: Integrator - -Square Wave to Triangle Wave and Triangle Wave to Sine Wave

Originally Posted by chingzky
Hi,

I mean, can you explain the operation of the integrator. From the input to the output in a square input, triangle input and the "parabolic arc" input.. Thanks.. :)
Please remember the voltage-current relationship of a capacitor in the time domain (it`s an integrating operation).

5. ## Re: Integrator - -Square Wave to Triangle Wave and Triangle Wave to Sine Wave

Dear Friends
Hi
I agree with FvM. but you can give your imagine sine wave to the filter and then take a real wave form(sine wave).
And about miller integrator with capacitor: Vo = 1/RC *integral of vi dt. if the capacitor be in the constant current source
, It's action can being as an integrator . if you want more , i can describe it with it's equations.
Regards
Goldsmith

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