Question:
is RC integrator can filter high frequency or just convert the signal shape only with no filtering?
2012-01-11 01:57:59 UTC
i want to know whether RC integrator just change the shape of the input signal without filtering the high frequency or it do both( change the shape & filter the high frequency)....
Three answers:
billrussell42
2012-01-11 04:22:45 UTC
No, it's not possible to change the shape without changing the frequency components. In this case, the integrator is also a low pass filter.
Nicholas
2012-01-11 10:10:17 UTC
In a analog circuit where op amps are used to create an integrator, for the solution of differential equations as far as other applications. The capacitors in the circuit are used as high frequency filters.
veeyesvee
2012-01-11 12:32:50 UTC
The square wave has harmonic components such as x,x/3, x/5, x/7 etc if x is fundamental amplitude. The even harmonics are absent.

the triangular wave has k, k/9, k/25, ... k/n^2 as harmonic components even harmonics are absent.

the integrator has a 1/f type relationship. So harmonics are further reduced by f, and thus an integrator changes a square wave to triangular!!


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