Is that much difficult to design a RLC filter with my specifications?.i asked specific questions.
Provide me other type of filter (not RC filter) to design a RLC filter to reduce the inductance value, from the copy of Zverev.
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Is that much difficult to design a RLC filter with my specifications?.i asked specific questions.
Hi Ian,Use
Use the RCRC filter. It performs better than the RLC filter and takes up much less space.
In my experience, when given a low-pass filter attenuation slope of N dB/octave, it refers to the straight-line slope of the attenuation curve that is well past the cutoff frequency.the results are fc=31 kHz@-3dB and only 3.7dB/Octave
12dB/octave is the asymptote.Not clearly understand,
Please could you explain more, like by drawing on simulation how to measure and from where to where will be measured to find out 'db vs octave'?.
Do you need an RLC circuit or can you use an op amp circuit with just R's and C's ?Is that much difficult to design a RLC filter with my specifications?.
Provide me other type of filter (not RC filter) to design a RLC filter to reduce the inductance value, from the copy of Zverev.
I don't know how to write the transfer function of the circuit. Please could you help me with that?.Do you need an RLC circuit or can you use an op amp circuit with just R's and C's ?
To design an RLC filter usually you figure out what kind of response you want then go from there.
Besides being a good idea to begin with, your choice of R, L, and C can shape the response based on more than just the cutoff frequency. The cutoff frequency is just one aspect of a filter like this. Since you already decided on the topology you can go forward with an analysis from there. You start with the transfer function.
So with that in mind, you can write your transfer function and then solve for L, C, and R in terms of the other two. You can then choose one or two values and then solve for the others. Do you know how to write the transfer function for this circuit in the frequency domain (only AC circuit analysis is required) ?
I understand the derivation. But, not understanding how they start with the differential equation. Left side contains 4 terms and Right side contains 3 terms as I shown below. If it is second order filter, then, do I need to chose 3 terms on the right side and 2 terms on the left side. Am I correct?.hi pp,
Read this linked Article.
E
https://lpsa.swarthmore.edu/Representations/SysRepTransformations/TF2SDE.html
Why - for heaven's sake - do you want to set up the differential equation in the time domain?I understand the derivation. But, not understanding how they start with the differential equation.
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Please could you explain to me how to write differential equation for the below circuit. After that I will start to derive the transfer function.
I don't have an idea either do I need to setup differential equation or idea equation. I have just followed the post #167. Then, I got the question and posted at #168.Why - for heaven's sake - do you want to set up the differential equation?
The transfer function is quite simple to find with the calculation in the frequency domain.
OK - let me say the following:I don't have an idea either do I need to setup differential equation or idea equation. I have just followed the post #167. Then, I got the question and posted at #168.
Ofcourse, It's very simple for you. But, It's difficult for the beginners like me.
Do you understand how to use complex algebra? That's just the idea of using complex numbers to calculate things with rather than just regular numbers.I don't know how to write the transfer function of the circuit. Please could you help me with that?.
Hi Eric,hi PP,
Who wrote that PDF document.?
E
I did it myself. whats wrong with that?.hi PP,
Who wrote that PDF document.?
E
No - I think, it is correct. However, a very lengthy calculation. I have tried to show a shorter way (my post'177),I did it myself. whats wrong with that?.
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