Hello ,
Could someone help me out plotting a Bode and nyquist diagram in matlab
of a simple R/c low pass filter?
I'm making a presentation of my semestral work in a few weeks of a very basic oscilloscope that I made in java and a small part of the presentation is the input analog ciruitry.
So first I have to find the transfer function. I've looked on this page and it says that the transfer function will be
1/(jwRC + 1)
I understand how they derived that but I don't understand what the j and w will be. Do I consider w as 2pi/T - (2*pi*F) ? What about the j , and how would I plot this function in matlab?
Also , I have two r/c stages for a steeper low pass but If I remember from the signals course lecture I can just multiply the two transfer functions that are in the S domain to get the total transfer function.
(I know that two cascaded R/C stages aren't optimal and that I should put a buffer in between but for simplicity sake I just cascaded them without a buffer)
Thanks in advance
Could someone help me out plotting a Bode and nyquist diagram in matlab
of a simple R/c low pass filter?
I'm making a presentation of my semestral work in a few weeks of a very basic oscilloscope that I made in java and a small part of the presentation is the input analog ciruitry.
So first I have to find the transfer function. I've looked on this page and it says that the transfer function will be
1/(jwRC + 1)
I understand how they derived that but I don't understand what the j and w will be. Do I consider w as 2pi/T - (2*pi*F) ? What about the j , and how would I plot this function in matlab?
Also , I have two r/c stages for a steeper low pass but If I remember from the signals course lecture I can just multiply the two transfer functions that are in the S domain to get the total transfer function.
(I know that two cascaded R/C stages aren't optimal and that I should put a buffer in between but for simplicity sake I just cascaded them without a buffer)
Thanks in advance