Recent content by ace130

Hello, I am given an exercise in which I need to answer some questions, for this given system : y(n)=1/3[x(n)+x(n-1)] 1/ find the impulse response h(n), then H(n) 2/ calculate the magnitude ||H(n)|| and tell the nature of the filter 3/ calculate Fc which is cutoff frequency when Fe=8Khz , and...

this is the KCL and loops and this is the final result: Edit : the final line it should be Zc not 1/Zc .

Yes i know the KCL , also this should be solved in complex . I don't know if I should sum up those Rs and Cs or just write KCL that will take more time

Hello, so this the circuit of an IdeaI OPAMP. The Question is to find the function Vs/Ve . I tried to make some sum ups to simplify it but I still unable to find a solution, so I tried to NOT sum up any component and found this: E-S=iZ+i2(Z+R) E=iZ+i3R S=i2R so the idea is to find E=f(i2) ...

It is ! it's simple math ? I just inverse it , because I'm using a Right-to-left Keyboard... my bad

well, I knew that Vs would cause problems when adding R2 and Z2 , so I tried to find E/S without sum up any component , instead I wrote E/S= (V1/S)*(E/V1) and calculate each expression , it takes more time but the result seems to be more convenient , the problem is I can't find a "stable"...

I'm a little confused, here is my friend attempt (E=Ve, S=Vs , Z'=Zeq1) , considering that his part 2 is correct , so the voltage at Z1(Zc1) is V1 , but the voltage at Z' is obviously V1-S

So this is the circuit of a filtre and it's complex schema : The question was find the fonction S/E .In order to find S/E , I had to sum up impedances in serie or parallel, for example R2 and Z2 have the same current so we put R2+Z2=Z', but can I sum Z1+Z' ? since they have different current...