Recent content by gl0ck

Thank you both for the answers. donpacino, I looked at the link it helped find the transfer function in my case. What I found more helpful actually was the comment below. I also found the book Modern Control Systems quite helpful understanding some basics.

Hello, I got the following diagram, shown below, and I have to derive its transfer function. I think I have a general misunderstanding about the transfer functions. What I think it is, is: output/input basically. As input is the whole block of things that affect the output. This is the system...

LvW, thanks for the reply, but it seems still unclear. As I am unsure of if the two terms (output resistance and output impedance) could be found by the same way? Also how would you know the A of the op amp in order to find the LG? Also are you saying that R2 =Rout/(1-LG), which is -R1/Rin ? and...

Homework Statement Hello, I just came across a design problem based on an inverting op amp. The requirement output values are -25G and not greater than 1kOhm output impedance. With inputs 1V p-t-p and 75Ohms input impedance Choosing values for the gain seem fairly easy, but how these values...

What I got found is for the first plot shows, phosphorus concentration, and the donor boron concentration as a function of depth in an N-type wafer, subject to a p-type diffusion, and for the second one, the net dopant concentration |Na - Nd| as a function of depth for the n-type wafer that has...

No actually, I would guess Abrupt pn junction or what happens when a N-type semiconductor is in contact with a P-type semiconductor?

Homework Statement Hello, I have to estimate the junction depth and layer thickness from the graph I am given. I know that when Phosphorus and boron are crossing, at this point is the Junction depth. What about the oxide layer grown, how would you estimate its thickness? For the second graph...

Hello, I've solved some questions for my exam tomorrow. Since I do not have any answers to the questions, could you please confirm if it is correct? I have questions on the last problem. Also I will post more questions, just I am working on them now. Question 1: a) 6 Pole ->3 pairs...

Yeah, I got the same, I just played it smart, but I think your solution is correct. I substituted r = x + y in the integral ## 1 - x^2 - y^2## with ## 1 - ( x^2 + y^2)## to get ## 1 - r^2## and also for x and y since r = 1 I think I saw somewhere to replace ##rcos( \theta ) ## with ## 1cos(...

Hello, I've got exam on the same things, so please give some feedback on my workings This surface is the graph of the function f(x,y) = 1-x^2-y^2 \mbox{ for } x^2+y^2 <= 1, so use the graph parametrization X(x,y) = (y,x, 1 - x^2 - y^2). We shall use the following (very important!) general...

This number is given in the answers as "when w = 6000rad/sec , 20log10(Vout/Vin) = 26dB" I think this is just an approximation. Because when I draw the bode plot and draw line upwards from 6k until I meet the magnitude line, you don't really know the value, I think they just kinda guessed it to...

Not sure what you mean, but I find it easy to have the equations in the form Vout/Vin = the transfer functions.. As the thread become discussing question a), is it correct what I've written or it is wrong? Because the thing I can't get is part b) and I would appreciate some suggestions on b)...

oh I see its just a typo.. it should be 1/(1+jw10-2) same for 1/(1+jw2x10-4)

for a) the term in the 1st brackets is the constant term, the second bracets is the inverted low pass followed with 2 low pass functions. I just put all the constants in the 1st brackets. Bandpass is made of low pass and high pass filters combined together. I just thought it will look like it...

a) ( 105 x 5 x 10-2 x 2 x 10-4 ) x (1+jw0.2)x (1/jw10-2)x(1/jw2x10-4) I think when w = 0 the gain is 0, when w>0 it should be a bandpass kind a bode plot ( from what I can see from the transfer functions) . I think from 5rad/sec the gain should go up since it is inverted low pass transfer...