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I took the circuit design classes, and then I also intensively studied the circuit design on my own, using the books, "Fundamentals of Microelectronics" and "design of analog CMOS integrated circuits" by Razavi.
Now, I would like to learn about circuits discussed in each chapter, by designing...
Thanks for your comment. Here is a simple question for the PN-junction diode. If free electrons move without the recombination with holes from the right end to the left end in the n-type, then dose current flow in the opposite direction of those electrons?
Thanks, let me ask one more question.
This link shows one page of the transistor circuit book, and this page explains the diffusion currents and the drift current when no external bias is applied to PN junction. Considering the equations (2.61) to (2.63) shown in the following link, there are...
I'm studing the PN junction process with the forward bias. The free electrons are recombined with empty holes, and they arrive at the positive polary of an external voltage source. In this process, the current flows in opposite direction with respect to the flow direction of the aforementioned...
I understand the MOS capacitor or the MOSCAP is used for some benefits, such as high capacitance density and more. Then, the capacitance of the MOSCAP changes with the gate voltage as explained in the C-V plot of the following link...
I understand this exercise is not good, but I need to understand the answer of this question. I think I made everyone misunderstood my question. Sorry about that. My question is NOT how to get i1.
My real question is how we can get 30V as an initial voltage of L1 at t=0, even though L1 becomes...
Oh, I see. So, each different topology (CE, CB, CC / CG, CS, CD) does NOT need to have ideal parameter values (e.g., high Rin and low Rout), and they are combined together to be an ideal amp or rather close to that. Thank you, KlausSt!
Thanks for your comments. I think your comment is the key point of my questions. May I ask one more question? Sorry for endless following questions..
Regarding your comments, a beginner like myself may have a stupid thinking: (beyond the circuits...) it is common sense that if there is an...
Thanks for the answers.
Actually, I had this question by taking an example from the following book written by Dr. Razavi.
https://www.amazon.com/Fundamentals-Microelectronics-Behzad-Razavi-2008-01-28/dp/B01FKSXI32
In p211, there is a simple example as follws:
----------------
A CE stage must...
Hi, let me try to ask a stupid question.
I'm a beginner for analog circuit design, and I'm reading a following book written by Prof. Sedra.
https://www.amazon.com/Microelectronic-Circuits-Electrical-Computer-Engineering/dp/0195323033
Ideal voltage amplifier model has an infinite value of input...
For my system, I need to derive a transfer function, and I'm stuck at the derivation process. Could you please help answer to my question?
Here is the system model I have, and a(t) can be different values depending on value of x(t) as below.
y(t) = (x(t)-a(t)) + (x(t)-a(t))^3 --- (eq.1)
where...
I'm looking for a tunable lowpass filter to be used between a signal generator's output and an input of an ADC. Basically, it works as an antialiasing filter.
The desired frequency specifications of this tunable filter are as follws:
start frequency - dc,
stop frequency - 20~50MHz which can...
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