Comment by periblepsis on Nodal Analysis on Supermesh Questions
@Yesk Don't try to decide which is lower and which is higher. The universe itself doesn't care about your perspective. So it doesn't matter. So long as you are consistent in approach and...
View ArticleComment by periblepsis on High frequency PCB Design for Low Noise Amplifier
Generous of you to take this on. There's way too little in the question. But very nice response to help out. And I learned something in reading it. So +1.
View ArticleComment by periblepsis on Finding overlap area when using graphical method...
Write more. Are you attempting this?
View ArticleComment by periblepsis on Is LTSPICE used for fast simulation?
I can suggest two: LTspice and QSPICE. You should try both for your situation. The programmer for both is the same person: Mike Engelhardt. But QSPICE is his newer work and includes some special...
View ArticleAnswer by periblepsis for Nodal analysis with inverse Laplace transform of a...
You can use Laplace to show that the output is related to the cosine driving the...
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Answer by periblepsis for Transistor resistance
You need to write a lot more. For example, what is \$R_m\$? Is it \$r_e^{\:'}\$? (I'm randomly guessing.) What does when it's open mean in the case of looking into the emitter, which implies a common...
View ArticleComment by periblepsis on Finding value of R so that the power it receives is...
@PhúcĐỗ Please do take a moment and write about what you think you know and what parts make you feel adrift with no idea where to go. All of us go through this in our own ways. If this whole problem is...
View ArticleComment by periblepsis on Output/Input Impedance of Common Emitter BJT with...
Are you reading the same book I have here, from 2006/2007? What section are you reading? (I'm looking at 4.4.) Where did that diagram you show come from? (The book does discuss \$Z_L\$, fairly clearly.)
View ArticleComment by periblepsis on Trying to minimize product terms for GAL16V8
Of the eight combo outputs, only 6 of them are fed back to the grid. (Assuming this is in 'simple mode') Can't you just see if you can lay this out by hand? That's what I'd do if I ran into this...
View ArticleAnswer by periblepsis for Electrical analysis using nodal voltage method
For KCL (nodal) you only have two unknown node voltages, \$v_b\$ and \$v_c\$. So that's only two KCL equations.The rest is just defined. You know for a fact that \$v_a=3i_2\$, so no need for KCL on...
View ArticleComment by periblepsis on Will this work to ground a cheap soldering iron?
The UK single phase has neutral, line,, and earth. The neutral is either tied to earth at the panel or at the substation. I think you may be over thinking this. Check to see if the tip ohm's out to the...
View ArticleComment by periblepsis on Trying to minimize product terms for GAL16V8
I'm glad I mentioned the simple mode in comments. Since you have your answer, you should probably just select it now. That will help others avoid extended time reading this and wondering if they should...
View ArticleComment by periblepsis on Self-Defined Problem - Verification of Work...
Why don't you just change the basis vectors, make it simple, and check your own results? The work is just \$U_1-U_q=\frac{k}{r_1}-\frac{k}{r_q}\$ and \$U_2-U_q=\frac{k}{r_2}-\frac{k}{r_q}\$. Or am I...
View ArticleComment by periblepsis on Copper attachments for PCB, for better thermal and...
It is hard to believe that thermal design wasn't first and foremost for a high power application and instead seems to be an afterthought. Provide some pictures, I guess. Maybe something can be said.
View ArticleComment by periblepsis on Would a pure iron core inductor be better for...
@TomášZato This EESE answer discusses using a series inductor, which I recall in some old power supplies. This EESE answer, towards the end, discusses the use of a relay that bypasses a series resistor...
View ArticleComment by periblepsis on What is the correct way of using FFT in LTspice for...
You will want to include a repetitive square wave and give it at least a few cycles to work with. Also, make it an integer number of cycles as best you can. Otherwise, windowing becomes more of an...
View ArticleComment by periblepsis on What is the name for this BC-BE back-to-back...
jonathanjo, Go here. Very much more information and specific design detail procedures are found there. It can be made fairly temperature-stable.
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Answer by periblepsis for What is the name for this BC-BE back-to-back...
I took a moment and checked all the references within the time I allowed. Including a book by Linden Harrison called Current sources & Voltage References, which is an historical reference of the...
View ArticleComment by periblepsis on Help Understanding Op-Amp Mixing of Square Waves...
I had hoped, in asking, that this schematic may have had a source which provided an explanation of the surrounding purpose and its function within that purpose. But you are the source. So that hope is...
View ArticleComment by periblepsis on Is corona discharge immediately harmful in and of...
Why ask here? This isn't an electronics question, in my opinion. And you can look up a variety of papers on the topic. Just search the literature. A quick hit I got on NCBI tells me that there are a...
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