Comment by periblepsis on What is displacement current in electromagnetism?...
These are the meanings of displacement. Both. My way of wording the first, is to say that it's when there is a tiny shift in the electron sea, which is extremely small -- less than an atomic diameter...
View ArticleComment by periblepsis on Why to impedance match a transistor if there is no...
@cm64 I still don't understand what you want to hear. You juxtapose two arguments where one author says it is to avoid reflection and the other says it is to maximize power. Then you say you don't want...
View ArticleComment by periblepsis on How best to measure the noise level & stability of...
See: making noise measurements. It won't answer your question about what to do with your scope. But it may suggest that ignorantly using the scope probably isn't useful.
View ArticleComment by periblepsis on Calculating admittance matrix for the 11-bus Two...
MForystek: You understand your system. I'd have to get into a dialog, which I'm going to avoid. But if you carefully watch these video lessons you will find that they likely cover all of the necessary...
View ArticleComment by periblepsis on Best sensor for developing an IOT device to detect...
@ChesterGillon The question I have for this system is whether or not a person doing their best to stay as still as possible may then disappear. In the video, the person sitting in the chair makes sure...
View ArticleComment by periblepsis on Stop Electric Motor Wirelessly?
@Hearth 's suggestion is the sensible one. Your question is less so, wanting some kind of magnetic (and likely from a distance) method that wasn't originally designed into the motor system. If you are...
View ArticleComment by periblepsis on Exactly how does a Zener diode reset a current...
As Justme writes, though I have issues with the choice of wording, it's due to \$\frac{V_{\small{L}}}{L}=\frac{\text{d}I_{\small{L}}}{\text‌​{d}t}\$ --> The larger the voltage difference applied...
View ArticleComment by periblepsis on What is displacement current in electromagnetism?...
condor12: I'd recommend that you get the 4th edition (or later) of "Matter & Interactions" by Chabay and Sherwood. The book is over 1000 pages, all of it excellent and told from a crystal clear...
View ArticleComment by periblepsis on Reverse polarity protection for a 60V, 100A circuit
@Hearth Either the questioner has prior experience, in which case they already know this, or else they do not, and this whole entire problem is far, far beyond them. From reading, I see no evidence of...
View ArticleComment by periblepsis on Transmission Line Design and Bus Matching
What is the course title and textbook being used for the course?
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Answer by periblepsis for How to Eliminate the DC ripple?
Many years ago, a series inductor was used. Here's a schematic taken from REPORT CRPL-9-9, June 3, 1949, from the National Bureau of Standards:Note the \$6\:\text{H}\$ inductor?? I found these in...
View ArticleComment by periblepsis on Will high-side PMOS-based reverse polarity...
@Hearth Either the questioner has prior experience, in which case they already know this, or else they do not, and this whole entire problem is far, far beyond them. From reading, I see no evidence of...
View ArticleComment by periblepsis on For what reasons could my embedded controller's...
@HydroPage I'd like to see a useful diagram of the setup, including information about how much variation there may be in sampling your encoder input and in setting the control output. I gather you are...
View ArticleComment by periblepsis on Fuel Gauge IC for Primary Cell
You know how long the system is awake and how long it isn't. Tracking time in each mode and integrating you can work out the energy consumed to date. Knowing that and knowing, a priori, the battery...
View ArticleComment by periblepsis on THD of AB class amplifier in simulation
@klauri To add to G36's comment, you will need \$\pm 43\:\text{V}\$ to take into account two bipolars on each quadrant, plus degeneration margins. If there's ripple on the supply rail, then that's...
View ArticleComment by periblepsis on What might be wrong with my very simple low voltage...
You'll want something like a schmitt trigger (hysteresis.)
View ArticleComment by periblepsis on How can I make a voltage source get a different...
It doesn't work. Just tried it. Kept it simple, so V1 N001 0 {if(p,5,PULSE(6 6 0 0 0 0)} gets Questionable use of curly braces in "v1 n001 0 {if(p,5,pulse(660000)}" and an assumption of 0 V. And while...
View ArticleComment by periblepsis on How does this totem pole driver work for a high...
What's the voltages at the two rails, top and bottom? Are they +15 for the top and 0 for the bottom? Or? (I don't want to bother thinking about it without that info.) Is that IC powered by +5? Details...
View ArticleComment by periblepsis on What might be wrong with my very simple low voltage...
@TonyM I don't see it in simulation. Could you perform a calculation for me. Or point me towards one that I could perform to demonstrate your point? I'd love to examine your idea in more detail. It may...
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Answer by periblepsis for How can I make a voltage source get a different...
You may parameterize the PULSE, itself:
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