Comment by periblepsis on What would be the low pass filter cutoff frequency...
I think a little more than one/two sentences is going to be required. But it's your question, so do as you like.
View ArticleComment by periblepsis on Thyristor blowing up in a coilgun
@lukakopa Just to be clear, you say 770 A peak. There are six devices where the datasheet says 70A. I'm trying to add things up and coming up short. One possibility that would fit some use and then one...
View ArticleComment by periblepsis on What is wrong with my Colpitts oscillator?
Help_me, I started out wanting to say a few things... gave up. Instead, just decided to refer to the experts. This article from ARRL is a must-read for you, I think. They cover your frequency of...
View ArticleComment by periblepsis on Standard practice for storage of old / unused...
I forget where I read it (and I'm not remembering all the chemist-written details because they were writing about three or four kinds of lithium batteries), but I do remember that the text written for...
View ArticleComment by periblepsis on How does online code editing work in a PLC?
It's not just code. It's also all the data that informs the code of what's going on at the time. New code might have additional data items that have no known way to properly initialize them to "just...
View ArticleComment by periblepsis on What is a "neutral-forming transformer" (NFT)
@Ellipticalview Only someone familiar with that company's products would be able to discuss the safety needs for constructing a split phase neutral when service is out and solar and or local batteries...
View ArticleComment by periblepsis on What exactly does the limiter do in FSK demodulators?
Probably should spend some time reading this.
View ArticleComment by periblepsis on What do we mean when we say something is done "in...
If I write software for a mixed language toolchain, capable of sufficient analysis to generate not one but several runtime CPU architectures and control software, even including self-modifying...
View ArticleComment by periblepsis on Looking for intuition for KVL regarding parallel...
@vir My PCP's name is Promporn. I'll keep an eye out. ;)
View ArticleComment by periblepsis on Is the value of the vx -10v or -6v?
It sounds like you never tried, asked someone else, and now want to be told the answer and why. Appears posted several times already: Chegg #1 and Chegg #2.
View ArticleComment by periblepsis on How are flipflops with SR, RS, S'R', Qn Qn' in both...
Hey. Where's my asynchronous clear and preset for my master slave JK? My favorite 7476 IC type? I don't see it up there... ;)
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Answer by periblepsis for How to go with this RC circuit?
Assigning \$v_1\$ to the node between \$R_1\$ and \$C_1\$ and assigning \$v_2\$ to the remaining node (with \$R_2\$ and \$C_2\$) the KCL...
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Answer by periblepsis for How to solve Thevenin and Norton circuit?
In your example, you know you got \$-35\:\text{V}\$ and, when a \$10\:\text{V}\$ source was connected you then got \$1.125\:\text{A}\$. So the Thevenin resistance is...
View ArticleComment by periblepsis on Transistor latch
@KaliBot I'm just reading this and it looks like what you are trying to do is coming out in drips and drabs. What exactly do you really want? Is this about powering an Arduino, perhaps via a manual...
View ArticleComment by periblepsis on SN74HC165 shift register not communicating properly...
@user3161330 Isn't \$H\$ (pin 6) an input? I see that you've wired it over to something called out. Also, these being HC parts, all inputs should be tied to something -- ground or power. Not so? What...
View ArticleComment by periblepsis on Transimpedance amplifier with parallel RC
Given enough time, C will charge to vc=is*R and d/dt vc=0. Where is the conflict?
View ArticleComment by periblepsis on Potential energy of a uniformly charged parallel...
You get the same answer with K=1. But different when K ne 1. You are taking two snapshots from two different methods. But there is external energy involved in inserting a dielectric -- not accounted...
View ArticleComment by periblepsis on I stumbled upon this question in KCL, I think...
The first three equations only have one solution where \$i_3=0.00189463639807230\$. You can't then just arbitrarily change that value. There's no solution at the new point.
View ArticleComment by periblepsis on Trying to heat up 32-gauge nicrome wire
Get a variable voltage supply with current limit capability. They are not particularly expensive. You probably don't need a lot of current compliance so focus on buying higher voltage range. Gradually...
View ArticleAnswer by periblepsis for Collector current vs. collector-emitter voltage
There's a couple of clarifications I need to make before I can address your questions.Although textbooks far too often show charts having \$V_{_\text{CE}}\$ as the x-axis for certain illustrations...
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