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Answer by periblepsis for Is there a rule for assigning polarities to...
Take your first diagram and run with it.What I've done is added green and blue colored currents to the diagram. They show you the direction of the assumed current in each resistor, based upon your...
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Answer by periblepsis for How to find a characteristic equation for the...
KCLGrounding the bottom node, find this KCL for the top node (\$v\$):$$\begin{align*}\frac{v}{R}+\frac1{L}\int v\:\text{d}t+C\frac{\text{d}}{\text{d}t}v+i_0&=...
View ArticleComment by periblepsis on Solar charging in northern urban environment -...
Look up terms like energy harvesting with solar. Be aware that Texas Instruments is working with partners to create appropriate battery storage (which is kind of a bridge between capacitors and the...
View ArticleComment by periblepsis on ODU angle 60 or 80 degrees?
@Jtl Get one of these. Or else take a measurement from one side of the barrel to the other, so as to include the height of one of the bumps (should be more than 10.02 mm.) And why do you insist on...
View ArticleComment by periblepsis on Is there a proper, general umbrella term for...
@PrashanthC Perhaps functional circuit graph or circuit function graph could be invented for you. The basic idea is that its about circuits and not something else, so circuit is included; that it is...
View ArticleComment by periblepsis on Is it possible to connect two (or more) neon sign...
@durgo Visit this page: d.i.y. 15 kV @ 30 mA Floating-Output AC or DC High-Voltage Power Supply. You can adapt that design to create much more current compliance than 30 mA. The author is a physicist...
View ArticleComment by periblepsis on Why are microprocessors made using silicon and not...
The properties of silicon and germanium are found here. The resistivity is markedly different between the two. The linked page has a poor choice of words, writing "good conductors" without defining the...
View ArticleComment by periblepsis on Can you determine the values using LTspice...
@Kalapasa Hit F2, then find current in the list. That is your direct current source.
View ArticleComment by periblepsis on How to find a characteristic equation for the...
@TSLee If you believe what you wrote, that "the textbook solution doesn't make sense that iL(t) at t = 0 should start from 0", then there's no point updating your solution. It will be wrong. They get...
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Answer by periblepsis for Circuit Analysis Q's
Your diagram with your annotations, plus my addition using the passive sign convention for the resistors. (The more \$+\$ end of a resistor is where the current arrow enters the resistor and the more...
View ArticleComment by periblepsis on Fan dimmer using MOC3021 and TRIAC suddenly stopped...
Aditi, why did you select the MOC3021 instead of the MOC3061?
View ArticleComment by periblepsis on Low noise high voltage gain amplifier
Source impedance, desired bandwidth, operating temperature range, and dynamic range of the input signal are starting questions...
View ArticleComment by periblepsis on 100 MHz probe and 200 MHz probe show very different...
Were the probes calibrated?
View ArticleComment by periblepsis on Calculating Currents and Power in a Circuit with...
I just looked at Simon's response, looked at your "I'm looking for a methodical approach to solve this, possibly with steps that I can apply to similar problems in the future.", and realized that...
View ArticleComment by periblepsis on Op-Amp Selection for Dummies
You write, "I am new to Op Amps". In general, and if possible, it's a good idea to operate opamp inputs within a few tens of millivolts between each other and both roughly in the middle of their power...
View ArticleComment by periblepsis on Advice on RF circuit design - Pseudo-Doppler
Any chance you may try to interest a teacher in an EE department? They may be able to use your skills to combine with a capstone project for their students, while at the same time providing you with...
View ArticleComment by periblepsis on Using a 4-Pole Relay to trigger a switch for a...
@trevleyb This is a highly specialized area. I think you may need another enthusiast, but one more familiar with the electronic and signalling details, to help sort out a solution using existing...
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Answer by periblepsis for Calculating Currents and Power in a Circuit with...
In comments you wrote:"I am familiar with Kirchhoff's laws from High School. How do we apply it here?"First, you identify the nodes. I've taken a green sprayer and circled each of the three nodes in...
View ArticleComment by periblepsis on How to control 0-5V in 5 steps? (1V, 2V, 3V, 4V and...
A 5 position rotary switch with a nice knob would be aesthetic for me. What's the required compliance current?
View ArticleComment by periblepsis on How do I make an audio detection system?
@JoyadittyaDebnath There's a project design and final report on just such a system. It targets, coincidentally, 1 kHz. Both page links from MIT.
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