Activity for Lorenzo Donati
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Edit | Post #289473 |
Post edited: |
— | about 1 month ago |
| Edit | Post #289473 | Initial revision | — | about 1 month ago |
| Answer | — |
A: Deriving resistor values for a taper pad attenuator Here is another take at that problem. First let's define some quantities that will be useful later: \[ \begin{align} A &= \frac {V2} {V1} \qquad\qquad B = \frac {RL} {RS} \qquad\qquad r1 = \frac {R1} {RL} \qquad\qquad r2 = \frac {R2} {RL} \qquad\qquad ... (more) |
— | about 1 month ago |
| Comment | Post #289423 |
@#8176 Yep, I had got your point, but I thought the example wasn't appropriate, because I think PID (as Process ID) is not off topic on EE. EE also encompasses telecommunications and real time systems, so I could well imagine, in a context of a question about a RTOS, people asking something related t... (more) |
— | about 1 month ago |
| Comment | Post #289421 |
Acknowledged! Thanks! (more) |
— | about 2 months ago |
| Edit | Post #280791 |
Post edited: Corrected an abbreviation which is too specific and may stump newbies. |
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| Edit | Post #289220 |
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| Comment | Post #289421 |
Thank you! Excellent summarization. (more) |
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| Edit | Post #289423 | Initial revision | — | about 2 months ago |
| Answer | — |
A: Tag creation/deletion criteria I agree with the answer of Lundin except for point 3 disambiguation. >Regarding 3), in case a term does have several different meanings and all meanings are on-topic, then the most common/jangon use of the term takes precedence. Instead, I would proceed in this way: In case a term has sever... (more) |
— | about 2 months ago |
| Comment | Post #289417 |
I completely agree.
In particular, for MCUs, the general architecture like `AVR` or `PIC` (or STM? is that a known designation for a general architecture of ST MCUs? I don't know), can be a good starting point under the MCU tag (people may be searching for questions about a general architecture). ... (more) |
— | about 2 months ago |
| Comment | Post #289348 |
@#8176 I can see your concern about having an explosion of tags like `relay-coil-voltages`, but that's why tag curation is important to identify "too-specific" tags. In my "semantic tag" view a tag should have the right to exist if it is specific enough to identify a *reasonably defined* area of expe... (more) |
— | about 2 months ago |
| Comment | Post #289348 |
@#8176 But see, `int const *` _is_ the same type as `const int *` (due to a quirk of the C grammar), so you have a blatant visual ambiguity, which is resolved *behind the scenes* by a semantic rule. A person not knowing the grammar faced with the three alternatives `int const *`, `const int *` and `i... (more) |
— | about 2 months ago |
| Comment | Post #289348 |
@#8176 What if you would want to convey the meaning of `coil-voltage` and `capacitor-current` in the same post? You would use the tags `coil`, `voltage`, `capacitor`, `current`. But there is no mechanism that guarantees the tags will be always displayed that way (Maybe devs will decide tags will be d... (more) |
— | about 2 months ago |
| Comment | Post #289348 |
@#8176 *"[...] such tags might give the post a meaning in combination with other tags."*
Here I strongly disagree. I see your POV of as "keywords" instead of as "semantic links" (my view). But there is a big problem when you say "in combination with other tags". In the current tag system there is ... (more) |
— | about 2 months ago |
| Comment | Post #289348 |
@#8176 First of all, thanks for your feedback.
*"I think we have to live with on-topic tags that hold no meaning [...] But also we should not make it harder to change tags than to invent them. If we allow everyone and their mother to create tags, which is usually the case, I don't think we can re... (more) |
— | about 2 months ago |
| Comment | Post #289348 |
@#56656 Sadly it's not possible for a user making an edit to avoid that "bump". There are discussions in CD.META to implement a checkbox to do that, but it's not there.
I think only devs can change things without bumping the question.
A workaround is to sort the questions by age, so you see them in... (more) |
— | about 2 months ago |
| Comment | Post #289348 |
@#8046 After I read your comment I realized *I did do* a mistake: I got the title of the post wrong (sorry for that). As you note, I said "capitalization change", whereas I also proposed deletion.
Thinking about it, I can recollect the genesis of that title. I just wanted to ask for capitalizatio... (more) |
— | about 2 months ago |
| Comment | Post #289348 |
@#8046 Thanks for your words, I really appreciate them. As for your proposal, that's OK for me. Do perform just the capitalization changes, they are needed anyway. Although it's the other tags deletion/merging that would allow me continue reorganizing the existing tags (some of those would have been ... (more) |
— | about 2 months ago |
| Comment | Post #289348 |
@#8046
As for the objection (D), sorry, definitely no: I'm *not* going to spend time correcting issues with any single post I retag. Some of those posts shouldn't even exist. BTW, I don't think there's a rule like on SE that mandates an edit being necessarily complete (maybe I missed that somewher... (more) |
— | about 2 months ago |
| Comment | Post #289348 |
@#8046
On the basis of that inference I put some effort into changing the status quo (objection B), a situation that was incredibly depressing: before I began my work the tags page had ***not even one*** guideline text, WIKI, synonym or parent. ***At all***. What I got from that was that (non excl... (more) |
— | about 2 months ago |
| Comment | Post #289348 |
@#8046
What I could add now is that objection (A) is not warranted: [_I did_ ask the community](https://electrical.codidact.com/posts/289204) about (1) tag guidelines (proposed by me) and (2) interpretation of the tags feature (at the end of my post). I received *no* objection at all, even from Lu... (more) |
— | about 2 months ago |
| Comment | Post #289348 |
@#8046 Frankly, **I don't know how to proceed**. The only [explicit disagreement is from high-rep user @#8176](https://electrical.codidact.com/posts/289348/289363#answer-289363), to the objections of whom I replied with my edit, at least mostly. ***They didn't reply in turn, yet.***
I identify es... (more) |
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| Edit | Post #289376 |
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| Edit | Post #289376 |
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| Edit | Post #289376 | Initial revision | — | about 2 months ago |
| Answer | — |
A: Cable loops between utility poles? Those are fiber optic cables that are wound back and forth between those "snowshoe" devices, which are used to limit the bend radius of the fiber. Those are needed to avoid propagation losses due to the fiber being bent more than its rated maximum bend radius. The fiber must have so much slack ... (more) |
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| Comment | Post #289363 |
@#8176 Please, see the edit in my question for a response. (more) |
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| Edit | Post #289348 |
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| Edit | Post #279080 |
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| Comment | Post #289349 |
@#8082 List of changes added to my question. Waiting for it to be applied. Thanks! (more) |
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| Edit | Post #289348 |
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| Edit | Post #289285 |
Post edited: Typo: corrected spelling, and capitalization according to SI rules. |
— | about 2 months ago |
| Edit | Post #289348 | Initial revision | — | about 2 months ago |
| Question | — |
How to request a mass-change in capitalization for tags? In my effort to clean-up and organize tags on EE.CD I arrived at a point where there are a lot of old tags with wrong capitalization. How should I request the staff to change them? Should I post here on meta a list (maybe as an edit in this post) with something like this: old --> NEW for ... (more) |
— | about 2 months ago |
| Edit | Post #285687 |
Post edited: Typos. Added relevant tag. |
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| Edit | Post #289344 |
Post edited: Typo (phone autocorrect?). |
— | about 2 months ago |
| Comment | Post #289345 |
Please, read the help to understand how this site works. This is not a forum. You can't simply post a question like this. A question cannot be made up just of links. It must stand on its own feet. Provide all the information needed to understand the question ***in the question itself***. Links are OK... (more) |
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| Edit | Post #280713 |
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| Comment | Post #289343 |
@#8045 It seems you missed a couple: `Circuit`, `differntial` (a typo), and `binary`. (more) |
— | about 2 months ago |
| Comment | Post #289343 |
Thanks a lot!!!!! (more) |
— | about 2 months ago |
| Edit | Post #289342 |
Post edited: |
— | about 2 months ago |
| Edit | Post #289342 | Initial revision | — | about 2 months ago |
| Question | — |
Big tags overhaul - 1st part - please delete those tags! I've just finished a first clean-up of the tags pages, where I consolidated tags, provided synonyms, wrote guidance text and defined some hierarchy. As a result there are quite a lot of "dead" tags that should be deleted (beginning at page 4 of 5). Please could a mod escalate this to the staff ... (more) |
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| Edit | Post #288222 |
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| Comment | Post #289090 |
@#64505 Statistically speaking, yes. But 1000 samples are too few to have that precision (99.7 is 3 significant figures), so you may well end up with 10 samples outside that range (or none). Take a million samples and you probably will have a *relative frequency* that matches that *probability* to 3 ... (more) |
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| Edit | Post #278065 |
Post edited: Corrected use of "non-standard" (hence unclear) abbreviation for operational amplifier. |
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| Edit | Post #278354 |
Post edited: Corrected use of "non-standard" (hence unclear) abbreviation for operational amplifier. |
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Post edited: Retagged. Corrected use of "non-standard" (hence unclear) abbreviation for operational amplifier. |
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| Edit | Post #289204 |
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| Comment | Post #289284 |
You are definitely right about units. I was planning to edit my post just yesterday adding an additional exception rule for units. After all, according to SI, uppercase units are those derived from people's name, so in the end it would largely fall under one of the rule I already stated. Anyway, it w... (more) |
— | about 2 months ago |
| Comment | Post #289285 |
I agree in principle, but there may be technical issues. I don't know much about modern HTML/web programming, but I've already seen problems in handling HTML entities, and also here on codidact. I fear that allowing entering arbitrary HTML entities could lead to problems. As a minimum we would need a... (more) |
— | about 2 months ago |
| Comment | Post #289280 |
I agree with your rationale behind differentiating between voltage and current (that's important in many different context). I think in most places you can do that using more specific tags. E.g. `current-loop`, `ground-loop`, `ground-bounce`, `4-20mA-loop`.
I'm trying to understand whether we cou... (more) |
— | about 2 months ago |
| Comment | Post #285170 |
@#36396 "I've got several ideas for papers, but it's hard to take the time." You could post in meta a question where you suggest the topics you think will be interesting. If you can't write a paper or a self-answered question, maybe someone else could.
This could also motivate some users to do som... (more) |
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| Edit | Post #289204 |
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| Comment | Post #276200 |
@#52987 My compliments for your drawing skills, then! Especially for that axonometric plot. (more) |
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| Edit | Post #289244 |
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| Edit | Post #289244 | Initial revision | — | about 2 months ago |
| Answer | — |
A: H(jω) does not exist for unstable systems, but we still use it when designing controllers - contradiction? I don't have that book, but the statement you cite (emphasis mine): > ... when s=jω the integral on the RHS of eq. 2.48 does not converge for unstable systems doesn't mean the transfer function for an unstable system doesn't exist. The book makes a lot of confusion between Transfer Fun... (more) |
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| Edit | Post #289220 | Initial revision | — | about 2 months ago |
| Answer | — |
A: Why 3.3V instead of 3V? Sorry, but I have to challenge your premises when you say that most numbers are "round numbers" and that could be a reason for choosing some value. You compare those values by the number of decimal digits, but that's the wrong comparison. You should compare the significant digits. In fact wh... (more) |
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| Edit | Post #280791 |
Post edited: Typo. |
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| Edit | Post #289217 | Initial revision | — | about 2 months ago |
| Question | — |
Tags about quantities: should we have them? I've noticed there are a lot of tags referring to general physical quantities (e.g. `current`, `voltage`, `frequency`) I'm not sure if they are useful. For example, what usage would have the tag `voltage`? If a question is about a particular voltage, e.g. breakdown voltage for a diode or threshol... (more) |
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| Edit | Post #286121 |
Post edited: Typos. |
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| Comment | Post #289205 |
Please, edit your question inserting the part number of those chips directly in the text, and maybe add a short excerpt of the datasheet.
As it stands if the links you provided breaks, your question will be quite useless for other people. (more) |
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| Edit | Post #279783 |
Post edited: Reformatted for better readability. Some minor grammar and wording adjustments. |
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| Comment | Post #289204 |
@#36396, @#8046 Thanks! (more) |
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| Edit | Post #289204 | Initial revision | — | 2 months ago |
| Question | — |
Tag naming guidelines. I've done a lot of work on tags lately and I'd like to share with the community some thoughts about the way tags should be named so that maybe it could become part of the FAQ and so hopefully lead to a more uniform tagging practice. + Acronyms should be spelled in all uppercase. This to avoid co... (more) |
— | 2 months ago |
| Comment | Post #276200 |
@#52987 May I ask you which software did you use for making that drawings and plots? (more) |
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| Comment | Post #276306 |
@#36396 OK, but there is no clear grammatical link to the previous sentences (firmware or execution is not mentioned in the previous test).
Maybe it's because I'm not a native English speaker, but rereading that part I can't completely understand it from the words alone. As I said, I got perfectl... (more) |
— | 2 months ago |
| Comment | Post #276306 |
Hi Olin! Great answer, BTW! I think there is a problem with this sentence ` If not, it stays in the bootloader constantly requesting a upload until something with a valid checksum gets loaded into memory. `
The general meaning is clear but the sentence seems weird. What "stays in the bootloader"... (more) |
— | 2 months ago |
| Edit | Post #278616 |
Post edited: Removed premise that is irrelevant to the question, but it is something about the rules of the website. |
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| Comment | Post #276295 |
@#52987 BTW, I notice now the link to that calculator is broken. (more) |
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| Comment | Post #276295 |
@#52987 Great! This has bothered me for a long time. I always suspected there there was some kind of exponential relationship between rated lifetime and actual lifetime wrt. temperature, but never found a source. Also good the relationship with actual working voltage (didn't know that at all).
All... (more) |
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| Edit | Post #276295 |
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| Edit | Post #278687 |
Post edited: Changed formatting to use real footnotes. |
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| Comment | Post #288246 |
Please, post better images. The details in your drawings are barely visible. (more) |
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| Edit | Post #286179 |
Post edited: Removed ambiguous tag: SAR alone means Synthetic Apertur Radar. Added more specific tag. |
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| Comment | Post #289161 |
@#36396 Yep! Thanks for the nudge, anyway. I will keep papers in mind in the future if I come up with something more structured and the time to write it. (more) |
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| Comment | Post #277090 |
@#53110 The one with the Zener won't work either. Even if you used a very low voltage Zener, or a couple of series-connected rectifiers, you would have at least 0.7V across R1, which means 2.6V to be shared between the LED and the CE terminals of Q1. Since this latter needs to be in its active region... (more) |
— | 2 months ago |
| Comment | Post #277090 |
@#53110 Although the circuits you post are nice, they won't work with such a low voltage as supply. They won't have enough compliance.
In particular your circuit with the TL431 can't work. You are trying to put the BE junction of the BJT into the control loop of the TL431 to get 2.5V at the emitt... (more) |
— | 2 months ago |
| Edit | Post #289161 |
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— | 2 months ago |
| Comment | Post #289161 |
@#36396 Thanks for your words. I really didn't think of papers. I was trying to write something for the wiki of the dynamic-resistance tag and it went "out of hands" quickly. So I thought to a "canonic" q&a.
Unfortunately I have no extra time to make good graphs (they are really time-wasters, at ... (more) |
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| Edit | Post #289161 |
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| Edit | Post #289161 |
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| Edit | Post #289161 |
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| Edit | Post #289161 |
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— | 2 months ago |
| Edit | Post #289161 | Initial revision | — | 2 months ago |
| Answer | — |
A: What is dynamic resistance? Is it related to differential resistance or to incremental resistance? Introduction Yes, all those terms denote the same concept, that of differential (or incremental, or dynamic) parameter of a device. In the following I will explain such a concept initially in the context of dynamic resistance, but it will be apparent that the same concept has a wider applicatio... (more) |
— | 2 months ago |
| Edit | Post #289160 | Initial revision | — | 2 months ago |
| Question | — |
What is dynamic resistance? Is it related to differential resistance or to incremental resistance? What is the concept behind the dynamic resistance that often pops up when dealing with non-linear components and the circuits in which they are employed? Is the concept related to other terms like differential resistance or incremental resistance? (more) |
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| Edit | Post #280537 |
Post edited: Improved tagging. |
— | 2 months ago |
| Edit | Post #279585 |
Post edited: Improved tagging. |
— | 2 months ago |
| Edit | Post #276883 |
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— | 2 months ago |
| Comment | Post #277272 |
@#36396 Just a curiosity: what's the software you use for the schematics you post? They are quite neat. I usually refrain from posting many schematics because the only software I have that lets me draw the schematic quickly is LTspice, but from a graphical POV their appearance is a bit ugly. (more) |
— | 2 months ago |
| Edit | Post #277271 |
Post edited: Added appropriate tag. Removed misleading tag. |
— | 2 months ago |
| Edit | Post #277271 |
Post edited: Added appropriate tag. Removed misleading tag. |
— | 2 months ago |
| Comment | Post #281307 |
I totally agree on the general content of your answer. However I object on your final statement "Trying to split hairs about what they maybe should have called these pins is pointless". It seems you are trying to dismiss the OP concerns about "are NC pins actually NC?" and that's where I don't agree.... (more) |
— | 2 months ago |
| Edit | Post #289149 | Initial revision | — | 2 months ago |
| Question | — |
How about a `basic-circuit-block` tag? I'm in the process of giving the tags page some structure, writing tag descriptions and creating synonyms and some hierarchy. I'd like to know the Community stance on a new tag I'd like to add: `basic-circuit-block` It should act as a parent for tags that denote all those basic electronic ci... (more) |
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| Edit | Post #288969 |
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| Comment | Post #282151 |
The image of the website that shows a step-down DC-DC converter doesn't seem to be that of an *inductorless* converter, as you hint in the text of your post. That big gray square thing with that 100 printed on it seems just a 100μH inductor to me. (more) |
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| Edit | Post #288969 |
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| Edit | Post #276138 |
Post edited: Reformatted for better readability. Some minor grammar and wording adjustments. |
— | 2 months ago |
| Edit | Post #276928 |
Post edited: Reformatting for better readability. |
— | 2 months ago |
| Edit | Post #285814 |
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— | 2 months ago |
| Edit | Post #288922 |
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— | 2 months ago |
| Edit | Post #289110 | Initial revision | — | 2 months ago |
| Answer | — |
A: What effect will extreme temperatures have on characteristic impedance of a wire? RG58 cables come in different variations, even with Teflon dielectric suitable for 200°C operations. Your cable, being suitable for up to 80°C, seems to be one of those with a PVC jacket and Polyethylene inner insulator, like this. It's bad news for several reasons, and Olin explained a few. I'll... (more) |
— | 2 months ago |
| Edit | Post #286594 |
Post edited: Added adjective "characteristic" to "impedance" in title and in the content to clarify the question and avoid confusion with other types of impedances. |
— | 2 months ago |
| Edit | Post #286613 |
Post edited: Inserted location in the title (was given in a comment to an answer). Reformatted content. Improved grammar. Added SI unit value for distance in feet. |
— | 2 months ago |
| Suggested Edit | Post #286594 |
Suggested edit: Added adjective "characteristic" to "impedance" in title and in the content to clarify the question and avoid confusion with other types of impedances. (more) |
helpful | 2 months ago |
| Suggested Edit | Post #286613 |
Suggested edit: Inserted location in the title (was given in a comment to an answer). Reformatted content. Improved grammar. Added SI unit value for distance in feet. (more) |
helpful | 2 months ago |
| Edit | Post #289107 |
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— | 2 months ago |
| Edit | Post #289107 | Initial revision | — | 2 months ago |
| Answer | — |
A: Low-pass filter after the output DAC in CD players One of the main reasons was hinted by Olin's answer, at the end, when he spoke about non-linearities. The same is hinted in the excerpt in Nick Alexeev's answer ("they would overload the player amplifier"). I want to be explicit and mention a very easy example: consider a simple amplifier with a v... (more) |
— | 2 months ago |
| Edit | Post #287535 |
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— | 2 months ago |
| Edit | Post #287555 |
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— | 2 months ago |
| Edit | Post #287554 |
Post edited: Typos and grammar. General formatting. |
— | 2 months ago |
| Suggested Edit | Post #287535 |
Suggested edit: Typos. (more) |
helpful | 2 months ago |
| Suggested Edit | Post #287555 |
Suggested edit: Typos. (more) |
helpful | 2 months ago |
| Suggested Edit | Post #287554 |
Suggested edit: Typos and grammar. General formatting. (more) |
helpful | 2 months ago |
| Edit | Post #281322 |
Post edited: Made the title more coherent with the content of the post, while trying to preserve its original form. |
— | 2 months ago |
| Suggested Edit | Post #281322 |
Suggested edit: Made the title more coherent with the content of the post, while trying to preserve its original form. (more) |
helpful | 2 months ago |
| Edit | Post #289094 | Initial revision | — | 2 months ago |
| Answer | — |
A: Why is the resistance of water so high and still so dangerous? Most of the issues have been discussed by other answers. However I would like to clarify something about pure water (a.k.a. "distilled water" or "demineralized water"), which is "apparently" not a good conductor and would seem to pose less danger than tap water or other "dirty water". To avoid giv... (more) |
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| Edit | Post #289090 |
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| Edit | Post #289056 |
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— | 2 months ago |
| Edit | Post #289090 |
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| Edit | Post #289090 | Initial revision | — | 2 months ago |
| Answer | — |
A: Is the noise of op-amps and ADCs Gaussian, possibly with zero mean? Your title question about the "Gaussianity" brings up a lot of thorny issues, since noise in electronic components is quite a difficult topic from a physical, fundamental point of view. TL;DR: From a designer perspective: + Noise is assumed to have zero mean because even if it had non-zero m... (more) |
— | 2 months ago |
| Suggested Edit | Post #289056 |
Suggested edit: Cleaned up formatting and wording. Added math formatting. (more) |
helpful | 2 months ago |
| Edit | Post #289074 |
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— | 2 months ago |
| Edit | Post #289074 | Initial revision | — | 2 months ago |
| Answer | — |
A: Is English translation of technical terms on-topic? I think we should definitely allow technical terms translations, because it's really difficult to find reliable sources online. And the translation process can be tricky, since the translated term can be context sensitive. Some examples in Italian: array antennas --> antenne a schiera ("schiera" h... (more) |
— | 2 months ago |
| Edit | Post #289073 | Initial revision | — | 2 months ago |
| Answer | — |
A: Creating a FAQ: how to read a datasheet I agree with Olin and Mu3 answers. I'll add that you should aim not for just one kind of "high level" component, but many more basic ones. Not every EE course is the same across the world, and many different degrees fall under the EE umbrella term, and not every one of them has the same level of e... (more) |
— | 2 months ago |
| Edit | Post #288969 |
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— | 3 months ago |
| Comment | Post #288971 |
@#36396 BTW, Interesting the hint of using pots instead of fixed resistors. Maybe is there a slightly more complex setup or a different technique that allows (maybe with more complicated math) to use shorter cables?
Math with complex numbers is OK(-ish), since it can be implemented in a spreadshe... (more) |
— | 3 months ago |
| Comment | Post #288971 |
@#36396 Thank you very much for your detailed explanation!
The only problem is the length of the cable. We don't have so much cable at school (essentially we would use scraps from various installations or old instruments, which often are between 80cm and 1.5m in length – typical example is ... (more) |
— | 3 months ago |
| Edit | Post #288969 |
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— | 3 months ago |
| Edit | Post #288969 | Initial revision | — | 3 months ago |
| Question | — |
Is there an easy way to measure the characteristic impedance of a cable using basic lab instruments? As the title says, I'm interested in a simple technique to measure the characteristic impedance of a cable using only the instruments available in a school lab or to a (somewhat advanced) hobbyist. In particular: + Digital oscilloscope with 50MHz bandwidth and simple passive probes (x1, x10). ... (more) |
— | 3 months ago |
| Edit | Post #288964 |
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— | 3 months ago |
| Edit | Post #285201 |
Post edited: Replaced link to dubious website (required enabling javascript and cookies), with direct link to PDF document from the original publisher of the poster. |
— | 3 months ago |
| Suggested Edit | Post #285201 |
Suggested edit: Replaced link to dubious website (required enabling javascript and cookies), with direct link to PDF document from the original publisher of the poster. (more) |
helpful | 3 months ago |
| Edit | Post #288964 |
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| Edit | Post #288964 | Initial revision | — | 3 months ago |
| Answer | — |
A: Is ESD overhyped? Something that hasn't been mentioned in other posts yet is that ESD events needn't be utterly destructive. Most ESD events are "microevents". That is, they don't damage a part by rendering it non-operative, but they simply degrade its characteristics. This is more evident in parts used for their p... (more) |
— | 3 months ago |
| Edit | Post #287400 |
Post edited: Removed "stray" words (possible leftover from previous editing?). |
— | 3 months ago |
| Suggested Edit | Post #287400 |
Suggested edit: Removed "stray" words (possible leftover from previous editing?). (more) |
helpful | 3 months ago |
| Edit | Post #288954 |
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— | 3 months ago |
| Edit | Post #288954 | Initial revision | — | 3 months ago |
| Answer | — |
A: How can we grow this community? I just submitted a proposal to DuckDuckGo here for a new "bang" for their search syntax. If approved: `!coddee searchterm` will trigger the following URL: `https://electrical.codidact.com/posts/search?search=searchterm` I did the same for SW Development Codidact (here the announcement). ... (more) |
— | 3 months ago |
| Edit | Post #288922 |
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| Edit | Post #288922 |
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— | 3 months ago |
| Edit | Post #288922 |
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| Edit | Post #288922 |
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— | 3 months ago |
| Edit | Post #288922 |
Post edited: Typos in math formatting. |
— | 3 months ago |
| Edit | Post #288922 | Initial revision | — | 3 months ago |
| Question | — |
Are a JFET's Idss and Vgs(off) values correlated? I know that many JFETs parameters have a very large manufacturing spread, in particular, $I{DSS}$ and $V{GS(off)}$, as one can see (for example) in this datasheet excerpt: J175/J176 datasheet header ... J175/J176 datasheet - electrical characteristics table My question is if the spread of... (more) |
— | 3 months ago |
| Comment | Post #288641 |
@#52935 BTW, sometimes commercial products can be incredibly sturdy, despite their price tag. I still use a Logitech wireless keyboard purchased more than *at least* 18 years ago! I use it daily and the silkscreen on the keys has not worn off a bit, despite the plastic having become a bit glossy from... (more) |
— | 3 months ago |
| Comment | Post #288641 |
@#52935 Hi Nick! I understand your concerns, but again, the smoke that may cloud non-technical people vision in a general news forum should not affect us. We are not flooded with questions or answers, so we have no problems of dumb answers given by some random guy who just want to post some opinionat... (more) |
— | 3 months ago |
| Comment | Post #288641 |
@#52935 I'm definitely with Olin here. This site is about education and the willingness to learn. The fact that a curiosity was prompted by the news is irrelevant. The question should be based on its own merit, and Olin has already stated those. There is no shame for a newbie or a non specialist to a... (more) |
— | 3 months ago |
| Comment | Post #286121 |
Very nice breakdown. A good reference to keep around, especially for newbie people that lack the experience for guessing MISRA-C (and other guidelines for embedded) rationale. (more) |
— | 3 months ago |
| Edit | Post #288890 | Initial revision | — | 3 months ago |
| Answer | — |
A: What material is used in the tabs of power packages? (TO-220, D2PAK, etc.) A definitive answer is hard to give, since the information is not easily available. However, after a bit of research I'm inclined to believe that the most common materials are copper, copper alloys or sometimes Fe-Ni alloys, plated with some other material to prevent oxidation. Note that the tab i... (more) |
— | 3 months ago |
| Edit | Post #282671 |
Post edited: Substituted formula images with MathJax syntax (with corrections). Some grammar edit. |
— | almost 2 years ago |
| Comment | Post #283265 |
Bottom line: **never use XOR gates with more than 2 inputs if you want to avoid misunderstandings**. Even if you place a big caveat in the design notes or even on the schematic, chances are someone will miss it and guess the wrong semantics for that gate. In some situations this will ruin someone's d... (more) |
— | about 2 years ago |
| Edit | Post #282820 |
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— | about 2 years ago |
| Comment | Post #282848 |
OK, no problem. I value your opinion. I have no strong feelings about those disclaimers, anyway. (more) |
— | about 2 years ago |
| Comment | Post #282850 |
I think your idea of creating another category is the way to go long term. Textbook-like material doesn't lend itself too well to be put in Q+A form, IMO, and the Q would be really artificial most of the times. And a waste of time to get right, since the essence of the thing lies entirely in the answ... (more) |
— | about 2 years ago |
| Comment | Post #282849 |
I'm not convinced that citing EESE would be so harmful (note that I'm *not* going to link to the original answer). It's highly probable that someone searching the web would find EESE answers first, so I don't think we do them any favor by stating their name.
On the contrary, it may also mildly ma... (more) |
— | about 2 years ago |
| Comment | Post #282849 |
Your points 2, 3 and 4 are really about what I intended to do. The disclaimer I planned to insert have the purpose to avoid people finding the answer on EESE and thinking that I plagiarized that content. Even if it was really mine, I bet that many people won't check the name of the poster (even if I ... (more) |
— | about 2 years ago |
| Comment | Post #282849 |
I agree that bulk-importing all my content from EESE is not a good thing. Something is too specific to the original question, which is too specific as well, and something would require too much work to adapt. So I already intended to only migrate only select answers.
Note that my plan already was ... (more) |
— | about 2 years ago |
| Edit | Post #282848 | Initial revision | — | about 2 years ago |
| Answer | — |
A: What are the guidelines for porting one's answers from ElectricalEngineering.SE, if any? Since my question didn't get an answer yet, I post this answer as a possible solution. What I'll describe is not meant to be the right way to port an answer from SE network, but just a possible right way. So if you feel another approach could work as well, please add an answer here. Premise... (more) |
— | about 2 years ago |
| Suggested Edit | Post #282671 |
Suggested edit: Substituted formula images with MathJax syntax (with corrections). Some grammar edit. (more) |
helpful | about 2 years ago |
| Edit | Post #282820 | Initial revision | — | about 2 years ago |
| Answer | — |
A: Are questions about electronics market trends on-topic? I largely agree with Olin Lathrop's answer. However, I think questions should be on-topic also if the trends have no direct technical motivations, on condition that the reasons can be backed by hard data in the context of a potential or actual design. For example, imagine you are planning to d... (more) |
— | about 2 years ago |
| Edit | Post #282774 |
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— | about 2 years ago |
| Edit | Post #282774 |
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— | about 2 years ago |
| Edit | Post #282772 |
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— | about 2 years ago |
| Edit | Post #282773 |
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— | about 2 years ago |
| Comment | Post #282575 |
"The usual downsides of slow operation, power to maintain the on state...". Could the "maintaining the on state" issue be handled using latching type relays? (more) |
— | about 2 years ago |
| Edit | Post #282774 | Initial revision | — | about 2 years ago |
| Answer | — |
A: How about a new section for code reviews? I'm too new to this site's mechanics to judge whether a new category is warranted or not. However I really welcome the idea of supporting design reviews (both HW and SW) to a larger extent than simple troubleshooting a specific part of a design, which is already allowed now. I would particularl... (more) |
— | about 2 years ago |
| Edit | Post #282773 | Initial revision | — | about 2 years ago |
| Question | — |
What are the guidelines for porting one's answers from ElectricalEngineering.SE, if any? I've noticed that in the edit account section there is a (inactive) link to one's content on a StackExchange site. This made me wonder if it is appropriate to transfer some content from EE.SE manually. I have quite a bunch of good answers there and I'd like to "migrate" them here, perhaps after... (more) |
— | about 2 years ago |
| Edit | Post #282772 |
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— | about 2 years ago |
| Edit | Post #282772 | Initial revision | — | about 2 years ago |
| Question | — |
Can a paper be a tutorial or textbook-like? Although I joined Codidact from the beginning, I was never truly active and lost track of the development of the system and this site in particular. I've read the help and the "paper" category looks interesting (it seems to address some of the suggestions I made in the very early brainstorming da... (more) |
— | about 2 years ago |