Activity for Lorenzo Donati
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| 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) |
— | 9 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) |
— | 9 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) |
— | 9 months ago |
| Edit | Post #284207 |
Post edited: Retagged. |
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| Edit | Post #282671 |
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| Edit | Post #289204 |
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— | 9 months ago |
| Comment | Post #276200 |
@#52987 My compliments for your drawing skills, then! Especially for that axonometric plot. (more) |
— | 9 months ago |
| Edit | Post #289244 |
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| Edit | Post #289244 | Initial revision | — | 9 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) |
— | 9 months ago |
| Edit | Post #289220 |
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| Edit | Post #289220 |
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| Edit | Post #289220 |
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| Edit | Post #289220 | Initial revision | — | 9 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) |
— | 9 months ago |
| Edit | Post #280791 |
Post edited: Typo. |
— | 9 months ago |
| Edit | Post #282627 |
Post edited: Typo. |
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| Edit | Post #289217 | Initial revision | — | 9 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) |
— | 9 months ago |
| Edit | Post #286121 |
Post edited: Typos. |
— | 9 months ago |
| 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) |
— | 9 months ago |
| Edit | Post #279783 |
Post edited: Reformatted for better readability. Some minor grammar and wording adjustments. |
— | 9 months ago |
| Comment | Post #289204 |
@#36396, @#8046 Thanks! (more) |
— | 9 months ago |
| Edit | Post #287435 |
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— | 9 months ago |
| Edit | Post #277275 |
Post edited: Retagged. |
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| Edit | Post #280819 |
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— | 9 months ago |
| Edit | Post #279783 |
Post edited: Retagged. |
— | 9 months ago |
| Edit | Post #289204 | Initial revision | — | 9 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) |
— | 9 months ago |
| Comment | Post #276200 |
@#52987 May I ask you which software did you use for making that drawings and plots? (more) |
— | 9 months ago |
| 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) |
— | 9 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) |
— | 9 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. |
— | 9 months ago |
| Comment | Post #276295 |
@#52987 BTW, I notice now the link to that calculator is broken. (more) |
— | 9 months ago |
| 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) |
— | 9 months ago |
| Edit | Post #276295 |
Post edited: Typo. |
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| Edit | Post #278687 |
Post edited: Changed formatting to use real footnotes. |
— | 9 months ago |
| Edit | Post #279746 |
Post edited: Typo. |
— | 9 months ago |
| Comment | Post #288246 |
Please, post better images. The details in your drawings are barely visible. (more) |
— | 9 months ago |
| 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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| Edit | Post #289161 |
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| Edit | Post #289161 |
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| Edit | Post #286179 |
Post edited: Removed ambiguous tag: SAR alone means Synthetic Apertur Radar. Added more specific tag. |
— | 9 months ago |
| 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) |
— | 9 months ago |
| 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) |
— | 9 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) |
— | 9 months ago |
| Edit | Post #289161 |
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— | 9 months ago |