Activity for coquelicotâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Comment | Post #277090 |
Sorry for answering you late: It has been a very long time I have not surfed on this site, as I was very disappointed by the ways of the mod as a mod. I have to correct my mistakes though.
You are entirely right: I only thought about the problem as a current source problem, neglecting the obviou... (more) |
— | 8 months ago |
| Comment | Post #282151 |
You may be right. Probably a wrong choice of the example. (more) |
— | 8 months ago |
| Comment | Post #285817 |
Well, for me "100s of MHz" is already called "MHz range".
The antenna I am dealing with in the thread are usually operated well in the GHz range.
Also, pay attention that 1ns rise time gives something like 300-500MHz frequency content if I'm not wrong (use a convertor to obtain the precise value)... (more) |
— | 8 months ago |
| Comment | Post #285921 |
@Olin. After your action, who would want to leave any comment after downvoting? You create a Meta to make downvotes public, and at the same time act with an unmatched virulence against a person who has duly justified his downvote. You have used incorrectly the upvoting mechanism to fight my downvote,... (more) |
— | about 2 years ago |
| Comment | Post #284955 |
yeah. In classical electromagnetism, the propagation of the energy of an EM wave is materialized by the so-called "Poynting vector" (@Engin.. you can google it for more information). (more) |
— | about 2 years ago |
| Comment | Post #285928 |
I just would like to understand:
>"wouldn't it be a better policy to award upvotes to people who point out errors. That would encourage folk to want to help people fix crappy answers without the discontent that downvotes bring."
Do you really believe that codidact will code this feature and aban... (more) |
— | about 2 years ago |
| Comment | Post #285861 |
@a concern citizen. No need, I think I have the artifact: the line in the experiment has obviously a non negligible inductance. So, when the switch closes, the inductance of the line creates a relatively slow linearly increasing current, which can induce, indeed, a plateau by capacitive coupling in t... (more) |
— | about 2 years ago |
| Comment | Post #285861 |
@a concern citizen. I meant, do you have some insight about how this apparent paradox could happen, not the alleged artifact. (more) |
— | about 2 years ago |
| Comment | Post #285921 |
Hello Elliot. There is an important discussion in Meta about making downvotes public. Since you are here, I'm taking the unusual step of letting you know that. Of course, if you participate to the debate, feel free to downvote my opinion and express a different opinion. (more) |
— | about 2 years ago |
| Comment | Post #285921 |
@Andy, take it easy ;-) (more) |
— | about 2 years ago |
| Comment | Post #285921 |
Andy, the above comment was addressed to Kranulis. (more) |
— | about 2 years ago |
| Comment | Post #285861 |
@a concerned citizen. Thanks for the feedback, really interesting again. I suspect your alleged SUSTAINED plateau is an artifact of the experiment. Of course, everything is continuous in classical physics, but the meaning of what I said is that there should be a small peak, then the current should de... (more) |
— | about 2 years ago |
| Comment | Post #285861 |
OK. I will update my answer. (more) |
— | about 2 years ago |
| Comment | Post #285889 |
and perhaps ... because this as not been tried ever. (more) |
— | about 2 years ago |
| Comment | Post #285889 |
Or... someone has to show the way and to be a pilot for the other categories. (more) |
— | about 2 years ago |
| Comment | Post #285928 |
Downvoted too. See my most recent post here for the reasons and insight. (more) |
— | about 2 years ago |
| Comment | Post #285921 |
Hey Kranulis. How are you? "MrMandarin" ... isn't it a funny idea for an avatar? (more) |
— | about 2 years ago |
| Comment | Post #285921 |
Wow! what a support to Kranulis! I would like to have enjoyed the same support when I was brutally downvoted, without any reason (and without comment). Curiously Andy, you were not here, and even more curiously, Olin, you were much more reserved in defending me. I'm jealous, really.
Also, as you ca... (more) |
— | about 2 years ago |
| Comment | Post #285928 |
Wha... SE has not counter measures against trolls et al.? (more) |
— | about 2 years ago |
| Comment | Post #285928 |
I should also add that your vision is perhaps good, but utopic. Trolls, children, vexed persons etc. exist and use to destroy sites if no counter measures are taken. (more) |
— | about 2 years ago |
| Comment | Post #285928 |
I agree with you in principle Andy, and that's why I have make very few downvotes up to now. Nevertheless there are persons that won't do anything after the comments of some other they dislike or so. When you face those persons, there is no time to waste, and a fortiori whenever you know those pers... (more) |
— | about 2 years ago |
| Comment | Post #285921 |
@Andy. Not at all, as I have specified in my comment. I think this debate belongs to Meta though. (more) |
— | about 2 years ago |
| Comment | Post #285921 |
Of course, since they already know this matter. My comment has to be understood as "if they were not already knowing this subject". Anyway, that's not the point. The question is of elementary level, and as such, should be answered in a more detailed way. My opinion is that most newcomers in electron... (more) |
— | about 2 years ago |
| Comment | Post #285907 |
I wrote "SOME downvotes I got". If you cite me, please, be of good faith. (more) |
— | about 2 years ago |
| Comment | Post #285921 |
I downvoted this answer because the first half "One reason" -- "3.3V logic level" is hardly understandable for reasonably competent engineers, and certainly sibylline for most students of the level of this question. This answer may be updated by adding schematics or clearer explanations, in which cas... (more) |
— | about 2 years ago |
| Comment | Post #285737 |
In place of asking Lundin if he downvoted you and complaining in your answer, why did you not come to participate to the debate about downvotes in Meta? after all, you are the trigger of this thread. Where are you when your are needed? (more) |
— | about 2 years ago |
| Comment | Post #285913 |
I agree with Olin. That's incredible how hard it is to try a new approach. Really, your computer will not explode. (more) |
— | about 2 years ago |
| Comment | Post #285913 |
To make downvotes open will not create such discussions: the mods need only to step in when the discussion become ridiculous and to close it.
On the other hand, openness of the critic will highly improve the quality of the content. Also, mods should remove downvotes ridiculously justified, otherwis... (more) |
— | about 2 years ago |
| Comment | Post #285907 |
Completely wrong, I have personally been the target of the troll (I think there is only one currently). Of course, you can discuss 100 years if this is a troll or a regular voter, but the fact is that no one could explain reasonably some downvotes I got. (more) |
— | about 2 years ago |
| Comment | Post #285861 |
I liked the part at 17:30, where he explains how the capacitive coupling between the wires produces current. Interesting. Did you mean this video contradict something in my answer? I don't see, on the contrary. (more) |
— | about 2 years ago |
| Comment | Post #285871 |
So, the restricted number of papers is what is preventing you to agree with me, not the idea itself.
While your argument makes sense, I think it's not the better choice.
Nothing should prevent a good organization of this site, even though we have relatively few material. In contrast to "Photogra... (more) |
— | about 2 years ago |
| Comment | Post #285864 |
@Olin. No, the bullet list are not only the examples. The two first bullets are from the "definition" section. I've listed all what I saw there, just including the examples as they are supposed to provide a more concrete view. If there is such thing a "broader" definition, it is probably more an info... (more) |
— | about 2 years ago |
| Comment | Post #285858 |
Hello Monica. Your suggestion is interesting, and I have personally no objection to call this category resources in place of insights (I should even add that I like this suggestion). This would indeed allow even broader articles to be added. Anyway, I think that's only a cosmetic detail, not the main... (more) |
— | about 2 years ago |
| Comment | Post #285858 |
I think your suggestion is of the same order as that of Monica in the previous thread: to change the name of the current category, in order to lower and extend the expectations (actually Monica suggested to change the name of the new proposed category). As I wrote in the answer to Olin, the level of ... (more) |
— | about 2 years ago |
| Comment | Post #285817 |
OK. Anyway, I think a small choke to ground is the normal way to handle these problems, as I wrote in my answer. (more) |
— | over 2 years ago |
| Comment | Post #285721 |
Hello Lundin. I think it would help if you can specify what is the general configuration of your system. Is your antenna connected by a coax to a microstrip circuit including, e.g. the pi filter and C3, which is itself connected to an RF switch via some coax? something else? I'm also surprised that y... (more) |
— | over 2 years ago |
| Comment | Post #285737 |
These downvotes from trolls are a real pain in this site. Disgusting. I also agree with transparency regarding them, but even so, it would suffice to disable the downvoting for persons whose score is less than 100 to block most of the imposters. I don't understand why this simple measure has still n... (more) |
— | over 2 years ago |
| Comment | Post #282265 |
@Olin. Your last interventions are not only extremely welcome for the atmosphere here, but seem in fact necessary to avoid the spoilage of this site by trolls or like (not related to Carloc). (more) |
— | almost 3 years ago |
| Comment | Post #282288 |
@Leventov. Hi, I assume (hope) you are the person that have downvoted the answer. Could you please add a small reason in comments ? (more) |
— | almost 3 years ago |
| Comment | Post #282265 |
@Carloc. >>once more just wanted to talk.
On the contrary, I was hostile because you didn't come to talk, but only come to downvote this answer. That's your prerogative, but really, there are better ways to do it. I am also tired because there is a troll with several accounts in that site who ofte... (more) |
— | almost 3 years ago |
| Comment | Post #282265 |
@Carloc. I've edited my previous comment to make it less aggressive, as you seem to be honest. Regarding your last comment, see my new edits inside my answer. (more) |
— | almost 3 years ago |
| Comment | Post #282265 |
@Carloc. So, you address the last part of my comment, but you consciously avoid to address the first part that proved there were no mistakes or mismatches in the question of the OP. (more) |
— | almost 3 years ago |
| Comment | Post #282265 |
But I've never seen that a person who answers should be punished because someone dislikes the question, especially after the question itself has not be downvoted !!! Really really strange at the least! (more) |
— | almost 3 years ago |
| Comment | Post #282265 |
@carloc. The OP had clearly indicated from the beginning that R1 = 1 Ohm (see the schematic, and that's also clear from the second equality at the beginning of the question). Similarly, the OP had clearly indicated that the frequency is 1 Hz (schematic again). Even without the schematic, this normali... (more) |
— | almost 3 years ago |
| Comment | Post #282139 |
From this answer, I now better understand the question, and in particular that the OP has a micro-controller (or something like that) already available to do many operations. I will update remove some aspects in my answer in accordance. (more) |
— | almost 3 years ago |
| Comment | Post #282154 |
Hi, looks like it's more related to physics or chemistry than to EE. (more) |
— | almost 3 years ago |
| Comment | Post #281971 |
Spectrum analyser + tracking generator sounds more complicated than a (vector) network analyser, which is especially designed for this task (and other). Note that there are now cheap so called "nano-vna" on the market that give decent results for antennas up to 1GHz.
(more) |
— | almost 3 years ago |
| Comment | Post #282127 |
I'm not sure I understand why you are trying to do. Is the problem the following? : the contactor needs 12 V, 1.5A to switch, but after it has switched, it needs much less current because of hysteresis. So you are trying to design a power saving circuit, using the coil of the contactor as part of a 5... (more) |
— | almost 3 years ago |
| Comment | Post #281540 |
@Joel Reyes Noche. An excellent question! I would have give you a +1 if I could :-) (more) |
— | about 3 years ago |
| Comment | Post #281549 |
@Olin. Fig 32 ("basic connections suitable for many applications") and fig. 35 for example indicate to leave pin 3 and 5 not connected. It is evident that if I don't show a pin in a schematic, that means it is not connected, as is common in electronics. In a QA site, the criterion for "wasting your ... (more) |
— | about 3 years ago |