User talk:Em3rgent0rdr

Welcome!

Hi Em3rgent0rdr! I noticed your contributions to Delta-sigma modulation and wanted to welcome you to the Wikipedia community. I hope you like it here and decide to stay.

As you get started, you may find this short tutorial helpful:

Learn more about editing

Alternatively, the contributing to Wikipedia page covers the same topics.

If you have any questions, we have a friendly space where experienced editors can help you here:

Get help at the Teahouse

If you are not sure where to help out, you can find a task here:

Volunteer at the Task Center

Please remember to sign your messages on talk pages by typing four tildes (~~~~); this will automatically insert your username and the date.

Happy editing! ~Kvng (talk) 14:37, 6 November 2021 (UTC)

April 2022

This is your only warning; if you add defamatory content to Wikipedia again, as you did at Tom Woods, you may be blocked from editing without further notice. ― Tartan357 ^Talk 21:59, 8 April 2022 (UTC)

Double sentence spacing

Just to let you know, I find the removal of double sentence spacing, as you did at Ground loop (electricity)‎, extremely annoying. There is no benefit to removing them and reverting is difficult without collateral damage if they are mixed in with other edits. See User:Spinningspark/Two spaces at the end of sentences. SpinningSpark 07:53, 18 May 2022 (UTC)

@Spinningspark sorry I won't do that any more. Em3rgent0rdr (talk) 07:56, 18 May 2022 (UTC)

SI unit names

There were two problems with this edit. First of all, SI unit names are never capitalised when written out in full. The abbreviations are capitalised when the unit is named after someone, but not when spelled in full. See International System of Units#General rules. By and large, the same rule applies to other systems of units like the old imperial system, although there are exceptions.

The other issue is that you removed the non-breaking space between the number and the unit. I assume this happened because you are using Visual Editor rather than the source editor and couldn't see it. I can't help you with how to do this in Visual Editor, I'm not sure that it can even handle html special characters at all. However, there is an alternative, the {{nowrap}} template which VisEd should handle and in my opinion is a preferable method anyway. This kind of thing is one of the many reasons I don't use Visual Editor. It leaves behind all kinds of formatting nonsense and redundant code which is obvious in source editing but you can't see it in the rendered page. SpinningSpark 06:49, 20 May 2022 (UTC)

@Spinningspark I'm sorry, thank you for correcting me. I will try to avoid such edits. Em3rgent0rdr (talk) 06:51, 20 May 2022 (UTC)

Don't worry about it. SI capitalisation is something people commonly get wrong. You soon get to learn the rules once you start editing Wikipedia because there's lots of people here who will correct it. SpinningSpark 06:57, 20 May 2022 (UTC)

Disambiguation link notification for November 24

Hi. Thank you for your recent edits. An automated process has detected that when you recently edited Panama Canal, you added a link pointing to the disambiguation page New Granada. Such links are usually incorrect, since a disambiguation page is merely a list of unrelated topics with similar titles. (Read the FAQ • Join us at the DPL WikiProject.)

It's OK to remove this message. Also, to stop receiving these messages, follow these opt-out instructions. Thanks, DPL bot (talk) 06:00, 24 November 2022 (UTC)

ArbCom 2022 Elections voter message

Hello! Voting in the 2022 Arbitration Committee elections is now open until 23:59 (UTC) on Monday, 12 December 2022. All eligible users are allowed to vote. Users with alternate accounts may only vote once.

The Arbitration Committee is the panel of editors responsible for conducting the Wikipedia arbitration process. It has the authority to impose binding solutions to disputes between editors, primarily for serious conduct disputes the community has been unable to resolve. This includes the authority to impose site bans, topic bans, editing restrictions, and other measures needed to maintain our editing environment. The arbitration policy describes the Committee's roles and responsibilities in greater detail.

If you wish to participate in the 2022 election, please review the candidates and submit your choices on the voting page. If you no longer wish to receive these messages, you may add {{NoACEMM}} to your user talk page. MediaWiki message delivery (talk) 01:12, 29 November 2022 (UTC)

Wave Packet

Thanks for your edits on Wave packet!

When making major changes consider opening a topic on the corresponding Talk page to add context that may not make sense in the edit Summary. I will cut a bunch of incorrect stuff from the Significance in Quantum mechanic section, as I mentioned here:Talk:Wave_packet#Dubious,_unreferenced_claim Johnjbarton (talk) 18:52, 22 June 2023 (UTC)

yes, I saw your comment...please go ahead and try to clean up/reorganize that history as you like.

My understanding (I don't know the full history) is that the concept of wave packet and its propagation was understood long before quantum mechanics, and so quantum mechanics is just one application...for instance Group Velocity#History says "The idea of a group velocity distinct from a wave's phase velocity was first proposed by W.R. Hamilton in 1839, and the first full treatment was by Rayleigh in his "Theory of Sound" in 1877." Em3rgent0rdr (talk) 18:59, 22 June 2023 (UTC)

Thanks. I read the first few pages of Brillouin and updated the history to match.

As far as I can tell packets per see only came to be interesting with QM and then later with laser technology they became pervasive. But Born and Wolf say zero about packets so think it all comes a bit later than we imagined. Johnjbarton (talk) 01:32, 23 June 2023 (UTC)

CS1 error on Delta-sigma modulation

Hello, I'm Qwerfjkl (bot). I have automatically detected that this edit performed by you, on the page Delta-sigma modulation, may have introduced referencing errors. They are as follows:

• A "bare URL and missing title" error. References show this error when they do not have a title. Please edit the article to add the appropriate title parameter to the reference. (Fix | Ask for help)

Please check this page and fix the errors highlighted. If you think this is a false positive, you can report it to my operator. Thanks, Qwerfjkl (bot) (talk) 01:52, 29 June 2023 (UTC)

Delta-sigma stuff

Thanks for working on Delta-sigma modulation. It has been a bit of disaster for a very long time. The DAC section you did some work on is complete nonsense still. The concept of "pulse frequency" there really stands for "pulse density", I presume. The term pulse-density modulation (PDM) seems to be the modern concept, used in both ADC and DAC. I got some books on this, with the hope of writing something sourced, but haven't gotten around to it. Maybe some day... Dicklyon (talk) 06:05, 29 June 2023 (UTC)

haha, yes that article needs quite some work, thanks.

Assuming the digital signal is simply the 1-bit output of a delta-sigma converter, then yes I have seen it referred to as "Pulse Density Modulation" in datasheets (for instance for "PDM MEMS microphones"). And in that case, the digital-to-analog conversion is *really* simple: just any low-pass filter. I just added an edit basically saying that.

I'll have to take a closer look at the article later though. I'm always wary of making edits because I don't know if it is confusing because I don't understand something important or if it is because the article is complete nonsense. Em3rgent0rdr (talk) 06:49, 29 June 2023 (UTC)

You can see our long history of disagreements at Talk:Delta-sigma modulation, but not much follow-through on improvements. A lot of it is still incomprehensible, over-complicated, or wrong, I think. Dicklyon (talk) 17:55, 29 June 2023 (UTC)

Thanks for your more good work on this. But I think your color-on-black figures look pretty awful in the context of WP where dark-on-white is more normal. Can you invert or otherwise re-style them? Dicklyon (talk) 06:19, 2 July 2023 (UTC)

OK, my apologies. The simulator I used (circuitjs) had black background and so did my browser, but tomorrow I will re-edit them, maybe setting the background as transparent and try to tweak the colors scheme to work better with white background. I'm going to take a break from editing it for the next 10 hours or so. Em3rgent0rdr (talk) 06:25, 2 July 2023 (UTC)

Wave packet

I restored content to the lead of wave packet that you had removed pertaining to quantum mechanics. 96.227.223.203 (talk) 15:18, 13 August 2023 (UTC)

Disambiguation link notification for August 23

An automated process has detected that when you recently edited 7400-series integrated circuits, you added a link pointing to the disambiguation page High-Z.

(Opt-out instructions.) --DPL bot (talk) 06:03, 23 August 2023 (UTC)

fixed. Em3rgent0rdr (talk) 06:16, 23 August 2023 (UTC)

Disambiguation link notification for September 7

An automated process has detected that when you recently edited Cascaded integrator–comb filter, you added a link pointing to the disambiguation page DB.

(Opt-out instructions.) --DPL bot (talk) 05:57, 7 September 2023 (UTC)

ESR

Greetings. You can have a series resistance and a shunt resistance in the equivalent circuit, but you cannot ESR and any other resisters in the equivalent circuit, because the other resisters would represent additional loss. That is because ESR is meant to account for all losses at a given frequency. As such, any additional resisters would add loss already accounted for by ESR.

You can also draw a circuit with an ESC (equivalent shunt conductance) with ESC accounting for all the losses at a given frequency. At a single frequency, you cannot tell the difference between an ESR circuit and an ESC circuit from their terminal behavior.

Folks use ESR because over useful frequency ranges, the value shows low frequency dependence. That is, ESR behaves a lot like a plain old resister.

Bottom line, if you are going to have an equivalent circuit with a series resister and a shunt resister, don't label the series resister as ESR. Just call it SR. Constant314 (talk) 00:07, 15 September 2023 (UTC)

@Constant314 ok, good point. I had used that image because it was what I could find already uploaded to Wikimedia commons and I was not familiar enough with the terms...but looks like I will have to make a new image. Em3rgent0rdr (talk) 00:13, 15 September 2023 (UTC)

That would be for the best. Constant314 (talk) 00:18, 15 September 2023 (UTC)

I ended up drawing this model, since is same as the ieee article I citated which calls them "Rs" and "Rp" except I spelled out "series" and "parallel":

The inductor was just called "L" in that ieee article, but I debated about changing that L to L_{equivalent series} or L_ES but I guess it doesn't matter.

I did do skimming on the interwebs and it seems some do put the parallel resistance in parallel with a LRC, and everyone seems to give them slightly different names, but I decided to stick with how that ieee article laid it out. Em3rgent0rdr (talk) 01:46, 15 September 2023 (UTC)

The advantage of two resisters is that the frequency dependence of the individual resisters is less. Except at very low frequency, almost all the frequency dependent loss is dielectric loss. A good model for that is a shunt conductance $G_{dielectric}=G_{dc}+\omega C\tan(\delta _{\omega })$ where $\tan(\delta _{\omega })$ is the loss tangent which varies slowly with respect to frequency. The cutover frequency G/C is in the 100 μHz range for good capacitors. If you ignore G_dc then you can absorb the rest into C by making C complex. Constant314 (talk) 18:16, 15 September 2023 (UTC)

ok. I don't think I can add those details to this article's section without loosing the audience.

Another "frequency dependence" aspect to resistance I was just reading about is that what I've labeled R_series also experiences the skin-effect phenomenon at high frequencies. Em3rgent0rdr (talk) 18:49, 15 September 2023 (UTC)

Yes it does, but I think that is lost in the dielectric loss. I only mention it to help you avoid making inaccurate statements about the frequency dependence of the parasitic components. Constant314 (talk) 19:04, 15 September 2023 (UTC)

I did do a naming adjustment to use $R_{\text{lead}}$ and $G_{\text{dielectric}}$ instead of $R_{\text{series}}$ and $R_{\text{parallel}}$ to more closely express the components those resistances are representing. The inductance I'm always just calling ESL in both models. And did some other tweaks to wording. I'm going to lay off from editing that page now if you want to correct any errors I inadvertently introduced. Em3rgent0rdr (talk) 21:07, 15 September 2023 (UTC)

I am sure that you are doing a good job. Esr is just one of my triggers. Constant314 (talk) 23:22, 15 September 2023 (UTC)

One of the great things about ESR is that if you know that and the current, it is easy to calculate the lower loss in the capacitor. There are many situations where you can easily determine the current. Constant314 (talk) 01:02, 16 September 2023 (UTC)

Capacitor Q

$Q_{capacitor}\leq {\frac {1}{\text{loss tangent}}}$ Constant314 (talk) 01:01, 16 September 2023 (UTC)

ok, I had to read that article but I think I get that. For the Capacitor's article on Q factor, I'm now just saying the Q factor equation is "for the simplified equivalent series resistance model" and I've just added a "see also" to Dielectric loss#Discrete circuit perspective. Em3rgent0rdr (talk) 02:20, 16 September 2023 (UTC)

October 2023

Hello, I'm BBQboffin. I noticed that you made an edit concerning content related to a living (or recently deceased) person on Lindsay Graham, but you didn't support your changes with a citation to a reliable source. It's been removed and archived in the page history for now. Wikipedia has a very strict policy concerning how we write about living people, so please help us keep such articles accurate and clear. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thank you! BBQboffin (talk) 05:01, 14 October 2023 (UTC)

Ok, thanks for rewording it. For the record, he did specifically say the quoted words in his Tweet. But I will learn to do better. Em3rgent0rdr (talk) 05:27, 14 October 2023 (UTC)

Introduction to contentious topics

You have recently edited a page related to post-1992 politics of the United States and closely related people, a topic designated as contentious. This standard message is designed as an introduction to contentious topics and does not imply that there are any issues with your editing.

A special set of rules applies to certain topic areas, which are referred to as contentious topics. These are specially designated topics that tend to attract more persistent disruptive editing than the rest of the project and have been designated as contentious topics by the Arbitration Committee. When editing a contentious topic, Wikipedia’s norms and policies are more strictly enforced, and Wikipedia administrators have special powers in order to reduce disruption to the project.

Within contentious topics, editors should edit carefully and constructively, refrain from disrupting the encyclopedia, and:

• adhere to the purposes of Wikipedia;
• comply with all applicable policies and guidelines;
• follow editorial and behavioural best practice;
• comply with any page restrictions in force within the area of conflict; and
• refrain from gaming the system.

Editors are advised to err on the side of caution if unsure whether making a particular edit is consistent with these expectations. If you have any questions about contentious topics procedures you may ask them at the arbitration clerks' noticeboard or you may learn more about this contentious topic here. You may also choose to note which contentious topics you know about by using the {{Ctopics/aware}} template.

BBQboffin (talk) 05:13, 14 October 2023 (UTC)

Disambiguation link notification for October 16

An automated process has detected that when you recently edited Lindsey Graham, you added a link pointing to the disambiguation page The Hill.

(Opt-out instructions.) --DPL bot (talk) 06:02, 16 October 2023 (UTC)

Fixed. Thank you, Bot. Em3rgent0rdr (talk) 06:20, 16 October 2023 (UTC)

ArbCom 2023 Elections voter message

Hello! Voting in the 2023 Arbitration Committee elections is now open until 23:59 (UTC) on Monday, 11 December 2023. All eligible users are allowed to vote. Users with alternate accounts may only vote once.

The Arbitration Committee is the panel of editors responsible for conducting the Wikipedia arbitration process. It has the authority to impose binding solutions to disputes between editors, primarily for serious conduct disputes the community has been unable to resolve. This includes the authority to impose site bans, topic bans, editing restrictions, and other measures needed to maintain our editing environment. The arbitration policy describes the Committee's roles and responsibilities in greater detail.

If you wish to participate in the 2023 election, please review the candidates and submit your choices on the voting page. If you no longer wish to receive these messages, you may add {{NoACEMM}} to your user talk page. MediaWiki message delivery (talk) 00:39, 28 November 2023 (UTC)

Phone connector (audio) edits

Thanks for your improvements. I have a couple quibbles. You've added some potentially unnecessary bold and slashes; Please have a look at MOS:BOLD and MOS:SLASH. If tempted to add some bullets, be aware that WP:PROSE is generally preferred. Happy editing! ~Kvng (talk) 00:11, 13 December 2023 (UTC)

Disambiguation link notification for December 15

An automated process has detected that you recently added links to disambiguation pages.

MIDI

added links pointing to PNP, NPN, PMOS and NMOS

(Opt-out instructions.) --DPL bot (talk) 06:04, 15 December 2023 (UTC)

fixed. Em3rgent0rdr (talk) 06:26, 15 December 2023 (UTC)

Hall Effect Sensor

Thanks for all your great work on this page! PianoDan (talk) 15:41, 31 December 2023 (UTC)

Thanks! Em3rgent0rdr (talk) 16:15, 31 December 2023 (UTC)

Solve the equation if it is so "easy"

https://en.wikipedia.org/wiki/Sine_wave

https://wikimedia.org/api/rest_v1/media/math/render/svg/11f7f3ec4cdc5ad694b390c5adfcdc0a858f1457

This is not able to be solved into a sine wave output based on time, therefore it is not a proper equation as it does not give a "Seconds" output out. Slingring (talk) 23:32, 4 January 2024 (UTC)

It's not meant to be solved. It is a standard form for representing a sinusoid by its peak amplitude, frequency, and phase. Em3rgent0rdr (talk) 03:17, 5 January 2024 (UTC)

Discovery doctrine

Hello there

I reverted your contribution to this article regarding a statement that the discovery doctrine was incrporated into US law by the McIntosh decision. it is redundant because no one is disputing that the decision incorporated the doctrine into US law and the article already states this several times. Also a community newspaper is not really a very reliable source in legal matters. There has been tens of thousands of scholarly articles about the mcIntosh decision and there is no real reason to highlight one that doesn't say anything new and isn't in a highly reliable source.

Happy to discuss. Aemilius Adolphin (talk) 23:34, 25 March 2024 (UTC)

ok, understood. Em3rgent0rdr (talk) 02:51, 26 March 2024 (UTC)

Uncorrelated noise

Dear colleague, more sources are definitely needed in Uncorrelated noise. I have also changed the text significantly, so please review and feel free to undo my changes. Thank you in advance! Викидим (talk) 06:35, 8 April 2024 (UTC)