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modified 8 years ago

Help pt2

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04:07:30

I am still in the process of learning electronics and I can't for the life of me figure out why the capacitor discharges so slowly when I flip the switch onto the LED. I am trying to design my own circuit for an EMP. Although it's basic and there are millions of circuits on the internet, I want to design and build my own for the learning experience. So a solution, an explanation and even some tips would be greatly appreciated!

published 8 years ago

8 years ago

https://github.com/Upcycle-Electronics/AVR-Transistor-Tester

8 years ago

As usual, if it comes to measurements like current from a power supply forget what LeButch it talking. Hes losst in its bullshit equipment. Online aircoil calculators are quite good, but for some reaons he do not now how to use them? Internet is difficult for LeButch generation. Wie peinlich

8 years ago

Ignoring the helpless tries to offend me, here is the tester I have: https://www.ebay.de/i/like/201448541960?clk_rvr_id=1523977522866&vectorid=229487&lgeo=1&item=201448541960&rmvSB=true&ul_ref=http%253A%252F%252Frover.ebay.com%252Frover%252F1%252F707-53477-19255-0%252F1%253Fff3%253D2%2526toolid%253D10044%2526campid%253D5338268676%2526customid%253D08591d69-7a95-4b6b-bde8-4f8ca81f0e37%2526lgeo%253D1%2526vectorid%253D229487%2526item%253D201448541960%2526srcrot%253D707-53477-19255-0%2526rvr_id%253D1523977522866%2526rvr_ts%253D3f6ad7851630aa4816b3c4c1fff57812 It can mesure inductance precisely enough.

8 years ago

This is exactly this shit what Zorg mentioned. Its base on atmega and its mainly a component tester, when it comes to coils they fail quickly and I wont even expect they can measure 100uH +-50% error! Forget this bullshit and use an online calculator, holy shit.

8 years ago

It mesured my 10uH coils. The fact that it did not notice this EMP thing was a coil tells me that its inductance is smaller than 10uH.

8 years ago

Wrong conclusion. BTW, now its 10uH a few comments before it was 1uH. You do not even know what the corner inductance is this device fails. Maybe its not the inductivity, its the resistance which let it fail. So you dont know but you do your conclusion. Give us the length which is the only parameter missing and we calculate its inductivity without your bad logic.

8 years ago

I said it was less than 10uH. I dont know how you think again, but 1uH is less than 10uH. Also, YOU said it had more than 10uH what defently cant be true. So your initial thoughts that the inductance were too high is also wrong.

8 years ago

Look, those testers are good for quickly identifying components, except for inductors. You should buy or make a good LC meter. The internet is full of good designs. Choose one that has a proper zeroing function. This is what's missing from your component tester. Check out the software on gitgub

8 years ago

And we calculate with 20uH as long you do not give the length.

8 years ago

My point is that the tester did not notice that it is an inductor. Is that so hard to understand? I dont care if it does precise mesurements.

8 years ago

Whats your problem? You cry for a low low low inductivity, please low low low. I want it low low low. Why do you want it low low low? Low low low.

8 years ago

Its >20uH as Zorg and I believe. Over and out.

8 years ago

Why do you keep pretending it is over 20uH? It is not. I want it low because your point this EMP I thought of is not going to function because the inductance is too high. The problem is that you just cant say you were wrong, because you are this time.

8 years ago

Watch this AFTER you answered. Makes you realize your mistake better. https://youtu.be/WVLmc4CG94Y

7 years ago

physics laws are also valide for you and yours coils. Last call for the length in millimeter! EMP will come next. First you have to explain to us your amazon toy and how much energy over time you get out of it, if you know.

7 years ago

I see for his coil 12.8uH - thats why we better call emp-tiny. Its magnetic field is by far to low to destroy the caculator/multimeter. Here the link to an online calculator http://mustcalculate.com/electronics/singlelayeraircoil.php?n=13&d=50&du=mm&l=10&lu=mm

7 years ago

But his EMP works, even if it is not strong. Of cause, much energy gets lost in the spark, but it works. I guess it is totally enough for D264 who is "still in the process of learning electronics". If you read my comments closely, you already knew how long the coil was. "I have 15 turns of 0.2mm copper wire with a diameter of circa 5 cm" So you can calculate the length with 2*Pi*0.5*5*15 which equals 75Pi cm. If you dont get the calculation, ask.

7 years ago

We are not talking about the length of the wire if we talk about coils. Thats new to you, but you might learn that. Ask if you dont get it. I wont ask if it would be already given.

7 years ago

OMG!

7 years ago

If its tightly wound, which is likely with such fine wire, then this theoretical inductor has an value in excess of 20uH

7 years ago

Right Zorg, could be compact on 3mm or as long spiral over 20mm? Which will result in about +-10uH. Anyway, we are close enough even LeButch dont want to give as. At start it was 200nH. Later it gained to less then 1uH know its less then 10uH. I also believe it close to 20uH. And his formula, .... LOL PI*5*15 does make sense to me, but this 2*0.5 factor is strange. We dont need that anyway. Nobody asked for the length of the wire, its anyway known. Its the length of the coil!

7 years ago

Thanks for telling me. The coil is really softly wound, but there are multiple layers. The length I mesured was circa 0.5cm.

7 years ago

Now put all data to this online calculator and see what rubbish your transistor tester is. Maybe we can go on then.

7 years ago

How does such a tester mesure inductance? If I am right, it mesures the current flow rise per time unit. A higher inductance coil lets it rise slower than a low inductance one, right? Now it regonizes that there is a coil sticked in the testing holes, because current rises slower than usual. I have 10uH coils here (I bought them, thats why I know it), which the tester declares to be a coil. Now I have this as you say 20uH coil, which gets declared to be a resistor, even if its inductance is even higher than the one getting regonized. How can that be?

7 years ago

Check the software, everything else is speculation. Its open source, at least the original version.

7 years ago

I just know that it regonizes every coil perfectly exept this one. So its inductance is lower than 10uH.

7 years ago

You are toooo funny

7 years ago

I have a closed logic line of argumentation. What do you have?

7 years ago

You have what? You do not know what inside your tester, any argumentation fails.

7 years ago

Look, I have mesured 10 to 120uH coils with it and it worked totally fine. It would defently regonize a 20uH coil, even if it mesured -50%. This is simple logic, even you should understand.

7 years ago

Your logic is wrong, havn't I told you?

7 years ago

You are wrong with your logic and you are wrong saying I was wrong.

7 years ago

LeButch, you and we do not know what the internal stop or go criteria is for a coil. For this we have to have a close look into the software. A coil is a complex Z out of R and X. While X is frequency depended and R is fix. If R is high and X is low at some point the tester must decide its a R or a Z. You and We just dont know were your tester does has its thresholds. Normaly a coil in this range does have a ferrite core and much shorter wires then your coil. So tester probably does not expect such a high R for a coil around 20uH. Who knows?

7 years ago

Might be. But I will not answer to this topic anymore. I could not convince you even if I made a proof with a video.

7 years ago

You proofed nothing, and your logic is wrong.

7 years ago

See? Exactly what I said.

7 years ago

Your "might be." Is translated, "right, my conclusion is wrong!". Or what is, you do not understand?

7 years ago

Your English.

7 years ago

It mostly yours, you dont get? Funny

7 years ago

I know, I own more English than you, so English is mine more than yours.

7 years ago

And you always forget were we are, on EveryCircuit. But its clear why you always try to escape. Better you continue on other platforms with english and stop in electronics.

7 years ago

Those platforms would be good for you, there you can learn something. I am here to learn, you are here to satisfy your need of being better than others.

7 years ago

Im here to detect frauds and keep beginners safe from bad information. You remember "I m wrong,..."? Yes you are wrong in to many comments you made.

7 years ago

I can literally read your angryness, cause your comments make even less sence then. Cute.

7 years ago

You broke the logic of your argumentation with "might be."

7 years ago

I said that to make you shut up. Unfortunally it did not work...

7 years ago

No, you can use your template were you say "sorry, I was wrong again".

7 years ago

Exactly what I expected. I admit being wrong and you show yourself calmed and pleased. Now that noone talks about my mistake anymore you use it to tell me you would be better than me. Typical Hurz...

7 years ago

Its not who is "better", its just I see there is somebody talking BULLSHIT, and I try to tell "him" hes wrong, cause there is a community were 99% of users do not know whats right or wrong. You are one of this 99%. But I better stop to spend more effort in telling you whats wrong with your statements cause its waste of time till you stubborn get the point. Your rude nasty behaviour in the moment you see whats wrong is also not to nice, just to get after days of discussion to get for 2 days "sorry, i was wrong" is to much effort I have to spend. I declare this thread for finished, and please dont cry.

7 years ago

Where do you have these statistics from?

fancycontrollers

7 years ago

hurz this will calm you down: https://www.medicinenet.com/tourette_syndrome/article.htm#what_is_tourette_syndrome

7 years ago

How long does it take you to waste your time around all EC entries and spam on foreign circuits? I would better stop that.

7 years ago

Then PLEASE stop that, Hurz.

7 years ago

LeBitch shutup,nobody called you or any other troll

7 years ago

Why? Dont waste your time answering me.

7 years ago

Nobody called you.

7 years ago

Exept my girlfriend and many other friends of mine. Do you know what "friend" means?

7 years ago

Wie lange willst du den schrott noch von dir geben? Glaubst du das ändert irgendwas an dieser Welt, oder ist für dich hilfreich. Lese ein Buch oder lerne was geh spazieren. Aber mach was vernünftiges mit deinen Pickeln

7 years ago

Du hast gesagt, niemand würde mich anrufen. Nicht jeder ist so einsam wie du. Außerdem, was kann man sinnvolles mit Pickeln machen?

7 years ago

Was du immer machst, ausdrücken und essen

7 years ago

Ew, wie kommst du darauf dass das irgendjemand machen würde? Oh, weil du es machst, okay... Immerhin kommen meine Pickel durch mein Alter, deine kommen durch deine Fettleibigkeit.

7 years ago

Dir ist wirklich zu langweilig

7 years ago

Btw, du weisst nichts über mich

7 years ago

Jetzt schon. Und es ist ekelhaft. Wenn du sowas schon machst, behalt es für dich.

7 years ago

Du bist perverse

7 years ago

Wieso? Wer hat denn damit angefangen?!

7 years ago

Ich sagte doch, NICHT HEULEN, du bist sowas von einem Weichei, unglaublich

7 years ago

Das ergibt so gar keinen Sinn

7 years ago

Mami mami er hat angefangen! BÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄHHHHHH

7 years ago

"Herr Richter, ich habe nur aus Notwehr gehandelt." Richter Hurz: "Mami mami er hat angefangen."

7 years ago

Ich weiß nicht wieso sowas immer als kindisch dargestellt wird. Es ist wichtig, wer angefangen hat und in diesem Falle warst du das. Zu sagen ich sei pervers, da ich über deinen Kommentar rede ist kontrovers. Ich weiß, es kommt eh ne Beleidigung zurück, daher nimm es dir einfach zu Herzen und denk wenigstens minimal nach.

7 years ago

Mami mami er hat angefangen! BÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄHHHHHH

7 years ago

Du kleines Arschloch hast es erfasst, wenn es denn so wichtig ist für Dich, dann überlege endlich mal wer von uns beiden das Unverschämte beleidigende Arschloch war? Erinnerst dich oder steht dir die Pupertät im Wege objektive Entscheidungen zu treffen?

7 years ago

Wann habe ich dich direkt beleidigt? Damit meine ich eine stumpfe Beleidigung, also das das du immer tust. Bitte mit Link zu dem Schaltkreis.

7 years ago

Alzheimer? Muss ich das einmal pro Woche beweisen? Das erste mal war hier und seitdem schlage ich nur noch zurück, denn auch ich lasse mir von einem Rotzlöffel wie dir nicht alles gefallen "So stop being a dick and inform yourself about things before criticising it!" http://everycircuit.com/circuit/5716294093766656

7 years ago

Wow. Das ist natürlich eine krasse Beleidigung. Das macht das "Wichser" "Arschloch" "Rotzlöffel" "Pickelgesicht" und den Rest komplett gerechtfertigt.

7 years ago

Naja, das war ja auch erst der Anfang wie du sicher erinnerst, oder hast du immer noch blackout.

7 years ago

Na dann leg mal los, wenn das erst der Anfang war.

7 years ago

Ich werde deine Unverschämtheiten hier wiederholen damit du dir darauf einen wichsen kannst? Vollpfosten.

7 years ago

Das ist keine Frage. Wie denn auch sei, ich habe eine Freundin. Ich muss nicht wichsen.

7 years ago

"Wie dem auch sei"

7 years ago

Wenn du etwas in Anführungszeichen setzt, zitierst du jemanden. In diesem Fall hast du falsch zitiert, da du nicht gekennzeichnet hast, dass du etwas verändert hast. Richtig wäre "Wie de[m] auch sei, ...".

7 years ago

Eckige Klammmern geben als Regular Expression einen optionale Menge an Zeichen an. Dabei hast Du vergessen das dieses Zeichen mindestens einmal vorhanden sein muss, aber auch nicht beliebig oft. So ist es mit [m] schlicht falsch! Lerne Regular Expressions richtig, und wir sprechen dann nochmal in ein paar Jahren.

7 years ago

Are you sure about that https://www.google.de/search?client=ms-android-samsung&ei=9KkLW7n2DYPUkwXJ5LHgDA&q=eckige+klammern+zitieren&oq=eckige+k&gs_l=mobile-gws-wiz-serp.1.3.0l3j0i67j0.2728.5894..8805...2....114.828.2j6....2..0....1.......3..35i39j0i131.Hc985IX2Bss%3D

7 years ago

Als Informatiker bin ich mir mit den RegEx sehr sicher. Das Wischi Waschi was du da als Referenz verkaufen möchtest, sagt man "kann" und ist wachsweich.

7 years ago

Ach so. Das Internet liegt natürlich auch falsch, weil du ja immer richtig liegst. Hab ich vergessen.

7 years ago

Oh das ist neu für dich? Das Internet enthält mehr scheiße als korrekte Information. Erzähl du mir mal was vom Internet. Der Blinde redet von Farbe, LOL irgenwie hast das mit den RegEx überhaupt nicht kapiert. Kannst wenigstens mal auf Wiki nachsehen was das eigentlich ist, aber obacht, auch Wiki hat viele falsche Artikel, nicht das du alles gleich glaubst in deiner kindlichen Naivität.

7 years ago

Ich weiß was reguläre Ausdrücke sind, ich hab übermorgen meine Info Abi Klausur. Ich frage mich nur was das mit einem Zitat zu tun hat. Und guess what, in der Mathematik werden auch eckige Klammern verwendet. Ich denke ein Symbol kann mehrere Anwendungen haben.

7 years ago

Da kannst mal sehen und staunen

7 years ago

Eigentlich nicht. Mir war klar dass du nur wieder irgendwelche Fachbegriffe in den Raum werfen wolltest um dich besser zu fühlen.

7 years ago

Und mir ist schon lange klar das du nur ein Troll bist. Drum meine endlos blöden Antworten auf deine noch dümmeren Kommentare ohne Sinn und Verstand.

7 years ago

Immerhin merkst du wie blöd du antwortest.

7 years ago

Komm weiter, dir ist doch sooooo langweilig. Blöd antworten gehört zur Fuck-up Strategie dazu. Dein Interesse in Elektronik ist halt egozentrisch auf dich selbst fixiert, damit lässt sich nicht arbeiten. Dabei kommt nur Müll heraus wenn du probierst logische Schlüsse dickköpfig zu vertreten ohne Ahnung was eine Spule wirklich ist. Eine Spule ist nicht nur Induktivität, sie ist weitaus mehr was du aber nicht sehen/verstehen willst. Also machen wir weiter mit fuckup oder willst was lernen?

7 years ago

Ich hab dir oft genug angeboten mit dem Quatsch auf zu hören. Da kamen dann so Antworten wie "Ich hab keine Lust dir was zu beantworten", oder es kam überhaupt keine. Du kannst zwar kein Spanisch, aber du weißt sicher was lecko mio bedeutet.

7 years ago

Und wieder einmal zeigt sich das pupertäre pickelige kleine Arschloch.

7 years ago

Du verhältst dich noch pubertärer als ich. Ich würd mir da Sorgen machen...

7 years ago

Hab gerade erfahren dass ich ne glatte 1 in Info bekommen hab. Ich kann also nicht so schlecht sein.

7 years ago

Hast den Metamat hinbekommen, schön.

7 years ago

Danke

6 years ago

I think it would have to do with the led would act as a resistor . So well the cap would only push as much as it can threw the resistance. I think I am also new and trying to learn as much as I can

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