I modified an old phone charger and made it output 30 volts then, I added a voltmeter screen to use it as a tester for measuring any LED or zener diode less than 30 volts.
Пікірлер: 788
@Inventor_AW11 ай бұрын
Warning: ⚠ ⚠ ⚠ have fun but always remember to be Safe, anything you try is at your own Risk , thank you
@aivonabeywardana421311 ай бұрын
Can you use any phone charger on the table?
@Greggpascoe11 ай бұрын
@@aivonabeywardana4213 6:44 6:44 Thank you. I have every charger and transformer that ever existed at every voltage. Higher voltage will really help my issues?
@Inventor_AW11 ай бұрын
@@gaswirt ❤❤❤
@chrisengland552311 ай бұрын
Hmm, a neat little circuit, but I worry about folk who don't know what they're doing messing with mains voltages. At the very least, it should be encased in something to prevent straying fingers touching the 'wrong end'.
@krapkathoru357711 ай бұрын
Thank you for the great solution and footage. Please make another video with the installation of components in which a 110v power supply will be used
@d614gakadoug99 ай бұрын
These small switchers are invariably flyback types. Significantly raising the output voltage of the supply MAY result in damage to the switch on the high-voltage side. If you are using an AC line voltage well below the allowed maximum you are probably safe. If your line voltage is already near the maximum allowed, you could destroy the switcher. The secondary voltage is "reflected" back to the input side and "stacked" on the supply voltage according to the turns ratio of the so-called transformer when the switch turns off and the energy stored in the input winding is being transferred to the output winding. This is the only time that the inductor really acts as a transformer, and it is a design limitation for a flyback converter. Typically the inductor is designed so there is some safety margin between the sum of the peak DC on the input side and the reflected output voltage and the voltage rating of the switch. If you increase the output voltage it may result in exceeding the maximum allowable voltage across the switch which usually causes it to fail short-circuit. Another potential problem is that many of these switchers use an extra winding on the inductor to power the switcher IC after it initially starts. If the output voltage is set too low the IC may get insufficient voltage to keep it running, resulting in in shutting down, trying to restart, running for a fraction of a second (typically) then shutting down again.
@andreystya664411 ай бұрын
It will work in low current range (ae no load), because voltage output element is transformer, that zener only for voltage stabilization via feedback circuit.
@user-xp7ho2dw3f11 ай бұрын
An excellent and necessary device, thank you!!!
@Gagibit11 ай бұрын
I have analog version made from little tranformer 30V 150mA with current limiter at few mA so i can check the Zener diodes values up to 30V.....but this is AWESOME idea as well...very compact!!! Will do some of this as well for sure!!!
@neiliewheeliebin11 ай бұрын
Your idea is good but this is dodgy as hell somebody will get hurt I think you know this
@turnetblack11 ай бұрын
Thanks to the clear and concise way you explain it makes one want to go do it right now
@Inventor_AW11 ай бұрын
❤️❤️
@anilpatel13984 ай бұрын
Very good information, earlier i show one circuit with multimeter after adding some circuit we able to measure led, zener diode , mcpc ect, and there voltage.
@Inventor_AW4 ай бұрын
thanks for watching
@evertonhenrique700911 ай бұрын
Very useful to discover the power of any components.
@aldemiralveslima32049 ай бұрын
Fantástico! Indispensável na bancada de qualquer profissional da área da eletrônica. Parabéns e obrigado por compartilhar. Um respeito abraço do Brasil 🤗 🇧🇷🙏
@Inventor_AW9 ай бұрын
Obrigado
@lucianorobaldo58754 ай бұрын
@@Inventor_AW9l😅
@reptilian_leader_276911 ай бұрын
Thank you for the useful information, you explained it clearly and made it easy to understand! 👌🏻
@jefersoncarneiro909211 ай бұрын
Verdade
@yusufgaridi952311 ай бұрын
easy to understand......even to lezard-men like you
@reptilian_leader_276911 ай бұрын
@@yusufgaridi9523 now you, I don't understand, on account of the fact you make no sense... You're better off blowing things up instead, like national monuments!
@louf717811 ай бұрын
Nice! Looks similar to the TV backlight tester device.
@agahgokdag184511 ай бұрын
Thanks to you, I can evaluate our old chargers, thank you very much...
@sureyyaak5215 Жыл бұрын
Thank you very much for this very useful device. In my opinion because of the voltmeter power supply is maximum 30 Volts, you don't want to excess 29 Volts. If it is possible to increase the output voltage more than 30 Volts, you can add for example 7812 voltage adjusting device and take + 12 Volts for power supply of voltmeter. Thanks again. 👍
@Inventor_AW11 ай бұрын
I just didn't want to strain the transformer
@general510410 ай бұрын
THAT WAS BEAUTIFUL ! I tried to take an electronics course at a local high school tech night-school, but there weren't but 5 in my class. I was 15 and tge average age was 25 to 40. They cancelled our class & gave us the choice of getting our tuition back or choose another class. I went to MACHINE SHOP. What you did I followed, but didn't understand the WHY's and Where-fores. I understand, pretty much, what each thing does, kind-of, but not together. Please do a video on HOW components do the outcome, together. My expertise was rewires and burn-ups on Locomotives. I let somebody else take care of the solid state stuff. Thanks again fir your content. It was very well done! I'm fixing to SUB.
@albertogomeztobon29646 ай бұрын
Saludos desde Medellin muchas gracias por compartirnos tus grandiosas investigaciones
@derkarhu507911 ай бұрын
if you just turn the pot around, you would get increasing voltage with clockwise rotation....
@omarflores742111 ай бұрын
, 😊😊😊
@ernstlessau820811 ай бұрын
Why *you{͡ ಠ ̯͡ಠ}* are telling this deep secret ㋛ ! - _? ?_
@merwynvincent11 ай бұрын
@@ernstlessau8208he he!!!
@general510410 ай бұрын
careful...folks will be looking for some POT. (Some of that wacky-backie, "smoke it and take a trip and never leave the farm!") Say Variable Resistor or POTentiometer.
@bobo888bobo4 ай бұрын
here multimeters are cheap at harbor freight, etc. Does this do something a regular multimeter can not? It might be more useful to use a case mountable potentiometer that can be easily adjusted and make this into a variable power supply. you could use this voltage display or use a voltmeter ammeter display.
@ceciliauribe5960 Жыл бұрын
Muy buen video y excelente explicacion. Muchas Gracias.
@Inventor_AW Жыл бұрын
Gracias
@ThePhoenixAscendant11 ай бұрын
Bruh, I've got to say this has been one of the best demonstrations on how to desolder components from a PCB. I WILL be referencing this in the future when I move and have time to get into electronics again...
@Inventor_AW11 ай бұрын
I wish you a good luck
@tableseven813311 ай бұрын
Grand idea and useful point. I at first thought you were going to just make a adjustable power supply, but what you made was very good a testing device for Zener diode mostly or LED diode power value. I am still shocked to see the original power adapter have the possibility of 30 volts. I'm assuming that phone charger is a 5-6 volt power adapter, so that Zener diode had a lot of blocking to do. It is no shock these can still overheat. That voltage drop energy has to go somewhere....
@user-ti2qv3cy2u11 ай бұрын
Very interesting noticed
11 ай бұрын
The zener is part of the regulation circuit with the opticoupler, it wasn't directly on the output
@tableseven813311 ай бұрын
@ Ok, I have seen that on a older circuit years ago, the Zener being the last low end regulator after many voltage dropping resistors and capacitors.
@professorg83839 ай бұрын
I'm guessing that if this is a so called "universal input voltage" model, it won't make 30 VDC in the US. But you are right in that if it was designed like that, there's a lot o wasted energy and heating, built into the design. I guess it's easier and makes manufacturing simple, but it is inefficient. I'm in the US with the 120v 60Hz standard and I've seen a lot of issues with this universal input designs. Mostly, underperforming issues. I suppose the heat and efficiency issues are more likely in the 240V world. I hate looking at these kind of videos for a bit and then realizing what they are building was designed for the 240 volt world! I get that there are only about a billion of us using split phase voltage, 60 Hz in the100-125 volt range and that many more people have the 240is volt, 50Hz standard, but realistically, most of those people can't even read!! AW says it doesn't matter, but in many cases it does. Just my two cents, but electricity as distributed, is not universal. The physics works the same no matter where you live. But when you are modifying consumer goods for alternate purposes, one needs to understand that those items really are universal. Modification you make to devices in one country, very well may not work in another,
@GianF1239 ай бұрын
@@professorg8383: questo progetto va bene sia per alimentatori per 230 volt sia per 110 volt. La dissipazione è uguale in entrambi i tipi di alimentatore perché il funzionamento è switching.
@AmazingSmart-ngth7 ай бұрын
WOW!!! Thank you so much for sharing your tips and tricks with all of us and I’m very impressed 😊
@johngarrido2763 Жыл бұрын
Excelente video. Sus videos son muy útiles.
@Vilvaran9 ай бұрын
Well at least it's not as deadly as some - but i'd still look at that transformer closer before using it. Also most phone chargers will have a '431 reference of their own, so modifications are either easier or harder, depending on the circuit... Finally, you should never push a transformer winding too far outside it's design voltage, as things get quite inefficient - possibly even dangerous! There is a reason why a relay clicks in the benchtop power supply; it selects three taps on the secondary winding - 0-7V, 7-15V and the final one goes to 30V... Simply looking at transformer action etc. should make it clear as to why it does this (hint: it's to do with 3Amp output current) Here there is a 10K? resistor, to limit the current - so the power handling is actually not bad...
@neculaisirghiuta475810 ай бұрын
would this work with a 2 wire (red/black) voltmeter? and how would you alter the circuit in that case?
@Inventor_AW9 ай бұрын
2 wire voltmeter won't measure less than 3V
@ShahadatHossain-or4is11 ай бұрын
Sir please make a video about auto on off timer circuit for any project.
@Inventor_AW11 ай бұрын
I will
@mahamdaliali36175 ай бұрын
Very wonderful idea
@josegeronimodasilva2559 Жыл бұрын
Rapaz, muito bom mesmo. Simples mas eficaz. Parabéns pela excelente ideia. DEUS continue te abençoando.
@Inventor_AW Жыл бұрын
Obrigado
@wandermiranda31345 ай бұрын
essa pecinha azul serve para aumentar e diminuir a voltagem? por que tem um no AVR do meu gerador e eu aumentei e vi que mesmo ele em marcha lenta a energia ficou mais forte, só que não sei se isso pode estragar ele.
@ArshadMehmood-kz6ez7 ай бұрын
crt tv fly back nosel which is having high heat resistance, cut the half inch straight part and push on soldering sucker that work well and this way sucker white plastic tip will not damage the pcb. Please make a short vlog on this.
@Inventor_AW7 ай бұрын
I will
@amrzakaria529011 ай бұрын
Good job, Thanks a lot.
@tomasmorey12699 ай бұрын
I am industrial technician, repairing and installing freeze and cold systems. I´m not into electronics repair, but that looks great tool for you guys. I saw the complete video, very interesting. Thanks for uploading clear and good quality explaining. Best,
@user-ug2ns3cx5c6 ай бұрын
It's amazing! Thanks a lot!
@pauljanssen759411 ай бұрын
Depending on voltage drop in wattage is how much heat your have to absorb
@nexus44611 ай бұрын
I just did this, was testing a smd LED, touched the uninsulated connections to the power supply inlet with my elbow…. Muscle spasmes and my arm shot out…. Punched the cat….. cat went out the window…. Landed on my old school teachers head….she fell over onto my car and broke my door mirror! Thanks! Now I have no door mirror and a vets bill for a cats PTSD fear of heights and a school teacher that now gives my kids bad reports at school parents evenings! All for saving a couple dollars on a ready made unit!
@Inventor_AW11 ай бұрын
A wonderful fairy tale .. Thank you for sharing
@tomhenkel432811 ай бұрын
Do the component values change for 120VAC? I noticed that the unit had a European plug so was probably running on 220VAC @ 50Hz.
@Inventor_AW11 ай бұрын
no changes
@luizfernandolessa188911 ай бұрын
Muito bom. Assim que eu tiver o voltímetro e o resistor variável, vou tentar fazer, um pois é muito útil. Saudações do Brasil.
@Inventor_AW11 ай бұрын
Obrigado e desejo-lhe sucesso
@sivan008111 ай бұрын
Is it possible to make a power supply 5V 1.5A with this modification if I have a 2A charger ??
@Inventor_AW11 ай бұрын
This modification is for controlling the voltage via feedback
@eekee603411 ай бұрын
Neat little project. :) The video is easy to watch and listen to. It was good to clearly see how to desolder; I haven't had enough practice at that.
@Inventor_AW11 ай бұрын
❤️❤️
@davidzoroastrian59208 ай бұрын
Thank you sir! very amazing! But what happened to LED?
@Inventor_AW8 ай бұрын
which LED?
@cici815811 ай бұрын
Adoro eletrônica parabenizo vc por compartilhar seus conhecimentos 👍
@jacielrj11 ай бұрын
Ferramenta excelente!
@timmilton26389 ай бұрын
Great video thanks! Please can you tell me what model of mobile phone charger was used? My old ones have different PCBs internally...
@Inventor_AW9 ай бұрын
Chinese charger 5V 2A
@timmilton26389 ай бұрын
@@Inventor_AW Thanks 😊
@WiekingderViking11 ай бұрын
So nice to see a fellow who actually knows how to solder!
@Inventor_AW11 ай бұрын
thank you bro
@mickymannis9 ай бұрын
Hi What are the specs of the phone charger you used to build this?
@Inventor_AW9 ай бұрын
Chinese charger 2 amp
@robertmalinowski54515 ай бұрын
Hi I wanted to ask what maximum current output would be possible if I use charger 12v 2.5a for this project?
@Inventor_AW5 ай бұрын
As the voltage increases, the current decreases
@robertmalinowski54515 ай бұрын
Thank You. Could you tell me if this set could handle 6v 5amp or 3v 10amp?
@Inventor_AW5 ай бұрын
no@@robertmalinowski5451
@user-ut3ly8kf9l5 күн бұрын
Que bueno !!! Te felicito un buen probador de diodos comunes , zener y led, lo voy hacer , gracias amigo . y Viva la libertad, carajo !!! VLLC!!!
@Inventor_AW5 күн бұрын
Gracias y buena suerte
@juanignaciocaino11 ай бұрын
Earned a sub. Great content!
@Inventor_AW11 ай бұрын
thank u
@ChrysalideEngineering9 ай бұрын
Hi, I never through old electronic stuff and it very often find its use, even just for study of their design and not only electric parts ... Regards Jean-François
@wilsontrindade71105 ай бұрын
Ferramenta incrível. Vou fazer uma tbm. Obrigado
@Inventor_AW5 ай бұрын
Boa sorte
@geraldoalexandre881810 ай бұрын
Acho sensacional esse tipo de recurso eletrônico para recuperar aquilo que está danificado e até melhorar o seu funcionamento. A eletrônica sempre me fascinou desde de criança. Meu pai estudava eletrônica via correios e chegou a montar um rádio. Enfim, o video foi muito interessante.
@Inventor_AW10 ай бұрын
Obrigado ❤❤
@davysonbatista9 ай бұрын
Meu falecido pai aprendeu pelo instituto Universal Brasileiro, todo mês saia um livro diferente, chegavam partes do circuito todo mês pra montar.
@17albert869 ай бұрын
ну радио это круто, но мой дядя собрал компьютер в 88 году, и это делали очень многие советские студенты) называется zx spectrum.l
@Jerm.084 ай бұрын
I like how you explain what the name and number of the part your using
@Inventor_AW4 ай бұрын
thanks for watching
@matiasgatti19877 ай бұрын
Awesome! Thanks!
@quipstad11 ай бұрын
This is a super cool device that I would have had use for recently! Instead, I took LEDs of differing voltage ratings and a whole bunch of resistors to make them equal brightness. Question: how can this circuit measure the "voltage" of an LED, which obviously can be safely run at different voltages? How does it find the nominal or ideal voltage?
@alexander355411 ай бұрын
A semiconductor PN junction has a certain forward voltage, depending on physics and chemistry. If you apply a rising voltage to it in the correct direction, nothing happens until that threshold voltage is reached and then current starts to flow. Raising the voltage will dramatically increase the *current* flowing through the junction, while the voltage across remains fairly constant, until it overheats and dies. Here a 10k resistor is put in series to limit the maximum current. The 30V is high enough to turn the PN junction on, which then remains at its forward voltage, with the remainder dissipated across the resistor. The voltmeter simply measures across the PN junction, showing the forward voltage, which is relatively independent of the current.
@Inventor_AW11 ай бұрын
Well explained
@quipstad11 ай бұрын
This is an incredible explanation, thank you so much!
@azmilerio8810 ай бұрын
this is zener diode checker and tester.. briliant...
@arsalanzia11 ай бұрын
can we use lower voltage and amperage adapter? like old nokia charger voltage around 5v and current around 800mA?
@Inventor_AW11 ай бұрын
Provided that it has the same feedback
@arsalanzia11 ай бұрын
@@Inventor_AW sorry didn't get what feedback is?
@atifservicecenter11 ай бұрын
@@Inventor_AW feedback can only change the voltages according to it's reference, what about the amperage ? I don't know what was the amperage rating in your modified adapter, how it handled the 15v led bulb load 🤔 I've modified a laptop adapter recently, ratings was 19.7v / 5A. But when I increased the voltage amperage goes lower, and when decreasing the voltage it's came to it's full amperage 5A.
@Inventor_AW11 ай бұрын
@@atifservicecenter Yes, the voltage rises due to the decrease in the ampere.. But in my project, I used it only to test the zener diode and the LEDs and this does not require a high current
@Inventor_AW11 ай бұрын
@@arsalanzia feedback controls the value of the voltage coming out of the transformer.. In the circuit used, the zener diode and the optocoupler represented the feedback
@technicallearneronlysaarth209711 ай бұрын
Wow it's so awesome. Really I fulfill my all requirement from this project. Thanks to share this knowledgeable video for us. "The Technical Learner" ( Mr.Chandrakant.S, From India.)
@Djvbxns11 ай бұрын
*Не стоит забывать о том , что не смотря на изменение выходного U , выходная P (мощность) = остаётся прежней* ☝
@dadayzkieh168711 ай бұрын
I love it and I want to try but I want to use DIGITAL VOLT METER with AMP. how can I conect?
@Inventor_AW11 ай бұрын
The same connections, in addition to connecting the amp wire in series with the load
@dadayzkieh168711 ай бұрын
@@Inventor_AW ..ok thanks bro 🥰🥰
@user-qt4yv4wt5x9 ай бұрын
Gostei muito do projeto, só tenho uma, a fonte utilizada foi de 6v 1A,mas esse projeto eu posso utilizar em outras fontes como de 5v, por que é a fonte mais utilizada nos dias de hoje, ou eu tenho que utilizar o mais próximo do seu projeto, porque eu gostei muito e doido para fazer. Obrigado por divulgar o seu ótimo trabalho.
@Inventor_AW9 ай бұрын
Eu te desejo sucesso
@Mario-iv5tu9 ай бұрын
Grazie! Molto utile per scoprire la tensione di qualsiasi LED.
@riyazshaikh637311 ай бұрын
I have a question? Can it modified to use the Multimeter, We will not be spending on extra Voltmeter and Probe and if Yes. Please share the modified schematic. Eu tenho uma pergunta? Pode ser modificado para usar o multímetro, não gastaremos com voltímetro e sonda extras e se sim. Por favor, compartilhe o esquema modificado.
@Inventor_AW11 ай бұрын
Yes you can.. It's simple.. Connect the black wire of the multimeter to GND and the red wire to the 10k resistor
@cagatayunlusoy184311 ай бұрын
Did you solder anything in place of the led?
@Inventor_AW11 ай бұрын
no
@DIEmicrosoft10 ай бұрын
Did you just plug into mains voltage to fiddle with it?
@Inventor_AW10 ай бұрын
I had to test like this so that no one would suspect the video...but I know what to do
@gundogankazanc92415 ай бұрын
i advice you to use a piece of silicon cable isolator for your soldering pump's end pipe. it's original part is normally too rigid plastic and you can buy a lastic cover but they are expensive, whereas 2-3 cm silicon cable cover is almost free and more useful than original one.
@Inventor_AW5 ай бұрын
Thanks for the advice.. Yes I know it and you can find it on an old CRT TV high voltage transformer cable
@gundogankazanc92415 ай бұрын
@@Inventor_AW i don't know your country's trade conditions but we can find the silicon cables at any electrician shop. for this application (to cover soldering pump edge or mouth) it's ideal just 6 mm outer diameter of cable isolator.
@accho85211 ай бұрын
I own an UT33C since 2016.
@agusramdoni348911 ай бұрын
Thanks for tutorial yhanks for sharing.. 👍
@foxmolder640811 ай бұрын
it is quite dangerous to OVERCLOCK the fly power supply at 6 V to 30 V with such a power, the reverse voltage on the output diode will grow (up to 250-300v) and it needs to be changed! but what is much more dangerous is the gratifying voltage on the 1 winding and the corresponding impuls on the MOSFET DRAIN inside the PWM CHIP! if it exceeds the limit for them (and this is very likely), then there will be a big EXPLOSION and possibly a fire! but the idea itself is of course interesting, just for the correct and safe release of it, you need to recalculate and rewind the transformer for your new voltage and replace the diode with a corresponding voltage 400-800v ulta fast diode!!!
@ernstlessau820811 ай бұрын
... and his mounted Resistor is instead of 10 KΩ = 1 KΩ : brown-black-black x brown ➜ 1-0-0 x 10¹ ≙ 1000 Ω ! And why no one did realize that ! - ? ? { ͡ ๏ ̯͡๏ ?
@mikemir673811 ай бұрын
Yes, it can destroy the mosfet, but the reverse voltage on the output diode will be about 60 v, not 250-300v.
@ovidius20004 ай бұрын
@@mikemir6738why?TheMaxVoltageIs EfectiveVoltage times 1.41 🤔?
@mikemir67384 ай бұрын
@@ovidius2000 On output side U max = 30 V. M1U schematics (wih middle point) : reverse voltage on diode = 2*Umax out. If you have fullbridge rectifier : Urrs = U max out.
@giuliorapsant21397 ай бұрын
Bonjour votre montage m'intéresse fortement mais pourriez-vous indiquer la marque et modèle du chargeur car j'en ai déjà démonté plusieurs qui n'ont pas du tout la même configuration. Cordialement
@Inventor_AW7 ай бұрын
Cette restriction s'applique à tout chargeur doté du même circuit de rétroaction
@user-ot9jy9tv9u7 ай бұрын
Pregunta este proyecto lo puedo utilizar para el funciomiento de un taladro que consume 18 v.? Muchas gracias desde Cartagena Colombia y muchas bendiciones
@Inventor_AW7 ай бұрын
No, la corriente a 18 voltios será inferior a 1 amperio.
@ch2o29 ай бұрын
nice, but why don't you show the schematics of this diode-replacement (potentiometer circuit) at 2:33 ?
@Inventor_AW9 ай бұрын
thanks , We replaced the fixed zenner diode with the variable one
@electronics281910 ай бұрын
great idea, but LEDs are current sensitive it means that if more current is passed than what a led is designed for , it may cause burning. most of 5mm LEDs requires about 20mA to work properly. so how output current is controlled!!
@Inventor_AW10 ай бұрын
There is no worry about current because there is a 10k resistor connected in series with the voltage source. On the other hand, the voltage rises at the expense of the current decrease
@raytry6911 ай бұрын
I wonder how many times you got shocked by the mains during making this.
@Inventor_AW11 ай бұрын
0
@santiagoduenas61117 ай бұрын
Nice trick, don’t forget to change the output capacitor to one with 30v or over
@Inventor_AW7 ай бұрын
I replace it to 50V cap
@pault653311 ай бұрын
That 470 uF 16v cap dies anyway on these units anyway. Even without the mod it’s a good idea to replace it.
@fredt110811 ай бұрын
I'm assuming he replaced the cap with a higher voltage rated one. Otherwise the original cap would have popped like a party favor when the output was cranked up to max.😳 you could use an LM317 too.
@user-gf3ck8yl6r2 ай бұрын
Здравствуйте.Лазерные диоды с cd rw или другие лазеры, проверяет? Вы, можете дать ответ?
@tunceru.943011 ай бұрын
Is it possible to make this circuit with a powerbank?
@Inventor_AW11 ай бұрын
Watch project number 1.. Replace the 9 volt battery with a power bank kzfaq.info/get/bejne/n69ka62ou9uyfKs.html
@hactechno937611 ай бұрын
Excellent work. Great explanation.
@Inventor_AW11 ай бұрын
thanks
@RaindropServicesNYC11 ай бұрын
First video I watch... I already like you. Subscribed!
@Inventor_AW11 ай бұрын
thanks
@alessandroricci729411 ай бұрын
Forgive my ignorance, but what's the use of the pot if it's to be set to its highest value? Wouldn't be more convenient to use a resistor, was it 500K?
@Inventor_AW11 ай бұрын
It was possible for me to do without all this and just put only a 30 volt zenner diode.. but I wanted to communicate the idea to everyone.. Maybe you want 16 volts or 12 volts...
@alessandroricci729411 ай бұрын
@@Inventor_AWthanks for your reply, but what I was thinking is what is the point of having that maximum value adjustable: do you get more accuracy if you keep the highest voltage at 16V instead of 30V or I don't know how high it can go. Could I place a pot with external knob so I can adjust it as needed?
@Inventor_AW11 ай бұрын
@@alessandroricci7294 Yes, you can use it as a variable voltage source, but the higher the voltage, the lower the ampere
@Theeslickness11 ай бұрын
Can you buy this type of device premade? What is it called?
@Inventor_AW11 ай бұрын
There is " LED tester ".. but be careful because the output is +300 volts
@robinsattahip23769 ай бұрын
Interesting, but I would have picked a better charger to modify. That's one of those dangerous Chinese suicide chargers that doesn't even have a fuse or interference filter, and if CY1 is really a Y-rated capacitor and not just a 1KV cap I'd be surprised. I don't even like having those things around.
@All-sound-solution4 ай бұрын
Super job
@Inventor_AW4 ай бұрын
thanks
@edemirmedeiros3346 ай бұрын
Simplesmente brilhante a idéia! Só queria saber se podemos fazer com fonte de 5v? Saldaçoēs do Brasil🖒
@Inventor_AW6 ай бұрын
O importante é que ele contenha um circuito de realimentação semelhante ao que usei no vídeo
@07111981snake11 ай бұрын
Muito útil o equipamento que construiu! Desejo-lhe sucesso na vida e sucesso profissional.
@Inventor_AW11 ай бұрын
Obrigado
@sarockpashotan11 ай бұрын
Hi sir.if the probs of voltmeter is used the wrong way ( not the right pollarity) will it burn the led when it is being tested? Or it does not matter and nothing will happen?!
@Inventor_AW11 ай бұрын
Nothing will happen
@sarockpashotan11 ай бұрын
Thanks for replying
@ecsolda29984 ай бұрын
Obrigado por colocar legenda!
@yuhuachen287111 ай бұрын
Thank you for sharing this video. 👍 👍 👍
@Inventor_AW11 ай бұрын
❤️❤️
@alexandre779611 ай бұрын
Muito bom. Pelo que eu entendi voce usa uma fonte de 6v 1a. Se eu usar uma fonte de 12v 1a também vai dar certo ou preciso fazer alguma mudanca?
@Inventor_AW11 ай бұрын
Você não precisará de nenhuma alteração
@Roottech259 ай бұрын
how much current is that thing able to output?...
@Inventor_AW9 ай бұрын
200mA almost
@jesusalvarezfebres65923 ай бұрын
Excelente tu proyecto y muy practico.
@Inventor_AW3 ай бұрын
gracias
@claudivanmoreira32636 ай бұрын
Qual é o objetivo desse tipo ferramenta? Calcular a tensão consumida por determinado componente? No próprio multímetro ja nao é possível fazer isso? Qual a ideia por tras de injetar tensao num componente na placa?
@Inventor_AW6 ай бұрын
O multímetro não mede o LED mais de 3 volts
@ursopolar653511 ай бұрын
Well done!
@HomeTheatres4 ай бұрын
excellent
@Inventor_AW4 ай бұрын
thanks
@KumaruFernando-dx9gj11 ай бұрын
Great video waiting for more
@Inventor_AW11 ай бұрын
thanks
@nurulaqidah48984 ай бұрын
ahirnya ketemu juga tutorial yg saya cari cari terima kasih boss 👍 sukses buat anda 🙏
@professorvargasp486111 ай бұрын
Simplesmente incrível. Muito bom ! Parabéns !
@Inventor_AW11 ай бұрын
Obrigado
@andygibson814311 ай бұрын
That is nice soldering !
@Inventor_AW11 ай бұрын
thanks
@andygibson814311 ай бұрын
@@Inventor_AW I have soldered for well over 30 years, no expert, but well trained !