Voltage Multiplier Circuit Using Diodes and Capacitors

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This electronics video tutorial explains the workings of a voltage multiplier circuit that can be made using diodes and capacitors. This circuit converts an AC signal into a DC voltage with an output that is nearly x2, x4, or even x6 the input voltage.
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Опубликовано:

11 фев 2020

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Комментарии : 86

@TheOrganicChemistryTutor 5 месяцев назад

Final Exams and Video Playlists: www.video-tutor.net/ Full-Length Math & Science Videos: www.patreon.com/mathsciencetutor/collections

@valenmosquera9 4 месяца назад

You're literally the only person who didn't skip important steps. Thank you!

@mariolazzarini5806 Год назад

By far the best explanation I´ve seen of this. Finally, someone explains in detail every cycle. Thank you so much!

@amitzerikunthe7635 9 месяцев назад

i can't express in words how u tought this concept....i saw nearly 10 videos but i did't ge understand from anywhere but u explained it in very easy way.....thank you so much sir

@binbin6525 4 года назад

I really appreciate your videos. Your videos are awesome and I can easily understand it. Thank you SO MUCH. You are a good speaker.

@alexgee248 Год назад

This is the best explanation I've seen yet. For the first time I understand how this works.

@thanksgiving156 4 года назад

✊🏽✊🏽 keep on doing the electronic lessons✨💖💖💖. I really need them. I have downloaded more than 10 videos of Electronic lessos

@snoobeagle 3 года назад

Very good tutorial! Helped me a lot!

@inventorbrothers7053 3 года назад

Awesome explanation! I now understand how this circuit works! Thanks!

@thehaseeb9136 Год назад

Thank you sir, Only well explained video on YT.

@Marimuthu-hn7pr 3 года назад

Sir,I really many more & most thanks because that circuits work on my maintenance department //lot lot of thank you very much

@igorying8548 7 месяцев назад

Very clear explanation, thanks!

@stephendixon8575 2 месяца назад

Excellent effort to explain the complexities of this type of circuit. It’s helpful that you explained why the voltage drops across the diodes were left out the calculations for the sake of simplicity, but I think it is also worth explaining that 12V AC power source in this is also being simplified to mean 12V Peak AC, rather than the usual 12V AC being RMS (i.e. an ‘average’ of 12V) where the peak voltage would actually be higher (~16.9V before diode voltage drops). Appreciate you’re trying to simplify things, but its important people understand the actual voltages would be much higher (especially if anyone is thinking of playing with making a real circuit!). Great job 👍

@Amandeeprana437 Год назад

Thank you so much, i understand easily from your video..

@landonfrigault2183 Год назад

Oh man, the things I would do to this man, for all the help he's given me over my career, insane.

@Glockperfection666 2 года назад

Best !!!

@akamiyire4147 4 года назад

wow your voice is very clear in this video thanks man keep the good work God bless you million times a day.

@energyforever720 2 года назад

does the voltage across the capacitors ever get higher than double the input voltage? like, if you had 100 stages, would the voltage measured across the capacitor in the 100th stage only be double the input voltage? im trying to understand what capacitors should be used in a circuit like this, that info was absent from the video for some reason. is there a rule of thumb for picking capacitors for votage multiplier circuits, like 4 times the input voltage no matter how many stages you make? also, is there a maximum amount of stages you can make?

@JackieBrown3123 Год назад

Good explanation thank you. What type of diode and capacitor could we use? What is the maximum frequency used with this circuit?

@user-sc5hj4nu3u 9 месяцев назад

Good explanation, thanks!! Is it possible to multiply voltage of small signals using this method?

@nishitjoshi1600 3 года назад

can you make a explanation video on voltage multiplier ckt working a dc source

@Lababthuh 3 года назад

Why does the current not flow to C2 in the 1st negative cycle?

@ATLAStheprima-synth 3 года назад

Hi I have a question well a few the first one is do I have to have a transformer on the input the second one is do you need different number diode‘s for each connection because I only have one kind third I’m using a set called snap circuits and the only other numbered diode‘s have lights on them which sucks up a lot of voltage please respond thank you

@sravanth3008 4 года назад

yo whats that software you use man?

@blissboy1642 Год назад

Please I want to know if this strategy also work for Ac to AC voltage booster

@luizcvieira3124 2 года назад

So... if you manage to control the 12Vac from 0 to 12, you're going to have a 0 to 72Vcc controlled output, minus all diodes' voltage drops. Considering a possible high-voltage source to, say, capacitor revival, a sinusoidal generator (60Hz or some more suitable frequency) connected to the input of a "tunned" symmetrical power amplifier with some tens of output voltage and some hundreds of milliamps @ its output and driving a multiplier would then give us a DIY controlled high-voltage, low-current capacitor revival circuit. Also, each diode junction would provide some lower voltage output, that could be connected to a selection switch for max voltage output. Hummm... Sound "delicious"... Of course, capacitors' working voltage MUST be carefully set, or else... KABOOM!!!

@descampk2346 4 года назад

That parallel battery gon blow up

@sakdavith6969 4 года назад

Could u make an explanation vid on integrated circuit?

@alimuhammad.s3013 8 месяцев назад

Is this a practical ckt? Can we run loads on it like LCD?

@ninjafishing7120 3 года назад

Can i series the capacitor without the diode ? Will it work ?

@ShilohSedlak 3 года назад

If every one of the capasitors are only rated at 12 volts will this system still work? Or do I need higher rated capasitors all the way down the line?

@inventorbrothers7053 3 года назад

You would need an appropriately rated capacitor for the voltage potential it will be storing.

@kruimels Год назад

I live in the Netherlands, were we have 220 volt ac. What kind of capacitors and diodes I need?

@user-ej4up5ev8c 13 дней назад

Are AC capacitors needed? Or does it work with DC capacitors?

@ikekennedy9700 3 года назад

How would you hook up the input and output

@brandonsmith8680 3 года назад

Input could be a battery and output could be an arc

@reginaldhorkyiiregorreggie1559 Год назад

current doesn't flow thru a capacitor. if it did it would be called a short. I think what you mean is charge the capacitor. outside of that, thanks. lol. I made one when I was ten. now I know why it didn't work. I used dc. I wonder if that's the same principle behind a fly back circuit. I'm designing an ac inverter for fun and I'm dead set on using the irfp250's that I ordered at 120v. hum? I know lower voltage rectification. but I don't want to. I want to use the 250's at a higher efficiency.

@jaysmith3259 Год назад

Current always flows during capacitor charging until finished with the voltage you're charging it with.

@adhambarakat8688 3 года назад

Is he using conventional current flow?

@doprisi 2 года назад

If you discharge the circuit, will only the last capacitator be discharged or all at once? I would bet only the last given how a capacitator works.

@kietluu4577 5 месяцев назад

Where are the positive and negative ends of the output voltage?

@alessandrodesessa3158 5 месяцев назад

Why do capacitors charge up one at a time ? Wouldn't they all charge at the same time ?

@iwantsushant 3 года назад

But In the mosquito bat this formula used with different style???

@Cien_Swiatla 3 года назад

Can you explain why D1 and D2 do not discharge the capacitor C2?

@PunmasterSTP 2 года назад

I think the reason would be because the terminal of C2 connected to the cathode of D2 is at a higher voltage than the terminal of C2 connected to the anode of D1. Therefore the diodes would prevent the discharging of C2, since they would be reverse-biased in that situation.

@jaysmith3259 Год назад

Because the second half cycle coming off of source voltage plus charged C1 at 12 volts, makes it a 24volt charge to charge C2.

@Cien_Swiatla Год назад

@@jaysmith3259 Thx

@kristofersozo464 3 года назад

Is there any simple formula for this circuit?

@successthruknowledge 2 месяца назад

It was a good lecture though I guess that I'm hazy yet why the current only goes through the nearest diode back to the negative terminal of the AC source and not dividing itself between the diode and the next capacitor along the wire. If you follow my reasoning. For example after the current passes through D1 and charges C1 then why doesn't it charge also C3?

@karhukivi 2 месяца назад

Just a quick answer, because as it charges C1 the voltage is held constant and a silicon diode needs a forward voltage of about 0.7V before it conducts, so D2 isn't conducting. .

@successthruknowledge 2 месяца назад

@@karhukivi thanks!

@juanmf 7 месяцев назад

No increase in energy but no waste in skin effect of magnetic induction.

@aselim20. Год назад

I watched it.

@usermlgbzzcnm Год назад

why in the first negative half cycle current isn't flowing through c2-d3-c3-c1 etc.

@jaysmith3259 Год назад

Because current flows the path to Source with the least resistance with the voltage you're starting out with.

@Renshen1957 5 месяцев назад

What you illustrate in this video is known as a Cockcroft-Walton Multiplier...

@abdessalemakerma4636 4 года назад

the polarized capacitor cant run by Ac !!

@inventorbrothers7053 3 года назад

ha good catch

@abdessalemakerma4636 3 года назад

@@inventorbrothers7053 what do u mean

@inventorbrothers7053 3 года назад

@@abdessalemakerma4636 I meant that it was Good that you caught the mistake made in the video. That polarized capacitors can't take a reverse polarity voltage. That's all.

@abdessalemakerma4636 3 года назад

ah okey thanks

@S24W2 10 месяцев назад

Actually, the polarities on the capacitors are not changing

@newton4098 3 года назад

wait parallel batteries dont subtract thier voltages. You either add the volts, or add the Amps......

@indibil 4 года назад

¿And the ground is connected 1/2 wave to positive, and 1/2 wave to negative???? don't produce short circuit with the rest of circuit??

@Dinco422 Год назад

Is not really 'as far as you want' because of the losses.

@juancarlosabad3298 4 года назад

...any AC voltage source is specified as Volts - RMS = Vrms...so a 12Vrms voltage source will charge the first capacitor at 12V*sqrt(2) = 16.97V ~17V (- voltage drop on the diode ~0.7)....~16.3V ...and not to 12V as wrongly explained in the video...

@abhiramkj2910 4 года назад

Look into peak detectors

@jaysmith3259 Год назад

He is explaining the first half cycle, not the second half cycle.

@Someone-de7wf 4 года назад

What grade is this?

@keepmehomeplease 4 года назад

Probably college electromagnetism or AP chem

@Someone-de7wf 4 года назад

Koop Bar Oh wow, thanks so much

@sakdavith6969 4 года назад

@@keepmehomeplease probably more of electronic engineering.

@keepmehomeplease 4 года назад

@@Someone-de7wf can't tell if you were being sarcastic but what i meant in actual grades was probably around 11th grade or college introductory type class

@ExodusX1 3 года назад

@@keepmehomeplease oh, I'm in 8th grade lol. I enjoy learning about electricity and circuits.

@paulosergioenergia1659 3 года назад

I wish know about frequence response of this kind of circuit, if someone did, plz awsner this coment.

@mattstroker3742 2 года назад

Why only ac? Why doesn't anyone talk about a DC version?

@WaffleRune 5 месяцев назад

It should be easier, and then you use a rectifier to turn it into AC with a total voltage smaller than the peak voltage, but still above like, half of it, specifically Vp/√2

@thecyborg6718 2 года назад

Current it flows only from negative to positive dude...

@mint2607 2 года назад

It flows from positive to negative based on conventional flow. I think you're basing it on electron flow?

@niksa28 4 года назад

Charging of C3 is explained very badly, he should have simply said we got +36V and -12V charging it to 24V.

@bullblood1641 4 месяца назад

Thank you! I spent around 3 hours trying to understand this with different videos, but you helped me realize the key point in just 10 minutes. You're the best! 🎉🫶🏼

@blissboy1642 Год назад

Please I want to know if this strategy also work for Ac to AC voltage booster

@Renshen1957 5 месяцев назад

It would be easy to use two transformers: Input Primary to mains voltage T1-then connect the secondary winding of T1 to secondary winding of T2, and use the primary winding as the AC voltage booster. Transformer 1 120V secondary 12 v to 12 v secondary winding T2 and Primary 230 V to 230 volts AC Use different secondary windings on T2 for desired voltage boost, advantage isolation from mains, disadvantage weight and current limited to secondary T2 rating.