How to Make a Voltage Doubler

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Voltage multipliers: • Villard Cascade Voltag...

[@cassvirgillo3395]

Hello LS, Your electronics videos are always of interest to me. Good example and explanations. I hope all is good with you. Will be looking forward to next video. All the best, C.

[@misterfrediemcfullvlogs2715]

Thanks for this kind of content it helps me a lot to understand additional voltage.

[@Tigrou7777]

What you explained is basically how charge pumps works. They are extremely efficient but are only used for low current applications. Nice video anyway.

[@melplishka5978]

Awsome vid ty.

[@surgingcircuits6955]

Good video, thx!

[@metaling1]

Thank LS!

[@sherifhassan9258]

Excellent video Plz, can this curcuit operate motor 2 amp 100 volt ? Help

[@kolinevans9127]

Hi ludic thanks for sharing, in both examples, there is a polarized ‘capacitor’ meeting the output of one or more of the inductor outputs, this seems to suggest that the polarity works like a pressure medium where by the ‘volume’ of force is exerted on the alternate polarity? If this is not the case then I’m simply confused lol

[@RobertLeyland]

Should the input capacitors be non-polarized? (Specifically on the full wave voltage doubler)

[@sidamarali3030]

Very useful. I really needed this. Thanks a million. Is there a way to double the ac without converting it into dc?

[@ludicscience]

yes you can simply use a transformer

[@sidamarali3030]

@@ludicscience Thanks once more.

[@kwhp1507]

Why did you leave the center tap of the transformer connected directly to the rectifier bridge?

[@oqueedeuseoquechamadodeus5346]

muito bom

[@psun256]

Hello! I am planning on making a voltage multiplier soon, but I need some insight on what capacitors to use. Do the capacitors and diodes have to be rated for the output voltage or the input voltage? Like if it takes 12 v ac into 24v dc can I use diodes and capacitors rated for 12 v?

[@ludicscience]

Rated at double the input voltage

[@psun256]

Ludic Science So double input voltage rated components even with a triple stage or more?

[@ludicscience]

@@psun256 yes

[@psun256]

Ludic Science Ok thank you very much! I couldn't understand a lot of information online elsewhere so I asked!

[@ralphchapin280]

The fist voltage drop in the multiplier is the voltage drop across the diodes.

[@narasangowda322]

Hi sir I want 48v regulator and rectifier how do this

[@lakiza55]

You can also modify a bridge rectifier circuit by replacing 2 diodes with capacitors, apply ~ to the common of the diodes and common of the capacitors and you have a voltage doubler or a dual rail power supply, single wave rectification, offcourse. Great for powering opamps when you dont have a center tapped transformer, for example in audio where you need + and - DC supply.

[@lakiza55]

Forgot to mention, the ground is the common of the capacitors, and positive and negative are on the other ends of the capacitors. As for the theory, it's quite simple. When the sinewave is positive, first diode conducts to charge the posistive rail cap, and the negative halfwave charges the other cap through the second diode.

[@lakiza55]

@Joachim Shekelberg indeed, works even better if you use a 1:1 voltage divider into + input of an opamp and connect the - input to the output, so a buffer, and use that as a reference(virtual ground). Although, it's allways best to have separate power supplies for example a premap and the main amp. That's why, typically, mains transformers for audio applications will have a separate secondary winding so that galvanic isolation is achieved.

[@dianaarvidson3541]

Shouldn't the center tap be grounded?

[@DeryckThompsonChasingtheDream]

Does the amps change at all.?

[@jakefriesenjake]

Look up "ohms law" The amps do go down

[@DIYwithBatteries]

Will it increases the current too

[@ludicscience]

No

[@DIYwithBatteries]

@@ludicscience ok😊

[@BushImports]

Voltage is not that hard to multiply but how do you multiply the current? Thanks and thanks for all of your videos as well.

[@BushImports]

@Joachim Shekelberg I know, but the current has to be there before it can draw it.

[@JamilKhan-hk1wl]

@@BushImports depends on how much your power supply can provide. Thats why they have voltage and power rating. You can calculate the maximum current it can provide

[@jakefriesenjake]

Use a step down transformer 🤣

[@utkarsh22smart]

This is share-worthy

[@trench01]

I hope you have a video later on to show an example in what to use it. Also here is a video you will like on how to make a power inverter work better kzbin.info/www/bejne/Z36ziGSaptqfjdk

[@zees9669]

*How to make a Current Doubler?* Then, How about combining the Voltage & Current Doublers together? May be your spot welding using Capacitors be used.

[@ludicscience]

You cannot double voltage and current at the same time

[@zees9669]

@@ludicscience I cannot, But You Can. I mean not doubling them at the same time. Make it differently, then join it using some circuit. I just wonder.

[@jakefriesenjake]

There are already current doublers out there. If you want to "spot weld", you don't want much volts, you want only amps. There are videos online how to make a high current spot welder on KZbin. Use an old transformer from a microwave, then re-wire it.