Controlling A Buck Converter With External Potentiometers.

[@spacecase0]

It had never occurred to me to do that. Now I don't even have to figure out what values work. Thank you

[@burneye]

Amazing!!!!! I LOve this!!! U bad boyee!

[@manohar3787]

nice tutorial , quite helpful .thanks

[@OnceinaSixSide]

Fantastic explanation and demo, thank you!

[@johngilmour7507]

Perfect, was looking for a way to limit the range to 4v to 12v. Did some experimenting and a 1k resistor will give you 5v (if you leave the 330ohm in place). Every 0.25k adds 1v or removes 1v. Adding a 0.75k resister and a 2k pot gives me my 4v to 12v range.

[@TheAnthonyBrandi]

cool dude fr, is that 2 voltage multiplying cascades fed by 2 flyback transformers with a mosfet being controlled via IC driven by 2 boost coverters?

[@exoticpropulsion8175]

Well, 2 buck converters actually. But otherwise yes, you got everything else correct.

[@gastjjs]

i would like to know more of that hv generator. Are u using a 555 oscilating circuit? and what is the voltage input of the transformer? Im doing the exact circuit and i bought those cheap high frecuency transformers that works up to 4V safely and i wante to know how to adjust the voltage within that range so thank you very much!

[@w_i]

The potentiometer is multi turn right?

[@gnanendrasaiprattipatti9388]

I have a dought i have two supply of one is 5v (mobile charger) and another is 12v (solar pannen) Now i give both supplys to dc to dc boost module sapperatly (if i give 12v i off 5v,if i give 5v i off 12v)to same module by setting contant voltage of 13 for battery Will it give 13 v for both supply sapperatly or it changes

[@JohnSmith-iu8cj]

What’s the name of that application that you show in the beginning that has those sparks? 😮

[@exoticpropulsion8175]

That’s a Dual Rail Voltage Multiplier. And you can find lots of tutorials about how to build your own version of a “Voltage Multiplier” here on KZbin. They are actually pretty easy to make, but be safe of course :)

[@mattiplusyt2337]

Can i use a 10 k potentiometer instead of a 5 k?

[@exoticpropulsion8175]

Absolutely

[@mattiplusyt2337]

​@@exoticpropulsion8175 i tried but it doesn't work it always output around 3 volts😢

[@nyatoko8578]

Can it work for step up step down buck sir?

[@exoticpropulsion8175]

Yes, works exactly the same way on buck-boost or boost alone :)

[@nyatoko8578]

@@exoticpropulsion8175 i have done to try this methode, and work perfectly. but i think i have some problem like the current can't maximum set. but this method still help me for save my money. thankyou sir :)