Resistor Values in Voltage Dividers Effect Current Handling

[@frankowalker4662]

Family always comes first. I hope all goes well.

[@GM-vk8jw]

You’re 100% right about family. You have already shared a tremendous amount of material on YT

[@pauljames9626]

It makes sense really and all down to Ohm's Law - if the voltage remains constant accross all three voltage dividers, but the resistance increases in each, then there's only one way for the current value to go and that's down. I've often wondered why certain resistance values are chosen over others in a circuit and you've shed some light on that. Thank you for posting and stay well

[@mikeburton8687]

no need to apologize as family does come first and the content you produce is good enough to watch more than once! Take care

[@judo-rob5197]

Thanks for the video. Take care of yourself and your family.

[@stevetobias4890]

Blessings to your family, hope all is well soon. Voltage dividers are fun time play with, especially when you experiment with thirds and quarters as well as halves. I have never played with current drops using dividers before but it makes so much sense. Cheers mate, take care.

[@phrankus2009]

Prayers for you and yours

[@michaelpadovani9566]

Family first, hopefully everything gets worked out soon. This is another great topic, good for many applications. Someone correct me if I'm wrong but the advantage of higher value resistors is lower current (as demonstrated here) but the "disadvantage" is slightly longer time to make the voltage measurement.

[@daviddevillers6790]

Family first. Simple as that. Thanks for your videos!

[@learnelectronics]

Thanks for watching!

[@johnnytacokleinschmidt515]

Best wishes and God Bless you and your family.

[@qutube100]

Nice the penny drops, that answers a question i never before had adequately explained!

[@kevinscollan8293]

Hey Paul, dont apologize for not making enough videos man you make more than the average UTuber and the quality of content is always of a high standard and correct. When you have family health issues as you said family comes first n so it should. Here's hoping you have a good result with your health problems my friend, I and many others look forward to more great content videos when you have the time and inclination to make more. You are in our thoughts and prayers, best wishes Paul Kevin.

[@dannyjensen4954]

thanks. great simple video.

[@MrDoneboy]

Good video, Paul. I hope it all works out with your family.

[@peddlereffects]

I also thought impedance was the other consideration - increasing the resistor value lowers the current consumption, but it also increases the output impedance of the voltage divider making the voltage less stable under load. Is that correct? I would love to hear your explanation, the way you talk about things makes a lot of sense to me. Hope your family members feel better soon.

[@georgejobin1744]

thanks for that vid i been wanting to know about that

[@charleskile3769]

Thoughts and prayers to you and yours.... you're an awesome dude. Thanx for the content!

[@TRONMAGNUM2099]

Excellent video

[@baldrickdaisy8982]

Thanks again Paul 👍

[@georgechambers3197]

Family always comes first. As I've said before we'll still be here, you can't get rid of us that easily. 😁 Thanks for the video!

[@BrucesWorldofStuff]

Family always comes first Always! Hope all is well soon... Thanks for the video! LLAP

[@opalprestonshirley1700]

Good explanation. Keep up the good work.

[@dinosaur0073]

Thank you 4 video. What about heat generated on resistance you didn't mention...

[@arthurfricchione8119]

Thanks for sharing not only the video but the USN decal and the American flag being a Vietnam Navy Veteran from Naval Aviation much appreciated. Stay safe and well I also have a lot of family medical issues I’m dealing with. Wife come first but trying to catch up on missed videos 🇺🇸 Artie

[@learnelectronics]

Thank you for your service brother.

[@GeekMustHave]

Nicely done, family first!! Kep broadcasting!!

[@keithking1985]

PAUL, you should do a video on the precision voltage reference. the zener reference! i think its the TL431(it puts out 1.25V very accurately and looks like a little 3 pin SMD transistor) used in power supply's with the opto-coupler, you need to set a voltage divider to set the desired output voltage. its such a cool part of load of circuits. and i haven't seen many good videos on them... will you consider it Paul??

[@fertilizerspike]

Wow resisters limit current that's groundbreaking stuff

[@vinitsingh8962]

Yeah sure, we enjoyed it. Great video man.👍

[@boots7859]

Follow-up question, in this day and age, are voltage dividers commonly used vs a discrete component? Seems like to low power devices this would be wasting energy just to get a lower voltage source?

[@harryshector]

The load resistor is in parallel with the lower half of the voltage divider. This changes the divider ratio. Voltage dividers must be designed with this effect in mind. If the load changes, a resistive voltage divider isn’t worth much.

[@learnelectronics]

true

[@RespawnRestricted]

No need to apologize

[@boxingday11]

Thanks, look after yourself 👍🇬🇧

[@jadonwilson775]

A tradeoff between quiescent current of your divider and its output resistance. Classic

[@jameskidd7906]

Hope ur familly a good health and sound

[@andrew7569]

If I were to give you my input voltage and my output need would you be willing to show me how to choose the resistors for my current and voltage needs

[@learnelectronics]

Input voltage - forward voltage = vcc. You want regular LEDs running at no more than 20mA. Ohms law v = I * r You know v (vcc) You know I (20mA) Solve for R.

[@alanholt6535]

Thank you for making videos but yes family comes first.

[@isuposs]

It would have been useful for the audience to show how the voltage changes with the load at each location.

[@aimelapierre5705]

Take of the family and yourself I will enjoy the videos when they come out

[@zyghom]

connecting mA to the power supply... brother, you were lucky your meter did survive ;-)

[@Hugatry]

Advantage of using a current limited power supply. Less blown fuses and burned components.

[@friedmule5403]

I do really hope your family gets fine!! I am wondering if lets say you has a 50V 1Vp-p ripple would a 10:1 voltage devider give 5V 0.1Vp-p ripple?

[@stevetobias4890]

That's an interesting question, I might try to simulate that on the sillyscope after dinner if I remember.

[@arthikrajbhjain2626]

Yes

[@friedmule5403]

@@stevetobias4890 Yes please do, it could mean that you could get extreme low ripple without having to invest in a very expensive high precision power supply.

[@friedmule5403]

@@arthikrajbhjain2626 Okay interesting, if so could you get nearly perfect ripple performance if your power supply can deliver high enough voltage, i.e. 100:1

[@arthikrajbhjain2626]

@@friedmule5403 Yes, but the problem would be, you need a low ripple power supply, the voltage divider is not a good way to power something, usually it is used only as signals, for example to to supply signal to the inverting terminal of the opamp to use it as a comparator

[@TheTubejunky]

Years ago I used to think resistors decreased voltage then I learned of the Voltage divider. Thanks for this "Current" information. pun intended! -=]

[@learnelectronics]

I see what you did there. Thanks for watching and being part of the community.

[@jeffvenqueleir2036]

nce and what is de formule to calculate this ?

[@learnelectronics]

R2 / R1 + R2 = Ratio determines scale factor of scaled down voltage

[@jeffvenqueleir2036]

@@learnelectronics thanks

[@SusanAmberBruce]

Family always comes first. I hope all goes well. 1

[@Okurka.]

Affect

[@bblod4896]

🙏

[@OnePotMeals]

Don’t worry about us, take care of your Mom

[@leos9865]

Family first

[@PedroCostaLopes]

If you ever read this... Best luck for your family health issues!

[@learnelectronics]

I read every comment.