What is a SHUNT? (Used to measure Current) + How to make a DIY version

[@Gereon_]

no annoying music, clear voice and not someone who tries to just show off his skills. Why cant every educational video be like this one?

[@uzairbukhari99]

Because he ain't a typical indian youtuber

[@ceejayc6502]

Because not everyone is from Down Under. :)

[@joshcook8586]

@@ceejayc6502 New Zealand to be specific, aussies and nz’s sound similar

[@felipejorge3351]

instablaster...

[@shaystern2453]

you forgot the ads

[@ant6456]

My father in law had a PHD in electrical engineering. He has passed away. You are now his replacement as my teacher . Thank you. Keep it up and keep breaking it down for my slowness . Thanks so much. Loved the cows. ( daisy)

[@christiannielsen3863]

Great video! I also appreciate the no annoying music factor and no wacky dubbing accent. I subscribed.

[@hullinstruments]

Dude… You are hilarious and a very refreshing addition to KZbin electronics community!!!

[@RaffaelePignataro]

I was searching how the hell a shunt resistor helps me to undestand how much current is in the circuit, I searched for hours and found only very hard to undestrand articles or unuseful videos without any pratical example. finally with your video and your pratical examples I undestood the theory. Thanks a lot!

[@kurtilingus]

Your sense/delivery of humor is so outrageously dry it gives me flippin' nosebleeds... AND I ABSOLUTELY LOVE IT. A+ on the high quality tutorials for us forever-novice-amatuer electricalonicsicity-tinkerers out there on the merits it has unto itself, just so you know!

[@Powerstroke57]

You are a very well trained young man, and a great presenter! I spent my whole academic career in electronics in the late 70's. Wish you tube was around then.

[@JayJay-ki4mi]

The only channel where I actually enjoy the JLC ads and the cows 🤣

[@johnhoward7023]

A truly excellent presentation and nice trick to avoid making an inductor. EE education is 40 years old and I needed exactly what you covered here to remind me how to do this. Really appreciate your taking the effort to do this video!

[@fr3ddyfr3sh]

For people interested in the “hard-core math” for calculating the current: “voltage / ohm”

[@janbroz4681]

Was just about to say that.

[@Sarcastix7]

Whoa there egg head, slow down and explain it using simpler terms

[@jessecampbell4580]

Haha yeah I was thinking that too. This was a great video, but there was no need to input that into software calculator.

[@STOPTHEHATE70]

Ps I'm not yelling lol😊

[@JusticeAlways]

That was very top secret info you leaked out there bud. 😡

[@thed8229]

I've been playing with electronics all my life & still learn some cool stuff from your vids. Definitely worth my time. Thank you.

[@Miata822]

Note that commercial high amperage shunts usually have a crude dut in them that looks like it was done with a band saw. That is the calibration cut. With a known current passing through the shunt a notch is cut until the correct voltage is read across the shunt. This allows a very accurate shunt to be made with imprecise tools.

[@josepeixoto3384]

And the opposite also, which is *adding a small blob of solder,or two,* to the wire to make it less resistive (smaller resistance, more amps); we can see that, inside many multimeters on the wire that is actually the Amps shunt.

[@Ed-eq8ui]

Well done!! I got nowhere watching other videos on this subject. Finally -- with this video -- I got it. Thank you!!

[@lloydgarland4667]

A very simple concept, yet so many people new to electronics get confused by it. This is an excellent video, well presented and perfectly explained - brilliant! See guys? Electronics doesn't have to be complicated!

[@alexrXX]

Perfect educational video. Understood everything; not like the other shunt video I just fast forwarded as the presenter fumbled through his description. Top job. Thanks.

[@sincerelyyours7538]

The folded-wire induction canceling trick was a new one for me. Seems easy enough to test with a good quality LCR meter. Thanks!

[@nitinkumar29]

So in the commercial shut they are using different material with different resistivity per volume than copper, right?

[@Jnglfvr]

Thank you for this demonstration. I tried it myself and found a similar degree of error with my homemade shunt. One observation, however, that may improve your result is at 9:23 where you have the DMM set on the volt scale. This is a rather crude scale for this application. It would have been much better to use the more accurate mV scale for such low voltages.

[@roberthorwat6747]

I can't thank you enough for taking the time to make this video. Shunts were kinda glossed over and we had to move on (or I'd missed an assignment and was on catch up, too long ago for me to remember exactly which (probably the latter). A mystery beautifully solved after all these years.😀

[@squatrano]

Love this. Not just what to do but also how it works! Relates concept to theory and practice. Bravo!

[@TechieTard]

OMG YES! So I was out in the field milking cows, when I saw three of them in a configuration that reminded me of a transistor. Suddenly, I remembered and said to myself "Buggers! that's right, I need to order that circuit board for my Automatic Top Off PCB"

[@kukulcangod1]

Thank you, that was a very clear explanation amongst all the “jackassery” of others making cumbersome to grasp what it is (yes I made that word) and I loved your nerdy sense of humor, it is so flat line that is what makes it funny.

[@YoutubeSupportServices]

@5:45 I would like to point out that though your meter is "OK", it's one constant over, and one vowel off, from being AWESOME!

[@MrBluntNose]

This was an incredible video! Thanks for posting. Clear explanations and so much knowledge packed in.

[@davidyoung1610]

Excellent video. I didn’t know what a shunt was and your video explained it clearly.

[@arthurmorgan8966]

I wish our science classes had content like this

[@anwarigroup]

Two more wishes left out of three.

[@stco2426]

Nice. I've been wanting to find out how a shunt works to measure current, such as in camper electronics and this helped loads. Thanks!

[@ampedandvolted]

Great video! Didn't know you could measure amps like this. Learned something new. Thanks!

[@NorthernKitty]

Very informative! You did a fantastic job of explaining... I especially appreciated the tip on eliminating inductance.

[@acmefixer1]

Any conductor or resistor that is put in parallel with an existing resistance is shunting current around the existing resistance. So the word shunt is used in other places, too.

[@derofromdown-under2832]

An excellent presentation and explanation as usual... WELL DONE!!! 10/10

[@Bennyboy-dog]

second that!

[@hedgemcnorry9459]

Videos like this inspire me to learn more about electronics

[@georgekot6377]

Usually I skip the sponsored ads ...... UNLESS ..... they are well thought out :)

[@moinshaikh6684]

Thanks for making such detailed tutorial s, World needs teacher like you to resolve complexity of teaching!!!

[@bocasdeltoro8670]

My instructor 42yrs ago was a really fancy guy. He used terms that were not in the book and explained everything in percentages. By the time circuit analysis class came around next semester I was totally bewildered. Thank God for Fortran. It came naturally. But here I am again. Now it's diy solar energy.

[@OffroadMXbohemia]

As others already says in comments below, great video, perfect explanation.

[@jthai6149]

This is really a clear presentation of shunt. I enjoyed it. Thank you!

[@damienmilk6309]

thanks for the clear explanation, i have never really understood shunts.

[@srikanthtupurani6316]

excellent.simply superb. if there are people like you so many students will be interested in physics ,engineering.

[@dalenassar9152]

It is best to use the shunt on the ground or "-" side of the circuit. Where voltages are lowest.

[@vizionthing]

The voltage is measured across the shut - so it will make no difference.

[@dalenassar9152]

@@vizionthing I saw an entire video on this..don't remember where...but, I thought the same thing as you did...the explanation is subtle but significant. Info should not be hard to find...I will look.

[@Leo-gt1bx]

Ok so I need to make a 100A 75mv shunt for a red and blue led digital display. I will never need that high of current. How do the shunts vary when it comes to current handling capacity at 75mv?

[@hullinstruments]

Hope you’re doing OK haven’t seen any contact from you in a while. Always enjoy your channel! Much love from the USA

[@sand0077]

I've a question regarding my Crown DC 300A amp, batch DCA-39, serial #13779, sequence #0204. Using my Peak Atlas DCA55 and measuring the 2N3773 power output transistors in my Crown DC300A amplifier out of circuit, I'm finding a few that read 'resistor shunt between B and E/ HFE not accurate due to B and E resistance'. These transistors are unmarked and the schematic indicates a 2N3773 should be there. What reason is such a transistor used and what was it attempting to accomplish? Another question. When powering the same amp on a dbt, sometimes the bulb remains bright until I power it off and on a few times then things stabilize and the bulb glows then goes off normally like it should. Then measuring output off set with the gain set to minimum I'm seeing 0.0mv, that's good. But when the gain control is moved to the half way mark so I can adjust the input offset, the readings are all over the place and can't be adjusted with the input offset trimmer. Everything appeared fine a day before when I was able to obtain 0.0mv for both input and output offset, running the amp for over an hour with stability. The next day when powering on, the input offset readings were erratic.Very frustrating and cannot pinpoint what's happening so any insight into what's going on would be most appreciated, thank you!

[@BrendonHoppy]

You make it so easy to understand, I will be watching more of your videos

[@Robbrown92]

How would we be able to measure the current of for example a 11-15v source ? Im trying to make a shunt for a car battery and read the data with an esp32.

[@frankharald5917]

Just perfect. You cannot do that better! Congrats and thanks.

[@raindropsrising7662]

Appreciate the concise explanation and demonstration. Love it.

[@samuel_towle]

Also consider that bending the shunt wire back and forth will increase the resistance of the wire and change the value of the shunt resistance. Temperature of the wire will also have a effect on the resistance of the shunt.

[@SureshKumar-nk2ok]

shunt using copper wire is very gud concept for me ,thank u very much sir

[@Hamza-zz3zc]

Very interesting and very informative video. Thanks a lot 🙏

[@1diotwithideas]

Question: might be stupid but since you are measuring voltage drop it does not matter what direction current flows right?

[@rajusiramdas1748]

Shunt Resistor connect only battery negative side... Is it Correct???????????

[@BuildingbyNature]

Really great video. You explained shunts way better than my electricity textbook. Thanks!

[@lunaumbra5179]

I have been looking for a video like this. I've got a solar camper van setup and just purchased a 300a shunt. I am glad I now understand how it works. But how does it measure both charging and discharging??? I've got my shunt connected to the ass end of the system, last component in negative rail. Plz help! I love learning

[@stupidbrick9460]

Ok what am I missing because I’m still confused. I select mV DC to read across my shunt and get a read of 5.6 I was told this is my resistance tho, so I take that number and divide what I get reading V DC from my DC output point, and that resulting value is my amperage? Any help, helps

[@chibuzoeze4225]

Can I use any copper wire to achieve that?

[@rimmersbryggeri]

Basically 4 wire resistance measurement is the same as this?

[@oscarmendez590]

Very clear and concise explanation and demonstration. Thanks

[@korishan]

First time viewer. Loved the sponsor segway!! 😃🤣😆😎

[@mdunbar008]

Ok, if you know the actual current passing through the shunt and the actual voltage drop, could you not use that to calculate a corrected resistance of the shunt and reduce the error?

[@Dinco422]

Thank you for this, you're a great professor :)

[@ansonkiek6471]

Hi , I have battery discharge machine which is release charge for 30A , but I don’t have current shunt meter with me. So I try find some relate article but my case is different , my machine charge 30A based on my programming, the connection should be + I and -I connection both lead of shunt resistor and my meter connected parallel too. Is this correct ? Please advise thanks

[@SirTragain]

Do you have a video on the shunt in use with a volt and amp meter; how is it set up and used?

[@meowcula]

I have been using the dale axial 1% shunts myself, but suppliers like mouser and digikey also has higher precision ones available though they are pricey at about $10-$15 for a 0.1% precision shunt. As always - use what suits your application. There are ways to compensate for the 1% tolerance also, particularly easy if it is just an offset adjustment in software. The tolerance of the component in that case is less important than the stability of its value (i.e temperature etc.)

[@OneDamNote]

Any ideas on turning a 1 amp DC current meter into a x3 amp current meter? Is it as easy as finding the shunt resistance for the 1 amp reading, and tripling the shunts resistance? I have a +70v DC source with an avg operating current around 1.71.7 ampere. Input voltage before the transformer is is fused at 3 amps.

[@moisty254]

I forgot what shunts were even for since my apprenticeship. Refreshing!

[@brianc6739]

Wonderful video. Thank you so much for helping us.

[@MrJoefung007007]

Why cant I just measure the volt drop on the load to calculate the amp? Many thanks

[@chuckcarlson7940]

When the wire is wrapped around the pipe, won't the wire make contact with itself and change the resistance?

[@bijonmathew1001]

No. It's an insulated copper wire , the wire is silver colour and the golden colour is the insulation.

[@chuckcarlson7940]

@@bijonmathew1001 Thanks, so he must not have used the wire he sanded off at 8:22.

[@bijonmathew1001]

@@chuckcarlson7940 if you look closely he insulates the sanded part again using black heatshrink tube .

[@rosshollinger8097]

So, what about 120VAC with a 0-500mA vintage analog meter that shouldn't be measuring more than 350-400mA through a dim bulb tester with two 60W bulbs?

[@harishaaaaa]

Why we call it shunt if it is connected in series??

[@drruncmd]

Also not to forget that clip lead wires also have an effect on overall circuit resistance. Again you can set the circuit up, place a multimeter accross a clip wire lead and this will give you its resistance value also. This is if the circuit requires precision current calculation, if not, then no need to bother.

[@mfilippos]

What is the difference between a 40A DC shunt and a 40A AC.?

[@zawilious]

can this be used to measure AC 50hz current ?

[@biggusmaximus1651]

Why dont we can just meansure current accross the wire without shunt? Isnt that same? Or to avoid the short circuit?

[@deankay4434]

Honestly, I have not seen all of your videos :( But using ohms law and a common series circuit used in an automobile, perhaps like you lamp & shunt, but a shunt is not required until you want resistance. I had taught for GM at a time when diesel techs working at city garages, required them to prepare and pass test to be certified. Why diesel? Well mostly city hall never has money for new equipment and older diesel engines used little to no electrical. Not true today, but an example. As you know, not everyone with a digital meter are comfortable on what they are seeing. Every wire, connector, fuse, switch, device and ground has voltage drop. Measured and written down comes close to ohms law as compared to the battery available. Nice job on explaining shunts. Thanks

[@eatcode]

What is the song clip at 4:00 from? I have spent the last 20 minutes trying to remember where I know it from.

[@infinix_es]

what about 4 wire method with an lm317?

[@JawadAhmadsahibzada]

i have tested wire resistance with internal resistance meter (YR1035+) and it works great, even can test 5mohm resistance

[@okaytree7711]

I feel like things werent explained enough. Especially with why the 10 ohm resistor burns out but the 10mOhm shunt does not. Was it due to the "current rating" of those components? Maybe I assumed that just because the resistance is high that means it could handle more current ...idk please help. I guess it also helps to understand how power resistors work...

[@greenbeginner9221]

Some key questions you did not cover: What is the purpose of a shunt? Is it just to have something laying around to measure for the fun of it? Does it actually do anything in a circuit and if so, what? Is a shunt just another name for a resistor? Since you started off by saying that I sent to something we can measure with, what is it that could be in a circuit board that would measure something and if it did measure it, what would it do with that information?

[@drihtamnetu]

You sir, earned a subscribe for concise and really simple explanation.

[@home_Grown_studio]

I have said it and I will say it again. You are top notch brother ! Thank you

[@rotem2116]

can i use this to meassure current on the surface of water ?

[@RadikalPolitik]

Great presentation. Please do one on mosfets. I've seen 20+ videos but don't understand what they are for.

[@Just_An_Idea_For_Consideration]

QUESTION: I just watched your video called “What is a Shunt?” from 2 years ago. I would like to create an array of shunts that could be monitored and logged by a computer or arduino / raspberry pi, etc. The purpose is to create all of the shunts as an inline plug for a solar panel array, so that i can see the live data output from each individual solar panel and also log the data with tine stamp for future review. Could you create a video on how to do a project like this, or direct me to an existing solution if one is already available. I have been searching for weeks, and I am not sure what search terms to use for this type of DC logging device. Thank you for any ideas, links, or suggestions. Note I am posting this question in the shunt video and your most recent video so you might see the question. thanks

[@DustinWill]

Great presentation. Very informative and relatable material and examples.

[@ytrew9717]

stupid question (sorry) but why using shunt resistor in a circuit to measure the voltage and by deduction the amp instead of having a device that simply measure the amp directly?

[@damensutherland7081]

If your using 2 v at 100 amps how would that work

[@MulunehMuluneh-m1o]

Every time he say The Word "Pretty Cool,Right" Wake me back from my Imagination😅

[@MiracleMAX]

Well done! A great and entertaining explanation as usual!

[@angryman3317]

Just stumbled apon your channel, absolutely stoked. Your explanation of the topic is beautifully clear, very informative. Thank you mate. I'll be here more often. 👍

[@psmith5237]

Great video, thank you. If we take an existing circuit (some commercial electronics) can we pick any resistor in the circuit and use it as a shunt? Does it make any sense to make current measurements in such a way?

[@olaseniolaosebikan9231]

How to use a shunt to measure my solar panels current, thanks

[@hadjimouh8617]

First time i know that and how my power supply calculate amps thanks , plus i like the nice 😂 math rocks

[@LordGryllwotth]

If you made more current go through the wire maybe you would make a more accurate one shunt?

[@prashanjitghosh5861]

Love your simple way of explaining... nice cows by the way

[@Schematix]

Thanks ;)

[@mktwatcher]

Excellent Vid. I thought Shunts were something magical for years.

[@Cpt_Dave]

Thank you very much. You've helped me a lot!

[@phonotical]

Your meter could get the resistance of those if you use ohms law, v/i=r

[@Bonjour-World]

Should have included 'how to determine the resistance of a shunt'. Shunt resistors are specified by the maximum current and voltage drop. The resistance value is given by the voltage drop at the maximum current rating. The voltage drop at maximum current is typically rated 50, 75 or 100 mVolts. For example, a shunt resistor specified by 10 Amps and 75 mVolts has a resistance of 75/10 = 7.5 mΩ.