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)
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!
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!
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.
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!
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.
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.
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.
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"
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!
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.
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.😀
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.
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.
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.
@@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.
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.)
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.
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. 👍
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
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
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?
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.
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?
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?
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.
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.
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?
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
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...
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?
Because he ain't a typical indian youtuber
Because not everyone is from Down Under. :)
@@ceejayc6502 New Zealand to be specific, aussies and nz’s sound similar
instablaster...
you forgot the ads
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)
Great video! I also appreciate the no annoying music factor and no wacky dubbing accent. I subscribed.
Dude… You are hilarious and a very refreshing addition to TH-cam electronics community!!!
The only channel where I actually enjoy the JLC ads and the cows 🤣
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!
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!
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.
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!
For people interested in the “hard-core math” for calculating the current: “voltage / ohm”
Was just about to say that.
Whoa there egg head, slow down and explain it using simpler terms
Haha yeah I was thinking that too. This was a great video, but there was no need to input that into software calculator.
Ps I'm not yelling lol😊
That was very top secret info you leaked out there bud. 😡
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.
The folded-wire induction canceling trick was a new one for me. Seems easy enough to test with a good quality LCR meter. Thanks!
Excellent video. I didn’t know what a shunt was and your video explained it clearly.
I've been playing with electronics all my life & still learn some cool stuff from your vids. Definitely worth my time. Thank you.
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.
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.
Well done!! I got nowhere watching other videos on this subject. Finally -- with this video -- I got it. Thank you!!
Love this. Not just what to do but also how it works! Relates concept to theory and practice. Bravo!
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"
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!
So in the commercial shut they are using different material with different resistivity per volume than copper, right?
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!
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.
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.😀
@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!
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.
This was an incredible video! Thanks for posting. Clear explanations and so much knowledge packed in.
Very informative! You did a fantastic job of explaining... I especially appreciated the tip on eliminating inductance.
Just perfect. You cannot do that better! Congrats and thanks.
Videos like this inspire me to learn more about electronics
This is really a clear presentation of shunt. I enjoyed it. Thank you!
thanks for the clear explanation, i have never really understood shunts.
Thanks for making such detailed tutorial s, World needs teacher like you to resolve complexity of teaching!!!
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.
shunt using copper wire is very gud concept for me ,thank u very much sir
excellent.simply superb. if there are people like you so many students will be interested in physics ,engineering.
I wish our science classes had content like this
Two more wishes left out of three.
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.
Great video! Didn't know you could measure amps like this. Learned something new. Thanks!
Usually I skip the sponsored ads ...... UNLESS ..... they are well thought out :)
It is best to use the shunt on the ground or "-" side of the circuit. Where voltages are lowest.
The voltage is measured across the shut - so it will make no difference.
@@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.
You make it so easy to understand, I will be watching more of your videos
As others already says in comments below, great video, perfect explanation.
Hope you’re doing OK haven’t seen any contact from you in a while. Always enjoy your channel! Much love from the USA
Appreciate the concise explanation and demonstration. Love it.
An excellent presentation and explanation as usual... WELL DONE!!! 10/10
second that!
Very interesting and very informative video. Thanks a lot 🙏
I forgot what shunts were even for since my apprenticeship. Refreshing!
Very clear and concise explanation and demonstration. Thanks
I have said it and I will say it again. You are top notch brother ! Thank you
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.)
You sir, earned a subscribe for concise and really simple explanation.
Thank you for this, you're a great professor :)
i have tested wire resistance with internal resistance meter (YR1035+) and it works great, even can test 5mohm resistance
Wonderful video. Thank you so much for helping us.
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.
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. 👍
Very clear and practical. Thank you
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
Question: might be stupid but since you are measuring voltage drop it does not matter what direction current flows right?
Thanks for the simple but complete explanation
Great presentation. Very informative and relatable material and examples.
First time viewer. Loved the sponsor segway!! 😃🤣😆😎
Excellent Vid. I thought Shunts were something magical for years.
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
Do you have a video on the shunt in use with a volt and amp meter; how is it set up and used?
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?
I liked the video.
Do you have one where you build a circuit that used this with a read out display
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.
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?
Very good explanations, reminds me of my 100AMP schumacher 12 volt load battery tester with glowing red hot shunt.
Great presentation. Please do one on mosfets. I've seen 20+ videos but don't understand what they are for.
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?
Good video, now i know what a shunt really is.
When the wire is wrapped around the pipe, won't the wire make contact with itself and change the resistance?
No. It's an insulated copper wire , the wire is silver colour and the golden colour is the insulation.
@@bijonmathew1001 Thanks, so he must not have used the wire he sanded off at 8:22.
@@chuckcarlson7940 if you look closely he insulates the sanded part again using black heatshrink tube .
Love your simple way of explaining... nice cows by the way
Thanks ;)
What is the song clip at 4:00 from? I have spent the last 20 minutes trying to remember where I know it from.
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.
Thank you for this informative video and well-explained subject. I liked your video. Keep up the good work. Thank you again for sharing.
Wow, you do a great job explaining this stuff. Thanks!
Why dont we can just meansure current accross the wire without shunt? Isnt that same?
Or to avoid the short circuit?
Excellent! Loved seeing the Cows too!
Basically 4 wire resistance measurement is the same as this?
Really great video. You explained shunts way better than my electricity textbook. Thanks!
Very good explanation
I like the double wrap coil. I had not seen that before and did not think of it. I was thinking to make a zig zag out of it.
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.
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?
Why we call it shunt if it is connected in series??
excellent video and the advertisement was watchable.
Every time he say The Word "Pretty Cool,Right" Wake me back from my Imagination😅
Your meter could get the resistance of those if you use ohms law, v/i=r
Very cool!! Even the commercial was entertaining! :D
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
Yeah, this is good vid straight to the point.
If you made more current go through the wire maybe you would make a more accurate one shunt?
Thanks for explaining this to me!!
Can I use any copper wire to achieve that?
Well done!
A great and entertaining explanation as usual!
can i use this to meassure current on the surface of water ?
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...
First time i know that and how my power supply calculate amps thanks , plus i like the nice 😂 math rocks