How to select resistor value for LED with simple calculation (Ohm's Law)
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- Опубліковано 8 вер 2024
- In this video, I have explained how to calculate the resistance value for LEDs for different input voltage. It is very important to select right series resistor before using a LED in a circuit otherwise the LED may burnout.
I will request you to watch the complete tutorial video of the LED Resistor calculation but you can also jump to any topic by click on the following Time Stamps:
00:34 How to identify forward voltage, current rating of LED from datasheet.
00:54 How to calculate resistance value for 9V input voltage (Ohm Law).
02:21 How to calculate the resistor wattage in the circuit.
04:59 How to select the resistance value for 12V input voltage.
In this video, I have shown how to identify the LED rating from the datasheet and from that rating how to calculate resistance value and wattage required to connect the led in a circuit using ohm law for different input voltages. After calculation the resistance value we have practically measured the voltage and current value with a multimeter and compare it with the calculated data.
Here I have used a 3V led and calculated the resistance value in 9 volts and 12-volt circuit.
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Hi! For Series and Parallel LED circuit Resistance calculation please refer the following video:
ua-cam.com/video/H69xDuon7vo/v-deo.html
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How much ohms resistor should i use in white led circuit of 6 leds and 9 volt battery .
3
Gadgets Cracker *Use 1.5 watt 220 Ohms*
@@ahmedayaz1972 should i use 2 9 volts battery so that forward voltage will be of 18 volts. And then use 1 ohm 0.25 watts resistor to supply power to 6 white 5 mm leds.
Please help me.
Tech StudyCell nice 👍🏼 video
This is exactly the video I've been looking for. Thank you
You are welcome
@@TechStudyCell me also
When I start the video I forgot the time
Only one video about resistor voltage drop and current limit across the resister excellent
The world's best teacher thanks sir
Very clearly explained!
Thanks
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Simplest way of teaching thanks a lot sir
After searching lot of videos stuff. Finally find right one✨
Fantastic videos for a rookie like me, thank you for taking the time to make these videos! I'm in the process of watching all of your other videos 👍😉
Thanks for your feedback...
Very clear step by step instructions!
Thanks for the great examples!
I appreciate that you wrote down the calculations as you spoke :)
Thanks a bunch dude!
Thanks for the feedback 😊
You are too good bady thanks for explaining the resistor measures.
I was looking for exactly these calcs for a tiny DC motor application. I think this will only work for electronic loads and not any kind of resistive or power load, although a tiny motor seems like it must be purely inductive, I still cannot get anything to work for the motor. A finely organized and clear video. This should help me going forward as a noob.
perhaps you could also consider the wattage of the motor to choose the correct resistor with enough watts for the motor
Very simple explanation. good job, Conguralation.
Thank you, Thank you, Thank you..
I was looking for it...
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Indian is the best teacher., Thanks sir
Most welcome
Thank you for showing ohms law properly
Good explanation
Thanks
Nicely done man! Good video. This will help many many beginners to electricity and ohm's law. 🤘🏽😎
Glad it helped
Clearly explained and useful
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Good Simple informative
great ... thanx for the information
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thank you .i have lerned a lot.
BEST VIDEO for me, on this topic.... answering every question I ever had
Glad it helped
@@TechStudyCell
i just realized I have another question
nice , thanks dear
Excellent, informative video. Great detail but not overly complex. Audio very easy to follow.
Thanks for your feedback...
Very well explained.
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Simple and clear explanation. Thank you for such a great video
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Rest in peace for those leds which i burn for over voltage.Btw thanks for the video.
Great video ...
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I watch so much of videos but i cant understand but after watching your video i understand thank you
Thanks for your feedback
Super more information send sir . Good teaching and good information tq
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Excellent presentation, I really like the way you presented and explained everything!
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Very nice explanation, this video cleared my doubts. Thanks a lot. Keep posting such videos.
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very useful
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Learn something from you thank you..
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Thank you brother véry useful the lessons 3&4 RGB led how to Assemble.thankyou.
That is a really good explanation and you back it up with the practical scenarios.
Thank you so much this video is so helpful
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I expect this information from long time. Thank you sir
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Thank you sir ,for a simple explanations. With detail experiment.
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Nicely explained
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Explanation is very easy to understand 👌👌👌
Thanks for the feedback
Great video! Thanks.
Glad you liked it!
You made understanding this Math Very Easy and I appreciate Your doing so!!!
I'm just trying to make a few things with LEDs in them and I had No Idea how to figure out what resistor I needed to make a small lightning cloud using LEDs and a 9v battery.
Now I know!!
It's pretty obvious that I don't know anything about electronics but you made learning easy!!
Thanks Again and Happy Holidays!!
good simple explanation that i have been searching for ! thank you....keep going !
Nice way of teaching
Thanks..
I like your calculations & the schematic diagram. Well illustrated & understood show.
Thanks for your feedback...
nice video
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Useful video
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Good knowledge, better explanation, and best demonstration👌
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Very good teaching. No complexicity. thank u
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Nice man
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thank you for good and underdtandable tutorial,, God bless
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Nice
Excellent video , sir.Thank you
Thanks for the feedback...
You shoud be showed power rating here. P=VI is important as well as resistance and current ratings. Thanks for sharing.
Very clear explaination sir. Thank you.
You are welcome
Very helpful. Nice explanation. Thank you 👍
Welcome
Next Video Request: How can we add led+resistor in a existing schematics?
Fantastic video bro
Thanks
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So nice
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Awesome bro your videos all of them are very useful to learn please doing different type of tiny switch fuction in pcb like TNY275pn etc.. Thanks
Thanks. It explained a lot to me.
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Clear explanation. Good.
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Today i learn something.. Thank u
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Thank you for your time and effort in making this video. It was very helpful :)
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good vedio
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like. . . do more videos. . . . .
sure
Thank you for a great video, very well explained, kind regards Mike
Glad it was helpful!
Great thank you for the free school lesson
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Thank you sir !! Very clear, it really helped
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Great demo.....
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Nicely explained. Keep it up 👍
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Thank you. This was well presented.
Thanks for the feedback 😊
Very good. sir 5V 2A ki sply hai or 1 Watt ki smd led light hai kitne ohm ki resistor chahiye?
Excellent video.... :)
Thanks 😊
This is called Real Practice
Good explanation if you explained about watt also it could be complete and more helpful anyway thank you
Awesome
Excellent video. Does it matter if the resistor is placed at the anode of the LED? Or is it common practice to place the resistor at the cathode of the LED? What would be the reason for either? Cheers
To summarize to see if I understand - So if I'm using a 9v battery and a 3v LED, there's a difference of 6v. If I divided my voltage difference (6) by my amperage of 0.03 (30 milliamps or 30 thousand) = 200. So, then you want a resistor that is at least 200 ohms but not much more. A common resistor in this range is the 220 ohms resistor.
correct but 30 mA is rather high....better to a max of 20 to 25 mA
Too good bro thank you very much yar plz
Ese hi video bnate rhe
thanks for your feedback...