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- čas přidán 3. 08. 2024
- In this video I’m showing the advantages and disadvantages of connecting LEDs in series vs parallel as well as driving them with constant voltage vs constant current.
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#Voltlog #LED #Wiring - Věda a technologie
Excellent for someone first trying to understand why TV LED backlights are wired the way they are. Very comprehensive review.
Great information. I've been using LEDs since the 1970s (when they cost several dollars each, were not very bright and only came in red), but I still learned some things about wiring multiple LED circuits that I did not know. More videos like this would be great. Keep up the good work!
thank you for your feedback!
make more videos on small circuits and concepts like this
thanks! I have plans on doing more videos like this.
Wonderfully helpful. Thank you for taking the time to use your advanced expertise to instruct at the basic level. Subscribed.
Thank you for this video. Very easy to understand.
Thanks very much for this video, I have made a few small projects with leds and this helped clarify a few questions I had. Great job explaining.
I paused the video at 27 seconds to say thank you very much sir
I was messing around with the LEDs and some of this stuff out but I didn’t know the draw backs of each design for the LEDs. Thanks for the vid, It will be helpful with my circuits
Excellent video, very helpful for beginners to understand the differences in led circuit designs. I would appreciate it if you could elaborate on the use of series-parallel circuits and how to best implement combining the two for efficiency, stability, etc. Maybe in a follow-up video?
Sure I will add the idea to the list and will consider doing a follow-up video. thank you for your feedback!
Thanks for the concise and clear explanation. Very helpful.
thank you!
Great video! I learned some new things that I had no idea of before! Thanks! 😊👍
Exceptional video. Thanks for sharing your wisdom and experiences on wiring LEDs. Just Subscribed.
This is some great info, thank you!
Very good tutorial for learners like me, thanks!
Excellent revision video. Thanks.
This one was very interesting, Thanks for sharing !
Very good refresher
Very good tutorial, thank you.
very useful video expiation. thank you.
Thx. This is what I was looking for.
Very good and a big Thank You!
Useful video 👍 Excellent
Thank you. Very informative and explicit in your explanation. If you are not a teacher you should be :)
Thanks for the informational video!
Can you please explain why the luminance doesn't drop with each LED in series due to the internal resistance of each LED ?
The whole line has a single current value, but there would be a voltage drop across each diode.
Cool video !
Very useful video.
thank you!
........ I don't care what Interpol says,
I think your a 'Top Bloke' and your teaching skills are 'Cool for Cats'.
👌👏👏👏👏👏👏👏👏👏👍🙏🙏
You're an excellent and honest instructor 💐.
Good video :D clear and concise explanations
PS: e fain sa gasesc romani care sa explice electronica :P
thank you !
Thanks for the letting us know series connection is best for connecting LED's. The only doubt I have is according to the circuit that was explained all the LEDs should be of the same color right, coz if the color of the LED change, the voltage and current vary and would it end up causing issues, isn't it?
“2010......That was 10 years ago........”
Wha?!?! How long have I been asleep? ;-)
C&D General Services two years?, I guess 😎
Damn. I learn something new today. Hope i watched this earlier
that is what I found on google "Increasing the number of bulbs in a series circuit decreases the brightness of the bulbs. ... Bulbs in parallel are brighter than bulbs in series. In a parallel circuit the voltage for each bulb is the same as the voltage in the circuit."
Nice video, question, lets say we take your scenario in series, from "time 11.45" and we connect it like that 5 led in series and we put another string also same 5 leds, so basically we get 2 parallel lines of 5 leds in series, if the voltage supply is a fixed type, does this mean voltage and amps divide or just amps divide for parallel?
Nice 👍
Thanks, now I know how to make UV-light hardening system to UV resin.
yes, it would work very well if you will use a series circuit with constant current supply.
Hi Florin! Nice video for everyone! What about both series and parallel? Best of both worlds ;)
Sure, combining the two options is often the case.
I would have liked it more if you would have used the term max forward current. A common mistake is newbies do everything to run a led at the mentioned max forward current :/ Also, a LED will conduct before the forward voltage in the datasheet. The forward voltage in the datasheet is again the max forward voltage at max forward current (and probably at a given temperature). Aka, start with the current-voltage graph of a common LED and talk about what slight supply voltage variations does with different configuration.
PS Series / same current is no guarantee for even light output. If you have a terrible batch with very different (max) forward voltages it's also likely to have different light outputs for given currents :D
you are right, thank you for the feedback.
@@voltlog Now I read it back, sorry for being harsh! Did not meant to be. Keep up the nice video's!
What if you have a box of LEDs and NO datasheet? How do you know the fwd voltage or fwd current?
Excellent - perfect for a noob - ta.
For a high power IR emitter, get an IR spotlight of the kind used with night vision security cameras and hack it to be pulsed instead of constant on.
Not sure what wavelength those would use, you would need to check that before ordering one. It could work nicely.
Can the MP24893 be used in a parallel circuit too ?
Can I able to connect 50 rgb led in single resistor?
Sir LED light get more life series or parallel
I don't get it you say the driver outputs a constant current of 1A but on your paper you write 20mA? :(
Thank you for sharing you knowledge :-)
Btw., Ohms Law is R=U/I, not R=V/I ;-)
I also use the "U" version, but in English speaking countries they mostly use "V" (which is confusing because V is also the unit for voltage).
Here in Romania, in school I was thought on using U. But often making and watching other videos changes my mindset and makes me follow a different notation :-)
Lol. I “learned” ohms law in my US high school electronics class back in 1992. (Obviously, I wouldn’t be here if I had a firm grasp of the material.) We were taught voltage was represented by E, for “electromotive force” or simply “energy”. So, BTW, Ohm’s Law is R=E/I
👍👍🇫🇷👍👍
VoltLog, do not chase likes and subscriptions with such beginner's videos as this. I know you are at a higher level!
thank you for your feedback! Although it might seem like a simple concept I wanted to make this video because I believe it could help people building circuits with multiple LEDs.
I was well aware of the concepts presented but I still found the video enjoyable and the presentation clear and concise. I do believe it will be very helpful to anyone who might just be learning about LEDs. Beginner's videos _always_ have their place, especially when they're good.
I do not like LED xD
No problem :-)