{925} LED driver circuit explained
ฝัง
- เผยแพร่เมื่อ 6 มิ.ย. 2024
- in this video number {925} LED driver circuit using LIS9412, i explained Non-isolated step-down LED driver controller. Patented CCM working mode, Feed-forward current sampling without burning lamp beads, Over-temperature current foldback function, The most streamlined system structure, No input/output electrolytic operation, Input / Output Voltage "Zero" Distance, Integrated high-voltage start-up and high-voltage power supply functions, Integrated leading edge blanking (LEB), Integrated inductance compensation function
overview
LIS9412 is a control chip dedicated to LED constant current drive. It is suitable for step-down non-isolated applications. By adopting a number of patented control technologies, the system architecture has been simplified to the greatest extent. LIS9412 works in the inductor current continuous mode, no output filter capacitor is needed, and the ripple current of the load can still be kept at a low level; at the same time, compared with the current discontinuous mode, the peak current is smaller and the effective current is smaller, so the device loss is lower. The system can easily reach an efficiency of more than 95%. LIS9412 adopts the patented output constant current technology to ensure that the output current does not change with the inductance and the voltage of the LED light string, and achieves excellent load regulation. LIS9412 integrates high-voltage start-up and high-voltage power supply functions, without the need for start-up resistors or power supply windings. LIS9412 also integrates complete protection functions, including cycle-by-cycle overcurrent protection of input current, open-circuit protection of current detection pin, IC over-temperature regulation function, and short-circuit protection of output terminal, etc.
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00:00 LED driver circuit explained
01:02 LIS9412 led driver ic datasheet explained
01:24 CCM led driver circuit diagram
01:53 how LED circuit works - วิทยาศาสตร์และเทคโนโลยี
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Good job Sir..
You are not just teaching the basic.. You are teaching how it works..And that is why you are the best...👏👏
Keep on uploading Sir..thank you.always watching from Philippines
best regards and special thanks for your worthy words for my efforts
The best teacher that i ever subscribe here in youtube, i learn electronics a lot from your videos , keep uploading video sir, thank you so much.
Congretulations. Thank you very much. I have a problem with these circuits. İt must be very sensitive nr. of series LEDs ,and current.
I have many ceiling led lamps 32 w, 1m long.,broken. I bought from market these adaptor (100-124V ). When I mount LEDs are blinking. I tried to change capacitors and resistors but I have been unsuccessful. Can you say me something?
I'm impressed at your knowledge and ability to understand so many languages. Thanks for showing!
it is my pleasure
كالعاده في القمة استاذي الفاضل اشرف شرح وافي وكافي جعله الله في ميزان حسناتك.....ندعمك بكل ثقة .....❤❤❤❤❤❤❤❤
Excellent way of teaching and clearing the basics. Wonderful experience.
Simply great!!!! Thank you.
Hello Mr. Haseeb.
I have seen your video and even though it is somewhat chaotic and your usage of the english language is not a 10/10, I must say that it was very informative.
Several other comments also mention qualitive aspects of your content.
Thank you! I might subscribe to the channel.
Excellent explanation. The new Chinese bulbs are even simpler, just the control IC and the LEDs direct to 220v (in my region), no capacitor, resistor or coil.
The great feature of all those type of circuits is their hackability. I have been tweaking the current sensing resistor in all my bulbs at home to reduce to half or less the current. Higher resistor, less current, a lot less heat, less stress on LEDs (they never burn now) and you get a very reduced electrical bill with still a lot of lumens.
This works great for ceiling lamps with many bulbs. Where before I had 3x6watt bulbs, now I have 4x2w modified ones. Less than half wattage.
In there stock form they get very warm. Good to know about the modifications.
very nice explanation, Thank you. May be you can teach us Chinese also,👍
Wow you explain very well. I had no idea about that circuit and now i understand. Thank u so much.
The only TH-cam channel that has Persian subtitles
it is my pleasure
Great video sir. I am very amazed with this video. You only not show how thing works, but also showcase your knowledge of different languages.
It's amazing way you are explaining any circuit.We just feel like we are also flowing like current in the circuit.Thank you very much sir.Have nice time ahead.
It's my pleasure
best regards
You make it so easy to comprehend. I'm surprised there is now that simple of a driver device for LED bulbs. That explains how some I've seen are almost as inexpensive as the old incandescent bulb we use to use. 👍
best regards
yes dear i try my best to share the working concept, so that if we understand the working phenomena of any circuit, then we can deal it like a piece of cake otherwise the electronic circuits are jungle
Very in-depth. Thanks
very detailed explanation, especially using data sheets, this is very helpful.
Thank You very much!!! Peace and good to You!!!
Thank you too!
Great job...thanks 👍
Nice explanation. Knowledgeable and informative vedeo. Thank you so much.
You are most welcome
Eagerly waiting 😊
Very nicely explained. Thanks.
Most welcome!
Very good explianation.many thanks sir.i am from sri lanka.
You are most welcome
Shukran nice job keep it up.
best regards
Great timing - I just took my spiral LED bulb apart yesterday to see if I could figure out why it failed. Amazingly I have 2 of the same bulbs that failed after 2 years and the boards inside are somewhat different from each other, different LED drivers too ... go figure. I love these bulbs (ANMIEN 120w) but now they are hard to find. 🙁 This is a great explanation of how the circuitry of an LED light bulb works. No more basic lightbulbs 😅 Very interesting lesson nonetheless, thank you!! 🤓 Just curious if there is a way to test the LED driver IC?
Very good and useful information sir thanks
So nice of you
Very nice sir.
thanks a lot
You are the best
Excellent thanks for sharing
So nice of you
very interesting video 👍👋😉
it is my pleasure
Ver good sir
Thanks!
special thanks and best regards for your valuable support
Sir I've seen some tutorial videos on smps sortly, where the controller ic got damag as we see sometimes, in the video the tutor shows how we can use an external swithing module and the smps will start working. The module comprises of a controller ic, a switching mosfet and sometime a feedback section as well. One thing that hits my mind is that how one can use such module to power up a dead smps without caring of the switching frequency, like they don't even bother to think about it, just a module connect a couple of wires and it goes. The smps transformer is designed to work on a specific frequency and there's a bunch of calculations while designing it. How it's possible? I want your explanation and request to make a video on this topic. I shall wait for your response. Thanks!
Emeğinize sağlık efendim. Sağlıklı günler dilerim.
Allah sizi ve ailenizi korusun. Kurban Bayramı Mübarek
I will hope your next Explanation soon. Thank you Sr...
Always welcome
Sir, let me ask you a question. They put coils on both sides of induction heaters, some call these coils as choke coils. Is the task of these coils there to dampen the reverse emf, kickback spike voltages created by the voltage induced on the heater main coils? I thought it was called choke coil, I thought it was filtering the incoming shocks. Thanks.
Is this "LED driver circuit" possible to modify to use as a DC Power Supply (5V or 12V) ?
Thanks brother
Welcome
Thanks for sharing
it is my pleasure
The Genius !
thanks a lot bhai
Is there any way to search this type of drivers by parameters or get a list of this type of drivers IC ?
Thanks dear...
best regards
Hi, which component raises the voltage to 300v? its usually 220v or 170v.
Super
👌👌👌👍
elimde 30 kadar 9w led ampul var
üzerlerindeki sürücü devresi bazılarında 7 bacak bazılarında 8
bu devreyi sökmeden sağlam olduğunu nasıl ölçeriz .. böyle bir videonuz varmı. teşekkür ederim
Sir, you have explained very very deep theory but i want to know its Purpose and its faults and effects of faulty Driver IC.
thanks, could you make a video of diagnose using oscilloscope please
👌👌🌹GOOD TICHING KARTE HO AP THANKS 👌🌹💖😂😆
thanks bhai
Ve aleykümselam. Tkank you.
Sir if there are possibilities plz explain about the ic ir2156s smps power supply..
❤😊
Salam haseeb bhai, can you pleas emake a video about practical design of amplifier using bjt and mosfet with calculations please?
I think freewheel diode should connect after the inductor. You draw before
Sir plz a video for inductor calculation for this driver
I am looking for datasheet of KP12653SP IC for led driver can you help
😍😍😍😍😍😍😍😍😍😍😍😍😍😍
हिंदी में समझते तो बहुत अच्छा होता,🙏🙏🙏🙏🙏🙏🙏🙏🙏
उर्दू/हिंदी भाषाओं में मेरे वीडियो मेरे दूसरे चैनल (हसीब इलेक्ट्रॉनिक्स उर्दू) पर उपलब्ध हैं।
www.youtube.com/@haseebelectronicsurdu
Does anyone know about the icn2589
Sir mera question ye hai ki ac wale led bulb me normal12v ya 5v wale smps se kyu nai chala jata... isme kyu led ko series me connect kar k 80v ya 160v me chalaya jata hai
Sir i have one doubt op amp I can send ic photo
Yes you can send on 00962-79-5324272
or gmail ashraf4ta4
MT 9526 SF pr vedio bnao sir
Your are multilingual teacher, you know Chinese language!
I don't think there may be any questions after that.
thanks for your valuable words 🙏
I have one. To reduce the current does one decrease or increase the current limiting resistor.
Yar ap PhD lagtay ho.😂