Very thank full sir.... Very very clear explanAtion sir... Its useful for my service files sir... I pray for good health and prosperity of u and your family....🙏😇🙇
Exactly the information I came here for, thank you. Took quite some googling around to get a decent explanation of why the inductor is there and how the circuit works, makes complete sense.
السلام عليك ايها الرائع والمعلم..ارجوك ارجوك في المرات القادمه ان تشرح بكثير من التفصيل المعادلات التي تكتبها ..اي ان تبين مع الحل كيف تظهر لنا الجهود والتيارات وكل وكل شيء عن طريق الارقام (وكانك استاذ يعطينا درس)والف الف شكر لك لانك جيد جدا ودمت بالف خير
Dear Sir This is constant current driver and hence for driving constant current the output voltage varies with load. If you change the load the output voltage will adjust to supply constant current to load as per design. If you reduce the load, output voltage will decrease and with increase in load output voltage will increase. Regards
@@HaseebElectronicsassalamu alaikum ....love you sir from India..... We have been getting excellent support since so long I have seen your all videos. Thank you sir
Sir, have you done any experiments with PT4115 ic? I want to drive 3V 10W LED. Input 14V. Any idea how to do? Maybe external mosfet? I'm also trying LJY5200 ic, but having problems. Can you help?
if you want to use it for LED in that case you will need to increase inductor value, for normal voltage step-down purpose, use buck regulator instead of LED driver
@@HaseebElectronics i want to use the old LED bulb charger having a typical OP of around 90 volts for powering just three LEDs requiring approximately 12 volts. sorry to trouble you sir, any other possible modification, other than using buck regulator.
Hello bro hassib, plz I need help I got r7731 smps pwm controller short , in my lab I got cr6853 and thay r same in datasheet but the problem is in startup so in oscilloscope I see pulse for 50ms then gone instead to use 220v I'm just using 14v supplying directly ic and I respect all conditions like ( I sense 0.2ohom), (100k RT), (FB) , so more info the board it has 1.5 M startup resistor, my question could I see pulse of output if I put that IC in test board, thanx our best teacher
Dear Sir, Can we convert LED Flood Street Light's non-dimmable driver to dimmable driver 60 voltage and 1 Amp DC to DC buck converter concept? I'm trying, but the LED Flood Panel is flicking. Please can get you an idea of the current adjust or voltage adjust. ❤️❤️
![[398] LED TV No Display / How to Troubleshoot, Repair LED TV with No Display, No Sound, Black Screen](http://i.ytimg.com/vi/xdJPh6Mc5Jg/mqdefault.jpg)
![[398] LED TV No Display / How to Troubleshoot, Repair LED TV with No Display, No Sound, Black Screen](/img/tr.png)
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Big like wow so beautiful wow 💖💖 Bhai Allah Pak ap ko kushe rakhe ameen 🤲🤲
Very thank full sir.... Very very clear explanAtion sir... Its useful for my service files sir... I pray for good health and prosperity of u and your family....🙏😇🙇
Exactly the information I came here for, thank you. Took quite some googling around to get a decent explanation of why the inductor is there and how the circuit works, makes complete sense.
it is my pleasure
please accept my best regards and special thanks
Wonderful explanation of theory and practical for working principle 👍
ماشاءاللہ بہت پیاری ویڈیو بنائی ہے آپ نے اللہ تعالیٰ آپ کو خوش رکھے اور مزید کامیابیوں اور ترقیوں سے نوازے آمین ثم آمین
Each time when I watch your videos, give more and more confident. God bless you
it is my please
i am thankful for your valuable words
Ustad, I really admire your knowledge. You give a great presentation. Thank you so much
Many many thanks
MASHA ALLAH awesome upload, very very informative, liked it, stay blessed, KAUP STUDIO
Wa aleikum salaam varhamthullahi Jazzakallaha khairan... Nice teaching
Thanks for sharing good knowledge my friend thanks for sharing welcome please God bless you
Powerful explaination ever based on led driver on youtube👍👍
best regards for your valuable comment
please accept my best regards
Many thanks! That tiny IC surely does some neat work.
best regards
indeed this micro and nano technology chips are wonderful
Congratulations! Very nice explanation! Just learning about LED drivers & I got this!
best regards and special thanks
Masha Alla brother 😍 give you big 👍 keep safe
May Allah widen your knowledge. Great service sir
Many many thanks
Very informative_video..thanks brother......
best regards
Wonderful job dear friend, have a happy new week!!!
Great , Great , Great 👍 ,
As expected, very nice and informative lessons.
it is my pleasure
I like haseeb electronic thanks brother stay blessed
thanks a lot
@@HaseebElectronics how to calculate isolated and non isolated transformer design pls hlp
Simply excellent! My humble thanks.
best regards and special thanks
think you so much. it great explication and moral information....5star machallah
You are most welcome
Your vids are always the best and most well explained thanks very Much for Sharing
it is your greatness
Very useful information sir thanks for sharing this knowledge to us
Most welcome
That was very good explanation
best regards and lovely thanks
Very Beautiful Upload Alwaz Big Like # 188
thanks for sharing this informative video
My pleasure
Good information
MarshAllah Allah Mubarak jazakallah khair
best regards
Good job my friend👍
nice job dear bro , stay blessed
Hello my friend.😊
Very nice!👍✨
Many thanks for this illustrations
How hard would it be to make it so it doesn't flicker?
السلام عليك ايها الرائع والمعلم..ارجوك ارجوك في المرات القادمه ان تشرح بكثير من التفصيل المعادلات التي تكتبها ..اي ان تبين مع الحل كيف تظهر لنا الجهود والتيارات وكل وكل شيء عن طريق الارقام (وكانك استاذ يعطينا درس)والف الف شكر لك لانك جيد جدا ودمت بالف خير
Informative vedeo. Thank u
Very good explanation, nice topic, informative.
thanks a lot dear.
best regards
I think i know new theory from this video.may Allah bless you!
it is my pleasure
Thankyou. I wanted to understand these led drivers
Like always - thumb up
Thx You, brother
best regards
very informative sir
thank you
Most welcome
This was so helpful, I'm actually working on a similar project. Well done
best regards
please accept my best regards and wishes
Very informative Sir
Thanks and best regards
Good Job 💕 💕
Big Like 💕 💕
fullview 💕
best regards
Dear Sir
This is constant current driver and hence for driving constant current the output voltage varies with load. If you change the load the output voltage will adjust to supply constant current to load as per design. If you reduce the load, output voltage will decrease and with increase in load output voltage will increase.
Regards
Nice job ! 👍
How can i contact to you?
Good job 👍👍👍👍
Nice sir .... Sir apne vollyball pump iron desoldring kaha se purchase kiya hai plz share sir
amazon se part number FBA_60849
ebay se weller ka DS40 (excellent but expensive)
octopart site se DS40 ki price achhi he
@@HaseebElectronicsassalamu alaikum ....love you sir from India..... We have been getting excellent support since so long I have seen your all videos. Thank you sir
Nice work
Great video Very. well explained
best regards and special thanks
Beautiful just beautiful! Thanks a bunch.
Great explanation
Great sharing
very nice
Very nice explanation in the vid my friend 😁👍
Ssuperb. thanks very much sir.
most welcome dear
Good Wishes Dear Brother
Thank you! The bulbs are very efficient, but still get very warm at the base. I wonder if they could be made to run any cooler? Best regards.
special thanks and best regards
In fact is reflection light to led make heat..and compare heat lost / u* I it be 20 % so 70..80 % becomes light......
جزاك الله خيرا
shukriya bhai
Thanks for your detailed explanation please How many watt can this circuit be able to drive?
excelent
special thanks
Thanks. Could you please go through the alternate part for the PT4554
best regards
i will see, what is is its equivalent numbers
if i found some valuable data, i will share it positively
Thank you sir
Love you
# teacher
please accept my best regards
just excellent, congrats
Good job
New subcriber sir from Philippines
Welcome! and i am thankful for checking my work
dear sir,
thanks for the video. which is the manufacturer of the PT4554D IC?
thanks
Is the 1r8 use to program the current? I need to reduce the current to extend the life of the leds
Sir, i have a question. The middle side diode is used as snubber circuit.
Full wt bro
Some of circuits have not diode between drain and the positive output line why ? thanks❤
Great upload as always
Beautiful
special thanks
bro, esa driver circuit jo 90v leds ko chla rha hai
kia hum us driver circuit ko, 60v leds ko chlanay k liye use kr sktay hain?
Sir, have you done any experiments with PT4115 ic?
I want to drive 3V 10W LED. Input 14V. Any idea how to do? Maybe external mosfet?
I'm also trying LJY5200 ic, but having problems.
Can you help?
can you please tell me the rating of the diode connected right before inductor
👍👍👍
thanks a lot
good explanation
Thanks and welcome
Sir plz led driver pe koi transformer design Kar ke bata do plz sir pq core ho
Jismai auxiliary winding bhi ho
instead of 100 volts output, what changes are required to bring down the out put to say for example 12 volts. please guide.
if you want to use it for LED in that case you will need to increase inductor value,
for normal voltage step-down purpose, use buck regulator instead of LED driver
@@HaseebElectronics i want to use the old LED bulb charger having a typical OP of around 90 volts for powering just three LEDs requiring approximately 12 volts. sorry to trouble you sir, any other possible modification, other than using buck regulator.
Very nice
thanks a lot
Plz reply
Isme 5v ya 3v fixed output lene k liye kya kru
Gud job
Zabardast
Hello bro hassib, plz I need help I got r7731 smps pwm controller short , in my lab I got cr6853 and thay r same in datasheet but the problem is in startup so in oscilloscope I see pulse for 50ms then gone instead to use 220v I'm just using 14v supplying directly ic and I respect all conditions like ( I sense 0.2ohom), (100k RT), (FB) , so more info the board it has 1.5 M startup resistor, my question could I see pulse of output if I put that IC in test board, thanx our best teacher
Nice vdo
Salaam alaikum Bhai. Do you have led bulb driver using only MOSFET no PWM if used in Philips 20 watt led bulb. Want to know ckt working.
Thanks for sharing
Thanks for the video =)
Is it programable IC?
no it is not programmable, the outer components (Resistor & capacitor) to set frequency and current are called programming components
Thanks
WaalaikumSalam wbt
What is the specification of the diode, please?
Lk 186 👍👍❤
Sir, how do I draw this type of schematic from any PCB?
please check this video. might be it may give some idea
ruclips.net/video/zQgk_1zGBts/видео.html
Thanks a lot sir ...
Most welcome
Dear Sir, Can we convert LED Flood Street Light's non-dimmable driver to dimmable driver 60 voltage and 1 Amp DC to DC buck converter concept? I'm trying, but the LED Flood Panel is flicking. Please can get you an idea of the current adjust or voltage adjust. ❤️❤️
So this is not a buck topology? 🤔
exactly it is much closer to buck topology
as buck converter most of time uses duty cycle technique
but in led driver, it changes frequency
exactly it is much closer to buck topology
as buck converter most of time uses duty cycle technique
but in led driver, it changes frequency
What is the output current?
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