i am still trying to figure out the problem. and solve it. i am trying my best to produce the possibly best but i am also trying to enhance the video quality sorry for inconvience
Peace be upon you. I have a power supply. The cooling fan used to work when the temperature rose and turn off when the temperature dropped, but now it works continuously without stopping. I looked for the temperature sensor, but I did not find it. There is no sensor. How do I fix the problem?
Thank you sir, I'm confused at tl431 voltage drop 10.07v here(cathode to anode voltage drop). Sir before this your video "understanding tl431 adjustable refrence, theory and practical" You said that tl431 while in on state(2.5v at ref. Pin) drop about 2.5v at VKA(voltage between cathode and anode). But in this video tl431 drop 10.07v at cathode - anode, please can you explain me something that i miss
Sir chote 5v charger me output detect kaise hoti he kase IC ko pata chal ta he ki output stable or right he, kase output ko control karti he with any connection or octocoupler. Please explain this. Also very thankful to you to give this type of knowledgeable video ❤
Bro every smps need a feedback circuit. So it will work as per designed voltage. So every charger are have a feedback network with help of tl431 Or zener diode (instant of tl431) . The zener diodes are placed in feedback pin of switching ic. Like (5.1v, 12v, 15v) smps have 5.1v , 12v , 15v zener. (But its used only in simple circuits)
Salamu alaik, it would be much easier to understand if you can show also the schematic. Take for ex. the datasheet example and explain where you put the extra winding . I think it was better to have it before the resistor? I might be wrong. But still I don't understand how the VCC is 12 while it is coming from 220AC V after the rectifiers? . and why you need to increase the winding?
hi Sir in video #598 i see on transistor Q6&Q7 being driven by pulse transformer with dc biased resistor, i dont understand the configuration on the base of the transistor including the capacitor in parrel with diode , can you please explain how does the transfomer driving the transistor base
Great ! But I admit that I was a little confused with all these calculations! Thanks ! ❤❤
Informative and knowledgeable vedeo thank you so much. God bless you.
Always can't wait for the next one👍👍👍👍👍
Puno,puno pozdrava.hvala na detaljnom objašnjenju.❤🎉
Thanks mr haseeb 👍👍💟
Sir picture is recorded with wide lens and am struggling to stay focused 😰😰
i am still trying to figure out the problem. and solve it. i am trying my best to produce the possibly best
but i am also trying to enhance the video quality
sorry for inconvience
Nothing wrong with your quality, i think the problem is that the modern mobile phones are using lens in wide possition as default setting
excellent analysis
thank you very much sir ...
1:13 You should complete the sentence with "leave the dangerous part for me"
و شكرا لمشاركة الفيديو بارك الله فيك
عندك فيديو لرفع الجهد ؟
Thanks for sharing
Keep up the good work
Greetings dear! Thanks for your greater contributions! Can I get the pdf design manual for meanwell smps power supplies with model: RCP-100-48?
What is the reading of leakage smd capacitor both side when we test a beap mode or continue mode.please help sir
Peace be upon you. I have a power supply. The cooling fan used to work when the temperature rose and turn off when the temperature dropped, but now it works continuously without stopping. I looked for the temperature sensor, but I did not find it. There is no sensor. How do I fix the problem?
👌👍✋
sevgili kardeşim! bir de yükseltmeyi göster ! tam olsun 😊
Thank you sir, I'm confused at tl431 voltage drop 10.07v here(cathode to anode voltage drop). Sir before this your video "understanding tl431 adjustable refrence, theory and practical" You said that tl431 while in on state(2.5v at ref. Pin) drop about 2.5v at VKA(voltage between cathode and anode). But in this video tl431 drop 10.07v at cathode - anode, please can you explain me something that i miss
Sir chote 5v charger me output detect kaise hoti he kase IC ko pata chal ta he ki output stable or right he, kase output ko control karti he with any connection or octocoupler. Please explain this.
Also very thankful to you to give this type of knowledgeable video ❤
Bro every smps need a feedback circuit. So it will work as per designed voltage. So every charger are have a feedback network with help of tl431 Or zener diode (instant of tl431) . The zener diodes are placed in feedback pin of switching ic. Like (5.1v, 12v, 15v) smps have 5.1v , 12v , 15v zener. (But its used only in simple circuits)
@@rajkhumar001 no actually there is no zener , this circuit is using auxiliary winding voltage on its feedback pin.
@@pbelectronic9287 haseeb sir already made about this type of feed back circuit video. Kindly take a look. Sir.
@@rajkhumar001 can you give me the link or video no.
@@pbelectronic9287 video number 939a bro. Take a look.
Salamu alaik, it would be much easier to understand if you can show also the schematic. Take for ex. the datasheet example and explain where you put the extra winding .
I think it was better to have it before the resistor? I might be wrong.
But still I don't understand how the VCC is 12 while it is coming from 220AC V after the rectifiers? .
and why you need to increase the winding?
I have a question sir. Is it possible to make 1 or 1.2volt 5amps by modifying the secondary coil of a smps?
Maybe you have a V adjust ?
hi Sir in video #598 i see on transistor Q6&Q7 being driven by pulse transformer with dc biased resistor, i dont understand the configuration on the base of the transistor including the capacitor in parrel with diode , can you please explain how does the transfomer driving the transistor base
hello, please talk about the voltages vgh and vgl and ck1 on the tikan board of the tv
وعليكم السلام ورحمه الله وبركاته ❤
👍👍👌👌
❤❤❤❤❤❤
Why you are calculate 8/12 for feedback network
Ve aleykum selam