How to Decrease SMPS output voltage, {1206}

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In this video number {1206} How to Decrease SMPS output voltage, i demonstrated how to modify 12 volt SMPS to get 8 volt, how to decrease output instead of its rated voltage. after all this modification the SMPS works without any fluctuation. i shared feedback netwrok readjusting process to calculate reference voltage setting process for TL431 to drive optocoupler cathode current
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Опубликовано:

5 окт 2024

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Комментарии : 31

@transformateur9969 День назад

Great ! But I admit that I was a little confused with all these calculations! Thanks ! ❤❤

@miloradgraovac74 День назад

Puno,puno pozdrava.hvala na detaljnom objašnjenju.❤🎉

@gauripartapshanker9197 День назад

Informative and knowledgeable vedeo thank you so much. God bless you.

@omiza3416 15 часов назад

Always can't wait for the next one👍👍👍👍👍

@mahmoodh7767 День назад

Thanks mr haseeb 👍👍💟

@kahlid-ataya 2 дня назад

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 ؟

@Edmorbus 2 дня назад

Thanks for sharing Keep up the good work

@giorgostexnikos6976 День назад

excellent analysis

@omiza3416 День назад

Sir picture is recorded with wide lens and am struggling to stay focused 😰😰

@HaseebElectronics День назад

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

@omiza3416 День назад

Nothing wrong with your quality, i think the problem is that the modern mobile phones are using lens in wide possition as default setting

@rolanddejesus8685 День назад

thank you very much sir ...

@زكيالحنين-و1ظ День назад

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?

@restingroysurong805 2 дня назад

What is the reading of leakage smd capacitor both side when we test a beap mode or continue mode.please help sir

@tvbox8478 День назад

👌👍✋ sevgili kardeşim! bir de yükseltmeyi göster ! tam olsun 😊

@pateakmc4370 23 часа назад

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

@aliemlek День назад

👍👍👌👌

@yamansaadO 14 часов назад

وعليكم السلام ورحمه الله وبركاته ❤

@harritronics360 14 часов назад

I have a question sir. Is it possible to make 1 or 1.2volt 5amps by modifying the secondary coil of a smps?

@kumu2024 День назад

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?

@pbelectronic9287 День назад

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 ❤

@rajkhumar001 22 часа назад

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)

@pbelectronic9287 18 часов назад

@@rajkhumar001 no actually there is no zener , this circuit is using auxiliary winding voltage on its feedback pin.

@rajkhumar001 17 часов назад

@@pbelectronic9287 haseeb sir already made about this type of feed back circuit video. Kindly take a look. Sir.

@pbelectronic9287 17 часов назад

@@rajkhumar001 can you give me the link or video no.

@rajkhumar001 2 часа назад

@@pbelectronic9287 video number 939a bro. Take a look.

@MbaduMalonda-sc5dg День назад

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