{987} why ntc is used?

in this video number {987} why ntc is used? i discussed, thermistor ntc or ptc, why NTC is used in smps switch mode power supplies for inrush protection or surge current protection for charging the empty capacitors
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#ntc #ptc #thermistor
00:00 why NTC thermistor is used in SMPS
00:20 what is NTC thermistor?
00:48 how to test NTC thermistor with multimeter?
02:00 what is surge current or inrush current

[@johnlabuci96]

sir, if it reduce the resistance when the temperature rises, doestn it allow the current spike to go through the circuit? how it protect the circuit if that happen?

[@HaseebElectronics]

great point. when it is cold, at that time it provides resistance and that is the start up time of the capacitor charging when capacitor is charged at a specific level, after that there is not need to limit the current until that time the substrate temperature of the thermistor is increased and its resistance is dropped to allow full rated current (its negligible resistance value remains in circuit, but that doesn't effect on the circuit efficiency)

[@ISO07ISO]

Senden çok şey öğreniyorum. Allah sana sağlık ve güzel bilgi versin.

[@abidinakdag658]

I am grateful to you for the very valuable information you provided about NTC and NTC circuit. Electronics becomes more enjoyable with you. Allah bless you. Best regards...

[@k3ggaming926]

Nice sir now i can fix any power supply because of your teaching sir thanks a lot… I’m a automotive mechanic and electronics Hobbyist

[@vijayakumarkumar9190]

Very good and useful information sir thanks for sharing this knowledge to us

[@muhammadwazir3350]

Thanks for this help full video

[@ranamanwarurdupoetry8990]

وعلیکم السلام ماشاءاللّٰه‎

[@gauripartapshanker9197]

Informative vedeo vedeo. Thank you so much. God bless you.

[@BJcanal270]

Very good video content

[@powerbord6002]

Very very good

[@sudheerkumar5966]

Very good sir

[@pravinpadhiyar2]

Very nice video sir

[@muhammadishtiaq24]

Excellent keep sharing

[@salamsaloom2477]

👌👌👌👌👌👌

[@obaidish]

Very nice video sir thanks..

[@ahoorapersia4698]

Thank you sir for excellent explanation.🙏🏻

[@dzabakwesi2213]

Thanks for the video sir

[@dr.qaisarabbas6127]

nice

[@jcsudeshchannel8224]

Good thanks

[@moatazkhameselec6698]

الله ينور على حضرتك عندى سوال بالنسبه كارته الانفرتر AC ممكن شرح لفكره عملها وطريقه تتبع اعطالها

[@iofirm7454]

❤

[@marinvidovic763]

👏👏👏👏👏👏👏👏👏👏

[@jayanevijayan8031]

Sir, please add a P10 display board hard ware servicing. I search this type video. I canot get a proper one

[@MbaduMalonda-sc5dg]

hi Sir can you please do a video on smps thats has multiple output in the secondary i don't undesrtand that part of negative voltage on the output

[@ISO07ISO]

NTC ilk baştaki yoğun akım çekmeyi dengelemek için görev alır. Bir başka yoğun akım çekima kadar görev almaz değil mi. Sürekli dengeleme mi yapar yoksa?

[@ISO07ISO]

NTC hep aynı ısıda hep aynı direnç kaybını mı yaşar yoksa farklı türleri var mıdır?😊

[@mtrltoolman]

Dear Sir I need your help please. I rewinded the secondary winding of microwave oven transformer to put it in a linear power supply i want to make with a buck converter circuit . Now i am confused about the current rush , is it necessary to put ntc resistor before after the transformer , or after the bridge rectifier? Best regards ❤

[@MbaduMalonda-sc5dg]

hi Sir can you please make a video on smps that use single transitor to oscillate like cellphone chargers , i would really appreciater as i don't understand how the transistor perform self oscillation.

[@vcontroller8051]

Hello Sir, How to calculate pull up resistor value in case of analog sensor interface???

[@aboabdrahmanaziz8752]

عليكم ورحمة الله وبركاته

[@muhammedaflah7920]

How this low ohms (NTC) resistor limit these high ampere current taken by capacitor? By ohms law, I=V/R, if R is small, I is more. Is it correct.

[@EARNINGPOINT007]

I have a charger of bike. It's feedback ic is demaged.how I can find the number of ic?

[@darenchanlp]

Sir how do I know if this thermistor is not functioning? Thanks in advance for your kind reply. Thanks again.

[@HaseebElectronics]

in that case the fuse will burn out immediately after connecting power

[@darenchanlp]

Thanks 🙏

[@nptjohnny2514]

How to solve smps power up and suddenly off?

[@goutam9351]

Sir I have a really urgent question In my SMPS power supply 24v 10A working properly but when I turn on the smps just after the indicator light is off when smps is turned off it doesn't work But after a min it works normal until I turn on off simultaneously When repairing i noticed when my multimeter probe touch one 2sc1815 middle pin (tl494 c1) it turns on all of a sudden but and the cycle continues what should I do sir 🙏🙏

[@W1RMD]

Broken solder joints or cracks in circuit board? Checking the ic with a meter and pushing down on the ic pins can reveal a loose solder joint on the ic where it is soldered onto the circuit board. If you can't see cracks around the pins with a magnifying glass, try to soldering around all the pins anyway and it might fix cracks in the solder. Be very careful when checking with a meter. VERY easy to short between pins with the meter test leads and destroy the ic! A short (bad capacitor or mosfet) or other problem will cause a fault and the ic will go into a loop and keep trying to reset itself. Check output voltage with a volt meter and see if there's a fluctuation in output voltage and that may show that. Watch Haseeb's MANY smps videos and he'll show this. Good Luck!

[@DIYMachineYT]

NTC? Negative Temperature Coefficient

[@HaseebElectronics]

Yes Negative temperature coefficient resistance or thermistor

[@VenkatesanS]

On headphone, this video audio has some double voice is being heared.

[@NisarAhmad-tf2pg]

💯❤