{975} How to check, SMPS PWM IC switching or not?

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  • เผยแพร่เมื่อ 15 มิ.ย. 2024
  • in this video number {975} How to check, SMPS PWM IC switching or not? i demonstrated how we can test/ check / verify any PWM controller IC (pulse width modulation controller ic) in smps switch mode power supply using multimeter. i discussed (UC1842 / UC2842 / UC3842 / UC1843, / UC2843 / UC3843 / UC1844 / UC2844 / UC3844 / UC1845 / UC2844 / UC3844 / KA1842 / KA2842 / KA3842 / KA1843, / KA2843 / KA3843 / KA1844 / KA2844 / KA3844 / KA1845 / KA2844 / KA3844. when vcc voltage are applied to its vcc pin number 7 and return to pin 5. it produces 5 volt reference voltage from pin number 8. pin 4 is RT / CT. pin 4 also can be configured with any external clock signal. it have 2 shutdown techniques.
    You are Invited to Join Haseeb Electronics
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    #howtotest #smps #pwmic
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    00:00 how to test smps pwm controller ic with multimeter
    01:02 UC1842, UC1843, UC1844, UC1845 working vcc voltage
    01:35 UC1842, UC1843, UC1844, UC1845 duty cycle
    02:24 how UC384X or KA384X ic works in smps circuit
    03:29 how vcc startup circuit works in UC384X or KA384X ics
    03:43 what is OLP, UVLO, VCC threshold
    04:23 why vcc voltage fluctuate in smps
    07:12 current sense circuit in UC384X or KA384X ic
    07:51 shutdown / protection techniques in UC384X or KA384X ic
    10:22 What id RT / CT in UC384X or KA384X ic
    11:40 why smps has fluctuation on vcc capacitor
    14:11 UC384X or KA384X ic driving push pull dc to dc converter
    16:06 how to test vcc voltage in UC384X or KA384X ic
    18:05 how to test reference voltage in UC384X or KA384X ic
    19:30 how to test current sense signal in UC384X or KA384X ic
    20:54 how to check that smps is switching or not?
    23:16 how to test switching frequency SMPS in UC384X or KA384X ic using digital multimeter
  • วิทยาศาสตร์และเทคโนโลยี

ความคิดเห็น • 116

  • @Devil_inside-
    @Devil_inside- 9 หลายเดือนก่อน +7

    Your videos are always very infomative but your video quality is very poor, I think the ambient light should be increased for video and the camera quality should also be improved a bit

    • @HaseebElectronics
      @HaseebElectronics  9 หลายเดือนก่อน +13

      first of all. i am sorry for inconvenience
      secondly, i am really thankful for indicating a valuable point. and i will try my best to rectify these issue and will try my best to improve video quality
      please accept my best regards

    • @HaseebElectronics
      @HaseebElectronics  9 หลายเดือนก่อน +5

      @slotmachines756. This is also my observation
      I am already planning to improve video quality to 4k instead of hd video
      And am also idea to enhance light

    • @Devil_inside-
      @Devil_inside- 9 หลายเดือนก่อน +2

      @@HaseebElectronics Glad to know sir

    • @sanashamil6647
      @sanashamil6647 8 หลายเดือนก่อน +1

      Schematic view not visible.. That makes issue

    • @HaseebElectronics
      @HaseebElectronics  8 หลายเดือนก่อน +1

      @sanashamil6647 thanks for indicating point. next time i will try my best to take care

  • @francospagnolo1385
    @francospagnolo1385 5 หลายเดือนก่อน +3

    👍Brilliant lesson, by repairing these power supplies yourself, in addition to saving money, you avoid generating waste.

    • @HaseebElectronics
      @HaseebElectronics  5 หลายเดือนก่อน

      Thanks a lot for your encouraging words 💕

  • @Zhddwd60
    @Zhddwd60 8 หลายเดือนก่อน +1

    Awesome way to check IC switching there is no other best technic to easily understand.shukria bhai JazskAllah.

  • @HELLO-lw8rx
    @HELLO-lw8rx 2 หลายเดือนก่อน +1

    You are a persistent, generous and extremely ambitious person.
    Therefore, you deserve all the respect and appreciation from me and all the followers of your fine channel.
    Thank you.

    • @HaseebElectronics
      @HaseebElectronics  2 หลายเดือนก่อน +1

      السلام عليكم أخي العزيز. تحياتي القلبية وأطيب تمنياتي لكلماتك القيمة. الله يحفظك ويحفظك ويسعدك. رمضان مبارك

  • @vlastimilschindler3643
    @vlastimilschindler3643 9 หลายเดือนก่อน

    Finally this kind of detailed videos I would like to see more of them in the future. Clear, detailed and very helpful. I would like to see you to use the oscilloscope as you mentioned also with clear instruction where to put what probe and how to set the scope. Thank you.

  • @electronium203
    @electronium203 4 หลายเดือนก่อน

    🥇 for you .
    you are number 1 winer in guide and help and lern
    you are work classes top 🔝

  • @mahmoudfawzy4987
    @mahmoudfawzy4987 3 หลายเดือนก่อน +1

    excellant description ,my best greating for you

  • @rolanddejesus8685
    @rolanddejesus8685 9 หลายเดือนก่อน +3

    thank you very much sir for sharing your experience and knowledge...your the best teacher,God bless.

  • @7gurshaansingh6thmarigold58
    @7gurshaansingh6thmarigold58 8 หลายเดือนก่อน

    Very informative and helpful video Sir. It will be very useful for new beginners. Thanks Again. 🎉🎉

  • @vijayakumarkumar9190
    @vijayakumarkumar9190 9 หลายเดือนก่อน

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

  • @chinnarao326
    @chinnarao326 8 หลายเดือนก่อน +1

    Resp Sir! Noce Class Sir. -- ChinnaRao Padeeu Andhrapradesh

  • @anurasenarathna1703
    @anurasenarathna1703 8 หลายเดือนก่อน

    Very informative. Thank you very much.

  • @mosfettg6857
    @mosfettg6857 9 หลายเดือนก่อน +1

    great video,a lot to learn with ref voltage to sensor and snubber circuit to transistor ,i will watch this a few times to take it all in. thank you 👍

  • @osamakosara
    @osamakosara 9 หลายเดือนก่อน +1

    Ma shaa Allah may God bless you

  • @pascalphase2556
    @pascalphase2556 8 หลายเดือนก่อน

    Very useful vidéo ! i like the multimeter on frequency mode to control switching action, very brilliant !

  • @jaym5938
    @jaym5938 9 หลายเดือนก่อน +1

    Top level education!!

  • @peachyblssm1702
    @peachyblssm1702 8 หลายเดือนก่อน +1

    That is what are looking for and l learned a lot coming from you, thanks for sharing. Philippines

  • @user-vj5sb9fr6v
    @user-vj5sb9fr6v 9 หลายเดือนก่อน

    The you my brother mohammad it very useful video and it very good method to test this series of this type Ices thank again for your efforts gad please you

  • @gauripartapshanker9197
    @gauripartapshanker9197 9 หลายเดือนก่อน

    Thank you for sharing your personal experience and knowledge. God bless you.

  • @kaizen1071
    @kaizen1071 9 หลายเดือนก่อน

    Emeğinize sağlık efendim. Sağolun varolun. Allah CC emanet olun.

  • @MachiElectronicsLab
    @MachiElectronicsLab 8 หลายเดือนก่อน +1

    Sir g your work great and nice thanks

  • @alihammoud1248
    @alihammoud1248 5 หลายเดือนก่อน

    جزاك الله كل خير
    أرجو أن تشرح طريقة عمل وإختبار LM358 المتواجدة في دوائرشحن البطاريات وألف شكر لمجهودك الرائع. وأرجوالله أن يكتب لك الأجر والثواب في نشر هذا العلم

  • @babayanjuadetunji1627
    @babayanjuadetunji1627 8 หลายเดือนก่อน +1

    great insight, nice video as usual

  • @ramaswamyranganathan9171
    @ramaswamyranganathan9171 หลายเดือนก่อน +1

    Sir we cannot see your face at all. You explain very well.

    • @HaseebElectronics
      @HaseebElectronics  หลายเดือนก่อน

      Sorry for that
      you can also see me here th-cam.com/users/livei_5nT82786w

    • @ramaswamyranganathan9171
      @ramaswamyranganathan9171 หลายเดือนก่อน

      @@HaseebElectronics sir I have recently developed SMPS 12v 10a working from 90v to 265v with uc3843. It is working good. From you only I gained sufficient knowledge. Thanks

  • @sritirumalanrt
    @sritirumalanrt 8 หลายเดือนก่อน

    You are a God gift for the best teacher (electronic) for me.thank you sir(guruji) ,iam from india,sir please explain ncp1397AG pwm driver ic....

  • @pravinpadhiyar2
    @pravinpadhiyar2 9 หลายเดือนก่อน

    Very nice video sir

  • @technologisttv.repairwalay9493
    @technologisttv.repairwalay9493 5 หลายเดือนก่อน

    GOOD INFORMATION . YOUR STUDENT ... Amir M. Ashrafi

  • @rabihnasr7228
    @rabihnasr7228 8 หลายเดือนก่อน

    You are very smart master thank you i think the resolution of video is good not bad

  • @iofirm7454
    @iofirm7454 7 หลายเดือนก่อน +2

    Amazing

  • @remediusfernandes1570
    @remediusfernandes1570 2 หลายเดือนก่อน +1

    Thanku sir🙏

  • @giorgostexnikos6976
    @giorgostexnikos6976 9 หลายเดือนก่อน +1

    excellent analysis.

  • @electroniquepassion
    @electroniquepassion 8 หลายเดือนก่อน

    Thank you 👍😉👋

  • @khanlala77777
    @khanlala77777 9 หลายเดือนก่อน +1

    Nice sharing brother.

  • @dr.qaisarabbas6127
    @dr.qaisarabbas6127 8 หลายเดือนก่อน

    good job brother

  • @laxmimaninepal249
    @laxmimaninepal249 9 หลายเดือนก่อน

    Nice presentation 🙏

  • @aboabdrahmanaziz8752
    @aboabdrahmanaziz8752 9 หลายเดือนก่อน

    جزاكم الله خيرا

  • @msbbadsha1456
    @msbbadsha1456 9 หลายเดือนก่อน

    Very good video

  • @W1RMD
    @W1RMD 9 หลายเดือนก่อน

    Excellent as always! Very informative. There are a lot of variations in meters and I've notice some of mine don't like switch mode frequencies. You've got mean concerned now about the gate signal and damaging the mosfet with the input capacitance of the meter. Is there a fail safe way to check this? I've noticed you check it at the output of the ic, so is it safer to check the signal there because of the resistor before the gate, of can we put a resistor and/ or a capacitor in series with the meter lead to avoid damage to the mosfet? I don't often ask, but I think it would be worth doing a video on this. Thank you and have a great day!

  • @jcsudeshchannel8224
    @jcsudeshchannel8224 9 หลายเดือนก่อน

    Good teaching thanks

  • @susantaatha6468
    @susantaatha6468 9 หลายเดือนก่อน

    Very nice

  • @ssmm3630
    @ssmm3630 8 หลายเดือนก่อน

    very thanks

  • @xhonatankurti8515
    @xhonatankurti8515 8 หลายเดือนก่อน +1

    Mashallah ❤

  • @lungisamayekiso736
    @lungisamayekiso736 9 หลายเดือนก่อน

    Thank's 😊

  • @luusydney2140
    @luusydney2140 9 หลายเดือนก่อน +1

    Tks ad.

  • @FishingNOutdoorFun
    @FishingNOutdoorFun 9 หลายเดือนก่อน

    nice info, Thanks for sharing

  • @jboy4real
    @jboy4real 8 หลายเดือนก่อน

    This is well elaborated thank so much.
    My question can supply IC 3843 more than 30v because it has an internal 34v zener diode. Thanks

  • @electricalpowerengineering9332
    @electricalpowerengineering9332 7 วันที่ผ่านมา +1

    Thank you sir

  • @piusmakau9163
    @piusmakau9163 9 หลายเดือนก่อน

    I love your videos Sir . Keep it up 💪. Can you please share with me the details of your big screen multimeter so that I can get exactly the same type because I think It's great

  • @maedotwondesen3471
    @maedotwondesen3471 9 หลายเดือนก่อน

    HI HASEEB UR LESSON IS AS ALWAYS IT IS GOOD BUT TODAYS SOUND IS NOT GOOD SOME HOW.KEEP IT UP BRO.FROM ETHIOPIA.

  • @afifthbe
    @afifthbe 9 หลายเดือนก่อน

    i'm learning

  • @arunkumar-bh2dp
    @arunkumar-bh2dp 9 หลายเดือนก่อน

    thank you for your valuable information. i have a one doubt. we have one ups in icu central monitor and it is not working . when i was open to check inside the ups. battery is 4v only but battery voltage is 12v. board looks like good no burning or defective component. when i connect ac power, cumming sound come inside transformer. after removing battery the cumming sound is disable. is there any ideal about this

  • @mr.singhmechanical6529
    @mr.singhmechanical6529 หลายเดือนก่อน

    Just put ur multimeter positive prob on switching mosfet and see if voltage is present and study then switching hot genrated
    If the voltage look like not have on mosfet switching is working

  • @Diebog
    @Diebog หลายเดือนก่อน

    How do I do this test on an FA5304? I have a 14.4v nicad charger that has an amps im trying to fix. Thanks

  • @theconquerorstv506
    @theconquerorstv506 5 หลายเดือนก่อน

    Can you make practical smps using igbt. Thanks

  • @niroshanfernando2493
    @niroshanfernando2493 8 หลายเดือนก่อน +1

    Dear sir, I'm from srilanka, my kind request. Please explain function of ICE2QS03 PWM ic. It is using in LG Hometeater DH6631

  • @kouiderz-39.
    @kouiderz-39. 9 หลายเดือนก่อน

    وعليكم السلام ورحمة الله وبركاته

  • @amilaernthavitarana1980
    @amilaernthavitarana1980 3 หลายเดือนก่อน

    Sir can you explain about FAN7602

  • @nayanjagirdar8408
    @nayanjagirdar8408 8 หลายเดือนก่อน +1

    Very nice teaching sir
    But Hindi video?

    • @HaseebElectronics
      @HaseebElectronics  8 หลายเดือนก่อน

      most welcome brother
      yes today i recorded in Urdu today. it will be available after 2-3 days

  • @babayanjuadetunji1627
    @babayanjuadetunji1627 8 หลายเดือนก่อน

    please can you make a video about 3 phase SMPS circuits using UC38xx series

  • @warunakumara7671
    @warunakumara7671 3 หลายเดือนก่อน

    SIR THANK U FOR THE VIDEO , IAM WARUNA FROM SRILANKA , SIR WTS THE IC DATA SHEET NUMBER THAT UR SHOWING IN THIS VIDEO , SIR AT THE FIRST STAGE WAS THE PWM IC PARTIALLY BIASED WHEN IT START SWITCHING ? IF SO CAN A PARTIALLY BIASED PWM IC CAN DRIVE A MOSFET ?AND ALSO SIR WHEN THE CAPACITOR IS CHARGING PWM IC DOESNT GET ITS VCC ISNT IT SIR , SO CAN U SHOW WTS THE DISCHARGING PATH OF THE CAPACITOR ? SIR IN THIS PWM IC IT TAKE FEED BACK NOT FROM SECONDARY SIDE BUT FROM PRIMARY SIDE OF SMPS WHY ? THANK U SIR PLZ EXPLAIN

  • @PCB_UNCLE_REPAIR_CENTER
    @PCB_UNCLE_REPAIR_CENTER 8 หลายเดือนก่อน

    Assalamualaikum Bhaiya....
    Plz you can explain how does an ac non polar capacitor work in motor Or ceiling fan....
    And why it changes its rotation direction
    When we interchange starting and running terminals.....
    I know how it works it's only superficial
    I wanna learn his deep working
    Plz plz explain
    in hindi with deep details..
    If you read this comment...
    . . .. . .Have a nice day 💖💖💖

  • @user-rx6vu4gq6h
    @user-rx6vu4gq6h 8 หลายเดือนก่อน

    Can u talking about sg3525

  • @jboy4real
    @jboy4real 8 หลายเดือนก่อน

    Also how to ensure that the feedback pin and the comp pin of uc384xx is maintened at 1v

  • @user-ys3dc5lo6x
    @user-ys3dc5lo6x 4 หลายเดือนก่อน

    In dual output smps 24v and 12v.. Only 24v is working.. Ic used in dc side is mp1591.how to make sure the ic Switching ir not?

  • @jboy4real
    @jboy4real 8 หลายเดือนก่อน

    I noticed that most of the uc384xxx the comp pin is connected to pin 2 through resistor and capacitor and the opto-coupler is connected to comp pin to ground. Kindly explain the reason for that and how to calculate the resistor and capacitor value for the compensation

  • @Ibanez25145
    @Ibanez25145 8 หลายเดือนก่อน +1

    Electronics technician...more idea ..

  • @parthchudasama9750
    @parthchudasama9750 8 หลายเดือนก่อน

    Sir in flood lights thare is smps but it doesn't have optocoupler for voltage control. As per our led light requirements voltage auto adgest. So please explain how this smps auto adgest the voltage? And without optocoupler how it possible. please make video on this topic

  • @raqeeburrehman5019
    @raqeeburrehman5019 9 หลายเดือนก่อน

    AoA ,sir Short course online start kr dy new students basic sy sekh saky

  • @muhammadyaseen8633
    @muhammadyaseen8633 4 หลายเดือนก่อน

    Aslamoalakum gee Sir gee aap kesy Hein sub theek shukr alhamdulillah
    Sir gee ye btain ke aam labtop Supply se Kisi amplifier bke leay dual Supply kesy bna sakty hein plzz sir help me

  • @sultanscience4912
    @sultanscience4912 7 หลายเดือนก่อน

    Sir, please give me link for that schematick ,

  • @technogamergaming1504
    @technogamergaming1504 7 หลายเดือนก่อน

    Sir can you make one vidio on vfd reparing 972 vidio series make same all part wish explain stap by Stap all section testing processes thanx
    Same laptop reparing vidio series make all sections test step by Stap and all generation mother board power plan explain thanks in advance👍

  • @ephremkinfemichael6925
    @ephremkinfemichael6925 8 หลายเดือนก่อน

    Hi sir My smps pwm ic and mosfet it doesn't work .I can't to get what should I do ?

  • @EEE-Cml-
    @EEE-Cml- 8 หลายเดือนก่อน

    First of all, thank you. We follow you from distant lands. You are someone the world knows. But the sound quality of the video broadcast is very bad. Can't you get a quality microphone? I recommend you use a new and high-quality microphone.

  • @bijoy067
    @bijoy067 หลายเดือนก่อน

    How to get that drawing sir

  • @RajendraKumar-pm1ps
    @RajendraKumar-pm1ps 4 หลายเดือนก่อน

    Please send the link of Hindi/Urdu version of this video. Thank you.

  • @electrical_engineer1
    @electrical_engineer1 9 หลายเดือนก่อน

    Sir, urdu Lagrange in available??

  • @sanelleric6121
    @sanelleric6121 9 หลายเดือนก่อน

    I'd only add one thing to your warning which comes on the very beginning on every video of yours is "Always use isolation transformer, during tests on switching power supply", but, that's just me. If they never do any experiment, they can't get ever any practical experience.

    • @Crystalservices
      @Crystalservices 8 หลายเดือนก่อน

      Why is an isolation transformer required ?

    • @sanelleric6121
      @sanelleric6121 8 หลายเดือนก่อน

      So you're not referenced to earth.@@Crystalservices

  • @sajawalhussain6505
    @sajawalhussain6505 5 หลายเดือนก่อน +1

    Sir smps flactuate and fet become very hot what is the reason please reply

    • @HaseebElectronics
      @HaseebElectronics  5 หลายเดือนก่อน

      Please check it's RCD snubber circuit
      MOSFET gate drive components
      Smoothing capacitor

    • @sajawalhussain6505
      @sajawalhussain6505 5 หลายเดือนก่อน +1

      @@HaseebElectronics sir all capacitor are ok here is 3842 14pin ic it's vcc become 14 volt and down

    • @sajawalhussain6505
      @sajawalhussain6505 5 หลายเดือนก่อน +1

      No resistor are fault I check it thoroughly.

    • @sajawalhussain6505
      @sajawalhussain6505 5 หลายเดือนก่อน +1

      @@HaseebElectronics sir I have check all capacitor and resistor all are ok optocuppler may be bad or not sir because with meter optocuppler value is good

    • @HaseebElectronics
      @HaseebElectronics  5 หลายเดือนก่อน

      Might the be MOSFET is not properly matched. If the RDS on is high, it also causes the heating

  • @jboy4real
    @jboy4real 8 หลายเดือนก่อน +1

    Also kindly upload those diagrams on your paper because it is not clear to read.

    • @HaseebElectronics
      @HaseebElectronics  8 หลายเดือนก่อน +1

      th-cam.com/users/postUgkx7swg0f5HXTn9TBDxVQ_tL5dDQ7yE9XF6

    • @HaseebElectronics
      @HaseebElectronics  8 หลายเดือนก่อน +1

      th-cam.com/users/postUgkxXSMq85GO_PDlLyNcPEJugkOabihke0d5

    • @HaseebElectronics
      @HaseebElectronics  8 หลายเดือนก่อน +1

      th-cam.com/users/postUgkxDxsu6DGkPGc8n4CNIE-Fs2Xl_PeITR_q

    • @jboy4real
      @jboy4real 8 หลายเดือนก่อน +1

      @@HaseebElectronics I really appreciate

    • @jboy4real
      @jboy4real 8 หลายเดือนก่อน +1

      @@HaseebElectronics I really appreciate

  • @SokeElektronikKartTamiri
    @SokeElektronikKartTamiri 8 หลายเดือนก่อน

  • @NisarAhmad-tf2pg
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