बहुत ही शानदार, आपके द्वारा एक एक रजिस्टर तक के सर्किट में प्रयोग का सटीक कारण बताया गया है। इस से आपके इलेक्ट्रॉनिक्स मे पकड़ और सटीक ज्ञान का पता चलता है। धन्यवाद हमे इतना ज्ञान देने के लिए।🙏
Another well described video Sir. I was making notes on my printed circuits as you were describing. I never would have understood this circuit without your brilliant teaching. PS, current feedback voltage for say 20A smpsu would be 0.039V (not 0.39V as parallel shunt Rs=0.00195 ohms). FYI, I have a faulty half-bridge smpsu. When I get a moment I will check it out as per your teaching and hopefully will learn more.
लाजवाब। आसान तरीके से समझाना, बहुत.मेहनत करनी पड़ती है दिमाग को, जो आपने हम लोगों के लिये किया है। सर सेंटर टेप ट्रांसफार्मर के ऊपर एक वीडियो कृपा करके बनाएं।
میں نے اپ کی 39 اور 40 نمبر ویڈیو دیکھیں اب مجھے ایسا لگ رہا ہے کہ اپ کی ویڈیو بہت اچھی ہے اور اپ کی تقریبا ویڈیو دیکھنی ہے اور اللہ اپ کو اس کا ضرور اجر دے گا انڈیا پاکستان زنداباد
Gurudev 🙏🙏 Aap bahot hi helpful video banate h aap se bahot logo ko help milti h 12 volt 20 amp ki suply me 13009 or 1.8 E fr 107 shot the Chenge karne ke bad Output pe 13 volt aa rahe he par jaise hi lod dalte h volteg drop hoti hoke 5 volt ho jati h Please bataye kis section me problem hogi ❤️❤️🙏🙏❤️❤️
Sir, mere pass triple output smps h,+12v, -12v, and +5v. output me load lagane par sound aati hai, lekin output fluctuate nahi karti. usme main dc capacitor bhi change kar liya, feedback optocoupler 817 change, output capacitor changed, pwm ic change ea1532 changed. ek ic 3037 or lagi h..wo change nahi ki..... please guide any suggestions.
Salam Dear Talented brother, i have 3 questions if i may: 1- In the FB section, why having 10K and 220R in the positive side of the voltage divider, why not only 1 resistor ? 2- In the same section, why having in parallel a 33nF capacitor ? 3- most importantly, i do not get what is the output of the 1815 transistors and where do they get it from. Are they transmitting ground or positive voltage ? Many thanks for that excellent course.
1- Because resistors are not available in every required value, hence we use two or more resistors in series or parallel combinations to get that required value. 2- A parallel capacitor is used to avoid sudden change in feedback voltage level. 3- Output of transistors C1815 will be negative as we have connected ground line to the emitter of both transistors through diodes D1 and D2. Hope this clears all your doubts ❤️👍
السلام علیکم بھائی جو اپ نے ویڈیو بنائی ہے واقعی بہت غضب کی ویڈیو ہے اور جتنی ویڈیو میں نے اس سے پہلے دیکھی ہے اس سے بہت مختلف ہے اور اپ کا مقصد بھی یہی نظر ارہا ہے کہ کوئی مجھ سے سیکھیں
Sir jaise SMPS ki output mein 12v aur 5v mil rhe hai toh feedback ko dono supply se connect karna hota hai ke ek hi supply ko connect karna hota feedback se, thanks sir ji 🙏🙏
Mere 5v 60 amp smps mein output section mein galti se short circuit hua tha jiske wajah se 13009 ka transistor baar baar ud raha hai kya mujhe woh ic change karna padega kya?
I am a Sri Lankan subscriber who kept a new power supply of this type for many years without using it and now I find my pulse transformer damaged, perhaps due to internal corrosion. Please do a video on how to rewind it. I found an 8 - 0 - 8-turn winding and another 2-turn winding with a thicker coil. The secondary has a 33 - 0 -33 turn winding. Now I'm confused on how to rewind it
Sir ji ic ke internal do TRS lage hai, do bahar pcb per lage hai jis ko internal wale TRS switching karate hai, sir jab ic ke internal do TRS hai toh bahar lagane ki ki zarurat hai, se sir meri confusion door karo, thanks 🙏🙏
Uske liye maine ek alag se video banai Hui hai dost jisko aap neeche diye link se dekh sakte ho... ruclips.net/video/fzAWIiJNmHE/видео.htmlsi=2JCztTaLZ4y9yLsi
Yes ofcourse sir ji, half bridge ant ATX power supply is also the most important topic of electronic appliances because every appliances first requires is power supply without power how could we start it at all anyway sorry sir ji my intense is not to ask you to start topic of led tv main board in between any way, thank you for your response sir ji pranam ❤ 1:081:11
sir apki har video bahot badia hoti hai magar app please kuch aisay circuit pe kam kardo jis main SMD component hotay hai sir hum ko smd coponent ko check karna aur trace karne main bahot dikkat hoti hai kuch es tarah samjado jisa k app ne LM358 TL431 ya har IC ko pin trace karne k video banaia hai wo bahot badia hai so please sir we are wish and request to you SMD circuit pe fox kardo sory if you mind this my words
Intel server ki smp g36234-008 Jo 12volt 1600watt 133 amp hi me us ko 14.5 volt Karna Chahta hoon mgr Us ka feed back samjh Nahin aaraha kuchh help kar dingi
22:25 sabse pehle to pranam Guruji sir aapne jo yanha samjhaya ki switching kaise ho rahi hain pulse transformer ke driver transistor pe lekin mera ye doubt hain ki Wo transistor ko switch krwane ke liye hamlog negative deke off kyun krte hain pull up configuration mein usko direct on kyun nahi krte pul down configuration mein matlab ki ic ke collector ko positive pe connect kr do and emitter se positive drive le lo aur driver transistor ke base pe de do simple but yanha negative switching ka use kyun kiya gaya hain matlab ki jab ic ke andar ka transistor off hoga to driver transistor on hoga and jab andar ka transistor off rahega to bahar ka transistor on hoga And ek problem aur hain ki jab output mein matlab ki smps main output section mein jab voltage high hoga tab error amplifier on ho jayenge non inverting pin ka voltage jyada ho jaane ke wajah se tab op amp ka output bhi high rahega to us time wo ic ke andar Wale transistor ko off kr denge lekin driver transistor pe to voltage High hi rahega kyunki wo pull up hain to smps ke output section mein tab bhi voltage badh hi rahe honge to ye output ko control kaise kiya
1- IC ke andar NPN transistor Lage hain, aur NPN transistor negative supply ko hi switch karta hai. isaliye bahar Wale transistor ko pull up karke negative signal Diya jata hai. 2- output voltage high hone par jab OpAmp ka output high hoga, to wo transistor ko off nahi karta hai, kewal uski duty cycle ko wahi rok deta hai. Switching band nahi hoti hai dost. Ye baat maine video me bhi already batai Hui hai...😊
@@vccground-hindipranam guruji npn transistor ke collector pe agar positive voltage diya jaye to wo use emitter se out krwa sakta hain bs 0.7 volt ka drop aayega actual voltage se and is chiz ko use krke ham is ic se mini inverter bhi bana sakte Hain kya ye jo abhi Maine bola wo sahi hain sir jiiii agar sahi hain to power supply mein is configuration ka use kyun nahi krte And sir Second wale ke baarein mein jaisa ki aapne video mein hi bataya hain lekin ic apna duty cycle maintain ya constant kaise kr leta hain jabki normal flyback power supply mein agar output mein voltage badhta tha to ic ka pulse low ho jata matlab MOSFET off and jab jab output mein voltage km hone lage to pulse high hone ke wajah se MOSFET on ho jata tha aise krke output mein voltage stable kiya jata tha lekin is smps mein kaise duty cycle constant ho raha hain ek baar agar time mile to kisi video mein explain kr dijiyega sir
आपका समझाने का अन्दाज बेमिसाल है हर चीज को बारिकी के साथ समझाने की कोशिश एक अलग ही लगाव/ सोच पैदा कर देता है जिसे भावनाओं से ही समझा जा सकता है । ये विषय जटिल (हमारे लिए) होने के कारण कुछ बॉन्सर से चले जाते है इसके लिए वीडियो को कई कई बार देखना पड़ेगा आगे इसी क्रम में R6,R7 और इन्ही के just बगल मे D 1&2 और C7 दिखाये दिये शायद उनका जिक्र नहीं आया। कृपया अगली वीडियो में थोड़ा प्रकाश डालने की महेरबानी करना जी Iमेरी भूल हो तो क्षमा चाहता हूं - धन्यवाद
शुक्रिया सर। जैसा कि आप ने खुद ही कहा कि ये विषय जटिल है, इसी वजह से मैंने इस सीरीज की पहली या दूसरी वीडियो में ही कहा था कि इसमें मैं बहुत गहराई में न जा कर, सिर्फ उतना ही विस्तार से बताऊंगा जितना इस सप्लाई को रिपेयर करने के लिए आपको जानना जरूरी है। उन्ही कंपोनेंट की बात करूंगा जो इसमें अक्सर खराब होते रहते हैं। मेरी कोशिश यही है कि यह विषय जटिल होने के बावजूद जिस तरह आप सब को आसानी से समझ आ पाये, उसी तरीके से ही बताऊं। अगर एक बार आप समझ गये, उसके बाद हम गहराई में भी उतर पाएंगे, वरना किसी को कुछ समझ नही आएगा, सब ऊपर से ही निकल जायेगा 🙄
sir jasa k apne phle b smps board ka diagram banaya tha sir wase hi ap Half Bridge smps supply ka diagram bana ke guide karen plz sir asal mein sir jo ap khud se copy pe diagram bana kr guide krte hein wase hi yah b guide karen gy to sir sab log jaldi pick kr len gy Sir mein adeel khan
Adeel Bhai, flyback SMPS ka circuit chota hota hai. Par half bridge me components jyada hone ki wajah se circuit bada ho jata hai, isliye iss baar print kar liya isko ❤️👍
@@vccground-hindi sir ap bohat nice hein sir apke taref ke liye alfaz kam hein sir apse aik guzarish our b hei agar apko bora na lagy to sir ap jo half bridge smps yah koi b smps guide krte hein un smps board ka full diagram our model name b Description mein diya karen sir plzzzz naraz mat huiye ga sir apka ahsan to phle hi bohat zada hai hum sab par
Sir in my mind one cofusion please clear in DC working 250 volt /1000 mfd at this we able to use 1200 mfd Or below 1000 mfd than which type problem created . Another question please explain about ic ucp 1397AC pwm& in out G9051. Please give your contect number also. Thanku you
मेरे कहने का मतलब इस सर्किट को ही अन्य और आईसी का भी हम स्केमेटिक सर्किट डायाग्राम डाउनलोड कर सकें इसलिये लिंक मांगा था, अगर आपकी इच्छा और कृपा हो तो। धन्यवाद!
sir 5volt ka ek charger ata he jo ki sirf ek tranasiter se kaam karta he us transistro ko on off kon karta he uski working samaj me nahi ati us transistor ka number he hlb120a iska ek video banaiye please
C24 iss SMPS ka startup capacitor hai jiski wajah se Switch start hoti hai. Agar aap isko hatake direct kar denge to +155v wali line 0V line ke saath direct jud jayegi aur short circuit ho jayega..aur fuse bhi udd jayega dost ...
Sir please clear my question in the output R17..... 19 the resistance are 1. 2 k in the parallel the resistance to low but why in the out put the volatage are not to decreased or low.
Sir नमस्कार Mughey yah बताएं कि uc3845 का use kaha-kaha कर सकते है येक smps मे mosfeet skt 0260 है और 6leg वाली driver है जोकि खरब है मै uc3845 का एक driver बनाकर लगाया जैसे ही power सीरीज मे दिया और out पुट पर led connect कर रखा था led glow हुआ पर एक आवाज आया power कनेक्शन हटा ker देखा तो mosfeet, uc3845 और 22 ओम का रजिस्टर जोकि uc3845 के 6 no पिन पर था जल गया. Please जल्द बताएं कि आयशा क्यों हुआ.
Sir नमस्कार कृपया बताएं कि SK0260 mosfeet के जगह पर क्या 4N60 या 5N60 लगा सकते है क्या आप नै बताएं कि uc3845 के जगह पर uc3842 या uc3843 लगा ker देखे. Please reply.
Sir smps का पहला वाला mosfeet skt 0260 तो खराब होगया है इसलिए इसके जगह पर 4N60 या 5N60 साथ मे driver uc3842 का connect karnay से smps स्टार्ट हो सकता है क्या. प्लीज जल्द reply दीजिए.
The negative resistor most be lower not higher I see some much smps get damaged because the designer refuse to ground the feed back pins properly the many current ripple in the pwm duty cycle falsely turn on the gate when pulse is off causing the death of the switch if the negative us lower the current ripple is synchronize to the turn on and turn off that's hiw it's done
Brother, that negative resistor act as a Gate pull down resistor only. Pull down resistor value should always be higher than the signal resistor, otherwise the positive signal won't reach the gate due to higher negative potential already present there ..
बहुत ही शानदार, आपके द्वारा एक एक रजिस्टर तक के सर्किट में प्रयोग का सटीक कारण बताया गया है। इस से आपके इलेक्ट्रॉनिक्स मे पकड़ और सटीक ज्ञान का पता चलता है। धन्यवाद हमे इतना ज्ञान देने के लिए।🙏
आपका भी धन्यवाद दोस्त, जो आप इतने लंबे वीडियो को इतना ध्यानपूर्वक देखते हैं ❤️👍
Bahut hi bhayankar video bani hai na jane kitno ko samajh aayi hai aapne apni taraf se bahut badhiya explain Kiya hai dhanyawad sirji
Maine bahut basic level par ja kar samjhaya hai, umeed hai adhiktar doston ko samajh aa gayi hogi ❤️👍
Another well described video Sir. I was making notes on my printed circuits as you were describing. I never would have understood this circuit without your brilliant teaching. PS, current feedback voltage for say 20A smpsu would be 0.039V (not 0.39V as parallel shunt Rs=0.00195 ohms). FYI, I have a faulty half-bridge smpsu. When I get a moment I will check it out as per your teaching and hopefully will learn more.
Shunt resistor values may differ from supply to supply...
Sarji pranam ❤❤ bahut achha laga aap bahut bariki se sanjhate hai Uske liye dhanyvad sarji 🙏🙏🙏🙏
Video ko dhyan se dekhne ke liye aapka bhi dhanyawad dost ❤️👍
लाजवाब। आसान तरीके से समझाना, बहुत.मेहनत करनी पड़ती है दिमाग को, जो आपने हम लोगों के लिये किया है।
सर सेंटर टेप ट्रांसफार्मर के ऊपर एक वीडियो कृपा करके बनाएं।
शुक्रिया दोस्त ❤️👍
Bahot hi achhi information di hai aapne hame sab samaj me aa gaya thank you very much
Shukriya Dost ❤️👍
बेमिसाल, इसके अलावा शब्द नहीं है। धन्यवाद आपका।
आपका भी धन्यवाद दोस्त ❤️👍
Very. Very. Thanks beautiful video
Nice explain for smps.circuits
Thanks for liking brother ❤️👍
Acchi Tarah samajh mein a Gaya Sar diagram thank you sir
❤❤❤ जबरदस्त तरीके से समझाया है जी आपने धन्यवाद
शुक्रिया दोस्त ❤️👍
Very deep knowledge and excellent exploring salute you sir
Thank you so much brother ❤️👍
میں نے اپ کی 39 اور 40 نمبر ویڈیو دیکھیں اب مجھے ایسا لگ رہا ہے کہ اپ کی ویڈیو بہت اچھی ہے اور اپ کی تقریبا ویڈیو دیکھنی ہے اور اللہ اپ کو اس کا ضرور اجر دے گا انڈیا پاکستان زنداباد
بہت شکریہ دوست
Very informatics information sir ji. ❤
Please explain about oscillator circuit pr and cr at pin 5and 6.
Thanks very much for detailed explanation...... Keep it up.....regards
Thanks and welcome brother ❤️👍
Thank you so much for your explanation and your time and hard work best wishes brother.
So nice of you brother ❤️👍
Fantastic video, and an excellent explanation!
Glad you liked it brother ❤️👍
Sir, nicely explained, Lots of thanks. ❤
Thanks for liking brother ❤️👍
Gurudev 🙏🙏
Aap bahot hi helpful video banate h
aap se bahot logo ko help milti h
12 volt 20 amp ki suply me 13009 or 1.8 E fr 107 shot the
Chenge karne ke bad
Output pe 13 volt aa rahe he par jaise hi lod dalte h
volteg drop hoti hoke
5 volt ho jati h
Please bataye kis section me problem hogi ❤️❤️🙏🙏❤️❤️
SMPS flyback hai ya half bridge ?
Lovely description. Thanks
You’re welcome brother ❤️👍
Very nice explanation 👌🏻thanks
Most welcome brother ❤️👍
Jaldi video dalne ke liye Dil ❤ se dhanyawad, thanks brother ji 🙏🙏
Meharbani ji 🙏
Bahut hi lajabab sir
Thanks sirji for this valuable video is tra ke video ko dekh kar bahut kush sikhne ko milta ha
Shukriya Dost ❤️👍
Thank youu sir ji for your valuable knowledge and information ❤🙏
Extremely well explained sir. Anyone with a very basic electronics knowledge will be able to fully understand.😊 Now eagerly awaiting ur nxt video.
So nice of you brother ❤️👍
No problem whatso ever I understand Hindi very well😀
सर्किट डायग्राम उपलब्ध करने के लिए हृदय से धन्यवाद 🙏🏽
आपका भी स्वागत है दोस्त 👍
गुरुजी आपको कोटि कोटि प्रणाम🙏💐
प्रणाम दोस्त ❤️🙏
Harvinder Ji Dil Se Shukriya
Dhanyawad dost ❤️👍
Bahuth acche thareke se aap sikathe ho. Dhanyawad.
Aapka bhi dhanyawad dost ❤️👍
Sir, mere pass triple output smps h,+12v, -12v, and +5v. output me load lagane par sound aati hai, lekin output fluctuate nahi karti. usme main dc capacitor bhi change kar liya, feedback optocoupler 817 change, output capacitor changed, pwm ic change ea1532 changed. ek ic 3037 or lagi h..wo change nahi ki..... please guide any suggestions.
Iske liye to SMPS ko physically dekhna jaroori hai dost...
Very good explain
Salam Dear Talented brother, i have 3 questions if i may:
1- In the FB section, why having 10K and 220R in the positive side of the voltage divider, why not only 1 resistor ?
2- In the same section, why having in parallel a 33nF capacitor ?
3- most importantly, i do not get what is the output of the 1815 transistors and where do they get it from. Are they transmitting ground or positive voltage ?
Many thanks for that excellent course.
1- Because resistors are not available in every required value, hence we use two or more resistors in series or parallel combinations to get that required value.
2- A parallel capacitor is used to avoid sudden change in feedback voltage level.
3- Output of transistors C1815 will be negative as we have connected ground line to the emitter of both transistors through diodes D1 and D2.
Hope this clears all your doubts ❤️👍
@@vccground-hindi all is clear now. I will view again your vidéo to fully understand it. God bless you for sharing and for your Time.
السلام علیکم بھائی جو اپ نے ویڈیو بنائی ہے واقعی بہت غضب کی ویڈیو ہے اور جتنی ویڈیو میں نے اس سے پہلے دیکھی ہے اس سے بہت مختلف ہے اور اپ کا مقصد بھی یہی نظر ارہا ہے کہ کوئی مجھ سے سیکھیں
آپ کی حوصلہ افزائی کا بہت شکریہ دوست 🙏
Sir jaise SMPS ki output mein 12v aur 5v mil rhe hai toh feedback ko dono supply se connect karna hota hai ke ek hi supply ko connect karna hota feedback se, thanks sir ji 🙏🙏
Aam tor pe jo supply jyada ampere ki hoti hai ussi se feedback Diya jata hai dost ❤️👍
wonderful wonderful wonderful video
Many thanks brother ❤️👍
Very good video sir, Thank you.
You are most welcome brother ❤️👍
Bahuth bahuth dhanyawad sir
Aapka bhi dhanyawad dost ❤️👍
बहोत बढ़िया
शुक्रिया दोस्त 👍
Thanks sir ji aap ka bahut bahut shukriya ❤
Dhanyawad dost ❤️👍
Very nice sir👌👍
Very nice❤❤❤guru ji
Thank you brother ❤️👍
Excellent sir ❤
Thanks a lot brother ❤️👍
Nice teacher Sir ❤
Thanks and welcome brother ❤️👍
दिलसे धन्यवाद
शुक्रिया दोस्त 🙏
Sir exilent teaching. Pls explain working of IC SG3525 and 4904 ( 494 ) in a separate video. I think 3525 is more powerful than 4904.
Will upload soon brother ❤️👍
Best explanation
Glad you think so brother ❤️👍
Mere 5v 60 amp smps mein output section mein galti se short circuit hua tha jiske wajah se 13009 ka transistor baar baar ud raha hai kya mujhe woh ic change karna padega kya?
Transistor ke paas Lage diodes me se koi short hoga. Check karo Dost...
Dhanyawad sir ji
Dhanyawad dost ❤️👍
Zabardast Sir
Shukriya Dost ❤️👍
I am a Sri Lankan subscriber who kept a new power supply of this type for many years without using it and now I find my pulse transformer damaged, perhaps due to internal corrosion. Please do a video on how to rewind it. I found an 8 - 0 - 8-turn winding and another 2-turn winding with a thicker coil. The secondary has a 33 - 0 -33 turn winding. Now I'm confused on how to rewind it
Sir mere pass 500 watt LED driver he usme pwm side burn hua he
Is keliye koi module hai kya sir lagane keliye... please batayega
IC number kya hai ?
Can we use 2 mosfet instead of Power Transistor which are mainly switching main Trasformer for output 12V?
No. Transistors and MOSFETs work in a different way. So you can't use MOSFET in a circuit designed for transistor...
@@vccground-hindi ok Thanks brother for reply
Good information sir
So nice of you brother ❤️👍
Sir ji ic ke internal do TRS lage hai, do bahar pcb per lage hai jis ko internal wale TRS switching karate hai, sir jab ic ke internal do TRS hai toh bahar lagane ki ki zarurat hai, se sir meri confusion door karo, thanks 🙏🙏
Very informative
Glad you liked it brother ❤️👍
@vccground-hindi I am from karachi Pakistan,I have seen a lot of your videos on power supply and charger, they are very good.
Sir, theory ke saath practical karke samjaiye, please to aur bahetar samaj sakenge.
Ek baar theory clear ho jaye to uske baad to practical videos hi aayenge dost...
Nice explain sir
Thanks for liking brother ❤️👍
Nice sir
Sir e rickshaw charger me me lm 324 ic lagi hoti he usme bhi volt or carunat kam jayada karne ke liya same mathod hoga please us par batayena please
Uske liye maine ek alag se video banai Hui hai dost jisko aap neeche diye link se dekh sakte ho...
ruclips.net/video/fzAWIiJNmHE/видео.htmlsi=2JCztTaLZ4y9yLsi
बहुत बहुत धन्यवाद,,आपने अपने मताधिकार का प्रयोग किया है,मैं ये बता सकता हु,,क्यों कि आपकी उंगली पे स्याही का निशान दिख रहा है😅😅😅
बिल्कुल दोस्त, सही कहा आपने ❤️👍
Yes ofcourse sir ji, half bridge ant ATX power supply is also the most important topic of electronic appliances because every appliances first requires is power supply without power how could we start it at all anyway sorry sir ji my intense is not to ask you to start topic of led tv main board in between any way, thank you for your response sir ji pranam ❤ 1:08 1:11
Thank you brother ❤️👍
Veri nice sar
Thank you so much brother ❤️👍
sir apki har video bahot badia hoti hai magar app please kuch aisay circuit pe kam kardo jis main SMD component hotay hai sir hum ko smd coponent ko check karna aur trace karne main bahot dikkat hoti hai kuch es tarah samjado jisa k app ne LM358 TL431 ya har IC ko pin trace karne k video banaia hai wo bahot badia hai so please sir we are wish and request to you SMD circuit pe fox kardo sory if you mind this my words
Ok dost, smd par bhi bana dunga 👍
Thanks sir ji 🙏🙏🙏🌹🌹🌹👍👍👍👍👍👍👍👍👍👍
Most welcome brother ❤️👍
❤ sir hriday se namaskar
🙏🙏🙏🙏
Very good❤❤❤❤
Thanks 🙏
Sir half bridge sms ke fault kon kon se hoten he. Uske liy jarrur vedio banana
Wo toh banayenge hi dost ❤️👍
What is the role of R6,R7,D1,D2abd C7 in this circuit?
Sir ji pranam could you please take the topic on led mother board and it's working principle
Yes but let me first complete the Half bridge and ATX SMPS series ❤️🙏
Sir computer power supplies k concept b clear krden hamary me ne boht videos daikhi net pe sirf repairing ka bataty hn concept clear nai karty.
bro can you do videos of Computer SMPS branded like HP and Dell PC SMPS .
Coming soon brother ❤️👍
Intel server ki smp g36234-008 Jo 12volt 1600watt 133 amp hi me us ko 14.5 volt Karna Chahta hoon mgr Us ka feed back samjh Nahin aaraha kuchh help kar dingi
IC kon si lagi hai usme ?
22:25 sabse pehle to pranam Guruji sir aapne jo yanha samjhaya ki switching kaise ho rahi hain pulse transformer ke driver transistor pe lekin mera ye doubt hain ki
Wo transistor ko switch krwane ke liye hamlog negative deke off kyun krte hain pull up configuration mein usko direct on kyun nahi krte pul down configuration mein matlab ki ic ke collector ko positive pe connect kr do and emitter se positive drive le lo aur driver transistor ke base pe de do simple but yanha negative switching ka use kyun kiya gaya hain matlab ki jab ic ke andar ka transistor off hoga to driver transistor on hoga and jab andar ka transistor off rahega to bahar ka transistor on hoga
And ek problem aur hain ki jab output mein matlab ki smps main output section mein jab voltage high hoga tab error amplifier on ho jayenge non inverting pin ka voltage jyada ho jaane ke wajah se tab op amp ka output bhi high rahega to us time wo ic ke andar Wale transistor ko off kr denge lekin driver transistor pe to voltage High hi rahega kyunki wo pull up hain to smps ke output section mein tab bhi voltage badh hi rahe honge to ye output ko control kaise kiya
1- IC ke andar NPN transistor Lage hain, aur NPN transistor negative supply ko hi switch karta hai. isaliye bahar Wale transistor ko pull up karke negative signal Diya jata hai.
2- output voltage high hone par jab OpAmp ka output high hoga, to wo transistor ko off nahi karta hai, kewal uski duty cycle ko wahi rok deta hai. Switching band nahi hoti hai dost. Ye baat maine video me bhi already batai Hui hai...😊
@@vccground-hindipranam guruji npn transistor ke collector pe agar positive voltage diya jaye to wo use emitter se out krwa sakta hain bs 0.7 volt ka drop aayega actual voltage se and is chiz ko use krke ham is ic se mini inverter bhi bana sakte Hain kya ye jo abhi Maine bola wo sahi hain sir jiiii agar sahi hain to power supply mein is configuration ka use kyun nahi krte
And sir Second wale ke baarein mein jaisa ki aapne video mein hi bataya hain lekin ic apna duty cycle maintain ya constant kaise kr leta hain jabki normal flyback power supply mein agar output mein voltage badhta tha to ic ka pulse low ho jata matlab MOSFET off and jab jab output mein voltage km hone lage to pulse high hone ke wajah se MOSFET on ho jata tha aise krke output mein voltage stable kiya jata tha lekin is smps mein kaise duty cycle constant ho raha hain ek baar agar time mile to kisi video mein explain kr dijiyega sir
नमस्ते शर आप क्या कोई क्लाश चलते हैं अवर काहा से कौन सा देश अवर कौन सा जिला से
शर जी प्रणाम आप को एम्पीयर को कम जादा कहा से करें
दोस्त मेरा क्लास सिर्फ यूट्यूब पर ही होता है, और कही नही होता है 🙏
आपका समझाने का अन्दाज बेमिसाल है हर चीज को बारिकी के साथ समझाने की कोशिश एक अलग ही लगाव/ सोच पैदा कर देता है जिसे भावनाओं से ही समझा जा सकता है । ये विषय जटिल (हमारे लिए) होने के कारण कुछ बॉन्सर से चले जाते है इसके लिए वीडियो को कई कई बार देखना पड़ेगा आगे इसी क्रम में R6,R7 और इन्ही के just बगल मे D 1&2 और C7 दिखाये दिये शायद उनका जिक्र नहीं आया। कृपया अगली वीडियो में थोड़ा प्रकाश डालने की महेरबानी करना जी Iमेरी भूल हो तो क्षमा चाहता हूं - धन्यवाद
शुक्रिया सर। जैसा कि आप ने खुद ही कहा कि ये विषय जटिल है, इसी वजह से मैंने इस सीरीज की पहली या दूसरी वीडियो में ही कहा था कि इसमें मैं बहुत गहराई में न जा कर, सिर्फ उतना ही विस्तार से बताऊंगा जितना इस सप्लाई को रिपेयर करने के लिए आपको जानना जरूरी है। उन्ही कंपोनेंट की बात करूंगा जो इसमें अक्सर खराब होते रहते हैं। मेरी कोशिश यही है कि यह विषय जटिल होने के बावजूद जिस तरह आप सब को आसानी से समझ आ पाये, उसी तरीके से ही बताऊं। अगर एक बार आप समझ गये, उसके बाद हम गहराई में भी उतर पाएंगे, वरना किसी को कुछ समझ नही आएगा, सब ऊपर से ही निकल जायेगा 🙄
Aid Mobarak Saïd dear Brother
sir jasa k apne phle b smps board ka diagram banaya tha sir wase hi ap Half Bridge smps supply ka diagram bana ke guide karen plz sir asal mein sir jo ap khud se copy pe diagram bana kr guide krte hein wase hi yah b guide karen gy to sir sab log jaldi pick kr len gy Sir mein adeel khan
Adeel Bhai, flyback SMPS ka circuit chota hota hai. Par half bridge me components jyada hone ki wajah se circuit bada ho jata hai, isliye iss baar print kar liya isko ❤️👍
@@vccground-hindi sir ap bohat nice hein sir apke taref ke liye alfaz kam hein sir apse aik guzarish our b hei agar apko bora na lagy to sir ap jo half bridge smps yah koi b smps guide krte hein un smps board ka full diagram our model name b Description mein diya karen sir plzzzz naraz mat huiye ga sir apka ahsan to phle hi bohat zada hai hum sab par
Sir please e rikshaw charger pe samjhaye
Good
Shukriya Dost ❤️👍
Sir in my mind one cofusion please clear in DC working 250 volt /1000 mfd at this we able to use 1200 mfd Or below 1000 mfd than which type problem created . Another question please explain about ic ucp 1397AC pwm& in out G9051. Please give your contect number also. Thanku you
If you decrease main DC capacitor value, output voltage may drop on full load ❤️👍
Sir apasay request hai ki app ev schootors our ev 4 wheel key charger and contorle unite ke ripayring pay video banaye pl..
Thoda samay do dost, uss par bhi banayenge 👍
मेरे कहने का मतलब इस सर्किट को ही अन्य और आईसी का भी हम स्केमेटिक सर्किट डायाग्राम डाउनलोड कर सकें इसलिये लिंक मांगा था, अगर आपकी इच्छा और कृपा हो तो।
धन्यवाद!
सर्किट डाऊनलोड करने का लिंक डिस्क्रिप्शन में दिया हुआ है दोस्त ❤️👍
❤❤❤
Sir
My power supply is for 24 V but I am getting only 8 v on output point what will be the reason?
Check feedback and VCC section...
sir 5volt ka ek charger ata he jo ki sirf ek tranasiter se kaam karta he us transistro ko on off kon karta he uski working samaj me nahi ati us transistor ka number he hlb120a iska ek video banaiye please
Us transistor ke base ko ek capacitor se trigger karwaya jata hai dost. iss par ek video bana dunga 👍
❤❤ 👍🎉🎉
Sir AP ye diagram Khan sey nikalthey ho is pe vedio banao sub ko aasani ho
Sab internet par hi search karta hu dost ❤️👍
Ye C24 ka fayda thikse samaj mai nhi araha Bhai. Agar ye capacitor hatake direct kar denge to kya hoga?
C24 iss SMPS ka startup capacitor hai jiski wajah se Switch start hoti hai. Agar aap isko hatake direct kar denge to +155v wali line 0V line ke saath direct jud jayegi aur short circuit ho jayega..aur fuse bhi udd jayega dost ...
sir, where can i get this smps board and what are it's specs
It's a 5V 20A power supply. You can get it online ..Or can buy from us also. We can ship anywhere in India.
👍👌🙏
Sir thanks for reply but you not to give reply about upc 1397 please give your address to send the same charger to repair & explain.
For repairs, please first share pictures of your SMPS on my WhatsApp number 9310248748..
Sir please clear my question in the output R17..... 19 the resistance are 1. 2 k in the parallel the resistance to low but why in the out put the volatage are not to decreased or low.
PFC power supply ka video banana
👌👌👌👌👍👍👍🙏🙏🙏🙏
Sir नमस्कार
Mughey yah बताएं कि uc3845 का use kaha-kaha कर सकते है येक smps मे mosfeet skt 0260 है और 6leg वाली driver है जोकि खरब है मै uc3845 का एक driver बनाकर लगाया जैसे ही power सीरीज मे दिया और out पुट पर led connect कर रखा था led glow हुआ पर एक आवाज आया power कनेक्शन हटा ker देखा तो mosfeet, uc3845 और 22 ओम का रजिस्टर जोकि uc3845 के 6 no पिन पर था जल गया. Please जल्द बताएं कि आयशा क्यों हुआ.
UC3845 50% डयूटी साईकल पर काम करती है। आप UC3842 या 3843 लगा कर देखो, जो कि 100% डयूटी साईकल पर चलती है और अधिकतर smps में काम करती है 👍
Sir नमस्कार कृपया बताएं कि SK0260 mosfeet के जगह पर क्या 4N60 या 5N60 लगा सकते है क्या आप नै बताएं कि uc3845 के जगह पर uc3842 या uc3843 लगा ker देखे. Please reply.
Sir smps का पहला वाला mosfeet skt 0260 तो खराब होगया है इसलिए इसके जगह पर 4N60 या 5N60 साथ मे driver uc3842 का connect karnay से smps स्टार्ट हो सकता है क्या. प्लीज जल्द reply दीजिए.
@@bedveyashsharma6131 लगा सकते हो दोस्त 👍
Thanks sir lets तो try karkay देखते है.
Sir ap ka channel ka catagori kya hai
Science and technology
Thank you sir
Vfd ki splay per video bnain
Kuch samay baad wo bhi banayenge dost ❤️👍
The negative resistor most be lower not higher I see some much smps get damaged because the designer refuse to ground the feed back pins properly the many current ripple in the pwm duty cycle falsely turn on the gate when pulse is off causing the death of the switch if the negative us lower the current ripple is synchronize to the turn on and turn off that's hiw it's done
Brother, that negative resistor act as a Gate pull down resistor only. Pull down resistor value should always be higher than the signal resistor, otherwise the positive signal won't reach the gate due to higher negative potential already present there ..
Laptop ki SMPS repair ka video sir please dejia
Aap mera video number 45, 46 aur 48 dekhiye dost. Usme laptop charger ka hi baat Kiya tha ❤️👍
Guru jee PFC suplay explen care
Karenge dost 👍
पहले SMPS से डरते थे अब रिपेयर करते हैं
ज्ञान का दिया ही डर के अंधेरे को दूर भगाता है 👍