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- čas přidán 11. 01. 2020
- Hello Friends In s video we are going to discuss datasheel of
UC2842 UC3842
UC2843 UC3843
UC2844 UC3844
UC2845 UC3845
UC2842 UC3842
UC2843 UC3843
UC2844 UC3844
UC2845 UC3845
we also discuss about deep working of these ICs through its datasheet.
1
COMP (Comparator)
It is an output pin which outputs low impedance 1MHz single based in the difference between he set and current voltage. It is normally connected to the voltage feedback pin of the IC through resistor and capacitor.
2
VFB (Voltage Feedback)
It is an input to the error amplifier that inside the IC. The difference in voltage level is supplied to this pin
3
Current Sense
A shunt resistor is used to monitor the current through the circuit and the voltage across it is provided as a feedback to the current sense pin
4
RT/CT (Timing Resistor/ Timing Capacitor)
The IC has an internal oscillator which can be set using an external Resistor and capacitor connected to this pin.
5
Ground
Connected to the ground of the circuit
6
Output
This pin outputs the PWM signal based on the feedback provided and we can use this to switch the power electronic device.
7
Vcc
Supply voltage for the IC (Nominal 11V)
8
VREF
Reference voltage based on which the PWM signal is produced.
Specification
Current-Mode PWM controller
Operating Voltage: 7.0V to 8.2V
Output pin current: 1A
Analog input range: -0.3 to 6.3V
Oscillation Frequency: 52 Typically
Gain: 3V
Maximum source current: 22mA
Low output Voltage: 0.08V
High Output Voltage: 13.5V
#PWM_IC
#UC3843_Design
#Boost_Converter_Design
#Buck_Cunverter_Design
#SMPS_Design - Jak na to + styl
Explained very well, nice.
Glad you liked it
زبردست کیا بات ھیں آپ کی
Now I am clear about working thanks sir,😊
Good morning sir very nice
wah ji bahut achha explain Kiya. sare doubts clear hogaya
very usefully knowledge thank you sir.
😃Very detailed explanation on related circuits in general and about the device in particular. Hats off to you man, You are really awesome! 🙏
Keep your support
Nice bro, good explanation.
Wonderful great job
Vert informative
Thanks
Very good
Very good sir 🙋👍
Sir apne Dil khush Kar diya
AWESUM EXPLANATION.....THANX
Wow super sir 👌👌👌👌.... Very nice
Thans for valuable information
Mai tu AP ka fan ho gaya Hoon or AP ka subscriber bhee
Excellent.
Good example
GOOD JOB MAN
It would be great if you could explain a practical circuit using this IC
Very good information
Nice
Good sir
Brilliant 😎😎😎
Very nice sir
Online ups repair per video banaye
Good
We need more videos like this on every single ic
Please include name of those ics
good effort
Nice 👍
Very valuable information.Thanks a lot.Please make a video on ic 494.
Ok
Thanks sir .
Good tiçhing 👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍
Very nice
Thanks
Thanks sir good guide?
very deep information
Nicely explained
If no voltage appears on 8th pin after completing the circuit ,then the whole circuit collapsed,what could the cause
While same circuit is working in other pcb please explain
Thanking you in anticipation
Thank you sir ji
Sir, it's very good explain. So thank you.
Can you help me to make a Battery manage system for lead acid battery bank?
Thanks
Agar ye ic kharab ho gai to kya UPS Battery se chalna off kar dega par AC se chelega
Qyu ki mera UPS AC pe chal raha hai lekin jab bhi AC se Battery mode pe switch karta hu tas UPS off ho jata hai nahi to relay ko continuously switch karta rahta hai
By the way love your informative video
One like
AapkaBatteryKoCheckKiJiyega,ShayedAapkaBatteryDownHoChukaHogaKyunkiYe
SamasyaMujheBhiAayeThiAurEkBandheKiSalahPeMaineBattKoChangeKarneKeBaadYeProbGayabHoGaya,TryKaroNa....
Nahi jab nayi battery lagayi to vo ic heat hone lagi by the way I am same person just different account
👌👌👌👍
Sir 3843 full details video banvo
Sp1602 ic par video banana please
flyback transformer designing formulas for 3842/3/4/5
Pwm 450 mili volt maltimiter dc rang pay 11 v dc show pwm voltage gain kay sai karay
Please explain more about the compensation pin the ic.
Thankyou sir.
UC3842-3-4-5 me difference kya hai ?
Buck converter ko b explain katoye.
Robustness, UVLO, etc
hello , thanks for this video and thanks for your big works , please what's the minimum Vcc of work?
12v
Sir. ir 2153 ki full detail video banaye please.
Ok
Hi brother mere pas ek ic he LD7550 BBN lekin ye harab he ye milnahiraha he to iske badle me konsa ic used karo please batado
Bro I need help on this ic how to control the width of PWM, I could easily do it in SG 3525 ic and TL494. I tried a lot but on this UC series ics I couldn't vary width.
❤❤❤❤❤❤❤❤
Sir ye ic kitane ampere tak thik se kam karegi? Please reply.........
Sir Top ic pe video banao
Uc3842 ke sath kitne watt tak ki SMPS banaya ja sakta hai ?
110V10A ke liye kon si topology use karni hogi ? Please reply
Ap smps welding machine ke video share karoo plz sir we all are waiting for ur video plz
Bhai please btao is ic ka use krke SMPS bnana h mujhe amplifier ke liye kitne watt ka bana sakte hai
Maine aaj tak 240 watt tak banaya hai , but isse high wattage ka bhi ban sakta ha
@@Aviprink bhai Maine load test Kiya tha bana kr mere SMPS ne 19v 8A output diya jo ki 150W h lakin isse dual power supply nahi nikal Rahi thi or na hi higher voltage ban pa Rahi thi jaise 45-0-45 is chakkar me mere MOSFET or ic bahut kharab hue..... Mujhe koi simple or high watt ka circuit chahiye
Uc3842 se 24V3A ka SMPS ban sakta hai ? Aur is SMPS ki input range 100-300 ho sakti hai please zarur bataiye.
Can u make a video on cq1265rt
Sir aaj kal har SMPS me pwm ic ka upyog kiya ja raha h
Par kuch SMPS me ic no ko mita dieya jata h
Usme kis no ke ic lagaa h patta nahee chalta
Ke example uc3842 type h par usmen feedback pin 7 voltage pin 2 h
Ek baat aur ek SMPS me problem h ke pin 6 par pwm Freqvancy bahut slow h
Aur ye pin 7 par b pals batataa h
Hello sir, uc3842a ki pin number 7ki voltage vary ho rahi hai jabki output voltage 12.15V constant hai.
120volt input pe 13V, 200V input pe 20V, 250V input pe 25V. Aisa kyon ho raha hoga. 12V4A SMPS me aisa nahi hai 80V input se 300V input tak 13.14 v fix hai
please explain flyback transformer calaculations with 230V AC input operation
Ok
Lithium battery charge ke baire main video banaya .jo e Rickwa e scooter main lagta hai .
Sir I want you a simple but effective high current adjustable smps circuit diagram and explain
Ok
Sir uc 3846 ko bhi explain kar do
Ji
Sir ek request hai e rikshow back 48 vold to 12 vold converter ful explan ki jiya ga.
Kiya hai. Bahut se videos hai. And uska final bhi aayega
How can I control pwm.I l like to make speed control of dc motor to control pump.
Sir ir2110 or ir2113 par video banaye or in donu me difference kya h
Tl494 per videos please sir
About RT/CT. A Resistor is connected to Vref pin(8) and RT/CT pin(4). Then a capacitor is connected to RT/CT pin(4) and then it should be connected to ground but NO. It is connected to Isense pin(3). Why?
For slope compensation for I Ref
Output current ko bhi monitor Karwa sakte hai kya. To kya circuit modification Karni paregi???
Reply to do...
UC2844 vcc not stable /fluctuations observed on vcc and reference pin after replacement of capacitor its not get stable /some time its solve by replacing capacitor
requesting you to
make an video on this problem
Kindly msg me 9304534464
sir is ki frequency ka pat karnay ka formula sikha dein plz
Uc3843 output may 11 volt hay oscilloscope may 450 mili volt pwm dekha rahi hai ic sahi hia? Mosfet sweching nahi ho rahi hai mosfet on honay kay bad off nahi ho rahi hai mosfet hit hokay kharab ho jata hai
With MOSFET connected Check in oscilloscope if you got 12v or more then 12v for proper MOSFET drive..
Uc 3845 8.54 volt input per start nahi ho rahi h
i'm working on this ic, but facing a problem at current sense pin, for one pwm cycle it works well (ramp signal is detected at it)but at next pwm cycle it stops at very start due to high noise, again at next cycle it works well but at next it stops pwm at very low duty, can to make a video on its practicle circuit for flyback converter?
Use star ground technique with decoupling capacitor close to current sense pin
@@Aviprink, i have tested it on breadboard, now i will make it on a pcb board, with star grounding.
On breadboard it will not perform well due to parasitic capacitance. Use good quality PCBs with proper grounding technique to reduce noice.
Is ic ka rt/ct calculation kaisa hai
How can we set the duty cycle
Sannaber circuit ka diode bar bar born ho ja rha h .sir kya problem ho skta h.
Capacitor ka value kam kariye
Ok sir dekhta hu karke.
2576/34063 ic
Ok
Sir if i draw a circuit using 3842 can you explain me how it is working in circuit
Ok
Sir ic 3843 pin number 6 pr volt nhe arhe uski Kia problem ho sakti ha?
Kafi reasons bataya hai kindly watch our full series
Hello sir
Kaya ham uc3843 ko
Soft start pwm kar sakte hai
Waiting for answer sir
Kindly msg me 9304534464
Hello bhai
avi taak mene uc3843 use karke koi vi buck converter ki video youtube pe nhi dekha hei or na hi koi circuit diagram , ek circuit diagram hei (experimental ) lekin wo wrong hei, mujhe plz help kare, mei aap se baat karna chhatha hu uss diagram k upar lekin yaha youtube pe photo nhi bhez sakta ! aap ka email kya hei ?
You can what's app me 9304534464
Ka hua bhai wo smps welding machine ke video ka bhai
Sir circuit m kis kis pin par check kare k ic work kar rahi hai .gate pin 6par kitna volt hota hai.plz reply sir ek circuit work ni kar raha hai.i use it first time so.
Jo apka vcc raheta hai wahi is ic k pin no 6 pe hota hi 1ya 2 volt kam rahenge
@@pacificelectronic519 thanks sir.sir agar 12volt vcc hai to aur pins par kitne volt honge
1aur 2 comparater pin hai agar booster design karna hai to pin2 pe 2.5v rahega, 3 pe current sens. .9 se 1.2v tak rahega 4pe 5v 5 gnd 6 vg as vcc pin 7 vcc pin8 ref 5v
Ap abhi tak nahi dela bhai
Very good but unfortunately only in Hindi.
Now thinking for English channel.
@@Aviprink Your technical knowledge and ability to impart it to others is proved by this video. I was able to follow bits and pieces because Hindi and Sinhala has many common words. Starting a separate English channel will split your viewers between two channels. Its better to have a transcription in English overlaid on the video or to use both languages when explaining. Having a heading in English attracts English readers and unless you cater for them they will get disappointed and will not watch your channel again. Its a shame to lose this large audience. For a non Hindi speaker what you say is Greek. I am subscribing in the hope that your next video will be understandable to an English readership. Good luck
@@sisirasamarasekera9551 I will try to upload videos in hindi with english subtitles.
Mosfet drive nahi horaha hay 3205 m output may singnal hay oscilloscope pay dekha
Drain to source check kijiye. Use proper islolation transfarmer to power Oscilloscope. To avoid any kind of damage..use 100x probe or any kind of high voltage probe.
Mere Bhai aap ko knowledge h to MOSFET ki datasheet ko kese understand kare is par video bana digiye q k CZcams par AK BHI video Nahi h
Bilkul bhai sahab. Jarur banega.
Sir boost converter of this
mppt digram ined pleag
Update it soon
Sir mere inverter 3.2 kw fronuis k mosfet waalee jagah k print jalkar khatam hogaee hay solution batao plz plz aur apna whats app no bhi dedo to pic bhi send karoon to help mee plz
Why the tittle in english when the video is not.
Sir how to work 0765str
Ok.
Sir, in English please
Audio is terrible to understand!!!
Dont understand aword jou are saying
Feel very bad as he has derived on the s subject in question in great detail fully clearing any doubts whatsoever about the associated circuits in general and about the device in particular...
@@prashanth105 i checked again. I am pretty sure he does not speak english. But he uses an english title. Why? It feeks like click bait. When using an english title that atleast put the language in the title.
अबिनास कुमार जी आप बहुत ही सुन्दर वोलते हो मैं भी आप से जुडा हमरा सर्किट बनाने को आप ने हमसे रुपये15000 ले लिए हमारा काम नहीं किया हमारे दोनों ही नं ब्लॉक कर दिए अब हम आपके बारे में जानकारी कर उचित कार्यवाही करने को मजबूर हैं जिससे आप दुसरे लोगों को न ठग सकै