{577} TNY266PN SMPS Have No Output Voltage / Switch Mode Power Supply IC Not Switching, How to Fix
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- Опубликовано: 21 сен 2024
- TNY266PN SMPS Switch Mode Power Supply Have No Output Voltage / IC Not Switching, How to Fix no power problem. TNY263P, TNY263G, TNY264P, TNY264G, TNY265P, TNY265G, TNY266P, TNY266G, TNY267P, TNY267G, TNY268P & TNY268G are TinySwitch-II family offline switching smps ICs to drive flyback toplogy, its switching frequency is 132KHz. Features
it Reduces System Cost becasue it uses very minimal components to design the switch mode power supply.
these are fully integrated auto-restart for short circuit and open loop fault
protection - saves external component costs
Built-in circuitry practically eliminates audible noise with ordinary dip-varnished transformer
Programmable line undervoltage detect feature prevents power on/off glitches - saves external components
• Frequency jittering dramatically reduces EMI (~10 dB)
- minimizes EMI filter component costs
• 132 kHz operation reduces transformer size - allows use of EF12.6 or EE13 cores for low cost and small size
• Very tight tolerances and negligible temperature variation on key parameters eases design and lowers cost
• Lowest component count switcher solution
• Expanded scalable device family for low system cost Better Cost/Performance over RCC & Linears
• Lower system cost than RCC, discrete PWM and other integrated/hybrid solutions
• Cost effective replacement for bulky regulated linears
• Simple ON/OFF control - no loop compensation needed
• No bias winding - simpler, lower cost transformer
• Simple design practically eliminates rework in manufacturing EcoSmart™- Extremely Energy Efficient
• No load consumption less than 50 mW with bias winding and less than 250 mW without bias winding at 265 VAC input
• Meets California Energy Commission (CEC), Energy Star, and EU requirements
• Ideal for cell-phone charger and PC standby applications
High Performance at Low Cost
• High voltage powered - ideal for charger applications
• High bandwidth provides fast turn on with no overshoot
• Current limit operation rejects line frequency ripple
• Built-in current limit and thermal protection improves safety Description
TinySwitch™-II integrates a 700 V power MOSFET, oscillator, high voltage switched current source, current limit and thermal shutdown circuitry onto a monolithic device. The start-up and operating power are derived directly from the voltage on thenDRAIN pin, eliminating the need for a bias winding and associated circuitry. In addition, the TinySwitch-II devices incorporate
auto-restart, line undervoltage sense, and frequency jittering. An innovative design minimizes audio frequency components in the simple ON/OFF control scheme to practically eliminate audible noise with standard taped/varnished transformer construction. The fully integrated auto-restart circuit safely limits output power during fault conditions such as output short circuit or open loop, reducing component count and secondary feedback circuitry cost. An optional line sense resistor externally programs a line undervoltage threshold, which eliminates power down glitches caused by the slow discharge of input storage capacitors present in applications such as standby supplies. The operating frequency of 132 kHz is jittered to significantly reduce both the quasi-peak and average EMI, minimizing filtering cost.
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Sir you are a great help to us, who are interested in fixing and are keen to learn ways that your have mastered these mysterious components. God bless you.
Gracias!! Un genio...me gustaria que doble sus videos al español. Ayudaria a muchos tecnicos latinoamericanos. Un gran abrazo desde argentina.
en primer lugar, estoy agradecido por su valioso mensaje. traduje este video en español. además, agregaré traducción en mis próximos videos y también traduciré las conferencias importantes existentes
los mejores deseos y gracias especiales
Thank you very much for this knowledge and experience.
This video speaks to the core problem with startup I am trying to understand with a treadmill PF906 PSU that employs a TOP244YN.
The DS says:
"When rectified DC high voltage is applied to the DRAIN
pin during start-up, the MOSFET is initially off, and the
CONTROL pin capacitor is charged through a switched high
voltage current source connected internally between the DRAIN
and CONTROL pins. When the CONTROL pin voltage VC
reaches approximately 5.8 V, the control circuitry is activated
and the soft-start begins. The soft-start circuit gradually
increases the duty cycle of the MOSFET from zero to the
maximum value over approximately 10 ms. If no external
feedback/supply current is fed into the CONTROL pin by the
end of the soft-start, the high voltage current source is turned
off and the CONTROL pin will start discharging in response
to the supply current drawn by the control circuitry."
Is it correct to say, that to understand the startup process, we need to interpret the waveform diagram of the startup counter, and that the whole process takes place in a very short (
Mashallha very nice and useful tutorial. It is really very helpful too. Enjoying watching. 💞💞💞💞
You always shearing good knowledge about electronics' thanks so much.
وعلیکم السلام ورحمتہ اللہ وبرکاتہ،
ماشاءاللہ
سبحان اللّہ
الحمد للّٰہ رب العالمین،
جزاکم اللّہ خیرا کثیرا 🌹🌻🌺🌸🌻🌺✨💛💖💖💝🌹
best regards
Thank you very much for this great learning possibility.
You are welcome!
Wouldn't hurt to check R2 and R3 as well, those 1 Meg resistors. Those have a tendency to drift open and that could stop it working too.
you are exactly right but these don't effect because these are 1M ohm and so large values resistors very very rarely damage, sometimes their resistance may differ slightly but it will remain in limit
even if these resistor will open it will not effect because the En pin will float and the ic will fluctuate
otherwise it have to start switching
فتح الله عليك و جزاكم الله خيرا
اللہ یسلمک و یسعدک و یبارک فی عمرک
بارك الله فيك أخي حسيب
Sir you have the best explanation of SMPS on RUclips. I have a power supply for a surround system player.I have no voltage on output capacitors. Relay is not clicking. I changed all output capacitors with new ones.I have MIP2F20MSSCF Power Supply Control IC that is not switching. I have 5.6v VDD on Pin 1 . Drain pin 5 i have same voltage as DC which is 150 v. AC Voltage is 115v . Pin 4 VCC is 7.85v . Feedback pin 2 is 1v stable.Optocoupler voltage Fluctuating between 1v and 0v.Can you tell me what to check next?
As always a very informative video! Thank you for your time and effort!
Dear Haseeb, great job as always.🙂
Please make a video how to connect 2 SMPS 12V line in parallel for more current. I have some totally same SMPSs and I want to connect them in parallel. I think many people interested in how to do that, what they have to take care of...
Many thanks in advance.
Wsalam bhai mashallah nice sharing like dn stay connected my old friend 😊
best regards
Very useful in the electronic knowledge 👌 thanks for sharing
Excelente explicación , gracias por compartir esta información
Good tiching karte hai 👌👍👍👍👌👌👍
Terima kasih telah berbagi skema dan cara kerja switch power suply dengan benar
semoga sehat sejahtra selalu
thanks a lot dear brother
Good work 👍🌹 stay connected
best regards
I thought there should be the same voltage at drain point and at bulk capacitor. Why are they different?
Thank you so much my friend.
زبردست ویڈیو ہے بھائی🌹🌹👍
Very good and useful information sir thanks for sharing this knowledge to us
it is my pleasure
Sir, very nice explanation 👍 but how can we test this ic pin by pin using multimeter
You always shearing good information about electronic 'thanks
Wonderful video dear friend, have a happy day!!!
بہت ہی قیمتی معلومات
جزاک اللّہ خیر 💖💝🌹
Jazaak Allah khair
nice explain every time .....la jawab sir ji.....
Thanks and welcome
Hvala na savetima, mnogo mi to znači !
moje zadovoljstvo
Sir if Pwm ic burn or wo can not get part number of any pwm ic so if it is possible to replaced any pwm ic with tny family i also know about how we can get part no of ic,s because i watch your all video so my question is just for knowlege gain
Shahid Bhai aapse gujarish hai kya aisi बार-बार jalne per ghot ke charger ke bare mein mukmmal bataen aap bahut acchi tarah batate ho please hansi bhai
Haseeb bro i m saying to you many time plz share a videos on charger ev segment from zero to end how to designe on half brige toplogy and pfc based ev charger can you explain it please do it i m so very happy
Once please
,👍 Zabardast very nice information my dear friend ❣️
Beautifully explained
Thank you so much
You have a new subscriber
Mashaa Alla brother 😊 give you super 👍 keep safe
Waalaikumussalam wr wb
Good job brother 👍❤️
Khush raha bhai Ameen Ameen
Aameen
Jazak Allah khair
Very good sir
thanks a lot
Good information i like your video Sir 👍❤❤🌹🌹
Many many thanks dear brother
Very useful information and very well explained! Do you have a video for diagnosing str a6100 series circuit issues?
You are The Best! Thank you!
thanks a lot
Assalam Alykum.
Nice very infomated video sir plz urdu ma bhi yea video upload kardain.
Shukriya.
VeRY useful in the electronics knowledge 👍
Thank you for sharing useful knowledge sir
Good explain thanks for sharing
best regards
Very good explain. Thank you sir.
Sir, I hope you are doing well. I have been facing problem with my pc power supply. The problem is mainly a buzzing sound when the power is introduced to the power supply and the buzzing sound increases when a load is given to it. How can I ge rid off this problem?
Hi Professor.
It was great. Please consider a circuit of miner power supplies such as the morche model with the ant shape engraved on it.
Hi.
In this video at 5:30m you said voltage between drain and source should be around 5-15 volt. Can you explain how and why?
Thank you
Thank you very much sir 🙏🙏🙏
Most welcome
Great video mashaAllah
THANKS A LOT DEAR SISTER
Thank you so much Sir,
I get a lot from you,
Sir is there any alternative way to replace this ic
I mean any module like ds0088? If any then please tell and how to use that
Thank you again
Sir can we use a MOSFET after this pwm ic drive pin to get more power OR can a offline pwm ic run MOSFET by it's drive pin .
Good Morning & Good Wishes Dear Brother Loved It # 88
Many many thanks Zargar bhai
Thanks for sharing this awesome video
best regards for your valuable comment
اللهم بارك
وفقك الله
Sir when i checked the smps with this ic i found varying voltage of 2 to 2.5 across the drain and source.What will be the problem
Hello sir, how do we know the main winding and the auxiliary winding and how do we know the starting of the coil of the fly-back transformer.
we can differentiate the windings but we cannot the starting edge of winding.
it can be guessed but for authentication it must be disassembled
Thanks for sharing
best regards and special thanks
Thank you so much dear brother
Very good. Thanks again.
Thank dear
Very well
Great ✊✊✊✊✊✊✊🔥
Superb
best regards
all the smps you did have auxiliary winding. Does it mean they must all have auxiliary winding
some offline switchers don't have aux winding,
Great videos like always, can you make one how to test SMP with oscilloscope?
excellent analysis
Nice info
Thanks for searing
I have an igbt module Dp35l600 and i did not get the date sheet and check it
MashAllah Bhai
thanks a lot bhai
sir TNY176PN not available in online off line market sir ...sir What can be equivalent to this ic ??? Tel me please Master 🙏 ❤
Assalamualaikum dear Hasseb, can you please show me the transformer detail of this project(TNY226).Thinks
Thanks so much
I have LA-520 based powersupply. DC voltage of 330v is available in input. but no output. could you help me out. thanks
Brother my smps with uc3844 ic working fine giving 24v supply properly upto 30 or 40 seconds after turn on the power supply.after that tripping on over voltage.Again turn on the second time directly showing over voltage indication. Pls find the possible reason for that?
Sir i have a faulty sony laptop charger. The control ic used is 810 8 pin ic. Pin 1 of ic is ground and pin 7 goes to the capacitor of soft start section. Both pin 1 and 7 shows short. When ic is remove from board neither the ic nor the board shows any short but when ic is put back it again showing short . What can be the fault.
how can i increase the voltage output to 15v and maintain 3A. Input voltage will range from 24v-300v . What components should i replace?
Hello sir,
I am receiving quality engineer (electronics -smps and etc...) junior and I inspect just part number (on-part)discription only, so please help me how I need to test those components using millimeter or else.
ASAK please explain about Inverex AC voltage stabilizer working and repair. It have only 1 relay and small transformer. Thank you
There are smps tha do not use octo copular and tp14 why are they manage their voltahe and how can i control them
Really excellent idea
Great job👍
thanks a lot
Super video
thanks a lot dear sister
Salamou alaykom ,Could you please advice for a toshiba laptop charger which giving 15v instead of 19v !!!!! ! thank u.
assalam alykum sir top265 ki frequncy kesy maloom ker sakte hain kya is ka b formula hy jesy uc3842 may hum check kerte hain
Is it safe to operate a device after doing this fix ?
yes it have to work normally
I did this on IC OB3368AP and a 5A diode in circuit is getting extremely hot 🔥 🥵 any advice? I used a 27k on pin 18 to ground .
Sir mere pass top224yn power integrated ic hai , 6 pin wali. maine, 3 pin wali ic order kri thi, lekin unhone galti se 6 pin wali bhej, di Sir iski data sheet nhi mil rahi , iska number search karne par 3 pin wali hi show hoti hai, iski pinout par ek video bna dijiye sir ,
informative video
thanks a lot dear
Sir snubber circuit me bare ek aur video banadijiye plz
Sir. Iam ur subscriber. Ihave small doughnut. Ic no ncp1027
It not available here. Alternate ic no pls tell me sir.
Very good video
Rispetto 👍
cordiali saluti e ringraziamenti speciali
ماشاء الله تبارك الله خوبصورة هي
Hii brother
Me Mandeep soni muje muje DC 100v 50amps yani 5000 Watt output or input 85v-230v AC me smps circuit design krna he full bridge switching ke sat to. Kya? Me uc3843 ic use kr skta hu or circuit diagram design kese krna he jra bthana ji
full bridge switching keliey aap KA7500 or SG3525 or TL494 use karein aur PFC circuit use karein
@@HaseebElectronics thank you for reply
But mene smps circuit diagram calculate ke aapke sare video dekhe he unke anusa kosis kr rha hu pr problem aa rhi he or transformer me ring core use kr rha hu or calculation ke liye software pr dc rail me capacitor bhut bda calculate ho rha he or currant sance resistance konsa use kru jra details me btae jra me middle class family se belong krta hu to muje esa kuch btao jisse minimum cost me me ye bna pau or zvs drive me use kr sku oe ka7500 to 16 pin ic he me ske bare me kuch bi nhi janta ji thank you again
yes dear
aap ko dc rail keliey 5000Watt ka PFC circuit lagaana ho ga
i will explain about ka7500 in practical
@@HaseebElectronics thank you brother
👌
best regards and special thanks
Nice 👍👋
Good job
Mashaallah
thanks a lot sir
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Tny276 ic Chiya pliz btqy kha sa Mila ga DC invartar ac Ka PCB board ma lagna ha
Tny279pg and tny 279pn are same?
both numbers are same
just tny279pn is pure matt tin (Pb Free)
and TNY279PG is with Pb material (Lead)
Thank you bhaiya