Well.... no look at the RDSon of them when she is messuring them 0,7 Ohm! if she put there 15Amps there will be power loss almost 80 W on each tranzistor. They would burn instantly
@Norbydaner7 ай бұрын
@@electronicpower1826she is only the narrator for english 😃 Who made the video i think is a slavic probably russian man 🫡
@electronicpower18267 ай бұрын
@@Norbydaner looks Like it 😂
@jongjava87434 жыл бұрын
Da best explanation of TL494. Simple and clear. You make hard stuff became easy stuff to explain. Broke TO220, to new part. You are awesome, man.
@AmplifierWorld3 жыл бұрын
What a great video, very impressive, I have no words to describe
@saveearthsavenextgeneratio58105 жыл бұрын
MY FAVOURITE Channel KASYAN TV.
@SundayOwens6 ай бұрын
I need circuit diagram
@deepwidedarklight4 жыл бұрын
The interference ( 15:29 ) is actuality coming from the power supply itself. This is a Switch Mode Power Supply (SMPS) , they produce a lot of noise.
@carrizzle95863 жыл бұрын
Great Video! This is a Buck Converter build for those of you that were looking for a Boost converter. I was looking for a Boost converter. Lol
@Deep_Thoughts995 жыл бұрын
The long awaited and searched video, thanks
@7c3c72602f7054696b4 жыл бұрын
I love the ingenuity, I did something similar with smt ics.
@gregsmith22625 жыл бұрын
Thank you for another excellent video, always the best circuits!
@marcusfred44803 жыл бұрын
Very good video. You explain circuit function very clearly and the visuals outlining the parts of the circuit you are describing the function and operation of is very helpful. Found that modification to the surface mount transistor very interesting too. Thank you and keep up the good work! :)
@EduardoDiaz-zh7rt Жыл бұрын
Muí bueno ok
@EduardoDiaz-zh7rt Жыл бұрын
Todo bien
@John_Smith__5 жыл бұрын
A clear example of Chip Surgery :) good video!
@iblesbosuok5 жыл бұрын
Great video. Recently, there are many options of good PWM controller. One of them is RT9259 which applies totem pole output state. Totem pole output can prevent voltage-pumping by complex load. Cheers from Indonesia
@attilagergely67345 жыл бұрын
The input voltage range is up to 30v this means that if the ic switch to the ground (pin 8,11) between G-D the tension is higher then the maximum 20v this kill the MOSFET
@sonmai35265 жыл бұрын
I noticed that, was going to comment.
@opinair5 жыл бұрын
Zener diode is a must
@opinair5 жыл бұрын
It is possible to use n chanel mosfet using charge-pump capacitor
@opinair5 жыл бұрын
Attila....new subscriber lol
@user-pz6cx8zf2y5 жыл бұрын
Correct remark.
@rudanimukesh3 жыл бұрын
Yes, No Word To Say For Your Excellance, it is a perfect working also i made this and create some of changes for protact high voltage from input output side make a fix voltage with register and zener and fix amp for charge the battery like a mppt and put one more protaction for cut the battery current from 10% charge amps to 1% when battery voltage rise 14.2 till 14.4 charge with like 0.4 amps i have no any word to say about your expiriance you always make perfect circute with all of calculation and risk fres god bless dear my last feedback for you circute a buck convert a voltage from 15 to 90 volt with 10 amp to 50 amp and protaction of high and low side with lighting protaction revers polarity protaction and display it with i2c input support up to 700 watt low side outside voltage fix 14.4 and 50 amps and it 98% efficiancy support no west energy. in 700 watt minus 2% energy lost max 20 watt of pcb heat and 10 to 15 watt lost of cabble resistance finaly out 45amp need 45x14.4(out)=648 watt for dirext use home load with 750watt pure sine wave inverter 200 amps battery charge on day sun time in 9 hour by 20amps thankes
@Sekhar_Home3 жыл бұрын
Hello boss. Pls replay.. i need that circuit. I created with the given circuit but not got sucess .my output is there but no voltage change when changing the pot. What problem pls
@lucgauthier32014 жыл бұрын
Thank you for your videos, it’s very interesting. I learn a lot with you. I encourage you to keep doing interesting videos like this !
@krishnawa_5 жыл бұрын
I never such a good explanation about tl494 in youtube, great explanation and can you do how to design circuit with tl494
@johnconrad54873 жыл бұрын
The supply is unstable. when you show the scope waveform at 2:32 the pulses are dithering with a 10 Amp load. If you reduce the load to just a few amps it may get worse.. You cannot use the DVM to check for stability. The output could be oscillating from 0 to 10V and the DVM will show 5V. The scope is the only way and the pulses must be completely steady. In any case I give this a Thumbs UP!
@nocturnal69824 жыл бұрын
1.98 volt minimum,, not 0,,but i see the great explanation👍 ,,very well
@agsolarpower59755 жыл бұрын
Nice circuit board with great efficiency 👍👍👍👍
@user-kc2lv7xh8i10 ай бұрын
Excellent video and a very good presentation. God bless you dear!
@hosseiny19734 жыл бұрын
In put capasitor are important.and you can add a 100n capasitor at the out put to remove spayks
@kaumohlamonyane2725 жыл бұрын
That app is utterly amazing 😍
@alansailing13875 жыл бұрын
Love the Frankentransistor
@MCsCreations5 жыл бұрын
Really nice work, dude! Great little board! 😃
@ajazahmad5823 жыл бұрын
Very Nice circuit and explains.
@marceltartan47474 жыл бұрын
no need pairs of BD transistors ,in this configuration TL494 can comand directly MOS FET 's.
@metl_play2 жыл бұрын
I have never seen somebody Hacking a MOSFET before.
@thevoidedwarrantyАй бұрын
I built it & it works ,BUT , as he mentions it's not a bench powersupply ,it's a charger .because it is very noisy . At 3 amps output i get about 2.5 volts of ripple .
@electronic79795 жыл бұрын
Very good project 👍
@user-zf5rz2iy7o Жыл бұрын
The current sensing resistor (Rx) is outside of voltage control loop! The output voltage will droop with the voltage drop on this resistor (0.375V). Output voltage will not be stabilized.
@brunocaetano18504 жыл бұрын
thanks for contribution my friend!
@doriansolares12664 жыл бұрын
Very good video, power supply with circuits electronics
@nikhilrastogi4476 Жыл бұрын
You videos is very good, your explanation is very very good
@republicoftutorials60684 жыл бұрын
I have build this circuit but this circuit diagram does not work until you replace R7 (220R) to R9 (1K) and also completely remove R8 (220R) than it works great
@ugurozsoy80014 жыл бұрын
I made the circuit but it doesn't adjust the voltage and amperes. Can you help me
@victorribeiro23044 жыл бұрын
Thank you. Those changes made my circuit work.
@ugurozsoy80013 жыл бұрын
@@victorribeiro2304 can you help me
@victorribeiro23043 жыл бұрын
@@ugurozsoy8001 what's wrong?
@ugurozsoy80013 жыл бұрын
@@victorribeiro2304 I did the circuit exactly but it did not work. I cannot control the voltage and amperage.
@SparkyJames3 жыл бұрын
Wow that was so cool DIY transistors!!!
@luciolanari95324 жыл бұрын
Articolo molto interessante, da imitare; peccato non ci siano indicazioni per la costruzione dell'induttanza, ottimo se funziona.
@cagdaspoyraz82942 жыл бұрын
you are a different woman and a different person and so you are so impressive.
@Mustafa_Dinc_2 жыл бұрын
Ben bu devreyi 0 50 v , 0 10A olarak yaptım, tl494 ü ve kullandığım 16f676 entegresini 12V ile besledim, Devre çok karallı çalıştı, yalnız R9 daki direnç kavlurdu, yine de düzenli çalışıyorlar öneri, Videolarınızda kendi orjinal sesinizi kullanınız, kendi sesiniz daha güzel, Teşekkürler
@aboimad51782 жыл бұрын
I Made the circuit but MOSFETs get very hot even on low current
@mirhossen3673 жыл бұрын
your diagram can not match with your project... say what kind of resistor you used on R9? and its watt and its resistance ? also doubt about R1... and you use mosfet driver as emiter follower why ?
@Deep_Thoughts994 жыл бұрын
Love your videos and channel, need more these types of videos, thanks
@marciooppido2065 жыл бұрын
Projetos sempre excelentes
@Edmorbus5 жыл бұрын
Thank you for another excellent video
@hobbyrob3135 жыл бұрын
maybe I can use this schematic to turn it into an AM modulator! instead of the voltage regulating potentiometer, I do the modulation in there. the control schematic for stabilization will also be canceled!(does not have to be made!) Friendly greetings from The Netherlands! Rob.
@osazeimhontu32395 жыл бұрын
Thanks for your tutorials,I bought both transformer calculator programs,can you make a video for flyback converter and how to use the application,thanks .
@MyOwntuahur5 жыл бұрын
nice product.. please make some device to up the current of solar panels 30wp more.!!
@aimsinteractivepvtltd81473 жыл бұрын
I really appreciate this supply for hobbyist, but in older days I have seen it working from 0-24v. I want you to please mention changes to make it work from 0v level rather than 2v
@kusiadomakokelvin99884 жыл бұрын
Wow this is crazy , good job
@luiscarlosmarques39462 жыл бұрын
Great xplain, the best. TKS
@humbertomejia8255 жыл бұрын
Por que no hacen una traducción en español en todos sus vídeos gracias Excelente video.
@electronicasancheztutorial82054 жыл бұрын
Hola mi qeridos amigo te invito amo canal si te gusta suscríbete mucha gracias desde REPÚBLICA DOMINICANA
@electromachine30725 жыл бұрын
can you make mppt solar charging controller!
@viktoruzhgorod4 жыл бұрын
По английски стабилизатор будет regulator, не stabilizer. Вообще, над переводом еще стоило бы поработать.
@soundarpandian34235 жыл бұрын
First like from tamilnadu 😀👍
@saveearthsavenextgeneratio58105 жыл бұрын
👌👍
@iaia8785 жыл бұрын
Касьянчик, ты что ли?!))) 👍👍👍
@cocas10005 жыл бұрын
Very good! Another great job,Keep up !
@mijaresk20074 жыл бұрын
Very nice voice.
@chandanmaurya32914 жыл бұрын
Very informative...thanks for video
@alexvanstaden67343 жыл бұрын
Great video, thanks.
@charanrod99105 жыл бұрын
Pcb layout is missing...pls upload...
@adhil89184 жыл бұрын
Just like a monster!!
@robertmartin56793 ай бұрын
Make video how to make variable 1 V and 40 A power supply.
@eliasantunesfranco23045 жыл бұрын
Thank you
@margran15 жыл бұрын
Great stuff as usual. I just want to know how to attach an lcd display to show output values and input values auch as current and voltage.
@user-pz6cx8zf2y5 жыл бұрын
Are you sure that the values of the resistors R7 and R9 are as shown in the schematic? Something seems to be wrong with the driver stage. VT1 seems to be permanently on. This means that it's emitter will always be in almost the entire B+ voltage. This voltage needs to be shorted to the circuit ground when the end of the the R9 terminal that goes to TL494 is grounded through the I.C. Is the value of R9 capable to saturate VT2 and can VT1 (or both transistors) withstand such direct short circuit currents of the power supply voltage, especially if it is at 30 Volts? I wonder how much is the power loss of the driver stage as it is shown. Not the best design anyway.
@hichamtassi1753 Жыл бұрын
Hello, i built the circuit but i found out that one of the P channel mosfets is always giving maximum output while the other is regulating. Other thing, the circuit doesn't work with input below 18v and doesn't go more than 11v. Any idea why ? Thanks
@user-pz6cx8zf2y Жыл бұрын
@@hichamtassi1753 Since the two mosfets work in parallel, what you say seems to be not possible. If one of them is shorted out, only in this case can this problem happen, but in such a case there is no regulation at all. You need to check your connections again and see the test signals at the output of the I.C. Normally it should work properly with 12V input. Check the 5V voltage reference of the I.C as well...
@hichamtassi1753 Жыл бұрын
@@user-pz6cx8zf2y Hello, i checked and indeed one of the Drain tracks was cutted. Now it regulates the voltage normally. But below 18V it turns off, the current limit function works but max current obtained is 500mA (with 0.02 ohm resistor), and the irf9540 that i used heat a lot even with only 100mA load.. I have also noticed something: in the PCB the drains are linked to the diode whereas in the diagram, the source is linked to the diode, it seems Drain and Source are inverted... Thanks for your comments on this.
@user-pz6cx8zf2y Жыл бұрын
@@hichamtassi1753 The drains are correctly connected to the cathodes of the double shottky diode. The sources are connected to B+. This is normal because the mosfets are P channel. The schematic is correct as regards that. You need to find out the fault by careful troubleshooting. Check the resistor values first and their connections afterwards. Then you must do the adjustments of the trimmers...
@hichamtassi1753 Жыл бұрын
@@user-pz6cx8zf2y Ok, thanks for the info on the P channel. The issue i am facing now is that i have no power, voltage adjustment is ok, but under small load, voltage drop to zero regardless of the potentiometer position. Pin 16 sees from 0 to 0.6v, and i traced the shunt, and it seems good. Any idea where to look at ? Thanks
@mosttaffabadrie84519 ай бұрын
Excellent vidéo merci
@doctortv21ortega574 жыл бұрын
Vey very good, thank you so much.
@protikbanerjee93234 жыл бұрын
Thank you for the excellent Circuit. Need some help on output Transistor, can you suggest any other transistors equivalent in place of IRF4905 they are not available in our market. My transformer DC output is 37V- 6Amps after filter. I want to use this as bench power supply for my mini workstation. I am a hobbyest.
@ronnolasco88095 жыл бұрын
Thank for the knowledge.. .if you have any idea about how to build a 12-30vdc input and an output of split type psu like +/-50vdc.. .the ampplication why its split type for thw output is for amplifier..
@GnuReligion5 жыл бұрын
Yes, a split rail is useful for audio amp circuits.
@jesusvasquez16135 жыл бұрын
Love your videos thanks
@kolinevans91274 жыл бұрын
You had me at hacking the P channel lol
@qsdrfghgujfddyffguff4 жыл бұрын
Superb converter
@CorneredCat0 Жыл бұрын
A link to an archive is not working, great video though
@gabrielcuevas58375 жыл бұрын
Muy interesante, muchas gracias.
@electronicasancheztutorial82054 жыл бұрын
Hola mi qeridos amigo te invito ami canal si te gusta suscríbete mucha gracias desde REPÚBLICA DOMINICANA
@mahmoodakbar72317 ай бұрын
Sir please e rickshaw par banao is ke technician bahut Kam hai
@mostafaaboezzo68735 жыл бұрын
Very nice. thanks you too much
@Drxxx4 жыл бұрын
great project
@lenaroseguera12414 жыл бұрын
How can we use N channel mosfet?
@annyan9045 жыл бұрын
Very informative video mam....
@unosec5 жыл бұрын
very good video
@indiantechboys99073 жыл бұрын
Help i made same circuit but when i put load on the output the mosfet gets very hot in seconds and show only 400ma max current at output
@tiagonet87943 жыл бұрын
have you put a sink in the mosfets???
@indiantechboys99073 жыл бұрын
@@tiagonet8794 yes but he said you can draw 3-5a with out any heat sink
@sandipghuge42623 жыл бұрын
Very good
@opinair5 жыл бұрын
Protect gates with zener
@user-yk3dh5xh1k4 жыл бұрын
И тут Касьян)
@jacekm10 ай бұрын
If I put transistors on P-chanel IRFP9140 100V VDS, power supply TL494 on a 33V Zener diode and a 2W 270 Ohm resistor, 220 Ohm resistors, 270 Ohm tam, capacitors on 80V, gate resistors 10 Ohm, will the converter work and will it not burn up? When you power it from Vmax 60V or 55V 6A panels and connect it to 12V charging? Also consider whether to exceed 20V VGS. Schottky diode 20A 80V. Inductor 95uH.Why, after making the above-mentioned modifications, i.e. changing the transistors to the mentioned IRFP9140, inserting a 270 Ohm resistor and a 33V 1.3W Zener diode on the TL494 power supply, replacing the 220 Ohm resistors from the diagram - I gave 270 Ohm, gate resistors instead of 4.7 Ohm, I put 10 Ohm instead I put a resistor at the 680 Ohm output at 820 Ohm. After exceeding the supply voltage of 38V at the input, an undesirable 25V appears at the output despite the regulation? What is wrong?So I have 35V and I connect it to the converter input, I set 14.5V at the output. I increase the voltage at the output and exceed 38V - suddenly the output appears 25V or more, potentiometer regulation then no longer works. What's the problem? I think that the choke changed something from 95uH to about 150uH. He should help.
@saadaldossri53485 жыл бұрын
Thanks
@jenpau02695 жыл бұрын
Can you make with CC Constant Current - CV Constant Voltage please
@Sekhar_Home3 жыл бұрын
This is cc cv
@Sebastian-il2ly5 жыл бұрын
Verry good video. But could you show what transformer i schould use if i want from 230v to 28v and how much imputcurrent is required?
@electronics4all Жыл бұрын
hello.i made this circuit and seems to work but the mosfets gets too hot even with 200ma load although in the video says you dont need heat sink for about 3 amps load.i wonder what will happen with 3amps load or more.also i see comments that you must change some components with others?which is the corrent placement after all?
@ARUNRAM-19903 жыл бұрын
At 1:52, what about the TL494 pin no:3 (feedback)?
@carlospadillagarcia33793 жыл бұрын
Hola. Felicidades por el video.una pregunta. Se puede poner un toroide más grande que tenga 80uh igual en vez de poner dos?
@pritikanadas31404 күн бұрын
Can we use N tip MOSFET
@VideoMan20245 жыл бұрын
Nice!!!
@atec92282 жыл бұрын
In this video there is a Chinese type power supply similar to the baku 1502 but you can see an LCD display inside... What modification did you make? What circuit is inside? schematics of this Thank you
@dungcdt4 жыл бұрын
Hello! I have made this circuit according to the diagram, but I can only adjust the output voltage in the range of 2-13vdc while the input voltage is 24vdc. Please show me why?
@Sekhar_Home3 жыл бұрын
Pls can u provide me the circuit??
@ivancruzluque27954 жыл бұрын
Como darle.usos a tranformadores de este tipo
@rawandjaza59295 жыл бұрын
You use 2 resistor 0.1 ohm 5w it mean current shunt is 0.05 ohm is that correct ? Can use any P chanel mosfet with high output amps ?
@rreemyy5 жыл бұрын
Where is zener diode for gate protection? You can't connect gate to ground if input voltage is higher then ~20V.
@user-pz6cx8zf2y5 жыл бұрын
@@electromagic3111 On both of them. Its purpose is to protect gate from shorting out if Vp(eak) coming of the pulse generator exceeds Vgs of the mosfet used in the application. Here it can reach almost 30V, depending on the power supply voltage, which is too much for the gates' safety.
@user-pz6cx8zf2y5 жыл бұрын
Good remark!
@user-pz6cx8zf2y5 жыл бұрын
@@electromagic3111 Greece.
@user-pz6cx8zf2y5 жыл бұрын
@@electromagic3111 I don't know what divano means. Where did you hear it? Divani is the bed, very near to divano, but surely not the same.
@user-pz6cx8zf2y5 жыл бұрын
@@electromagic3111 What do you need it for? (And it's my time now to ask you where are you from)!
@topgearIQ5 жыл бұрын
Good explain
@entertainmentzone592 Жыл бұрын
Please please please make mppt charge controller using n channel mosfet
@rayansinger672 Жыл бұрын
Hello, Thanks so much for the video. I'm wondering how could I modify the schematic to get 0-60VDC, 0-50A adjustable output? Can you help me with that?