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
@Norbydaner
7 ай бұрын
@@electronicpower1826she is only the narrator for english 😃 Who made the video i think is a slavic probably russian man 🫡
@electronicpower1826
7 ай бұрын
@@Norbydaner looks Like it 😂
@saveearthsavenextgeneratio5810
5 жыл бұрын
MY FAVOURITE Channel KASYAN TV.
@SundayOwens
7 ай бұрын
I need circuit diagram
@marcusfred4480
4 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
@ramana778-u5m
10 ай бұрын
Excellent video and a very good presentation. God bless you dear!
@agsolarpower5975
5 жыл бұрын
Nice circuit board with great efficiency 👍👍👍👍
@marceltartan4747
4 жыл бұрын
no need pairs of BD transistors ,in this configuration TL494 can comand directly MOS FET 's.
@hosseiny1973
4 жыл бұрын
In put capasitor are important.and you can add a 100n capasitor at the out put to remove spayks
@mirhossen367
3 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 ?
@brunocaetano1850
4 жыл бұрын
thanks for contribution my friend!
@mosttaffabadrie8451
10 ай бұрын
Excellent vidéo merci
@republicoftutorials6068
4 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
@ugurozsoy8001
4 жыл бұрын
I made the circuit but it doesn't adjust the voltage and amperes. Can you help me
@victorribeiro2304
4 жыл бұрын
Thank you. Those changes made my circuit work.
@ugurozsoy8001
3 жыл бұрын
@@victorribeiro2304 can you help me
@victorribeiro2304
3 жыл бұрын
@@ugurozsoy8001 what's wrong?
@ugurozsoy8001
3 жыл бұрын
@@victorribeiro2304 I did the circuit exactly but it did not work. I cannot control the voltage and amperage.
@aimsinteractivepvtltd8147
3 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
@kusiadomakokelvin9988
4 жыл бұрын
Wow this is crazy , good job
@protikbanerjee9323
4 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.
@qsdrfghgujfddyffguff
4 жыл бұрын
Superb converter
@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?
@lenaroseguera1241
5 жыл бұрын
How can we use N channel mosfet?
@pritikanadas3140
28 күн бұрын
Can we use N tip MOSFET
@asadrao5147
2 жыл бұрын
Why is there no pin number 3 mentioned on LT494 in this video?
@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?
@topgearIQ
5 жыл бұрын
Good explain
@ryleynaray7554
2 жыл бұрын
Hi, I have built the circuit but I am having trouble with voltage adjustment, I am trying to use a 5k trim pot and it is producing strange results and no results when the 1k resistor is added ad shown in the circuit. Can you please help me?
@jenpau0269
5 жыл бұрын
Can you make with CC Constant Current - CV Constant Voltage please
@Sekhar_Home
3 жыл бұрын
This is cc cv
@TheUPX
4 жыл бұрын
this schematic work only with >12V input ? i need to start from 8V. Is not work with 8V ? because IRF ? but with IRL ?
@rawandjaza5929
5 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 ?
@barongeorgelorilla7270
3 жыл бұрын
Good day sir love the video, But can you help me sir in replacing MBR30100 ? because im using proteus 8 sir.
@chibuzoeze4225
3 жыл бұрын
Can I use it as solar charge controller?
@Sekhar_Home
3 жыл бұрын
U can
@yobalzal7266
4 жыл бұрын
How many came here looking at the title and how many came looking at the Video thumbnail/Image?
@LEO-xo9cz
4 жыл бұрын
Title here.
@ahmedkaram40
2 жыл бұрын
صديقي هل يمكنك مساعدتي في العثور على دائره تتحكم في 50 فولت و20 امبير
@p1xelman
3 жыл бұрын
output realy can be 0 or 1.25?
@willystechnologies
3 жыл бұрын
where is the link to download PCB design??
@eduardovazquez6141
2 жыл бұрын
great! link to diagram?
@wycliffea.okwaro8352
4 жыл бұрын
i need one that is 25v 0 25v to 35v 0 35v supply with 12v ov outputs
@adrianal3913
3 жыл бұрын
Con esa Vgs el mosfet nunca sale de la zona activa
@rajeshbarlota7134
5 жыл бұрын
Hi please send the pcd size to make order on JCL
@sriparameshwariharvestersu8148
5 жыл бұрын
Plz help me how to convert dc 12v to 12v ac plz help me
@titoalrao7325
4 жыл бұрын
👍
@Sekhar_Home
3 жыл бұрын
All my components gone to damaged due to the presentator wrong info and wrong diagram... Shit
@AmplifierWorld
3 жыл бұрын
What a great video, very impressive, I have no words to describe
@jongjava8743
4 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.
@metl_play
2 жыл бұрын
I have never seen somebody Hacking a MOSFET before.
@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
@harunkaramuklu1460
4 күн бұрын
Adjustable power suplly değil Buck Converter diyeceksin!❗❗❗ Yanıltıcı başlık kullanma!
@teslayokan64
4 жыл бұрын
Fake video!i already got pcbs,does not work,and imposible to work,because he make video only for get hit
@osazeimhontu3239
5 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 .
@jacekm
10 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.
@gregsmith2262
5 жыл бұрын
Thank you for another excellent video, always the best circuits!
@electromachine3072
5 жыл бұрын
can you make mppt solar charging controller!
@ΠάριςΑζής
5 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
@ΠάριςΑζής
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
@@ΠάριςΑζής 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.
@ΠάριςΑζής
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
@@ΠάριςΑζής 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
@thevoidedwarranty
2 ай 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 .
@lifeisbeautiful9357
2 жыл бұрын
Hello. i am Mandeep soni. I have a request. I want ac 220v to 36v and 90A smps circuit diagram for my some project . I don't have money to buy but i can get components from e-wast. Please help me. Please... Thank you so much.
@deepwidedarklight
4 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.
@attilagergely6734
5 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
@sonmai3526
5 жыл бұрын
I noticed that, was going to comment.
@opinair
5 жыл бұрын
Zener diode is a must
@opinair
5 жыл бұрын
It is possible to use n chanel mosfet using charge-pump capacitor
@opinair
5 жыл бұрын
Attila....new subscriber lol
@ΠάριςΑζής
5 жыл бұрын
Correct remark.
@johnconrad5487
3 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!
@charanrod9910
5 жыл бұрын
Pcb layout is missing...pls upload...
@jormamannikko4304
Жыл бұрын
what is your small oscilloscope, which looks almost a smartphone, what brand and price, where to get
@robertmartin5679
4 ай бұрын
Make video how to make variable 1 V and 40 A power supply.
@AutoTechEngineeringDHAKarachi
4 жыл бұрын
how can i buy this unit from you 220v AC input and 2v-30v DC out regulated and adjustable current upto 10 Amp or more?
@electronic7979
5 жыл бұрын
Very good project 👍
@ARUNRAM-1990
3 жыл бұрын
At 1:52, what about the TL494 pin no:3 (feedback)?
@entertainmentzone592
Жыл бұрын
Please please please make mppt charge controller using n channel mosfet
@nocturnal6982
4 жыл бұрын
1.98 volt minimum,, not 0,,but i see the great explanation👍 ,,very well
@ravindaranm1874
6 ай бұрын
this circuit was practically 15amps not working
@MyOwntuahur
5 жыл бұрын
nice product.. please make some device to up the current of solar panels 30wp more.!!
@fernandojosepompeo4421
3 жыл бұрын
Hi, is it possible to reach 20A with this circuit, so I can use this converter to power my VHF rig? 73, Fernando PU2PLL - Brazil
@teguhsakura
3 жыл бұрын
AFAIK, It can up to 30A with the right 30A mosfet, 30A inductor and 30A Diode. But, Buck/Boost Conventer its not good for VHF because noise interference. CMIIW.
@CorneredCat0
Жыл бұрын
A link to an archive is not working, great video though
@dungcdt
5 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_Home
3 жыл бұрын
Pls can u provide me the circuit??
@luciolanari9532
4 жыл бұрын
Articolo molto interessante, da imitare; peccato non ci siano indicazioni per la costruzione dell'induttanza, ottimo se funziona.
@ronnolasco8809
5 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..
@GnuReligion
5 жыл бұрын
Yes, a split rail is useful for audio amp circuits.
@mahmoodakbar7231
8 ай бұрын
Sir please e rickshaw par banao is ke technician bahut Kam hai
@7c3c72602f7054696b
4 жыл бұрын
I love the ingenuity, I did something similar with smt ics.
@grdswbgamlath500
2 жыл бұрын
can u do this circuit by n Chanel mosfet pleace
@atec9228
2 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
@indiantechboys9907
3 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
@tiagonet8794
3 жыл бұрын
have you put a sink in the mosfets???
@indiantechboys9907
3 жыл бұрын
@@tiagonet8794 yes but he said you can draw 3-5a with out any heat sink
@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
@aboimad5178
2 жыл бұрын
I Made the circuit but MOSFETs get very hot even on low current
@praveen.i4540
5 жыл бұрын
circuit not working don't waste your time
@shadowhunterxxx5891
4 жыл бұрын
Can I see your face?🙃🙃
@SundayOwens
7 ай бұрын
Please i need to try it , where os yhe circuit?
@humbertomejia825
5 жыл бұрын
Por que no hacen una traducción en español en todos sus vídeos gracias Excelente video.
@electronicasancheztutorial8205
4 жыл бұрын
Hola mi qeridos amigo te invito amo canal si te gusta suscríbete mucha gracias desde REPÚBLICA DOMINICANA
@lucgauthier3201
4 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 !
@Abcd-i8q3u
11 ай бұрын
How to modify it for 60 volt 15 amp cv cc
@hakiaysan5678
4 жыл бұрын
Schematic 220 ohm, you use 150 ohm?
@margran1
5 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.
@rajazain6907
2 ай бұрын
Please make mppt charge controller
@ГеоргиХристов-г6р
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.
@BogdanSerban
5 жыл бұрын
That app is useless if it doesn't let me enter a custom core
@Danixu86
5 жыл бұрын
This video is just spam and a way to get users for their application (even they lied in title). I've not tested it because I don't install everything I see, but surely is full of AD to get money.
@enlaescnoaprendinada
5 ай бұрын
can the pin 3 of the 494 be un used?
@mobilered2776
4 жыл бұрын
Hi can i get buck converter for rail to rail DC supply… ? Input DC +60V 0V -60V. Need output 2-4Amps , +28V 0V -28V, . This power supply use for Audio Amplifiers using STK 4141.
@CUCARACHA707
Жыл бұрын
Frecuency operation of the circuit ??
@MCsCreations
5 жыл бұрын
Really nice work, dude! Great little board! 😃
@Cabal2600
4 жыл бұрын
I need special power supply 22 Volt AC and 0.5 Amperes...I can't find particular transformer for my needs...
@iblesbosuok
5 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
@ajazahmad582
4 жыл бұрын
Very Nice circuit and explains.
@Deep_Thoughts99
5 жыл бұрын
The long awaited and searched video, thanks
@siavasharash5448
3 жыл бұрын
I have made this and every parts inclouding voltage and cureent setting working fine But short circuit protection dident work By the way i install 0.05 shunt So why short circuit protection wont work???
@soundarpandian3423
5 жыл бұрын
First like from tamilnadu 😀👍
@saveearthsavenextgeneratio5810
5 жыл бұрын
👌👍
@aboimad5178
2 жыл бұрын
hello thank you first .... but i do have one qustion what should i modify to let it work on 37v input and 25A current ?
@mirhossen367
3 жыл бұрын
and why can not used feedback pin (3 no pin of tl494) ? explaine about DTC (pin no 4 of tl494)...
@AhsanAli-so1fg
Жыл бұрын
Can u plz share PCB layout for this cct. I can't find in description. Plz share PCB layout
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