Its nice to build stuff that works by intuition and without a circuit diagram, but i did make a circuit diagram for what you built and i can tell you that it is not a buck-boost at all, but a flyback converter with isolation. The extra diode and its resistor is the snubber network to absorb the energy stored in the stray inductance of the primary coil and protect the mosfet.
@@Electronic_For_You 1. The resistor in the damper circuit heats up catastrophically. I put 1k at 5W, but it's also on the edge... What could be the reason? Maybe 1k is too much? Or, on the contrary, too little? 2. I conducted an experiment: 35V/6.18A at the input, 44.58V/4A at the output. The efficiency was 82.4%... But more often 78-80%, no higher. At the same time, the choke and transistor heat up very much. I wound the choke on a larger core with a diameter of 33mm and a 2x1.35mm wire I think if the load currents are not higher than 2-3A, you can still put up with overheating... if the currents are higher, then something will definitely burn out... By the way, I put radiators on the diode and transistor that are about 10 times larger than the original ones (but they don't help much)...
I don't have a diagram really sorry, it came to mind and i made it , hahahah BTW , you can follow the Flyback circuit diagram it works the same , and it's also clear in the video what i did !
@@Electronic_For_You I've tried it ( with boost dc 150W) , input DC 12V but buck mode low voltage at 9V, can't down to 3V to minimum of voltage,? have i re-turn /modify 1:1 to 2:1 of the wire ?
I think it's because there are some resistive dividers for Voltage feedback and these converters are made for Boost mode so minimum input voltage should be 9V To Work well with the ic ,
Hello the efficiency is too low about 75%. Have tried both boost and buck. Could you please help me with efficiency. Atleast i am expecting about 80-85%
I tried it but it failed. As soon as the circuit tries to start switching current rises up to current limitation and the transistor heats up. No output voltage. I'm not sure whether the coil is wrapped correctly. I think the idea is to have a primary and a secondary coil with the same number of winding, right? It's hard so see on the video.
Dear i have purchase this madual from draz pk i tried to run the dc motor after 3 mints on the side of current adjusting potenthometer mosfit too much overheated now its out put is zero this mosfit have no part number which mosfit to be used .pleas advise
Finally I got it to run. It does exactly what you show but I'm still unhappy with the heat it produces. I hoped your modification will reduce switching losses. Maybe you like to advise another possible modification I use. By adding a few resistors I created a static MPPT solar battery charger with this boost converter. Therefore I used the two error comparators for input and output voltage (instead of output current). Setting the output limiter to the battery-full-voltage will provide a battery charger that stops when the battery voltage reaches the limit. The input voltage comparator will pull your input voltage down to the MPPT of your solar panel by increasing output current until the MPPT is reached. It runs fine with a 33V or 44V MPPT PV-Module charging a 16S LiFePO4 battery up to a limit of ~57V.
Well-done 👍🏻 If it produces heat , then i recommend increasing the winding turns! In my case it doesn't produce heat 🤔 see if it's overloaded? And i do not recommend increasing the voltage more than 45-50V !
...после такой переделки этот прибор должен стать универсальным...но что то пошло не так как увеличил напряжения так и остался но должна появиться функция понижения напряжения...что то пошло не так...
Здравствуйте, вы увеличили напряжение больше 50 В? А ваше устройство все еще повышает напряжение? Я думаю, если напряжение слишком сильно увеличится, потенциометр выйдет из строя!
@@Electronic_For_You bro its start sorting i have also seen same problem in your previous video where you reviewing this module but in this video how do you fixed it
You are a genius. I love your work from the bottom of my heart.❤❤❤
Thanks bro 😊
Bisa tidak kalo modul Xl4015 di buat step up down seperti itu,kalau bisa tolong buatin vidionya
No , XL4015 is a buck converter,
You need a boost converter
You did not test all conditions to confirm. Can we get 1.5V from 12V input?
Is this module expandable in amperage, and what do I need to change?
I don't think it can , maybe you can try a powerful MOSFET and a big inductor to increase current ,
You are GREAT.
Can you please show me and your viewer the circuit diagram before and after the modification .
THANK YOU.
It's very simple modification doesn't need diagram
Its nice to build stuff that works by intuition and without a circuit diagram, but i did make a circuit diagram for what you built and i can tell you that it is not a buck-boost at all, but a flyback converter with isolation. The extra diode and its resistor is the snubber network to absorb the energy stored in the stray inductance of the primary coil and protect the mosfet.
You are right, 👍
@@Electronic_For_You 1. The resistor in the damper circuit heats up catastrophically. I put 1k at 5W, but it's also on the edge... What could be the reason? Maybe 1k is too much? Or, on the contrary, too little?
2. I conducted an experiment: 35V/6.18A at the input, 44.58V/4A at the output. The efficiency was 82.4%... But more often 78-80%, no higher.
At the same time, the choke and transistor heat up very much.
I wound the choke on a larger core with a diameter of 33mm and a 2x1.35mm wire
I think if the load currents are not higher than 2-3A, you can still put up with overheating... if the currents are higher, then something will definitely burn out...
By the way, I put radiators on the diode and transistor that are about 10 times larger than the original ones (but they don't help much)...
Try using a Higher Value load resistor like 4.7K , and You can try changing the MOSFET with a more powerful one and also diode !
Can you send a diagram, so I don't assemble it wrong? Is this like flyback mode?
I don't have a diagram really sorry, it came to mind and i made it , hahahah
BTW , you can follow the Flyback circuit diagram it works the same , and it's also clear in the video what i did !
Before turning it on , be sure to use a Low power Input source like 12V and 1A only, in case someone is wrong it doesn't blow up ,
Good Luck :-)
@@Electronic_For_You I've tried it ( with boost dc 150W) , input DC 12V but buck mode low voltage at 9V, can't down to 3V to minimum of voltage,? have i re-turn /modify 1:1 to 2:1 of the wire ?
I think it's because there are some resistive dividers for Voltage feedback and these converters are made for Boost mode so minimum input voltage should be 9V To Work well with the ic ,
Hello the efficiency is too low about 75%. Have tried both boost and buck. Could you please help me with efficiency. Atleast i am expecting about 80-85%
I tried it but it failed. As soon as the circuit tries to start switching current rises up to current limitation and the transistor heats up. No output voltage. I'm not sure whether the coil is wrapped correctly. I think the idea is to have a primary and a secondary coil with the same number of winding, right?
It's hard so see on the video.
Yeas ,
Make a transformer with 1:1 ratio and connect as shown
can I create a video for 300w 9A buck converter, because my other side of MOSFET is burn thanks.
Try changing the MOSFET
Dear i have purchase this madual from draz pk i tried to run the dc motor after 3 mints on the side of current adjusting potenthometer mosfit too much overheated now its out put is zero this mosfit have no part number which mosfit to be used .pleas advise
75n75 mosfet, use flywheel diode to protect mosfet
Bundle of thanks.
Lots of Wellcome
Don't do drugs
@@gregjones3660 okay
Hi dear
I have one like this, but I want to make it control the voltage coming out from zero (0). Can you tell me how to do that?
Please answer me
Sorry, i think it has some kind of protection circuit, so voltage cannot be lowered than 11V.
Can I used this as constant current constant voltage battery charger
Yes,
You can, but it's better to use a buck converter with CC-CV function
saya tidak punya dioda fr 207 apa bisa diganti hr 154?
Yes you can try
@@Electronic_For_You apakah bisa untuk charger baterai pack 16,8 4s input 10v output 18,6v?
10v is very low, it may get hot
@@Electronic_For_You apakah bisa jika 12 v? Tidak panas?
@newgates2464
12V is minimum, ok
How tho mod simetris -0+ output sir?
No , minimum 1.5V
you can mod input 60v < ?, because i have battery lithium 58.4v buck 12v ? , thanks , i need you help
Hello, for the battery you should use a proper buck converter , there is some cheap 80-90v buck converters available online
@@Electronic_For_You , i see you have 2 resistor 1k from output why, can i no need add it ?, i try boost output vol 60v 2 resistor 1k is very hot.
These are loading resistor!
You can use 5K if you have!
@@Electronic_For_You thanks, you are the best
You are welcome ✌️
Pv voltage is 25.8
18650 6s battery full 25v
Can it work as a cc cv battery charger (mppt)
No this cannot work as MPPT ,
Apakah aman jika untuk charger lithium 12v 20a? Dan apakah aman dengan mengganti mosfetnya ke yang lebih besar? Seperti hw5608w!
12V 10A Is ok
@@Electronic_For_You terima kasih masukannya
Welcome
Bro the copper wire, is it normal copper wire or coil wire? I mean insulated copper wire?
Insulated copper wire
Finally I got it to run. It does exactly what you show but I'm still unhappy with the heat it produces. I hoped your modification will reduce switching losses.
Maybe you like to advise another possible modification I use. By adding a few resistors I created a static MPPT solar battery charger with this boost converter. Therefore I used the two error comparators for input and output voltage (instead of output current). Setting the output limiter to the battery-full-voltage will provide a battery charger that stops when the battery voltage reaches the limit. The input voltage comparator will pull your input voltage down to the MPPT of your solar panel by increasing output current until the MPPT is reached. It runs fine with a 33V or 44V MPPT PV-Module charging a 16S LiFePO4 battery up to a limit of ~57V.
Well-done 👍🏻
If it produces heat , then i recommend increasing the winding turns!
In my case it doesn't produce heat 🤔 see if it's overloaded?
And i do not recommend increasing the voltage more than 45-50V !
Can you give me circuit of your modification , please
I can use tpa 3116 200watt amplifier
Input car bettery
If the amplifier takes peak current it can get damaged
That's the best mod ever 💯
Thanks
👏 Good 👍 job 👏👍👏🎉
Thanks
Hi Bro 2hat is the name of fuse in 400w dc to dc converter?
Car fuse
Luarbiasa👍👍
Thanks 🙂
Hey friend. I want to make a melting oven. Can i use this for coil heating?
This is a boost converter how can you use it?
...после такой переделки этот прибор должен стать универсальным...но что то пошло не так как увеличил напряжения так и остался но должна появиться функция понижения напряжения...что то пошло не так...
Здравствуйте, вы увеличили напряжение больше 50 В?
А ваше устройство все еще повышает напряжение?
Я думаю, если напряжение слишком сильно увеличится, потенциометр выйдет из строя!
Bro my ones don't go above 2 amp
Try adjusting current potentiometer
@@Electronic_For_You bro its start sorting i have also seen same problem in your previous video where you reviewing this module but in this video how do you fixed it
What shorting?
I think your inductor is not working well, are you sure you built it the same as I showed
@@Electronic_For_You yes bro i have done same
Try adjusting the Current potentiometer, and try using different load
Buy link plz
You can buy from any online shop
Good 👍 bro❤
Thanks
Hello po, can I buy this converted booster from you?
Sorry bro
I don't sell 😊
@@Electronic_For_You ok thanks
Sir Schematic diagram of this please 😊❤
Please follow the steps, so easy, no circuit diagram needed
High voltage wires melt.
Nice nice ❤❤❤
Thanks
👋
circuit plz
It's Very easy just follow the steps
top
Thanks
Štounakazi uređaj
Nothing wrong