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Well, I checked the tip amd it seems to be made from stainless material and untill now is in perfect condition! In worst case scenario in future there are replacement tips! For the isolation between barell and wires i checked and untill now there is no problem! I will keep it in mind for the future! Thank you!

I believe it is more a matter of practice how to handle it correctly and efficiently! Thank you!

@@techno-diathesivagelisilio940 the time took me to practice ... then the other one hold the advantage

Surely is not bat through a microcontroller will be cooperational!

I have made a video with the title E- bike sensor diy & diagnostic tool! If you want to see excactly how it works that will be helpful! Thank you!

Hello! That's a good way to be autonomous in energy! The 60 watts in 12 volts means 5 Amps that's a lot of current ! The 18650 is very powerful battery but it' will be overheated giving more than 2 Amps continuously so i think you need a bms 3s for 3 sets in parallel ! 3x4,2 volts so it will be safer for the whole. The bms will make sure that the batteries will not overheated and they will be charged and discharged without problems they will be balanced in their voltage all the time! If you do this i am sure that this system will be work without problems! Thank you!

@@techno-diathesivagelisilio940 sir i want to know is do i need to set the current or not?.

Yes!You need to set the current that's why it has the potentiometer for current setting!

I checked again and i found that in the end of the pot turning is a little bit hard to stabilize! Maybe a different value pot or if we put in series another pot may fix rhe problem! Thank you!

@@techno-diathesivagelisilio940 It is written that the current adjustment pot works when it is modified as buck boost, it is not very sensitive in its current state.

​@@mehmetyuksel9465 The pot is working as you see in the video but it responses in the end of it's turns and is a little bit hard to regulate it! Thank you!

Hello, thank you for visiting my chanel! It's a matter of in what angle you see this matter! A great theory of Geog Ohm explained in this video! Thank you!

The more magnets are for sure.more accurate! You can see another video i created in which you make your own pas sensor so you have a better idea for how it works!

Very good thinking! But in this part i can't be useful i am good in electronics and bicycles but in programming I know less than you do! Thank you!

Apparently the specific device was problematic you ask for replacement or refund!

Good to know. Thanks! Hopefully they will refund my 2 hours trying to make it work 😊

Thank you! If we observe the curve in the data sheet of any transistor we will see that the voltage is proposal to power! You will see that when voltage is in the peak rhe power goes down The optimum power of the transistor is in a low scale of range! Mosfets are administrating volts and transistors watts! So during we are increasing or decreasing volts the power needed for the led or the load make voltage to go down to zero! Also the out voltage is determined by the voltage we create and send to base by the voltage divider which is the trimpot! Thank you again, I remain!

@@techno-diathesivagelisilio940 My apologies; I slipped again... Confusing myself, because BJTs are current driven components... So, yes, when the pot is set to zero, there is no current. Without current, the base remains closed. Thank you for the reminder.

I have to suggest to you to see my previous video (power supply for begginers with voltage and current regulation) there is the same situation with the voltage regulation through transistor and a step further with the current! Wright to me if it was helpfull. Anything you want you ask me!

καλημέρα! Ευχαριστώ!

Hello,in this situation we have 5 volts x5Amps which means that 25 Watts are wasted the heat is very high to have an idea this is a small soldering iron! With the existing circuit compined with 2 MJE 2955 power transistors on parallel and big heat sinks we can achieve our point! For me the best option is to by a step down back converter it will cost about 3€ and it can handle 300 W and it's design has the minimum power loses! Thank you!

Well,i use it also to a drill (you can see my previous video) how to fix a cordless drill bms problem. There i noticed that the bms is a very sensitive device if you touch something or if you make a wrong connection the device is off then you have the problems you describe. If you carefully make the connections and you don't touch anything by accident i think everything will be ok. The drill works more than a year since video presentation without any problems. So try after the connections to secure bms from outern intervensions. Also there is a possibility this bms to be problematic! when you connect batteries is better they have about the same voltage. Thank you i try to be helpful everything you write is very important to find out possible problems!

Sorry for been annoyed by the sound but as im Emglish i have not the correct pronunciation i prefer to have music backround you please reduce rhe volume of your device. Thank you!

If you watch my channel videos you will find that i know very well what i am doing specially with electronics! So when you don't know you don't blame others for your ignorance!

If you can have acces to Aliexpress sight there you will see s price around 800 € for all the bicycle!

I really don't know as the folding bicycle was bought 6 years ago and then i bought the kit to make it e-bike. You can search in Aliexpress or in Amazon or in Bangood i am sure you find there good deals! Thank you!

Well,we have a device which achieves the required voltage by closing and open a switch in a fraction of a second thousands of times. Possible causes of this problem: 1) The capacitor 330uf it has to be filled and then it could get empty and that will take some time in this way when you open the switch won't drop directly to zero volts it will take some time also to fill we have a small delay to fill it instantly we need a huge amount of current in a fraction of a second! 2) The shottky diode is responsible for lower the voltage during the process in a fraction of a second has to pass current because the ground voltage many times is higher than the coil voltage and so the diode has to pass the positive voltage! 3) The fine and perfect regulation of the feedback should be with the help of an oscilloscope and i mean the tripod resistor of 10k! Please do check all these reasons and if your power supply has enough power for this. But as you said the ready made devices have not this problem even with a small power supply i agree with that! Thank you! I remain!

@@techno-diathesivagelisilio940 Thanks for your answers. Actually, we designed a dc-dc voltage regulator with LM2576 integrated. When we run anything with the regulator, the voltage value drops below the value what we set. We couldn't solve this problem, i hope your answer will help us. We wanted to use 1N5822 as a diode, but we unknowingly used 1N5819 Shottky Diode (we realized later). We will try replacing the diode to find out if this is the cause of the problem.

The kit was bought from aliexpress around 200 €.

Hello i answere the same question to another person a month before in this video please refer there! The question was from mr Anderson Cardoso. In my opinion if the courent regulation is not working you ask the byer to refund. Thank you!

I really don't know if in Brasil is possible to have acces to aliexpress,amazon,bangood these sites are for sure sellers of e-bike kits and spare parts and there you can order this sensor or you can make one is very easy i have a video in my channel! Just see the video bike light proportional to movement there you see what is going on with this sensor!

I personally bought it from aliexpress but I think all the selling sites have it in their list.

Well your car's lighter has a fuse of 10 Amps so 180 W/19,5v=9,23Amps it's ok but i am sure that for charging a notebook the maximum amperage should be at 2 Amps!You can verify it with a Ammeter. To have an idea a car's battery is charging with about 5 Amps! 10 Amps is a lot of current! For the device i have two of them the one i am using in the video works perfectly the other as you said had the same problem but i noticed that the out capacitor was loose and i resolder it and now its ok! For the voltage with the pot you can regulate to give exactly 19,5 volts! 17 volts seems to be ok (4 x 4,2=16,8 volts) but i am not sure if that voltage will charge it 100% you have to check it (maybe in the notebook there is a stabilizer which receiver 19,5 volts and regulates it). Thank you!

You are right but for a small period of time it's ok! If we use it for a long we have fireworks! Thank you

The base is connected to the middle pin of potentiometer, which is connected to anode and cathode so when we rotate the base can be positive but can be also to be grounded 0 volts!

I also have a video to make variable power supply! There i think you will find everything! Thank you!

Thanks I will check out

For the 4,7 Ω resistor it is just to make sure that the current should be under 3 Amps If we calculate with Ohms law V=I*Rv 12/4,7=2,553 Amps. Tip 41 mentions in datasheet that can handle 6 Amps but in the real world after 3 Amps i doubt if it will operate. Thank you!

If you see the previous video of this named (step up the existing power supply to 90 volts) there you have i thing your answer if don't please contact me again! Thank you!

Well,thank you for choosing my channel to make a so usefull circuit! I was planning in the future to make one but at the time will be difficult! Rgrds have a nice new year 😉!

Thank you, brother, for your help please make it by using a microcontroller IC or Arduino Nano for a quick response instead of an HT12 IC @@techno-diathesivagelisilio940

I tried for this also to 13,6 volts and it failed! The reason when the 4,18 volts are coming from the charger the tl 431 closes and stop the procedure! Thank you!

@@techno-diathesivagelisilio940 Thanks and happy new year

Really i don't know! I suppose if you order something in payment they will mention shipping fees and delivery method! Thank you!

Sorry i had a royalty problem with original music so i had to overright on it!

@@techno-diathesivagelisilio940 just write "no copyright music" and you will find a lot of normal good quality songs :)

You are right this ttansformer gives at most 3,5 Amps we can add a transformer in parallel or to connect a bigger one! I wanted to emphasize that we have here to work with a power transistor of 15A and 115 W! Thank you!

From 4,3 to 5 volts will be ok!

This circuit needs 3x4,2 volts totaling 12,60 volts. For one battery only 4,3 volts will be ok! Thank you!

In more than 5 volts you need heat sink to transistor!

That's a very difficult question! If we talk about household ac from mains is surely stable! But if we talk about ac from a transformer first we put a resistor to see the fall of the voltage with load and then we act proportionally! So we put a load resistor permanently in parallel with ac out to stabilize!

Really i have so many tools more needed to equip 2 repair centers but in that case i was very traditional!

Dear viewer on this video you will find a very detailed circuit diagram. Thank you!

Dear viewer on this video you will find a very detailed schematic which as you will see is showing analytically everything!

Yes you can this device actually is a voltage and current regulator for voltage from 1,5 to 40 volts and for current depending of the watt consumption of the power transistor. If your input volt is for example 20 volts and you need out of 12 volts and 1 Ampere your power transistor needs to consume 8 watts. Also you can put some capacitors (is not bad) before the circuit to stabilize the voltage and filtering the generator's harmonics.

@@techno-diathesivagelisilio940 can I use it from a dc generator to this device and i will connect it to chargw a 12v battery?

Yes that will be ok but if the battery is a led acid battery you increase the volts to 14 and the Amperes to half a Ampere!

@@techno-diathesivagelisilio940 what will happen if its not half ampere?

I don't know how many amperehour is the battery yes is very slow if you put a bigger heat sink to the Lm317 it can manage 1 Ampere to give for long time charging!

Hello, I have to try this but i am in holidays now. I'll try it next week snd i will inform you for the results! Thank you!

Hello i am back so i tried the device to answe your question i wanted to be.100/100 sure so i connect my power supply and i supply the device with 12volts and 1 Ampere and from the other side i connect 2 car headlights of 12 volts in series so i increase the device to give 24 volts and i open all the way rhe potentiometer for the current to its maximum and i got 24 volts and 1 Ampere! In the video the power supply was 12 volts 16 Amperes so it had the power to give 384 watts but here has not. For anything you want to ask i remain! Regards!

Why you didn't show up wich direction you drill the current?