Your reviews are just amazing brother, it really helps in giving a good thought before ordering these items for our project. Keep up the good work!!

@robojax

6 жыл бұрын

thank you.

@chiruvasile9829

Жыл бұрын

Tradu în ROMANA

@anwin85alon

Ай бұрын

Pm me can you to install do sola paint of charger..

Thank you for taking the time to make this helpful video. I bought this unit form Temu at a very cheap price for the quality of the unit. It should useful many hobby projects.

Another Great and full detailed video by Robojax. I'm planing to make an mppt solar charge controller and this video helps me a lot. Thanks again Robojax

@robojax

3 жыл бұрын

You are welcome. Please subscribe. I appreciate it and helps my channel grow. Thank you

@leftright4450

3 жыл бұрын

@@robojax I am your long time Subscriber Ahmad :)

@anwin85alon

Ай бұрын

Pm me can you to install do sola paint of charger..

🙏🙏 From Sri Lanka. Very informative, thank you very much. It is admirable that how you find time to answer all these questions. Comments from readers also helped me a lot.

@robojax

Жыл бұрын

You are welcome. The best thank you for me is to subscribe to my channel. Your subscription is stamp of approval and my videos will be suggested to more people and this will help me. I appreciate it. thanks❤️

@anwin85alon

Ай бұрын

Pm me can you to install do sola paint of charger..

Hi RoboJax, here a contribution from me that solved my question below. I have used it on a solar panel and yes it does function at least till 42.5Volts. The control chip is a LM5116 which handles 100V. Careful, the capacitor on the module can't. Check the chip there is a LM25116 which handles only max 45V and is similar to the LM5116. See below a picture from the back of the PCB with most components identified. If anyone can tell me what the current limiting circuit looks like I'll be happy to know. I tested it on a real PV panel of 42.5V and 14.5V out at 10 AMPs It does get hot, extra cooling is needed. The chip runs on 300Khz if I remember right. This means that the 3 strains transformer with 0.7mm wire can be optimized by using one with a smaller diameter but more strains due to skin effect in the copper strains. Putting the MOSFETS in parallel with the same type might help too. The 3.5 Amp gate drive of the LM5116 should handle that. Changing it with a lower RDSon is a better idea. A IRFB3077 75Vds 2.8mOhm RDSon for sale at AliExpress lowers the Temperature www.holamex.nl/files/img/SMPS%2020A%20parts%20identified.jpg

@anwin85alon

Ай бұрын

Pm me can you to install do sola paint of charger..

Hi, very nice review. One tip, you should put one voltmeter directly on output of converter/pcb because voltage on on your Rigol load is slightly lower due to voltage drop in cables. Buck converter tries to maintain voltage but cant "see" value on the other side of cable.

@robojax

3 жыл бұрын

Hi, thanks. I've fixed that in the later videos. The electronic load as voltages sensor wires which I can connected to the output for just measuring the voltage to show correct reading.

Excellent review, and excellent video.

Thanks man for this review!

@anwin85alon

Ай бұрын

Pm me can you to install do sola paint of charger..

Thanks for your time in making your review. I wanted to ask a question. If the input on the converter changes does it also mirror the same changes in the output? Or does the output stay the same regardless of any fluctuations of Voltage/Current from the input? Thank you & I look forward to your reply

@robojax

5 жыл бұрын

I have tested and presented that. Output does not change as the input changes.

The best video of 20A model on KZread 👍

@robojax

3 жыл бұрын

I am glad you like it.

Use 4 wire measurement system to eliminate wire voltage drop. The module regulates the voltage based upon what voltage is present on the module terminals but there is a voltage drop in wires which carry current from the module to the load. The electronic load measures voltage on its own terminals and not on the module terminals so it is no surprise that you will not get the full output voltage set on the module.

The test is more correct at standard voltages 12 24 36 48 volt :). For example 36 to 12v 36 to 24volt test :). Thanks a lot of nice reviews you have. Hope you have a cool 36-48 volt power supply :D

@robojax

4 жыл бұрын

You are welcome and thank you for pointing out those points .

Nicely explained 👍

The difference in the output when the load are are attached / not attached is because of the resistance of the wires. In this particular setup the wire resistance seems to be around 41 mOhm. If your DC load is capable of doing 4-point measumrents then you can just hookup the voltage probes directly to the DC/DC converter output and then get the true output voltage.

@robojax

3 жыл бұрын

thanks for the insight.

@anwin85alon

Ай бұрын

Pm me can you to install do sola paint of charger..

Hi, I think the difference between no load voltage and load voltage can be that high, because you measure voltage without drop over the cables to your dummy load. I can't see any extra cables going from output to a voltmeter. So without considering that you shouldn't say the load regulation is unacceptable, as the circuit has external output resistance applied.

@405line

3 жыл бұрын

I was watching this and thought exactly the same thing. Needs to do a 4 wire measurement I think or increase the voltage to get the required voltage seen at the load.

@kaikart123

3 жыл бұрын

@@405line If you watch his other videos, he uses the exact same setup for different modules and some of them fare much better from voltage drop so I don't think it's his setup's fault.

@anwin85alon

Ай бұрын

Pm me can you to install do sola paint of charger..

+1 -- Mr Kowalczyk. Also, I didn't see you confirming that the Current Limit function was not influencing the alleged 'poor regulation', at each new setting. There may be quite a bit of interaction between the two trimpots -- after all, the thing is very compact for these power levels.

@anwin85alon

Ай бұрын

Pm me can you to install do sola paint of charger..

Using in solar application Thank you. My number 1 application!

@anwin85alon

Ай бұрын

Pm me can you to install do sola paint of charger..

Thanks for this review

@robojax

5 жыл бұрын

you are welcome. salaam, Ahmad

@bhargavbhat9380

3 жыл бұрын

hi does it's led indicater shows two different colour like battery charning and after charged changing in led the colour.

hello, would it be possible to measure the temperature of both sides, with a thermal camera

Excuse me. In which case this converter may burns a potentiometer. I replaced the embedded potentiometer and I tried another one of 10k and 100k. Same result. Burned. I powered a fan 12V 0.41 A. Thank you.

Thanks for vídeo

Selamu aleykum brother you explain very clearly

@robojax

3 жыл бұрын

Thanks and welcome

Hello friend, how are you? I ended up buying an equal one and when I connect a device to the power outlet the amperage does not go up being useless, but when I test it without connecting anything to the outlet the amperage works normally, you know what may be happening?

Hi. I have 20w 18v solar panel. Is this buck converter effective to charge powerbank (without lead acid battery) ?

Very good THANK YOU

Nice. Thanks !!!!

Have seen some of your videos - they are nicely done and thoroughly put. I wish you good. Thanks for the videos. One question - how would you conclude the design comments on the unit? Is it rugged and looks long lasting for a continuous heavy duty usage in parallels??? Regards

@robojax

4 жыл бұрын

Theoretically it is not a good idea to connect two of them in parallel as it is very hard to to set exact voltage on both and exact current on both. but you can connect if you can set both at the same value. I have given my opinion, watch the video fully. You haven't subscribed to my channel. I will reply to all Subscriber's 🔔 questions. So make sure to Subscribe.😊

@royalsingh

4 жыл бұрын

@@robojax Thanks for the opinion. Yes, setting all parameters same. Already subscribed!

Very useful demonstration. Just wondering, how hot is too hot for the heatsink on this kind of device? If I can't keep my finger on it, is that dangerously overheated? Or is that normal?

@robojax

3 жыл бұрын

Yes if it burns your finger, that is above 80C so inside chip junction is 50 or 40C more like 120C and that is right at the edge. So check datasheet and see what is junction temperature.

If you put a smal cpu fan that would help with power increase?

Thanks for the good video! What would happen if you use an input voltage of 42V, that is, a little over 40V?

@robojax

3 жыл бұрын

You are welcome. Something might happen like it might smoke . So it might be dangerous. Unless you try it, you won’t know.

@LeyzixTravel

Жыл бұрын

I have the same question. Surmoka, did you try to apply 42v to the input?

I want to control high torque servo like 35KG, i am planning to use this module for 4 servo powering. To get max torque i need 6volt 4 amps. Is it possible to get: --- input 12 volt 4200mah lipo -- want to get 6volt 18amp output??

Hello rj, can you answer my 2 questions. 1. Is a diode needed to prevent back flow for charging a battery or battery can be connected directly to load terminals ? 2. Is there a way to enhance their voc as I see all models come with mostly 40v. Can it be upgraded by swapping out a few components such as input capacitors or so ?

@robojax

4 жыл бұрын

1-No diode needed. this is converter and will not allow current back 2-no you can't change anything. it will not work

8:03 Wow it's working like an mppt. Boosting amps !

@robojax

4 жыл бұрын

LOL

Can i use this to make a mobile charger ? I will parallel 5 usb ports with a current limiting resistor so that the output of each usb port is 5V / 2A.

@robojax

4 жыл бұрын

yes you can but you would have to know the maximum current the battery can handle. It might catch fire if you dont know what you are doing.

thanks for the video, great stuff. can I connect 2 in parallel to have twice the current at the output?

@robojax

3 жыл бұрын

yes you can. BUT and that is a very important but. you have to set both output exactly the same and both current setting exactly the same. then you can connect them in parallel. if you don't, then if there difference, the current will flow from one to the other one and that is dangerous.

@JawaazAhmad

2 жыл бұрын

@@robojax what if we connect a Blocking Diode on output of each of these in parallel to prevent current flowing from one buck into another in case of mismatch. Will that be safe.

@mrgill2846

2 жыл бұрын

@@JawaazAhmad yes, that will be fine

Hi, thanks a lot. Do you know input current when there is no toutput load ?

@robojax

3 жыл бұрын

when we talk about 20A or 20,000mA, 1% of this which is 200mA does not matter. Because most components have 5% to 10% error in them. That's why I did not measure it.

Can input and output be common-grounded? There seems to be a shunt between two negative terminals. What happens if you common ground source and load?

@robojax

6 жыл бұрын

normally ground should be common on DC system. I don't have the device in hand as I don't know where I put it with thee volume of items I am getting to make video for.

Thanks for doing these tests, but some of us are okay with raising the input voltage to offset voltage droop. Unfortunately you didn't actually show how many amps this buck converter can handle on a long term basis. I am pretty sure it would melt down at 20 Amps, but it would have been nice to find out the limit...

@robojax

6 жыл бұрын

I agree with you. The result I have presented based how hot under certain current it gets. If the temperature increased I have reduced the current. It is very hard to satisfy everyone with the result.

@ats89117

6 жыл бұрын

Thanks again for doing the reviews. They are very informative and you are the only one doing them well. But if you can determine how many amps and how many watts a supply can be used for without overheating, I think this would be very useful for many people. For many of us using high power supplies, the load is fairly constant, so voltage droop is annoying but not debilitating. Unfortunately, whereas it is unusual to find a product from Germany that doesn't meet its specs, and most products from the US or Japan or Korea meet their specs, in China, the specs are generally just a list of what the board manufacturer thinks a customer might want to see. So it is always a crap shoot to figure out whether it makes sense to buy a no-name Chinese product or pay three times as much for something with a better pedigree...

@MrGarda42

4 жыл бұрын

ats89117 I feel like you've answered your question already; 3 times more it is 🍻🍻😁

Hi maybe you can help. I want to use this module in a project but want to relocate the two CV and CC trim pots. I have un soldered them and planned to use some 28awg ribbon cable. Approx 150mm long so that I can mount the trim pots in an accessible place. Is this 28awg wire OK or should I use a thicker cable? I appreciate any advice you can give. Thanks and Happy New year!

@E-GaN

2 ай бұрын

These trimmers are there just for the sensing. So, you can use thin cabling.

Can I measure output current by shorting the output or do I need to have a load? I do not have a dummy load and I am planning on using this for some DIY projects, as power supply, and maybe as a battery charger. Nice video by the way but it would have been better if it had CC testing. Thank you!

@robojax

5 жыл бұрын

Normally this is how you set the current. You short circuit the output and set the current.. I have not done it on this module but it should work. You are right I should I have tested it with CC.

@paulofilas6387

5 жыл бұрын

@@robojax I was just worried the chip may not support short circuit and end up frying the module. I'll try it when my module arrives. Thank you for the confirmation.

@brianfaldt1976

5 жыл бұрын

Best to first wind down the CC pot to zero before you short - then bring it up to the desired current. I use a few assorted sizes of car bulbs as Loads. Only a few dollars each.

Hi. What is the chip U3 marking? My module is delivered damaged without this chip :(

@viorelaldea3472

5 жыл бұрын

Lm25116

Hello sir i have a question .. what will happen if the output terminals shorted ? Does it have a short-circuit protection feature or will the module burn? Let's say input voltage is 35v 7amp dc . Thank you so much for the detailed video on this module. I love it

Thank you very much for this great upload. I’m looking to buy one of these. I wanted to ask you a question. If the output voltage is set to 7.5V & 20amps would this be safe and could this converter handle it? Thank you

@robojax

5 жыл бұрын

You are welcome. I have presented my findings. It is you to determine if it works for particular application or not.

@robojax

5 жыл бұрын

If the width of the heat sing from Amazon is wide enough to cover both heat sinks of this convert, then put it on top of this exactly as it is shown in picture. But you would have to put heat transfer paste between them so there is no gap in between and heat is transferred. If the not wide enough, then just use a fan (exactly the same fan ) should help as well.

@LondonMus

5 жыл бұрын

Robojax that’s what I was thinking. But I’d like to wire the fan module onto the step down regulator and have the fan draw the power from the buck converter. Do you know where on the converter I could use for the power source? For example this module has a fan added: Step Down Voltage Regulator Board, Yeeco Numerical Control Buck Converter DC 6-40V 32V 24V to 0-38V 5V 9V 12V 8A NC Digital Adjustable Power Supply Module with LED Voltmeter & Heatsink Fan www.amazon.co.uk/dp/B01E8KZG8I/ref=cm_sw_r_cp_api_i_vrpnCbR9BDZWC How could I do this with the module you have used for this video? Many thanks in advance

@robojax

5 жыл бұрын

it depends on your fan and the input voltage. If you fan is 12V and input is 12V, then connect it at input. If output voltage is matching the fan, connect the fan to the output. If the output is very high, then use another regulator like 780X where ix 5, 9, 12, or 15V

Nice Video... Please can u upload the schematics of converter.

@robojax

5 жыл бұрын

Sorry I don't have the schematic. This is a product I purchased. I have however provided the datasheet in the description of the video.

I didn't have to do this but you can use a tiny amount of Arctic Silver Compound and rub it around the use a magnifying glass

@robojax

4 жыл бұрын

Thanks.

Nice Job sir 👌💐💐

@robojax

4 жыл бұрын

Thanks

You didn't short circuit and set constant current?

waiting converter video thanks

@robojax

6 жыл бұрын

you are welcome.

Hello, Great video, lots of useful information. Can I use two converters like this in series, to get 21V out of a single 15V source? or would it be a short circuit if I made like 10,5V and 10,5V of each and join them? Would then the efficiency be very low? Thank you, Sir.

@robojax

3 жыл бұрын

Yes and NO. Yes if you have separate input source for both. No if you have only ONE power source. No efficiency will stay the same. The output would be some of both.

@unobombers

3 жыл бұрын

@@robojax I see, thank you :)

2:54 you was asking about the name of Chip . It is ( LM25116MHX ) from Texas instruments . And it's 40v max input and it's better not to pass 35v input . And have dual mosfet control for the VC and CC. I get the name after I pop up my'n during sudden input voltage change from 32v to 50v by mistake in my power supply . Everything was fine in test but the DC converter not step down any more and I suspect that this ic was not working and I was not able to find any data sheet about it but I email the company store that in AliExpress from China and they give me the number and I buy 15unit for 5$

@robojax

4 жыл бұрын

Than you very much. I have included the link to the datasheet in the description. it was already there.

What I want to see, is how this module can regulate a constant current under different input voltages, I was expecting that you set a specific output voltage and change the input to see how it constant ut can regulate the voltage under such circumstances

I have a question I have solar 40v I need 14.6v out put

Great review, thanks! I have 2 questions: (1) We always saw this voltage drop. Was it caused by voltage drop between Module and active load? If not, what would you guess if the cause of such ~500mV drop? (2) If the MOSFET was upgraded by another as 2~3 mOhm, I believe power dissipation would be much less. Do you believe it would be worth? Thanks for sharing!

What will happen if the mosfets are changed with higher values ones, is it enough to get rid of the ripples and the heating ?

@anwin85alon

Ай бұрын

Pm me can you to install do sola paint of charger..

Good sir

awesome, can I used it as a solar charge controller to charge lithium cells?

@robojax

2 жыл бұрын

Yes it could

Have you measured the voltage at the source?? I think the cables are dropping the voltage

@robojax

4 жыл бұрын

I used very thick wire from source. So no worries.

Hi, nice review. I got the same converter but I lost the capacitor c15. Would you please so kind to tell which value it has?

@robojax

4 жыл бұрын

Hi, I am not sure I where I put it. I will try this evening when I got home to have a look at it.

@robojax

4 жыл бұрын

sorry I just checked my lab and the garage and could not find the module.

@gianeffe2907

4 жыл бұрын

No problem thx for your help. I ordered another module because I burned one MOSFET and I did realize that the ones soldered are FAKE, unbelievable!! That's why it can't even get close to 20 amps and working at that current for long time. Anyway I saw a video of a Russian guy that has replaced the MOSFET irfb3607 with irf1404 that he claims to be more powerful in terms of current (80A against 162A), but I don't have a proper knowledge to evaluate this option. If you can please let me know.

Hello sir thanks for this review, can i increase my output voltage up to 24vDC with this power module even if my input voltage source is just 12vDC? sorry about my bad english, thank you. edit: Would you recommend one that can achieve that?

@robojax

3 жыл бұрын

Hello, this is "Step down" or "Buck converter" so it ALWAYS reduces. if you want to increase then you need "Boost Converter" See my videos on boost converter kzread.infosearch?query=boost

1 Seller was selling these as a boost and buck converter.

Thanks for the nice video. Can I use this device for charge a 2.6V battery with 20A permanent? I will extend the cooling with big fans. Thanks for help

@robojax

3 жыл бұрын

I don't remember the maximum current this can handle, For sure I always show maximum voltage and current. you come to conclusion from what you see. You are welcome. Please subscribe. I appreciate it and helps my channel grow. Thank you

It seems to me that you are measuring the output at the load and not at the board so you are seeing a voltage drop across the wires.

Looks like the main problem with these supplies is the voltage drop at output. With the current limit they are acceptable, at least someone will load it to the acceptable thermal limit, knowing that is only 8A or whatever. But the output drops so much in voltage that is nasty. What chip is the controller, LM25116? And for me, I would choose transistors with lower internal capacitances

@anwin85alon

Ай бұрын

Pm me can you to install do sola paint of charger..

I buy this model . Since they say it's the is a powerful buck converter 20amp . But as I see it's not 20amp . But I think if we change the coil and the capacitors in output you may get a better results . But I don't know how to calculate what coil need for 20A and what capacitors is exactly what need . Can you test by change the coil with bigger coil and less turn ?

@robojax

4 жыл бұрын

You can do it but it would be very hard. You would have to draw the schematic, understand the design, then calculate the values. So it would be very hard.

Nice video. got exactly the same thing given to me but is missing a componentand have not tested it yet. Would you be kind enough to measure or give me the value of C15 (filter cap on CV out potentiometer). Thanks in advance.

@robojax

4 жыл бұрын

I will try to review this again. You haven't subscribed to my channel. I will reply to all Subscriber's 🔔 questions. So make sure to Subscribe.😊

thank you

@robojax

3 жыл бұрын

You're welcome

Good video! With which converter can I get 5V and 15A at the output so that it does not overheat and shut down? Thank you

@anwin85alon

Ай бұрын

Pm me can you to install do sola paint of charger..

@marox3G

Ай бұрын

@@anwin85alon greeting It's used for electrolysis and stuff like that.

Hi, i want use this to control the current, how is the max ampere if i use input 13v and output 12v?

@robojax

4 жыл бұрын

I presented this test. You should come to conclusion by watching the video.

hi can i change for these Irfp4668 Mbr3045

I have a question. What happens if the input voltage is more than the regulated voltage? For example say I'm trying to get 12 volts from a generator that fluctuates in rpms creating an input voltage range of 5v to 20v and I'm wanting to get 12v constantly.

@robojax

5 жыл бұрын

If input voltage is above the voltage of Capacitors, they will explode. The chip will handle some excess of voltage. I have provided the datasheet. the fluctuation within the input range should not have affect as long as it is just a little above output voltage.

@ThanosSustainable

5 жыл бұрын

For this converter to work, input voltage must always be over the regulated voltage. On your case, you will be getting 5V-12V at the output. If you want to keep the voltage stable at 12V, you'll have to add a large enough capacitor at the input.

@brianfaldt1976

5 жыл бұрын

You need a "Buck / Boost" converter if the input voltage can drop below the required output voltage. This one is 'Buck' only - it can only reduce the voltage. 'Buck / Boost's are available on eBay for about the same price.

This module use 165 watt solar panel good working ya no good working

thanks test

@robojax

5 жыл бұрын

You are welcome.

Hi ... overall is a good efficiency ? And can add one another mosfet and rectified diode for more stable in high current and decreasing heat ?

@robojax

7 ай бұрын

Hi, no. The amount of current depents on the inductor and capacitors and it has been calcualted.

@rawandjaza5929

7 ай бұрын

@@robojax thanks , what about efficiency in overall? Is a good buck converter? I want use it for made bench power supply

Can this be used as a solar panel regulator to charge battery that would boost amps from solar.

@robojax

3 жыл бұрын

this is buck which meant it will reduce the voltage and increase the current. Always remember it is the Power that can not change. voltage and current can always be reduced or increased.

Will this stop feedback from charging a 14.4v trolling motor for solar when charged or charging at nightfall? Not damaging the converter?

@robojax

3 жыл бұрын

what is trolling motor?

@MrBrymstond

3 жыл бұрын

@@robojax It's a motor that works similar to a boat engine, it allows you to travel slowly on water.

THANKS

@robojax

5 жыл бұрын

You are welcome.

If I hook my 18v 100w solar panel to this and set the output voltage to about 14v to charge a lead acid battery, can I leave it on all the time will it overcharge the battery? Thanks

@robojax

3 жыл бұрын

Hi, you have to know how charge happens. you set the maximum current AND maximum voltage for your battery. For example 14V. if your solar panel's voltage goes lower than 14V the charger will turn OFF. but any voltage above 14 will charge your battery. I will make video on this topic using different modules. stay tuned.

If I want to set it to output 5A max, can i directly hook a multimeter to the output terminals and adjust the current limiting potentiometer until the multimeter displays 5 Amps? Or will this damage the buck converter? Btw thank you for these reviews, I've learned a lot from your videos.

@robojax

3 жыл бұрын

yes you can connect. CC or Constant Current means it will limit it.

@pipoypipoy7796

3 жыл бұрын

@@robojax wouldnt that short the buck converter?

@robojax

3 жыл бұрын

CC means it has protection. you have to short circuit it to set the current.

@pipoypipoy7796

3 жыл бұрын

@@robojax ok thank you very much!

@robojax

3 жыл бұрын

you are welcome.

hello! I have bought this buck converter but, it cant hold a constant voltage and when i put a load on it the voltage drops significantly. and also can i use this for my home made li-ion 37v battery to reduce the voltage to 12v? good video btw!

@robojax

4 жыл бұрын

Hello, Voltage drop is due to current setting. when the current reach to set value, in order to keep the current constant, the voltage is reduces. try increasing the current using potentiometer to maximum. it should work.

Okay, so im planning on using this buck converter in combination with a 7s bms to charge a set of li-ion batteries (3 in parallel, 7 in series). if i set the cv to about 30v (4,25 x 7) and the cc to 4,5a (1,5 x 3), would this work to charge this entire setup without damaging the batteries. If the cc and cv work in the right way this should work?

@robojax

4 жыл бұрын

first of all this is NOT a charger. Charger monitors voltage and current and makes adjustments. But if you monitor it manually it will work.

@Sander7897

4 жыл бұрын

@@robojax but this step down converter has both cc and cv, doesn't this basically mean that it caps the amount of current and voltage the batteries can get? (Say a max of 1,5a per cell till the cell reaches allmost 4.2v and then it tops at 4,2v per cell and will let the current drop. (Maybe smart of me to say I was also planning on using it in combination with a 7s bms

@robojax

4 жыл бұрын

when you set the CV at 12V and CC at 2A, it keeps the voltage 12V and current 2A. once the charge continues, the voltage slowly increases in the battery and as it tries to increase the current is decreased. the CC and CV means lower than those values and NOT higher. So they can go lower.

At 12v input and 9v output can it reach 15 Amps for a project or the 9 Amps is the max for these volts? Thank you

@robojax

5 жыл бұрын

just do the math. Voltage and Current (i) with unit A, V x A = Power, Output power can never be the same as the input because of loss in the conversion process. For example for output of 9V and 15A 9Vx15A= 135W so your input should be higher than input (I have mentioned the efficiency in the video) . if efficiency is 90% (10% loss), then 135W + 10% loss , we have 135 x 1.10= 148.5W or ≈ 150W, then 150W ÷ 12V= 12.5A. So if you have 12.5A at input with 12V, you should get 9V and 15A at output.

@michalis5817

5 жыл бұрын

@@robojax do you think it is reliable to use it in a rc car or is it just too much for it ? Thank you

дякую, друже

@robojax

4 жыл бұрын

Будь ласка. Ахмад з Канади

Can this be used with solar panels as a charge controller ?

@robojax

4 жыл бұрын

Yes it. can.

Can I use this circuit to limit current. For example if I input 12v from a battery and get output of 12v with limit of 10 amps. Is this possible?

@theransomgamer

2 жыл бұрын

Thanks in Advance. You have explained everything about this circuit very clearly. Very nice review.

@robojax

2 жыл бұрын

That feature is called Constant Current or CC. I don’t remember what I did in this video but if it has CC feature I should have explained it

Please how do you regulate the output current from this buck converter

@robojax

3 жыл бұрын

Please learn it from this video kzread.info/dash/bejne/qod9m81ucq6Tmrg.html this is my other channel .

Can i know which sendust core is used in the buck converter

@robojax

2 жыл бұрын

What is sendust?

can i supply with accu 28volt70ah ??(2 pieces accu 12v70ah with series circuit)

@robojax

3 жыл бұрын

Voltage is voltage . You can connect from any source

Can I use 2 wells in series to reduce the voltage by 60 volts?

@robojax

2 жыл бұрын

Yes you can but keep in mind that GND is common.

Which IC is used for the regulation of voltage?

@robojax

2 жыл бұрын

Please bread the comments it has been mentioned

4:04 over two years later, i can read the chip on my board. it is JM13AJ LM25116 MH

@robojax

3 жыл бұрын

Thank you for sharing.

Good job bro One doubt this converter connecting 21volt DC, 16 amp current input suitable? My input device is solar panel. Plz give ur valuable information?

@robojax

3 жыл бұрын

Hello, I am de the video to answer such question. perhaps you haven't watched the video. please watch whiteout skipping and I can assure you , you will get the answers. I don't it and have to watch to answer it. so you watch.

Why output current is more than input current??...can i increase solar panel ampere by this buck converter???

@robojax

4 жыл бұрын

you should know the meaning of Power. Power=V*I= 12*2=24W you can get only 24W - 15% to 20% losses. do the same math on the output. You can never get more Power but you can get higher current like 5A at output then 24W÷5A=4.8V or if you want 50V at output 24W÷50V=0.48A. As you can see the power is not changing. it is just voltage and current that goes up and down and yes we can do that. I will make a video on that because many people ask questions about it. Make sure to subscribe so you get notified when I post videos.

What software are you use for this test ?

@robojax

6 жыл бұрын

I am using Rigol Electronic load that comes with the software www.rigolna.com/products/dc-power-loads/dl3000/

Witam zrobiłem zwarcie na wyjściu przy minimalnych ustawieniach volt i amper, co mogło się uszkodzić.

@anwin85alon

Ай бұрын

Pm me can you to install do sola paint of charger..

Hello this modul inpute voltage 53V so much? Thanks

@robojax

4 жыл бұрын

no the input is NOT 53V. it is 35V.

What will happen, if i add only xl6009 single mosfet on xl6009 boost converter circuit. Then can it increase more ampere....?

@robojax

3 жыл бұрын

you can't just add it like that. will not work.

@learninge634

3 жыл бұрын

Thank you sir..

can you test imput 14v and ouput 12.6 please ?

@robojax

3 жыл бұрын

I did range of tests so you come to conclusion from that. All standard voltages.

Can i join 2 converter in Perallal with same voltage for 40Amp? Just I need 13v 40A output. Please ans......

@robojax

2 жыл бұрын

Hi, yes you can IF and ONLY IF you set the exact output voltage AND maximum current so the current is not limited. have you visited my other channel where it focuses only only power module, chargers and energy? kzread.info

Is the voltage drop occurring in the module itself or on the cables. Is the voltage drop on the cables tolerable in this test?

@robojax

2 ай бұрын

current does not drop. But voltage always drops on cables. but if you are referring to the voltage drop of the module, it is called "effeciency" and yes. I have shown it in the video.

@E-GaN

2 ай бұрын

@@robojax I meant whether the voltage drop occurred on the module itself or on the cables. Or is the voltage drop tolerated in your calculations. Because I've tested one of these modules that turned out to give out 26 Amps at a constant, fixed 1.5V. It was a pulse if you are wondering.

Hlo sir.. Your review is amazing. I realy love it.. If I will add mosfets to this circuit. Parllely.. It helps in increase amp rating??

@robojax

3 жыл бұрын

Hello, I am glad you liked this. It will not work. you need total modification. The constant current section is checking for specific current and turning the voltage low when it detects certain value.

@growupskills5708

3 жыл бұрын

@@robojax thankuu for the answer..

@growupskills5708

3 жыл бұрын

@@robojax i want to connect input 20v 12amp (240) watt power and at output 15v at max current(may be 15 amp) ... Can it work or not sir.?

@robojax

3 жыл бұрын

if it works or not, I don't know . to answer your question, I have to watch the video. So you watch and see which part is closer to your voltages and decide if it works or not.

@Tesla_UFO

3 жыл бұрын

I tried to connect 12-24 V DC- brushed motor to this DC-DC, as input I used 12 V battery, Voltage regulating is working normal, if you connect any voltage, as output You can become 1-2 volts less, as input. I could not become >11.2 V from 12 Volt input. Current was about 280 mA and current regulating works not or it need some A current for regulating, Adjustable resistor for current could not change the current 270-280 mA, and I am thinking, if I must send that back (defect) or it is normal...? Later I will try with some powerful motor. If it can give more current, as input, I don't know, you can try or wait answers , who did that already. I think, you can count like this, your output power will be about 5% less, as input power. In your case 20x12=240 -5%=228Watt,, 15Vx15A = 225 Watt, in theory it can that, in practice I don't know.