very nice work sir. I learn exactly what I want. I am happy watching your video does not waste my time. People like you must be appreciated. (thank you)
I think this 2A meant to be the current which can draw maximum at any conversion. So for an example 12 to 24 conversion if you set the input current to 2A, 12Vx2A=24W and the output will be 24W/24A - (loss of the conversion) = less than 1A. So I hope it works as they specified.
"...24W/24A..." I guess you meant 24W/24V (Volt not Amp)! Other than this I think the same. Test failed by 12 to 24 with 1.5A but got kind of better with 1A and passed with 0.5A, so if you calculate the inefficiency or as you say loss of conversion something between 0.5A and 1A should be in the advertised 2A max. in this case.
Just calculated for module 2Amp maximum for input ( actually is too much) and depends how many times increase voltage with same times divide current on output from 2Amp. But keep in spare Calculate 1.7A in inlet. If want from 5V to make 10V 2 times output current 1A . If want from 5V to make 20V 4times output current -0,4-0,45A Better find other modull :)
Seller explained and I followed his instructions and it worked, if you've spun it the wrong way 20 times it can 50 or 60 turns the other way to get it right, once you hit the sweet spot they work great. Seller does mix up counter clockwise and clockwise in the image but good product.
Nice video! I appreciate how you showed that the chip got hot with high load as well as when using a large input/output voltage difference. The MT3608 is quite a powerful little chip, but one needs to understand the limitations of these modules. I killed one myself when making a 9V rechargeable Li-ion battery and then fixed the module by replacing the chip. On my channel you can find the videos I made about that. Perhaps you like to watch those...
Now I understand that this module can only handle 1A of current, not even 2A. Or maybe yes, if the output voltage is very low at 3.3V and 2V input, bcs low voltage means higher current. Once the voltage higher, the current limit probably getting lower.
remove the 100k trim pot and replace with a resistor of 39k and 50 k variable resistor with a knob.you will get a range of 10 volts to 22 volts.or 39k and 82k to get 10 volts to 27volts. or 39 k and 90 k to get 10 volts to 30 volts.
Just little comments like "don't give up" on the turning until the increase kicks in saved me a lot of hassle, thanks, I thought a 6 pack of these were DEAD! lol :) thanks so much!
did it already.added 82k resistor to 22k trimpot.this is for the version where the 3 rd leg of the precision trimpot IS connected and the voltage variation only occurs over about 20k. in the second variation the 3rd led of precision trimpot is not connected to anything and voltage variation occurs more evenly over a 100k normal trimpot
Can you suggest a more power boost module with min. input ~2.5V and display ? I know these color display can't work below 3V so we need display without backlight like the one on BT-168 Pro that can read up 0.8V
I have given input to this module from Li-ion battery chaging module to get 12V output. When battery voltage drops around 2.8v or lower, the out put is not maintaining 12v. It's reduce time to time. I mean, if I connected 12v LED strip to the output then, blinking happens. Can you pls advice ?
Thanks for the info but do you see a pattern of the current ability? Does it go down as the input and output voltages get closer or further apart? Also how does the input voltage affect the output current ability? Thanks for any help you can give.
Yes, it's working only 1A for Dc motor i try this directly connected to bms motor running speed, but through step up module slowly running but voltage is showing 12V but motor is slow down. Even XL6009 module also
It is 2A switching curreent, NOT output current. So (over simplified) if voltage doubles the current halves AND less with switching loss so 12 -> 24V likely 900mA max.
and here is schematic for the module www.kynix.com/editor_u/pdf/20220222/Operation-Of-the-Mt3608-Step-Up-Module.jpg shown in this page www.kynix.com/components/MT3608-DC-DC-Converter-Datasheet-Circuit-Schematic.html
i am a total noob on electronics. i am planning to use this for my 9v music pedal. it draws less then 1 amp. i want to use my powerbank (5v output) as my power source. this mt3608 would work for this purpose? thanks.
I want to connect 2 same modules MT3608 in the outputs 3.3V/16A and 5v/25A of a PSU ATX. Can I do this? Is there a danger about the high output currents 16A and 25A of PSU ATX for damage (burning)?
@@robojax Hi my friend. I have watched the video. I know the maximum output is 2A. I think you have not see my question. I ask about the INPUT of the high currents 16A and 25A of PSU ATX.
it is all about power P, voltage V and Current I. Now P=V*I, input V=5V, I=1.5V, P=5*1.5 = 7.5W and using for output this P=I*V we can find I=P÷V, P=7W because0.5W is wasted as heat. V=27V, I=P÷V= 7÷27=0.259A so yes you can get 250mA. Now remember it is all about power.
Obviously it cannot handle the 2amps it advertises. These boards have a bad reputation of burning up. I would definitely not use it for my projects. Good demo thanks for putting that out there,people need to know what they are buying.
it will for sure output 12V because it is boost converter. It is all about power P=IxV where I is current in Ampere. Output power can NEVER be greater than input. We will always have 5% to 20% losses.
I am learning a lot from your videos, thanks :-) Is it recommended to use converter to regulate 2x1.2V AA = 2.4V to 5V for Arduino? (if I want to have minimal batteries for portable arduino project with low current consumption)
You are welcome I am glad to hear that. If you need 5 volts, yes you can use 2AA batteries but you must connect them in series (+ of one to - of another and you will let with + and - to use. This can power small project with very little power. Also the quality of AA batteries very. Make sure you get good quality so they last longer.
here on page 6 of datasheet, there is formula for Vout. you need VREF which says is 0.6V. So you pick your let's R2 10k ohm and find R1. you can use also online calculator to find the unknown.
I have to convert 3.7v - 5v I am Using a lipo battery. I am giving power to an Arduino pro mini. I have to rotate 3 × 3.7 v motors. Is it the best option ? Plz hlp.
voltage has no meaning. it is the power or current that is important. I have shown how much current (power =voltage X current) this module can handle. so see that and if the total current for your motors does not exceed the value I shown, yes you can use it. for the the voltage I have shown what is the minimum voltage that you can connect.
AOA bro. i m trying to use this module to charge battery.inpu voltage is 3.5V. i m using piezo electric plate to get voltage but this module is not working. when i connect this module suddendly voltage drops to half even on the input side of the module. can you plz explaint his to me. what should i do?
I bought 3 of those very modules from ebay - none of them seem to work, I tried 5V USB in and get out 4,7-ish volts out, turning the adjustment pot (multiple turns!)does absolutely nothing, stays at 4,7V. On Tried 9V battery as input, the same behaviour on all three modules, am I doing something wrong o_O ? I'm not a total electronics noob and double-checked polarity in/out side..
@@robojax Thank you for your answer, but what do you mean "rotate it" ? I did of course triple-check for correct polarity! Or do you mean the modules are mis-labeled?
@@alnicospeaker rotate the trimpot 360x clockwise or counterclockwise..don't give up. :) mine stuck same as you, but after so many rotation, the voltage start increasing.
Dear Sir , pls resolve my problem I suddenly reverse the polarity to the module and switch on . A small spark on big Diode . I disconnected the supply ASAP. Now my boost module not working. How to repair it ? ☹️☹️
@@robojax Thank you Sir for quick reply. I always very aware about polarity of any circuit/ Module so This would be my first MODULE which burnt by me . Mistakes makes a perfect learning for anything .😎😎
Hi, calculate the input power 3x5=15W and the output power 14x1=14W output is less than input, so it should work. See my test as I don’t remember what value was on he current at that voltage. If it is 1A output then you bare good.
Hi, I wanted to step up 3V stable output from arduino to at least 7- 10 V for the load. But looks like this is not working for me. Did this thing broke? Should I try a new one? I have turned the screw many times in both clockwise and anticlockwise direction nothing is happening? Any guess?
Hi, yes and No. No because not all Arduino has Digital to Analog (DAC), Yes, get a board that has DAC and you may build extra circuit to make it work. not all converters can be connected to Microcontrollers such as Arduino.
Can i get 2A at 5V output with 3V input please ? In boost mode only I need as I have 3.7 V 18650 battery. Also please tell me the load you are using - I just use 5ohm two resistors in parallel.
it is very bad idea to charger battery with this a s this does not limit current. you should get a module with Constant Current or CC so you can set the limit and that way your battery will not get damaged. Good luck
I think you have totally misunderstood. I'm not looking to charge a battery in first place. I 'm trying to connect a load to this booster that draws 2A at 5Volts. Is this booster good for such application ?
@@robojax i watched it - you go high all the time never go low- so it is simply not available to watch. do you know any booster chip that can boost from as low as 2v to 5 v please ?thank you
Can this be used to just boost a power drop back to 5V. I'm making a long LED run and would like to patch in something that will boost the power back up to the original voltage as it starts to drop.
first why power drop? if power drop is not due to weakness of sours. This booster uses the power. if the source can supply enough current, it will boost it.
Thanks ..excellent rewiew .I want to use it with lion battery at rc glider plane .if input is between 2.8v-3.7v ,output is 5v. How much current is it handle stable .can I get 1.5 or 1.7 amper ?Thanks
You are welcome. I believe I give the answer in the video. If I want to answer your question, i would have to watch it the video. so you watch it. It is the power. P=IxV (I is current , v is voltage). So Output P = ) ( Input P -15% of input)
i replaced the100k 25 turn multi turn pot with a normal 100 normal 270 degree trimpot. the 25 trimpot is really stupid and you need a screwdriver and there is no knob for it anywhere
I am looking for a electronic load like the one you have. Will you please tell me the model, web site and other info for me to order one. If you have recommendations for other units please let me know. Thank you.
I got same modules from ALI however they deliver only max 400mA from input 3.5 to output 5V. The chip used on my modules is marked XT1208, I assume it is a fake or a chip with lower current capability, anybody knows about that model?
see the test I have done. I am not sure what was the current. Also if you input source can't supply more power, the output will never do that. for example if you want 5V 800mA the Output power Po=5(0.8)=4W then the input power Pi=4(1.15)=4.6W (1.15 is 15% losses). So when your 3.5V, I=P÷V=4.6÷3.5=1.31A, are you supplying (at least) 1.31A to the module? Good luck.
I made this video to answer such questions. Just set the output to 3.3V and apply your voltage at input. That is it. I showed in the video that if you change the input voltage, the output does not change. Please watch again and do not escape.
@@robojax thanks for your answer sir, but as per datasheet of mt3608 it output from 5volt and above. I am really confused. I want to power esp32 at 3.3volt and make use of lithium polymer battery (2.8volt min max 4.2volt)5000mah. If so as you say are you sure that mt3608 will give 3.3v constant outout from 2.8-4.2v input. If you give me green flag i will buy the module then . tight on budget i need to buy five modules . please help
sorry I misread your question. This will never reduce the voltage lower than the input. So if you want to get always 3.3V, then you need to use buck-boost converter which does that. it will give you 3.3V with 2.8V and 4.2V. Or use two module, first use this to get output like 10V, then use 3.3V regulator to get 3.3V from the 10V. This way you will always have 3.3V.
@@robojax If I use booster to generate 10v and then again convert to 3.3volt my power losses increases. I found one module which takes input 2.5 v - 12volt DC and output to 3.3 volt constant.
Hello, Can use 3 of these these things in parallel to get a higher amp output (about 2a) at 12v? Could I connect the output wires from 3 modules? Thank you
theoretically yes. But practically very hard. it would be very hard to set EXACT voltage and current. If there is slight difference, then one module will act as source and the other as load and that would be very bad and they might overheat quickly. Get this item instead ua-cam.com/video/EJ0-T4uXjAY/v-deo.html
can i use this for my speaker project it draws 5v 2a and the power supply for the booster is 3.7v battery 4600 mah(fully charged it goes to 4.2) waiting for your reply 😊
No you can not. The power you are providing is 5V and 2A, 5x2=10W, and you are expecting to 9V and 2A which is 9x2=18W. You can get 10W if efficiency is 100%. In this case you will get less than 10W.
you did not mention the voltage from solar, but his doesn't have current control if you are charging lithium battery , the battery get damaged if voltage or current exceeds the limit.
@@robojax Thanks for your help! Ok to be more clear i have 4 solar cells, each is 0.5v and I plan to put them in series so I get a total of 2v. Then I plan to use this boost converter to make it 12v, and connect that to a 12v solar controller so that it can charge a 12v batter connected to the solar controller. Will that work, can you please tell me?
I don't remember the minimum voltage this module needs so watch it. if it is within equal or greater than minimum input voltage of the module, then yes. Keep in mind that the total power is that matters. for example if you have 2V and 12A P=2x12=24W so you input 2 watts. and this module can't add anything into power or watt. you may get 12V and 2 because 2x12=24W. this is ideal. converts have 10 to 15% losses. keep that in mind.
Thanks for review, and very detail testing, Im planning a project, Power an Amplifier from 2x USB ports, will this work ??? Amp = TPA3110 type, with 2x 10watt 4ohm Speakers. Trying to power this thing from 2x laptop USB ports with this boost converter (5v to 12V), already tested my usb ports, both ports can handle 5V @ 1.5A = 7.5W each = 15W for both USB ports (possibility more if i change to better shorter cables) Planing to connect the 2X USB ports in parallel into the boost converter? If i get minimum 15W output that should be enough to power my amp/speaker in medium volume.
I have read this 3 to 10 times and every time I come across it under "no answered" comments. Just calculate the power for your amplifier. For this module you can get the power form my video.
Hey dude. I've just been tatting about on a similar project. You can power a 10w (sound level) battery powered amplifier (Kustom KGBAT10) via a 2.1mm Jacked 5v to 12v step-up transformer. Works well. Bear in mind sound wattage is different to power wattage. I'm gonna stick a multimeter in the circuit to measure current and see what the load in real-terms is. I used an Imuto 20a/h powerbank.
Hope you could possibly help. I was looking at these but after watching your video I don't think these work for me. I need to boost 5v-9v but I'll be varying the input voltage between 2-5v and I need the output voltage to move in relation to the input voltage. Is there a similar product that will do this for me? Thank you in advance
What you are looking for is called amplifier. This is regulator and keeps the output fixed regardless of input voltage. Amplifier will have some gain factor for example x3 or x100 or x2.5 and whatever the input is, it will multiply it by the fact as longs as it is within the limit of the device.
Robojax not sure if I'm completely wrong but could I just use a standard 10w 8ohm speaker amplifier or would I need something more specific to accept the 5v coming in?
Speaker amplifier is not suitable as the input and output are non linear, meaning the output doesn't follow the input in a straight line. it is more curved and you will not get desired result. How ever it is possible to convert or make one of these modules to your application using arduino. But you would try different module and find the right one. Using Arduino you will read the pedal voltage, and correctly send signal to the potentiometer point of the voltage regulator and will act as if you rotate the potentiometer and the output voltage is changed.
now this is what i call a test, well done! So if i have a variable 2-4V@60-400mA imput, can this board hold a Voltage of 6V or will it change if the imput Voltage is unstable?
at 01:14 (click to watch) I have shown that 2V is at the very edge where the module will not work. At 03:00 I have explained that the output is stable even if you change the input.
oh, and you may like the "MCP73871 Power Boost USB 5V" Board, The black one, it can Charge and supply power to the applikation at the same time and so on, maybe you get one to test it?
Like most Chinese products, it has no model number. It is called 150W electronic load and I just added a search link to eBay where you can click and find it.
very nice work sir. I learn exactly what I want. I am happy watching your video does not waste my time. People like you must be appreciated. (thank you)
Thanks and welcome
I think this 2A meant to be the current which can draw maximum at any conversion. So for an example 12 to 24 conversion if you set the input current to 2A, 12Vx2A=24W and the output will be 24W/24A - (loss of the conversion) = less than 1A. So I hope it works as they specified.
"...24W/24A..." I guess you meant 24W/24V (Volt not Amp)! Other than this I think the same. Test failed by 12 to 24 with 1.5A but got kind of better with 1A and passed with 0.5A, so if you calculate the inefficiency or as you say loss of conversion something between 0.5A and 1A should be in the advertised 2A max. in this case.
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Just calculated for module 2Amp maximum for input ( actually is too much) and depends how many times increase voltage with same times divide current on output from 2Amp. But keep in spare Calculate 1.7A in inlet. If want from 5V to make 10V 2 times output current 1A . If want from 5V to make 20V 4times output current -0,4-0,45A Better find other modull :)
pm me can you to install do sola paint of charger.
Seller explained and I followed his instructions and it worked, if you've spun it the wrong way 20 times it can 50 or 60 turns the other way to get it right, once you hit the sweet spot they work great. Seller does mix up counter clockwise and clockwise in the image but good product.
Perhaps you escaped the video. Watch it carefully and I have explained the exact issue you are facing.
thank you, I actually want to buy this, your video make me more confident, I hope my diy power bank work
You are welcome. Please subscribe. I appreciate it and helps my channel grow. Thank you
Keep hoping
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Nice video! I appreciate how you showed that the chip got hot with high load as well as when using a large input/output voltage difference. The MT3608 is quite a powerful little chip, but one needs to understand the limitations of these modules. I killed one myself when making a 9V rechargeable Li-ion battery and then fixed the module by replacing the chip. On my channel you can find the videos I made about that. Perhaps you like to watch those...
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Magnificent review, straight to the point, Current and voltage tests are appreciated :')
New subscriber
thank you very much. I appreciate it.
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exactly the kind of video I was looking for.. thank you!
Glad it was helpful!
@@robojax please will it work for 3.7v-4.3v input and 5v output?, I want to use it for 18650 battery to 5v. Nice video 👍
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I prefer the XL6009 boost module the MT 3608 burn out easily
Now I understand that this module can only handle 1A of current, not even 2A. Or maybe yes, if the output voltage is very low at 3.3V and 2V input, bcs low voltage means higher current. Once the voltage higher, the current limit probably getting lower.
I know that this is an old video, but the info is still relevant. Thank you for posting it.
you are welcome. this module is based on one of the best boost converter chip and it will be valid for very long time I believe.
pm me can you to install do sola paint of charger.
remove the 100k trim pot and replace with a resistor of 39k and 50 k variable resistor with a knob.you will get a range of 10 volts to 22 volts.or 39k and 82k to get 10 volts to 27volts. or 39 k and 90 k to get 10 volts to 30 volts.
Just little comments like "don't give up" on the turning until the increase kicks in saved me a lot of hassle, thanks, I thought a 6 pack of these were DEAD! lol :) thanks so much!
Yes. LOL
pm me can you to install do sola paint of charger.
7:55 this what i'm looking for, thanks
did it already.added 82k resistor to 22k trimpot.this is for the version where the 3 rd leg of the precision trimpot IS connected and the voltage variation only occurs over about 20k. in the second variation the 3rd led of precision trimpot is not connected to anything and voltage variation occurs more evenly over a 100k normal trimpot
In order to compare MT3608 outputs comprising voltage (V) and current, it is a good video. Thank you...
You are welcome
Can you suggest a more power boost module with min. input ~2.5V and display ? I know these color display can't work below 3V so we need display without backlight like the one on BT-168 Pro that can read up 0.8V
Here are my videos on other channel which is focused on power module , chargers etc ua-cam.com/users/wattHour
Thank you, that was a very informative review!
Is there a better DC Booster that also works from 2V but can handle higher output amperage?
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Will be using it on a 5v 2a battery pack
I have given input to this module from Li-ion battery chaging module to get 12V output. When battery voltage drops around 2.8v or lower, the out put is not maintaining 12v. It's reduce time to time. I mean, if I connected 12v LED strip to the output then, blinking happens. Can you pls advice ?
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Thanks, now I at least know I can expect this thing to work 5~8,4 V 1,2 A Great video
Thanks for the info but do you see a pattern of the current ability? Does it go down as the input and output voltages get closer or further apart? Also how does the input voltage affect the output current ability? Thanks for any help you can give.
The output is independent of input . Please see datasheet for full details: www.olimex.com/Products/Breadboarding/BB-PWR-3608/resources/MT3608.pdf
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If i feed it with 3.7v 2a lithium battery at output converted it to 12 what will be amps 2 or less then 2
This exactly why I made the video for. Please watch ans come to conclusion.
Yes, it's working only 1A for Dc motor i try this directly connected to bms motor running speed, but through step up module slowly running but voltage is showing 12V but motor is slow down. Even XL6009 module also
If your boosters voltage is not increasing turn it 15 to 20 turns in both clockwise and anticlockwise
this is the most import point of this video.
@@robojax yea True
thanks for reply
It is 2A switching curreent, NOT output current. So (over simplified) if voltage doubles the current halves AND less with switching loss so 12 -> 24V likely 900mA max.
The magic word is POWER!
Looks like 3W is the limit without overheating. So (Vout-Vin)*Iout
yes. it is .
Many thanks Robojax. Very useful video. :)
you are welcome.
Mt3608 based boost convertor is very good than others, stable output, it's very good for power bank
yes I agree.
Robojax xl6009 regulation very poor for low voltage performance.
please can you teat for 3.7v input to 15v 1a....if the voltage would be stable to power 12w led bulb..the led cob is rated 12v 200ma
Thanks
Thanks for this, I was facing Voltage drop problem.
You are welcome.
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UA-cam is amazing only because of people like you
than you. this very kind of you. Thank you for not skipping the ads and keep watching it. This will help me a lot.
pm me can you to install do sola paint of charger.
pm me can you to install do sola paint of charger.
What do you recommend that has a stable output for 2A? I'm having issues powering a ESP32, probably because of this.
Trow it away it garbage
ESP32 does not need 2A. There must be some other issue.
Thanks, great video..!
I was very curious what the currentdraw is with no load attached. (for battery powered projects)
You are welcome. Thank you for not skipping the ads and keep watching it. This will help me a lot.
pm me can you to install do sola paint of charger.
Hi dear. Can you inform to me the both smd capacitors value which is placed on left side and right side of the small chip. Thanks and regards
Hi, see the datasheet here www.olimex.com/Products/Breadboarding/BB-PWR-3608/resources/MT3608.pdf they have mentioned the capacitors values
and here is schematic for the module www.kynix.com/editor_u/pdf/20220222/Operation-Of-the-Mt3608-Step-Up-Module.jpg shown in this page www.kynix.com/components/MT3608-DC-DC-Converter-Datasheet-Circuit-Schematic.html
Can it supply 3 amps or 2 amps because all of the listings on aliexpress says 2 amps same model number same one
Ok i see now thanks for your video
i am a total noob on electronics. i am planning to use this for my 9v music pedal. it draws less then 1 amp. i want to use my powerbank (5v output) as my power source. this mt3608 would work for this purpose? thanks.
yes I should work.
Nice video. Any boost module which can boost 3v to 12v minimum and can handle current of 3A without any heat sink.
You said fixed in and fixed out but what I saw was variable in fixed out. I am after 2.8-4.2v in to 4.5v out.
I want to connect 2 same modules MT3608 in the outputs 3.3V/16A and 5v/25A of a PSU ATX. Can I do this? Is there a danger about the high output currents 16A and 25A of PSU ATX for damage (burning)?
hello, it seems you have not watched the video. the maximum output is 2A only.
@@robojax Hi my friend. I have watched the video. I know the maximum output is 2A. I think you have not see my question. I ask about the INPUT of the high currents 16A and 25A of PSU ATX.
Can I use it to have an output of 150mA - 27V with 1.5A - 5V Input. Will it be able to even covert 27V from 5V.?
it is all about power P, voltage V and Current I. Now P=V*I, input V=5V, I=1.5V, P=5*1.5 = 7.5W and using for output this P=I*V we can find I=P÷V, P=7W because0.5W is wasted as heat. V=27V, I=P÷V= 7÷27=0.259A so yes you can get 250mA. Now remember it is all about power.
Obviously it cannot handle the 2amps it advertises. These boards have a bad reputation of burning up. I would definitely not use it for my projects. Good demo thanks for putting that out there,people need to know what they are buying.
How do you stop it from turning off when you conect a load
reduce the load capacity. if this module can handle only 1A and you connect 2A, it will shut off.
suggest me 2A output bored not getting heat up
Hmm. If input is 7.4V, is that chip able to provide 1.5A@12V?
it will for sure output 12V because it is boost converter. It is all about power P=IxV where I is current in Ampere. Output power can NEVER be greater than input. We will always have 5% to 20% losses.
is it possible to hook it up to the led without xl4015
what you do mean by "without the xl4015"? LED needs power and this module provides it. Just set the volage of your LED and it should work.
I am learning a lot from your videos, thanks :-)
Is it recommended to use converter to regulate 2x1.2V AA = 2.4V to 5V for Arduino?
(if I want to have minimal batteries for portable arduino project with low current consumption)
You are welcome I am glad to hear that.
If you need 5 volts, yes you can use 2AA batteries but you must connect them in series (+ of one to - of another and you will let with + and - to use.
This can power small project with very little power. Also the quality of AA batteries very. Make sure you get good quality so they last longer.
So basically, with a decent heatsink/cooling, it could work even better?
Yes
Can it continue work at input 3.7v and the output 24V 0.19A ?
Ye so believe if you monitor the temperature. So test it for 2 days in a safe place see if works
Can anyone tell me what will be the value of R1 AND R2 if we want to get fixed 6.7V output not using rheostat to adjust.Input is 3.7-4.2v
here on page 6 of datasheet, there is formula for Vout. you need VREF which says is 0.6V. So you pick your let's R2 10k ohm and find R1. you can use also online calculator to find the unknown.
I have to convert 3.7v - 5v
I am Using a lipo battery.
I am giving power to an Arduino pro mini.
I have to rotate 3 × 3.7 v motors.
Is it the best option ?
Plz hlp.
voltage has no meaning. it is the power or current that is important. I have shown how much current (power =voltage X current) this module can handle. so see that and if the total current for your motors does not exceed the value I shown, yes you can use it. for the the voltage I have shown what is the minimum voltage that you can connect.
AOA bro. i m trying to use this module to charge battery.inpu voltage is 3.5V. i m using piezo electric plate to get voltage but this module is not working. when i connect this module suddendly voltage drops to half even on the input side of the module. can you plz explaint his to me. what should i do?
voltage drop can be two things. 1- faulty module 2-you are overloading this module
@@robojax i have 2 different module both have the same prob.
@@robojax no bro actually piezo output current is very low thats why this module is not working with piezos.
I bought 3 of those very modules from ebay - none of them seem to work, I tried 5V USB in and get out 4,7-ish volts out, turning the adjustment pot (multiple turns!)does absolutely nothing, stays at 4,7V. On Tried 9V battery as input, the same behaviour on all three modules, am I doing something wrong o_O ? I'm not a total electronics noob and double-checked polarity in/out side..
you have to try and rotate it. This exactly what happened to me. I have over 10pcs and almost giving up thinking they are all bad. But they worked.
@@robojax Thank you for your answer, but what do you mean "rotate it" ? I did of course triple-check for correct polarity! Or do you mean the modules are mis-labeled?
@@alnicospeaker rotate the trimpot 360x clockwise or counterclockwise..don't give up. :) mine stuck same as you, but after so many rotation, the voltage start increasing.
Dear Sir , pls resolve my problem
I suddenly reverse the polarity to the module and switch on . A small spark on big Diode . I disconnected the supply ASAP. Now my boost module not working. How to repair it ? ☹️☹️
Hello, this has very minimum components. repair would cost more than the module. Do not waste time on repair. get new module.
@@robojax Thank you Sir for quick reply. I always very aware about polarity of any circuit/ Module so This would be my first MODULE which burnt by me . Mistakes makes a perfect learning for anything .😎😎
Can i use this for a peltier generator so ican increase the voltage?
this is what is made for. yes. Pay attention the maximum voltage of this module or else you will bur it.
@@robojax Thanks i only need 12V output ithink it wont burn it LOL
Hi. I have a power bank 20.000mah 5v output dc 3A and i want to step up to 13.8v 1A it will be successful or fail?
Hi, calculate the input power 3x5=15W and the output power 14x1=14W output is less than input, so it should work. See my test as I don’t remember what value was on he current at that voltage. If it is 1A output then you bare good.
Hi, I wanted to step up 3V stable output from arduino to at least 7- 10 V for the load. But looks like this is not working for me. Did this thing broke? Should I try a new one? I have turned the screw many times in both clockwise and anticlockwise direction nothing is happening? Any guess?
Same problem here .
Have you found a solution,Any one Help.
Hii thanks for the video. Can an Arduino control the Volt output from this module?
Hi, yes and No. No because not all Arduino has Digital to Analog (DAC), Yes, get a board that has DAC and you may build extra circuit to make it work. not all converters can be connected to Microcontrollers such as Arduino.
@@robojax thanks for the reply, i wonder if Attiny85 as i read have 8 bit DAC output. Will it possible?
Can i get 2A at 5V output with 3V input please ? In boost mode only I need as I have 3.7 V 18650 battery. Also please tell me the load you are using - I just use 5ohm two resistors in parallel.
it is very bad idea to charger battery with this a s this does not limit current. you should get a module with Constant Current or CC so you can set the limit and that way your battery will not get damaged. Good luck
I think you have totally misunderstood. I'm not looking to charge a battery in first place. I 'm trying to connect a load to this booster that draws 2A at 5Volts. Is this booster good for such application ?
I am sorry, then. I don't remember how much it can output. To get answer you have to watch it.
@@robojax i watched it - you go high all the time never go low- so it is simply not available to watch. do you know any booster chip that can boost from as low as 2v to 5 v please ?thank you
Shoulde he Grounds be connected. when used ina circuit
for any circuit to be completed and function, you need two wires. Positive + and Negative or GND. yes.
Can this be used to just boost a power drop back to 5V. I'm making a long LED run and would like to patch in something that will boost the power back up to the original voltage as it starts to drop.
first why power drop? if power drop is not due to weakness of sours. This booster uses the power. if the source can supply enough current, it will boost it.
Yes!! thanks mate. subscribed for this.
You are welcome. Thank you.
excellent video, need your support and response
1. 3.3 volt to 12v 1 amp. pass or fail?
2. 3.3 volt to 12v 0.6 amp. pass or fail?
please respond
Please watch the video. I made the video answer such questions.
i know this is a a year old video, but how about 3v to 12v at 0.32 A would it work ok?
Hi, in order to answer you question, I would have to watch it. If you watch and do not escape, you will get the answer.
Foarte util aparatul de masura cu afisaje Arduino..ce denumire poarta pe Aliexpres?
Link-urile pentru a-l achiziționa se află în descrierea de sub videoclip.
Thanks ..excellent rewiew .I want to use it with lion battery at rc glider plane .if input is between 2.8v-3.7v ,output is 5v. How much current is it handle stable .can I get 1.5 or 1.7 amper ?Thanks
You are welcome. I believe I give the answer in the video. If I want to answer your question, i would have to watch it the video. so you watch it. It is the power. P=IxV (I is current , v is voltage). So Output P = ) ( Input P -15% of input)
i replaced the100k 25 turn multi turn pot with a normal 100 normal 270
degree trimpot. the 25 trimpot is really stupid and you need a
screwdriver and there is no knob for it anywhere
I am looking for a electronic load like the one you have. Will you please tell me the model, web site and other info for me to order one. If you have recommendations for other units please let me know. Thank you.
www.amazon.ca/dp/B07B8ZWX2X
Bhayya good morning.
Can I connect MT3608 boost converter to output of TP4056 while it is charging an 18650 battery?
Please reply
Yes you can.
I got same modules from ALI however they deliver only max 400mA from input 3.5 to output 5V. The chip used on my modules is marked XT1208, I assume it is a fake or a chip with lower current capability, anybody knows about that model?
see the test I have done. I am not sure what was the current. Also if you input source can't supply more power, the output will never do that. for example if you want 5V 800mA the Output power Po=5(0.8)=4W then the input power Pi=4(1.15)=4.6W (1.15 is 15% losses). So when your 3.5V, I=P÷V=4.6÷3.5=1.31A, are you supplying (at least) 1.31A to the module? Good luck.
Does it also boost the current?
It outputs the power Power = Current x Voltage. either reduces the voltage and give higher current or reduces the current and give higher voltage.
What's the name for testing device with fan and screen?
Electronic load and here is my video on that ua-cam.com/video/-kI7OtTHd18/v-deo.html
how to get i mean which module to use for 2.8v dc - 4.2v dc to 3.3volt constant output
I made this video to answer such questions. Just set the output to 3.3V and apply your voltage at input. That is it. I showed in the video that if you change the input voltage, the output does not change. Please watch again and do not escape.
@@robojax thanks for your answer sir,
but as per datasheet of mt3608 it output from 5volt and above. I am really confused.
I want to power esp32 at 3.3volt and make use of lithium polymer battery (2.8volt min max 4.2volt)5000mah.
If so as you say are you sure that mt3608 will give 3.3v constant outout from 2.8-4.2v input. If you give me green flag i will buy the module then . tight on budget i need to buy five modules . please help
sorry I misread your question. This will never reduce the voltage lower than the input. So if you want to get always 3.3V, then you need to use buck-boost converter which does that. it will give you 3.3V with 2.8V and 4.2V. Or use two module, first use this to get output like 10V, then use 3.3V regulator to get 3.3V from the 10V. This way you will always have 3.3V.
@@robojax
If I use booster to generate 10v and then again convert to 3.3volt my power losses increases.
I found one module which takes input 2.5 v - 12volt DC and output to 3.3 volt constant.
If we input 5volt and out 9volt
What will be maximum current?
I believe that is exactly why I made the video to answer these types of questions. so please watch and come to conclusion.
can you try showing us the lowest voltage input it can support?
That is what I have done I believe
Your video is very helpful.... thank you very much......
You are most welcome
Hello, Can use 3 of these these things in parallel to get a higher amp output (about 2a) at 12v? Could I connect the output wires from 3 modules? Thank you
theoretically yes. But practically very hard. it would be very hard to set EXACT voltage and current. If there is slight difference, then one module will act as source and the other as load and that would be very bad and they might overheat quickly. Get this item instead ua-cam.com/video/EJ0-T4uXjAY/v-deo.html
@@robojax thank you
B-E-A-U-tiful video
can i use this for my speaker project it draws 5v 2a and the power supply for the booster is 3.7v battery 4600 mah(fully charged it goes to 4.2)
waiting for your reply
😊
I forgot what was the maximum current that this module can handle but if it can handle. 2A then yes
Sir can I give input 9v 2amp or 5v 2amp and keep constant output as 12v will this work or would impact later.
Please watch . This what I made the video for. I have demonstrated many voltage and current.
Does this converter work backwards or if applied 27 volts on output will it generate 3 v on input?
No it doesn't. That type of converter is called Step Down or Buck converter. This is just boost converter.
hi! can this boost converter MT3608 read 0.1VDC?
Hey Robo, Can i use it at 5v 2A to 9v 2A im planning to use it to power my guitar pedal board with 5 pedals 600mah each.
No you can not. The power you are providing is 5V and 2A, 5x2=10W, and you are expecting to 9V and 2A which is 9x2=18W.
You can get 10W if efficiency is 100%. In this case you will get less than 10W.
Where can I get those two digital voltage reading displays
Search for "LED voltmeter" on eBay or AliExpress you will see them. here is search result from eBay www.ebay.com/sch/i.html?&_nkw=LED+voltmeter
very useful video. Thanks mate
you are welcome.
why 5V 2A = 10 W is failing, however, 24V 1A is working
because the 2A current is the problem. power is not a problem with this converter.
Can wr adjust current in buck converter?
no. if I was possible I would have shown it.
Thank you for the video. Can this be used on 4 solar cells total 2V to boost to 12v for charging car battery?
you did not mention the voltage from solar, but his doesn't have current control if you are charging lithium battery , the battery get damaged if voltage or current exceeds the limit.
@@robojax Thanks for your help! Ok to be more clear i have 4 solar cells, each is 0.5v and I plan to put them in series so I get a total of 2v. Then I plan to use this boost converter to make it 12v, and connect that to a 12v solar controller so that it can charge a 12v batter connected to the solar controller. Will that work, can you please tell me?
I don't remember the minimum voltage this module needs so watch it. if it is within equal or greater than minimum input voltage of the module, then yes. Keep in mind that the total power is that matters. for example if you have 2V and 12A P=2x12=24W so you input 2 watts. and this module can't add anything into power or watt. you may get 12V and 2 because 2x12=24W. this is ideal. converts have 10 to 15% losses. keep that in mind.
@@robojax Ok. Thanks for the detailed explanation! I really appreciate it very much! :)
Thanks for review, and very detail testing, Im planning a project,
Power an Amplifier from 2x USB ports, will this work ???
Amp = TPA3110 type, with 2x 10watt 4ohm Speakers. Trying to power this thing from 2x laptop USB ports with this boost converter (5v to 12V), already tested my usb ports, both ports can handle 5V @ 1.5A = 7.5W each = 15W for both USB ports (possibility more if i change to better shorter cables)
Planing to connect the 2X USB ports in parallel into the boost converter? If i get minimum 15W output that should be enough to power my amp/speaker in medium volume.
I have read this 3 to 10 times and every time I come across it under "no answered" comments. Just calculate the power for your amplifier. For this module you can get the power form my video.
Hey dude. I've just been tatting about on a similar project. You can power a 10w (sound level) battery powered amplifier (Kustom KGBAT10) via a 2.1mm Jacked 5v to 12v step-up transformer. Works well. Bear in mind sound wattage is different to power wattage. I'm gonna stick a multimeter in the circuit to measure current and see what the load in real-terms is. I used an Imuto 20a/h powerbank.
Hope you could possibly help. I was looking at these but after watching your video I don't think these work for me. I need to boost 5v-9v but I'll be varying the input voltage between 2-5v and I need the output voltage to move in relation to the input voltage. Is there a similar product that will do this for me? Thank you in advance
What you are looking for is called amplifier. This is regulator and keeps the output fixed regardless of input voltage. Amplifier will have some gain factor for example x3 or x100 or x2.5 and whatever the input is, it will multiply it by the fact as longs as it is within the limit of the device.
Robojax Is there an amplifier you would recommend. I basically need it so expression pedal that puts out 0-5v but I need it to put out 0-9or10v
Robojax not sure if I'm completely wrong but could I just use a standard 10w 8ohm speaker amplifier or would I need something more specific to accept the 5v coming in?
Speaker amplifier is not suitable as the input and output are non linear, meaning the output doesn't follow the input in a straight line. it is more curved and you will not get desired result.
How ever it is possible to convert or make one of these modules to your application using arduino. But you would try different module and find the right one. Using Arduino you will read the pedal voltage, and correctly send signal to the potentiometer point of the voltage regulator and will act as if you rotate the potentiometer and the output voltage is changed.
Robojax thank you :)
GREAT VIDEO. ¿can we use it for charging LI-ION batteries? thank you
No you can't because it doesn't have Constant Current (CC) .
@@robojax ¿only AC? OMG. Thankyou
@@LuisFSilva-wl6yu No, constant current isn't DC
Sir i have a question
What if i put 5v 20amp
Convert to 12v 1amp
It can be?
Or it will burn? Because of high amphere input?
Thanks sir
see my replay to other comment.
now this is what i call a test, well done! So if i have a variable 2-4V@60-400mA imput, can this board hold a Voltage of 6V or will it change if the imput Voltage is unstable?
at 01:14 (click to watch) I have shown that 2V is at the very edge where the module will not work. At 03:00 I have explained that the output is stable even if you change the input.
Thanks, just got a 5Pack from Ebay, my son will have a lot of fun building toys and solar builds this summer
oh, and you may like the "MCP73871 Power Boost USB 5V" Board, The black one, it can Charge and supply power to the applikation at the same time and so on, maybe you get one to test it?
Can I charge a 3.7v battery to 4.2v with this module?
I made this video to answer all those questions. Please watch without escaping, I am sure you will find the answer.
Where I can get the electronic load, which you use?
Like most Chinese products, it has no model number. It is called 150W electronic load and I just added a search link to eBay where you can click and find it.
sir, can this module convert 3.7v to 5v?
Absolutely it can.
When you load the ampere reduce s
you could edit the same comment and made them all one.
Nice bhoster converter
Can this work as a step down converter
No.
Can we step up 5v to 24v without overheating the module
You can. Over heat happens when you increase the load current.