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.
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)
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.
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.
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...
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
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.
I have used this same converter to step up the battery output of my 6 volt motorcycle, so I can use a 12 volt led rear light, because I have more choice of bulbs in 12 volts.
I have sow how much current this can handle. so for your bulb, either check the current rating (ampere) or if you know the power for example 12W. then I=P÷V, I is current, I=12÷12=1A. make sure the current of the bulb is not higher than this module. Please replay here if you used it and it worked. Good luck
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
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.
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.
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 ?
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.
I had purchased five of these circuits. Hoping to convert 12 volts to 18 volts. With no load, I connected the input to a 12 volt battery observing correct polarity. Each one immediately snapped and smoked and did not function. Is there something I am not aware of about connecting these to a 12 volt battery?
This is what happend to me with other boost converter. Apparently for all boost converter, we should have some kind of load otherwise the voltage continuously increase and it burns when the voltage reaches above the limit.
I've ordered this module and is yet to be delivered. Thank you for reporting. I guess the trimpot is the culprit here. It might be at its lowest output setting.. maybe for 5v or even 0v... and you were connecting it to 12v source. The input voltage has to be lesser than the output voltage for a DC boost module.. Can't be vice versa! Next time, try turning the trimpot screw anti-clockwise as much as you can before connecting to the battery. To be extra safe, try connecting it to a 3v coin battery (maybe CR2032) and read the output voltage before connecting it to a powerful battery. I'm fairly sure a coin battery doesn't have enough juice to kill this module.
@@ansk thank you for that information. I had purchased some more of these and this time attach them to a variable power supply starting at zero. I slowly increase the voltage monitoring the output with a slight load. I was able to adjust the output and raise the input voltage to the 12 volts I wanted to use.
Thanks for the reply. :) Took your advice and used a DC voltmeter (about 20mAH load) instead of a multimeter to read output voltage. Source were 2xAA used batteries with total voltage of 2.7v. The maximum output voltage I could get was only 26.9v! Maybe my module needs 3v min input for the rated 28v max output?! Anyways! My requirement is to power a 12v 10w (833mAH) LED from 2xAA NiMH 1.2v 2600mAH batteries. I hope the module does not heat up much.
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
Got one at current for a constant supply, issue is when i run two lines the chip even though I have back neg gates to stable and can seem good it then hits a short and throws the curcit stability yet on the other single lines is all ok on operating and is not above 250ma general current there not a bad unit for the cost used a lot off them and i hope to fix this shortly to finish a safety function curcit blown 5 now every time i fix part off the issue it comes back got the chip transistor sheet had a RF chip once put a npn that should have worked but blow all the line on the 4 pin selection same type but on for a slightly different use fine??😕on top did you know led can be used to stabilize function that would generally trip a 555 set of other had one that had 2 led for a on check on relay though save the juice the hole curcit went spastic you know that thor stuff in light??????.
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 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 have done the test and given you all possible scenarios. To answer I have to watch the video. Then you watch the video and I am sure you will find answer.
If i put at the back of this board a dissipator + thermal pad + fan i can get more current? Or at least a close fan. You had to isolate the air from the fan, because it was interfering.
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.
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?
No has comentado que tiene un consumo interno. Yo lo uso en un Receptor de RC para subir de 4,2 a 6V .Es una pila de LI 1906 y si lo dejo sin usar el voltaje de la bateria con 1 mes cae a 4.00V en lugar de mantener los 4,2V ....Saludos
Sí tienes razón, no lo mencioné porque es muy mínimo. La regla es que pones el interruptor entre la fuente de alimentación y la batería y la apagas cuando no la uses. Además, UN mes es mucho tiempo y, dependiendo de la calidad de la batería, también pueden perder carga. Gracias por el comentario. Saludos desde Canadá
Isn't this all about watts? It looks like at low voltages, you get only about 3 watts of power, and at higher voltages you can get up to 6 watts output? .........Output voltage MINUS input voltage TIMES output amps, right? VOUT - VIN X Amps Out = Power Watts.
it is all about Power with the unit of WATT. So this module can never add to the Power. So output Power is always less than input. We always have some losses.
Who else applied more than 6v to these out of the packet and popped them? Apparently there is a design fault as the Vref pin can't handle more than 6v and the modules are supplied set on minimum which applies the full voltage to this pin. To avoid this issue apply a maximum of 5v then setup the voltage you want (turn the pot ANTICLOCKWISE).
I mentioned in the video that you have to turn it 10 to 15 times before you see any changes. If that doesn't happen after few tries, then the module is bad.
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.
Can't power my 12V 1.05A fan with it properly. From 5V source. When i increase the current limit, around 1.58A it starts to show voltage limit, then current limit on the bench psu, and the fan spins down a little, then back up again, and then down, it repeats. Measured the output, it was around 7.6V instead of 12V.
@@robojax I mean, if i set the psu to not limit the current, and set the voltage to 5V on it, shouldn't the boost converter just draw enought current to power a 12V fan that i'm using with? Or i'm totally getting this wrong.
@@robojax It is working with a lower current fan (0.3A), but i needed the bigger one, for a fume extractor project. Guess i will need to find another solution, to drive that 1.05A fan, gonna get some laptop psu or something. Anyways, thanks for the help and reply, and thank you for your videos.
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 .😎😎
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)
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.
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.
Amazing question. You make me open the video (I don't see the video on this screen as I see all comments from all videos on the same screen) and it shows clearly that I have demonstrated the following voltages . so please watch and get the answer. 3.3V to 5V 2A 3.3V to 5V 1A 9V to 12V 2 9V to 12V 1A 12V to 24V 2A 12V to 24V 1A
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 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.
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?
Shorts eventually have on a 8.4 v ion battery high current when she runs normal single operating all ok, but when i use a 2 operating line seems ok but just not right starts to get worse from there and other functions stop running eventually shorts got it running at current but after the first crash anda few on the original i dont want to blow it till i get the issue and a fix hopefully soon😆.
@@robojax pin 4 mosfet gate multiple curcit and above 20v even though not above current rate or transistor types got it on a dule line on single operating fine but a npn input?? that should be a pnp reverse input off the 2 line input selection through the transistor and tweky as all smoke included blow 5 and one transistor must have gone full drop on pin 4 if i got the correct notes?? Have done that to a HT -12D on the 4 gates for output or read was the correct type npn but blow the 4 lines out one after another changed it for a npn next one down and has worked fine every time?? I think one was a motor type the other curcit but did a lot of damage to the chip must have mirrored and short city. Got a curcit and if the director is not in a relay just will not work but it has 3 operation going that are all fine with other relays the relay on one curcit unit will just not work????😮 Or a volt regulations that if you don't forward the out voltage to the next on the 4 units the 5v regulations has no power captain???😮WTF! Been a good education have one that if you don't have a led the hole lot gose tweky it's used to stabilize the curcit engineering stuff! That's a new one!!! Was thinking no use just take it out right! !! well thor your in for a education.👍went nuts and hole reprint curcit 😡'Ouch.
Is this constant current? I wanted to power an LED at 19V and 145mA from 3.7V Li-ion. (tp4056) The constant current 145mA is a requirement, so I wanted to know if this is a good choice.
CZcams 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.
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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.
pm me can you to install do sola paint of charger.
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
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 :)
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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.
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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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.
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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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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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.
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7:55 this what i'm looking for, thanks
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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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
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The magic word is POWER!
Looks like 3W is the limit without overheating. So (Vout-Vin)*Iout
yes. it is .
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
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
Many thanks Robojax. Very useful video. :)
you are welcome.
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.
In order to compare MT3608 outputs comprising voltage (V) and current, it is a good video. Thank you...
You are welcome
Will be using it on a 5v 2a battery pack
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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B-E-A-U-tiful video
I prefer the XL6009 boost module the MT 3608 burn out easily
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.
Thanks Greate video :) Its boost converter voltage up current down. MT3608 got 4A limit n-mosfet.
You are welcome. yes. Power is the important factor which can never increase. You will always have some losses like 10 to 15%.
I have used this same converter to step up the battery output of my 6 volt motorcycle, so I can use a 12 volt led rear light, because I have more choice of bulbs in 12 volts.
I have sow how much current this can handle. so for your bulb, either check the current rating (ampere) or if you know the power for example 12W. then I=P÷V, I is current, I=12÷12=1A. make sure the current of the bulb is not higher than this module. Please replay here if you used it and it worked. Good luck
Thanks, now I at least know I can expect this thing to work 5~8,4 V 1,2 A Great video
Sometimes you need a higher wattage of input so that you see what you want to see. Try 12v, 9v and 3.7v battery, they give higher ampere.
thanks for sharing
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
Yes!! thanks mate. subscribed for this.
You are welcome. Thank you.
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.
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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Thanks for this, I was facing Voltage drop problem.
You are welcome.
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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 czcams.com/users/wattHour
Thanx Bro 4 Gr8 Video Upload👍💓⚘👍
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.
👌👌👌👍 thanks for this
You are welcome.
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, 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.
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Great vedio 👍
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.
Excellent review :)
Thank you.
I had purchased five of these circuits. Hoping to convert 12 volts to 18 volts. With no load, I connected the input to a 12 volt battery observing correct polarity. Each one immediately snapped and smoked and did not function. Is there something I am not aware of about connecting these to a 12 volt battery?
This is what happend to me with other boost converter. Apparently for all boost converter, we should have some kind of load otherwise the voltage continuously increase and it burns when the voltage reaches above the limit.
I've ordered this module and is yet to be delivered. Thank you for reporting.
I guess the trimpot is the culprit here. It might be at its lowest output setting.. maybe for 5v or even 0v... and you were connecting it to 12v source.
The input voltage has to be lesser than the output voltage for a DC boost module.. Can't be vice versa!
Next time, try turning the trimpot screw anti-clockwise as much as you can before connecting to the battery.
To be extra safe, try connecting it to a 3v coin battery (maybe CR2032) and read the output voltage before connecting it to a powerful battery. I'm fairly sure a coin battery doesn't have enough juice to kill this module.
@@ansk thank you for that information. I had purchased some more of these and this time attach them to a variable power supply starting at zero. I slowly increase the voltage monitoring the output with a slight load. I was able to adjust the output and raise the input voltage to the 12 volts I wanted to use.
Thanks for the reply. :)
Took your advice and used a DC voltmeter (about 20mAH load) instead of a multimeter to read output voltage. Source were 2xAA used batteries with total voltage of 2.7v. The maximum output voltage I could get was only 26.9v! Maybe my module needs 3v min input for the rated 28v max output?!
Anyways! My requirement is to power a 12v 10w (833mAH) LED from 2xAA NiMH 1.2v 2600mAH batteries.
I hope the module does not heat up much.
very useful video. Thanks mate
you are welcome.
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
I have tested and presented that. Output does not change as the input changes.
It's changes dear I am gonna make a video regarding same , this module is good only for LED bulb I guess not even LED bulbs I hope u got my point
Thanks I confused on my project how to get more voltage from my dc-dc booster but realized there was potentiomter on there.
You are welcome.
Got one at current for a constant supply, issue is when i run two lines the chip even though I have back neg gates to stable and can seem good it then hits a short and throws the curcit stability yet on the other single lines is all ok on operating and is not above 250ma general current there not a bad unit for the cost used a lot off them and i hope to fix this shortly to finish a safety function curcit blown 5 now every time i fix part off the issue it comes back got the chip transistor sheet had a RF chip once put a npn that should have worked but blow all the line on the 4 pin selection same type but on for a slightly different use fine??😕on top did you know led can be used to stabilize function that would generally trip a 555 set of other had one that had 2 led for a on check on relay though save the juice the hole curcit went spastic you know that thor stuff in light??????.
Does this amplify an automotive engine control module pwm 5v signal output to 12v dc... need it to drive a 12vdc solenoid 5.4 watts?
@@marcosvega3464 did it work?
@@thenande have not tested one
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.
Your video is very helpful.... thank you very much......
You are most welcome
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.
Nice video. Any boost module which can boost 3v to 12v minimum and can handle current of 3A without any heat sink.
Nice bhoster converter
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
Input Voltage: 12V
Input Current: 1Amp
Required Output Voltage: 14V
Will it work???
I have done the test and given you all possible scenarios. To answer I have to watch the video. Then you watch the video and I am sure you will find answer.
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
So basically, with a decent heatsink/cooling, it could work even better?
Yes
If i put at the back of this board a dissipator + thermal pad + fan i can get more current?
Or at least a close fan.
You had to isolate the air from the fan, because it was interfering.
maximum rated current is 2A so you won't get more than 2a.
yes I should've isolated. I did notice is and did that in the upcoming video.s Thank you.
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.
Sorry but i don’t understand... what is the max power that it can work?
I don't know . I have to watch it to tell you. So watch and see what is the maximum current and voltage I got VxI =Power
What will happen if you increase the input voltage? Let's say you set the voltage to 12v and you increase the input up to 12.6v or higher.
I believe I have shown it. The output will not change if you change input
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?
Xl6009 or mt3608 which one is better?
to different thing. I am not sure.
thanks
thanks for this Info.
You are welcome.
The converter is not rated for 3A, but for up to 800mA, and a peak of 3A for a short time only.
Yes thanks. On eBay and AliExpress they sell it as such. We have to show them it is not working.
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.
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.
No has comentado que tiene un consumo interno. Yo lo uso en un Receptor de RC para subir de 4,2 a 6V .Es una pila de LI 1906 y si lo dejo sin usar el voltaje de la bateria con 1 mes cae a 4.00V en lugar de mantener los 4,2V ....Saludos
Sí tienes razón, no lo mencioné porque es muy mínimo. La regla es que pones el interruptor entre la fuente de alimentación y la batería y la apagas cuando no la uses. Además, UN mes es mucho tiempo y, dependiendo de la calidad de la batería, también pueden perder carga. Gracias por el comentario. Saludos desde Canadá
Eso era lo mismo que yo iba decir,tienes que desconestarlo en la entrada y problema resuelto.
It can convert i/p 5V 0.2A to O/P 12V 1A
Isn't this all about watts? It looks like at low voltages, you get only about 3 watts of power, and at higher voltages you can get up to 6 watts output? .........Output voltage MINUS input voltage TIMES output amps, right? VOUT - VIN X Amps Out = Power Watts.
it is all about Power with the unit of WATT. So this module can never add to the Power. So output Power is always less than input. We always have some losses.
Who else applied more than 6v to these out of the packet and popped them? Apparently there is a design fault as the Vref pin can't handle more than 6v and the modules are supplied set on minimum which applies the full voltage to this pin. To avoid this issue apply a maximum of 5v then setup the voltage you want (turn the pot ANTICLOCKWISE).
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.
suggest me 2A output bored not getting heat up
when i connect 5v from a usb output and transform it to 12v it makes a weird clicking noise. Have you any idea what cause it?
There might be vibration from the largest piece which is inductor or coil.
I have an battery that puts out 5v with this thing it only goes power down and not higher like 12v what should i do?
I mentioned in the video that you have to turn it 10 to 15 times before you see any changes. If that doesn't happen after few tries, then the module is bad.
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.
Hello sir, can we step up 5V to 12V or above with 2A ?
Not with that board
What's the name for testing device with fan and screen?
Electronic load and here is my video on that czcams.com/video/-kI7OtTHd18/video.html
Can this be used on headlight led bulbs which are rated 9v to 36v? Can it handle a 12v converted to say 15v continuous for those led bulbs?
What it can handle has been explained in the video. Please watch and do not escape. I don't the answer, I have to watch to answer it. So you watch it.
Got one from ali express. Doesn't work. Input equals output. So sad
I mentioned that you have to rotate the potentiometer about 15 times until you see change in output. Try it.
Robojax I've tried many times already. I got a data sheet. Will fault find and let you know. Cheers
I just buyed 5 on Ebay, ALL gives an output of 4.2V max. at 3.7V input as soon as it draws power. With no load i can go up to 28V.... WTF. :(
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.
can you try showing us the lowest voltage input it can support?
That is what I have done I believe
Can't power my 12V 1.05A fan with it properly. From 5V source. When i increase the current limit, around 1.58A it starts to show voltage limit, then current limit on the bench psu, and the fan spins down a little, then back up again, and then down, it repeats. Measured the output, it was around 7.6V instead of 12V.
Your total output power can be more than the input power. Is the input power enough?
@@robojax I mean, if i set the psu to not limit the current, and set the voltage to 5V on it, shouldn't the boost converter just draw enought current to power a 12V fan that i'm using with? Or i'm totally getting this wrong.
It should get 12v and the output current is what I have tested it as I don’t remember. Yes it should
@@robojax It is working with a lower current fan (0.3A), but i needed the bigger one, for a fume extractor project. Guess i will need to find another solution, to drive that 1.05A fan, gonna get some laptop psu or something. Anyways, thanks for the help and reply, and thank you for your videos.
what happened if input is 12v and the output is set to 12v?
it means the output is set to lower than 12V and the module does not reduce it. Reduce the input to 5V and you can get 12V or lower up to 6V.
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.
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 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
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
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)
hi! can this boost converter MT3608 read 0.1VDC?
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.
But you can add mosfet on the chips output then it will not heat up that much and will deliver more curent(sorry about my english)
Yes you can change it. But my review is about this module itself without any change.
@@robojax i know but i just say how you can improve it(my english sucks)
Just add heat sink.
@@robojax if you add mosfet then you can get more curent out of it
not with this module.
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.
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.
What if I set output at 12v and provide input as 24v
What will be the output in this condition
Amazing question. You make me open the video (I don't see the video on this screen as I see all comments from all videos on the same screen) and it shows clearly that I have demonstrated the following voltages . so please watch and get the answer.
3.3V to 5V 2A
3.3V to 5V 1A
9V to 12V 2
9V to 12V 1A
12V to 24V 2A
12V to 24V 1A
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
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.
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.
Shorts eventually have on a 8.4 v ion battery high current when she runs normal single operating all ok, but when i use a 2 operating line seems ok but just not right starts to get worse from there and other functions stop running eventually shorts got it running at current but after the first crash anda few on the original i dont want to blow it till i get the issue and a fix hopefully soon😆.
this is based on the chip. so all of them should be okay. Good luck.
@@robojax pin 4 mosfet gate multiple curcit and above 20v even though not above current rate or transistor types got it on a dule line on single operating fine but a npn input?? that should be a pnp reverse input off the 2 line input selection through the transistor and tweky as all smoke included blow 5 and one transistor must have gone full drop on pin 4 if i got the correct notes?? Have done that to a HT -12D on the 4 gates for output or read was the correct type npn but blow the 4 lines out one after another changed it for a npn next one down and has worked fine every time?? I think one was a motor type the other curcit but did a lot of damage to the chip must have mirrored and short city. Got a curcit and if the director is not in a relay just will not work but it has 3 operation going that are all fine with other relays the relay on one curcit unit will just not work????😮 Or a volt regulations that if you don't forward the out voltage to the next on the 4 units the 5v regulations has no power captain???😮WTF! Been a good education have one that if you don't have a led the hole lot gose tweky it's used to stabilize the curcit engineering stuff! That's a new one!!! Was thinking no use just take it out right! !! well thor your in for a education.👍went nuts and hole reprint curcit 😡'Ouch.
Is this constant current? I wanted to power an LED at 19V and 145mA from 3.7V Li-ion. (tp4056)
The constant current 145mA is a requirement, so I wanted to know if this is a good choice.
No it is not. Module with constant current will have separate Potentiometer for current.
@@robojax Thank you!
can it also work as a buck converter? like isupply 12volts and output is 5volts
NO. for that we have buck-boost-converter. this is just boot and output is always higher than input.