Battery Charger & Protection & Boost 5V or 12V

  Рет қаралды 125,182

Electronoobs

Electronoobs

4 жыл бұрын

$2/5pcs 2Layer & $5/5pcs 4Layer PCBs: jlcpcb.com
🔥I always use a 3.7V battery charger module and then I add a boost converter to get the 5V for my Arduino and so on. I wanted to have everything on the same PCB so I've used the protection ICs, charging and boost ICs and like that I have all I want on the same PCB. Hope you like it.
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Tutorial page:electronoobs.com/eng_circuito...
Schematic: electronoobs.com/eng_circuito...
GERBERs(V1.0) free: electronoobs.com/eng_circuito...
Part list: electronoobs.com/eng_circuito...
Buy New Version(V2.1): electronoobs.io/shop/index.ph...
Fixed 5V or 12V output (V3.0): electronoobs.io/shop/index.ph...
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#PCB
#charger
#boost

Пікірлер: 353
@ELECTRONOOBS
@ELECTRONOOBS 4 жыл бұрын
Sign up at ELECTRONOOBS.io: electronoobs.io/ Follow me on FACEBOOK for more: facebook.com/Electronoobs help me on Patreon: www.patreon.com/ELECTRONOOBS
@adityapetkar3062
@adityapetkar3062 4 жыл бұрын
make a video on diy oscilloscope
@AnandKumar-ym9yw
@AnandKumar-ym9yw 4 жыл бұрын
Sir can you describe the design of digital volume controller and can we make a digital variable resistor. 🤔🤔
@audriusradziunas5451
@audriusradziunas5451 4 жыл бұрын
I know you did esc videos and have better things to do but could you make a 10s vesc for two bldc motors? I can't find anything that is in my budget range.
@arduinozone6034
@arduinozone6034 4 жыл бұрын
My first youtube video. It is about arduino LED Light Patterns kzfaq.info/get/bejne/fp2ojcJ8y73cp40.html
@bokybaza8758
@bokybaza8758 3 жыл бұрын
Can this module at same time recharge battery and load something, somewere read that tp4056 need pmosfet to do that?
@IscleGaming
@IscleGaming 4 жыл бұрын
12:04 To fix this issue just connect the 20K resistor permanently to the circuit. Then, just calculate which resistor value you need to put in parallel to that to make 7K, and just make the switch connect it in parallel. That way, you can either have 20K or 20K in parallel with whatever is connected to the switch. This means you'll never have a floating pin.
@ELECTRONOOBS
@ELECTRONOOBS 4 жыл бұрын
Thank you so much for the tip
@iuhere
@iuhere 4 жыл бұрын
@@ELECTRONOOBS is this implemented in your version 2 of the gerber file or do we need to edit it?
@Aykaramber
@Aykaramber 4 жыл бұрын
A different solution would be switching the resistor to ground. In that way the ic will stop working while floating and turn on when the switch is closed again. Second feature is a damaged switch shut the ic down.
@IscleGaming
@IscleGaming 4 жыл бұрын
@@Aykaramber Switching the resistor to ground will mean that you could have the full output voltage (12v) on the feedback input, which may or may not be rated for it. So the best solution is to follow the datasheet and just connect a parallel resistor.
@davidmcclare443
@davidmcclare443 4 жыл бұрын
hi the parallel resistor is approx 12k
@AngeEinstein
@AngeEinstein 4 жыл бұрын
Your channel really has become a wonderful source for electronics projects and building instructions for "finished parts" like this one. Thank you!
@epleace
@epleace 3 жыл бұрын
Perfect - just what I've been looking for. Thanks for your work and clear explanation.
@PerryStevPT
@PerryStevPT 4 жыл бұрын
I made a similar PCB design for my final project degree a month ago. But the boost converter was fixed at 12v. Good to know it works
@kuansterful
@kuansterful 4 жыл бұрын
Very helpful! I like how this video is released just at perfect time as I'm trying to design & make a lipo battery charger and boost converter for my project. This helps speed things a lot in that regard.
@anwin85alon
@anwin85alon Ай бұрын
Pm me can you to install do sola paint of charger.
@kyleniedermeier6651
@kyleniedermeier6651 4 жыл бұрын
Great work! What a great way to make sure your prototype is working!
@glydrfreak
@glydrfreak 4 жыл бұрын
Great timing. This schematic is exactly what I need to build for a project I’m working on!
@anwin85alon
@anwin85alon Ай бұрын
Pm me can you to install do sola paint of charger.
@TinkerManMick
@TinkerManMick 4 жыл бұрын
Nice video!! Your channel is growing awesome and your videos are so good now!
@makermatrix9815
@makermatrix9815 4 жыл бұрын
FANTASTIC. I've wished for such a circuit many times, to incorporate into my other PCB designs. I was too intimidated to try making my own so instead end up making headers on my PCB and piggybacking multiple modules. Since you did such an amazing job explaining this, maybe I can try to replicate it next time :-)
@ryanworks35509
@ryanworks35509 3 жыл бұрын
This was a really good video. Thanks for doing what you do! Still learning here and there is a lot of content to soak up here.
@mav29
@mav29 2 жыл бұрын
so much work delivered in 15mins, great content. thanks a lot
@anwin85alon
@anwin85alon Ай бұрын
Pm me can you to install do sola paint of charger.
@chiparooo
@chiparooo 4 жыл бұрын
Nice integration of the 2 boards! Good job on testing too. Thanks for sharing!
@anwin85alon
@anwin85alon Ай бұрын
Pm me can you to install do sola paint of charger.
@PhillipTorrickeBarton
@PhillipTorrickeBarton 4 жыл бұрын
This is a great little power management board. Great work!!!
@anwin85alon
@anwin85alon Ай бұрын
Pm me can you to install do sola paint of charger.
@MirceaPrunaru
@MirceaPrunaru 4 жыл бұрын
I was looking for something like this for about 2 years =)) ,glad I subscribed to your channel.
@anwin85alon
@anwin85alon Ай бұрын
Pm me can you to install do sola paint of charger.
@jawadhassan4066
@jawadhassan4066 4 жыл бұрын
Its awesome. Love your projects.
@rickyaryadi8422
@rickyaryadi8422 4 жыл бұрын
Awesom my friends for your all projects, from indonesia 🙏🏻 thaksfull
@anwin85alon
@anwin85alon Ай бұрын
Pm me can you to install do sola paint of charger.
@prathambumb5593
@prathambumb5593 4 жыл бұрын
Excellent Work 👍
@TheJay6621
@TheJay6621 4 жыл бұрын
I struggled a lot for my battery management part.. but I was newbie than.. This looks perfect all in one solution.. copying your gerbers for future use.. thank you..
@anwin85alon
@anwin85alon Ай бұрын
Pm me can you to install do sola paint of charger.
@ahmedragab3446
@ahmedragab3446 4 жыл бұрын
Nice project man, you did a great job with this module. BTW for the switching problem I don't know if someone has mentioned it or not but if you take a look into the Vout equation you can see that when you disconnect the resistor R1 for a very short time this makes its value approaching infinity and according to the equation the boost converter will try to reach a very large voltage value that will destroy the ic I think the solution is to make R1 constant and change R2 according to the desired output voltage, this will make the switching moment voltage equals to Vref
@tarcisiobatista5595
@tarcisiobatista5595 4 жыл бұрын
Thanks bro you r awesome. Real great content, learned a lot. Hope you do more projects like this.
@anwin85alon
@anwin85alon Ай бұрын
Pm me can you to install do sola paint of charger.
@PhG1961
@PhG1961 4 жыл бұрын
Nice video ! Excellent work.
@ramymagdy3482
@ramymagdy3482 2 жыл бұрын
Great content, and a nice detailed explanation of the design process 👏. May suggest in theory that the booster short circuit could be fixed by a mosfet/pjt of the same rated current, as such, if the 5-12V switch at bounce state, the gate(mosfet) or base won't be supplied thus short circuit; you can ensure the drainage by a load resistance. Another way can be a capacitor put across the booster output so it doesn't lose current instantaneously at the switching action, however, this may be not the safest option to turn off in safe fail mode.
@DaveHolowiski
@DaveHolowiski Жыл бұрын
I ordered some PCBs of the newer version. The components just came in. I can't believe you hand soldered this, the components are way smaller than they look in the video!
@anwin85alon
@anwin85alon Ай бұрын
Pm me can you to install do sola paint of charger
@GeraMF
@GeraMF 4 жыл бұрын
felicidades es un gran producto, vale cada centavo.
@technicalsaarathi8110
@technicalsaarathi8110 4 жыл бұрын
your project are always awesome, love from Nepal!
@anwin85alon
@anwin85alon Ай бұрын
Pm me can you to install do sola paint of charger.
@parsairani7983
@parsairani7983 Жыл бұрын
that's awesome man...keep it up😍👌👌
@jiwagaming5276
@jiwagaming5276 3 жыл бұрын
For small project that need 5v power i will just use a small powerbank module that have protection. Like the 134N3P module that even smaller than the TP4056 but have 5v 1A boost, 4.2V overcharge, 3.0V overdischarge, and short circuit + over current protection
@ConsultingjoeOnline
@ConsultingjoeOnline 4 жыл бұрын
Awesome man. REQUEST: you should make a pcb tutorial with easy eda. Like ground planes, etc. Best tips and tricks. Thank You!
@saliksheraz6236
@saliksheraz6236 4 жыл бұрын
Impressive work bro
@phyranios9091
@phyranios9091 4 жыл бұрын
My prayers have been answered!
@mohamedsulaiman7410
@mohamedsulaiman7410 4 жыл бұрын
Love ur commitment bro 💯👊👊👊
@Metroid1890
@Metroid1890 4 жыл бұрын
I've been working with a power bank circuit but didn't notice it had an auto-turn off function built-in 🤦‍♂️, this circuit solves that problem right away
@anwin85alon
@anwin85alon Ай бұрын
Pm me can you to install do sola paint of charger.
@hatemaiman6885
@hatemaiman6885 4 жыл бұрын
You are great My greetings from Egypt
@chrishuhn5065
@chrishuhn5065 4 жыл бұрын
Regarding the output voltage selector switch: Why not simply put the 7.5k resitor in series with a 12.5k resistor and use the switch to bridge (short circuit) the 12.5k?
@MagicSmoke11
@MagicSmoke11 4 жыл бұрын
Super Explanation..Thanks Bro
@ceeboneee5632
@ceeboneee5632 4 жыл бұрын
Nice circuit. I normally take the circuit out of a £1 powerbank for the 5v, protection and charging, but the 12v feature is nice.
@anwin85alon
@anwin85alon Ай бұрын
Pm me can you to install do sola paint of charger.
@papablopapapablo8123
@papablopapapablo8123 4 жыл бұрын
Muy bueno. Te propongo otro con las mismas salidas pero con entrada de placa solar de 12v que suelen llegar a 17-19 voltios pico.
@dominikworkshop6007
@dominikworkshop6007 4 жыл бұрын
Cool board, but i guess i have a better solution to your problem. I suggest connecting the 20k ohm resistor (R1) permanently to the voltage divider so you would have 12V output and connect another resistor through a switch in parallel to the 20k resistor to obtain 5 volts output. This way the boost IC will always have its feedback loop closed.
@bashaaksema94
@bashaaksema94 4 жыл бұрын
Yeah
@jagdeepsharma1772
@jagdeepsharma1772 4 жыл бұрын
can you tell me the voltage of capacitor and wattage of resistor
@dominikworkshop6007
@dominikworkshop6007 4 жыл бұрын
@@jagdeepsharma1772 which capacitor and resistor?
@MadHatter764
@MadHatter764 4 жыл бұрын
Makes sense to me...I am also wondering about the lack of a big 100 uF buffer capacitor on the boost input side to handle startup surge current when the boost section is switched on....or maybe the MT3608 has soft start capabilities ?
@madvelila
@madvelila 2 жыл бұрын
is there quided video about this procedure? Idont have knowledge about electronics, but I have done projects by following youtubevideos
@Nono-hk3is
@Nono-hk3is 4 жыл бұрын
Also, be aware of the current rating on the surface mount switches. Good engineering design calls for at least 2x margin, i.e. if the battery can sustain ~500 mA the switch needs to handle *at least* 1000 mA. (This margin should be much higher than 2x if we were dealing with higher power.) One solution is to use an N-channel mosfet to switch ground back to the battery. Then attach the smd switch to the gate to turn the mosfet on and off. But when it comes to things like power supply, I don't like low-side switching as it leaves the load energized, so if it finds a ground it might turn itself on. So if you can find a p-channel mosfet that handles the required current and can be saturated at zero volts (rather than having to go negative) you can switch the high side of the battery instead. So look for a P-channel mosfet whose Vgs(th) is only about half of the voltage you want to switch. This increases the likelihood of the mosfet going into saturation.
@anwin85alon
@anwin85alon Ай бұрын
Pm me can you to install do sola paint of charger.
@electronic7979
@electronic7979 4 жыл бұрын
Nice circuit
@belalmohammed2265
@belalmohammed2265 4 жыл бұрын
nice work, I would've used a power management IC and a UC instead of all that, but I like how simple your design process is.
@deepakkumaryadav24
@deepakkumaryadav24 4 жыл бұрын
Which power management IC & UC specifically? please.
@simond5745
@simond5745 4 жыл бұрын
Very Good Job Man!!
@seanyong1123
@seanyong1123 4 жыл бұрын
Hey Electronoobs, loving your video and concept for a charger/boost converter. I've recently made my own usb charger boost circuit and found that another IC made by TP to be even more suitable. The TP5400 comes as an all in one IC that can handle charge, boost, protect, and has internal mosfets. Might be worth taking a look at that IC. However, the only downside is that the datasheet is in Chinese only.
@franmel4961
@franmel4961 4 жыл бұрын
excelente video! muy completo!!!
@tash213
@tash213 4 жыл бұрын
Awesome video😬
@FamilyKitynkaty
@FamilyKitynkaty 3 жыл бұрын
Hi, great video. I learn a lot from this. Thank you. What i am thinking right now is how charging state, full charge state, and battery fuel gauge also included so it can be monitored by arduino.
@keithking1985
@keithking1985 4 жыл бұрын
the pound land power banks have what you made already on them!! but making your own is far more gratifying, very cool video & they look class too...
@daumantasbackus7686
@daumantasbackus7686 4 жыл бұрын
The lipo battery yuo have connected, already has protection circuit built in (except short circuit) it has OVC OVD OVC protection in small PCB connected in between battery terminals!
@ruwankarunanayaka3417
@ruwankarunanayaka3417 4 жыл бұрын
Wow bro........thanks bro given this information....you are great bro......
@mundo_electronica
@mundo_electronica 4 жыл бұрын
Hi. It's a great idea, but I suggest two things to improve the circuit. First, use a FS312 instead of the DW01, because this chip have a 2.9V under voltage protection, instead of 2.5V, it's more safer for the Li-Po than the DW01. Second, use the switch to conmutate the R2 value, not the R1, in this configuration the FB pin always see the voltage of the output, and if the R2 value is floating, the voltage in the output will be 0.6V, the feedback reference voltage, and the IC is safe 👌🏻(Perdón si mi inglés no es muy bueno, pero prefiero comentar en inglés en tu canal de habla inglesa).
@daijoubu4529
@daijoubu4529 4 жыл бұрын
Yep ditch the DW01, even if it's dirt cheap, voltages are so wrong
@hogfanboy9443
@hogfanboy9443 4 жыл бұрын
Is there an under voltage protection chip for a 2S Battery. I have students making antweight combat bots and they use small 2s lipo, I made a small board that uses a ESP and motor driver to make a small brushed ESC and receiver, I would like to add under voltage protection to make sure the students don't run the batteries down too far. I was thinking of monitoring only the total voltage because the 2 pin JST of the battery is what I have plugged into the ESC
@drakevelazquez8728
@drakevelazquez8728 3 жыл бұрын
Newbie If I use the fs312 instead will the capacitors and resistors values have to be changed. Any tips appreciated
@PHLocalExtremeSports
@PHLocalExtremeSports 3 жыл бұрын
Yeah 2.6v is very low for a lithium chargeable battery, 4.2v full and 3.0v for empty battery (nominal 3.7v)
@alexiszriofrio8468
@alexiszriofrio8468 3 жыл бұрын
Tengo dos supercap de 2.4V crees que pueda hacer algo similar ? Carga, levantar el voltaje y proteger de cortos ?
@puspocempaka
@puspocempaka 2 жыл бұрын
Makasi bg sd berbagi ilmu
@IscleGaming
@IscleGaming 4 жыл бұрын
By the way, to make the board even smaller you could use a battery protection IC with integrated mosfet instead of the DW01. Check out this one: XB3303A. It's available in LCSC.
@haris1677
@haris1677 4 жыл бұрын
Love your work! it would have been great if you would have added both 5 and 12v available simultaneously
@techieelectro
@techieelectro 4 жыл бұрын
Awesome sir👍👍👍
@jukkapekkaylitalo
@jukkapekkaylitalo 3 жыл бұрын
So i made battery back 7s configuration. To be charger PD charger but it can only charge at 20V. My battery input output supports up to 30V charge. So i need to make boost converter that can turn my 20V to 30. Also disconnect it self from battery when battery is full. So that i can get max 30V out from the type c when i remove charger. It also needs to disconnect 30v from battery to type c, when ever charging is started.
@atinotevuelveaimportar5905
@atinotevuelveaimportar5905 4 жыл бұрын
Better than a switch I think a jumper that you can just solder will be more useful to select the 12V: then the freed space you may use it to include a M2 hole in the pcb for fixing ir in the project case.
@anwin85alon
@anwin85alon Ай бұрын
Pm me can you to install do sola paint of charger
@AmansLab
@AmansLab 4 жыл бұрын
Good effort
@technotroll-pro
@technotroll-pro 4 жыл бұрын
Good job 👍 Thanks
@minihero2862
@minihero2862 3 жыл бұрын
thank you
@obaidabohsas6448
@obaidabohsas6448 4 жыл бұрын
To solve your problem with boost ic, you can just add new two resistors in range 300k to 600k in Parallel to your old resistors and switch, so in normal operation the small value"old resistors" will take the controller and set the correct output, and when switch flipped the new resistors will kick in and set the output voltage to 5 voltage until switch flipped, after that the olde resistors will kick in and set the output voltage to 5V or 12V.
@sameerUNO10100
@sameerUNO10100 4 жыл бұрын
Banana looks cool
@leehewitt9559
@leehewitt9559 4 жыл бұрын
Excellent
@ketanmorajker
@ketanmorajker 4 жыл бұрын
Amazing 👌🏼
@poptartmcjelly7054
@poptartmcjelly7054 4 жыл бұрын
The booster IC blew because it had no voltage feedback and went overvoltage on the output. As you flick the switch the IC momentarily loses voltage feedback and thus thinks that the voltage is too low and during that time the voltage rises to a level where the IC burns out. So it's just a bad design on your part. :) To fix this you could have left R1 permanently connected and had the switch connect a 12.3 Ohm resistor in parallel, which would lower the total resistance to 7.5k. Or you could flip the thing around and place two resistors instead of R6 and one resistor instead of R8 and R1. This way the regulator would jump down to 2.5V during the time it takes for the switch to make contact. This would also be the ideal way to do this because it would mean that in the event that the switch failed your regulator would not go overvoltage and burn out everything on the circuit. Also your boost output capacitor should be placed as close as possible to the diode to minimize voltage ripple at higher current.
@avinashraj4102
@avinashraj4102 4 жыл бұрын
Great one
@user-dg1lf2nb4h
@user-dg1lf2nb4h 4 жыл бұрын
good work freind, hello from Kazakhstan ))
@manCaveSweden
@manCaveSweden 8 ай бұрын
Thanks for the great video! Can i also ask you to recommend a good book for beginners to get into electronics?
@fatmann66
@fatmann66 4 жыл бұрын
whats the total cost: if I was to order the V2 board 5 count assembled. it's hard to know the actual cost per board (fully assembled) without the required files ( before purchasing them) thanks
@b.w.oostdam8875
@b.w.oostdam8875 4 жыл бұрын
Super project! Very good and smart PCB. Would buy it as a kit. or if the price is right as a ready-made.
@akasickform
@akasickform 2 жыл бұрын
Great and thorough run through! I have a question: You are using a battery lower than 4.2V, does it make any difference what voltage battery is used? Eg. If I put a 4.2V or 3.7V lipo to charge? Is there something I need to change for this? By changing the inductor to a larger value would this mean that I can charge at a higher rate?
@MyOwntuahur
@MyOwntuahur 4 жыл бұрын
Your awesome bro.. waiting for the news Gerber file
@gabrielhenriquebuzzi1255
@gabrielhenriquebuzzi1255 4 жыл бұрын
Hello, I already had a problem using the DW01, he just couldn't keep the output off permanently. It restarted whenever the cut-off voltage increased, as the battery stabilized. It was necessary to trick it with 2 diodes in series for voltage drop and also an electrolytic capacitor to prevent reclosing. The shear stress of the FS312 seems more stable to me, test it if possible!
@tomeryeify
@tomeryeify 4 жыл бұрын
Very nice project! :) But why you didn't add the new version to the video?
@MrBobWareham
@MrBobWareham Жыл бұрын
Looks good, nice project all in one but do you know the converter efficiency of the booster please
@yuby985
@yuby985 4 жыл бұрын
Great video 👌!!! Do you have video for your power supply 10:10??? Looks nice 👍
@Ed19601
@Ed19601 6 ай бұрын
Great work, a powerpath would have been handy too
@Vinz3ntR
@Vinz3ntR 3 жыл бұрын
This is great, can this circuit be ordered completely built? I never soldered smd components, I also only have a normal soldering iron, I don't know if it's possible to do it myself.
4 жыл бұрын
I found a similar module with a 9V/12V switch. The switch would break before make, so the boost IC burned when I switched the output voltage while powered, just like yours. Maybe you should consider a make before break switch, or a different resistor configuration as suggested in another post. A make before break switch would have avoided the problem.
@sciencesi5595
@sciencesi5595 3 жыл бұрын
12:04 A simple 2 channel switch just like this with one channel for battery other for switching nd the off switch in middle so every time u switch evn battery is turned off & on again
@danielwcrompton
@danielwcrompton 4 жыл бұрын
Nice explanation, it did leave me with some questions. Why didn't you have a 7k5 resistor on the MT3608 ic and have a switch add 12k5 resistance to the circuit ? Wouldn't that save the components you added and avoid the current spike for the MT3608?
@ranganatennakoon
@ranganatennakoon 4 жыл бұрын
thanks !!! 💗💗
@mpty2022
@mpty2022 2 жыл бұрын
great work, can you add solar charing capabilities in it
@walidebdelli1046
@walidebdelli1046 4 жыл бұрын
Awsame as usual..thank you
@helmuthschultes9243
@helmuthschultes9243 3 жыл бұрын
Better solution for voltage select is to switch the resistor value by bridging one resistor in one state and connect both in series in the other mode. Means for example 7.5k in series with 12.5k for the 20k in 12v, with the 12.5k bridged by the switch for 5v, so 7.5k in 5v mode and 20k with 12.5k connected/not bridged for in 12v mode. At no time is the feedback disconnected and it becomes safe to switch even with battery in place.
@eeepro8746
@eeepro8746 4 жыл бұрын
Nice bro
@malshwwaf
@malshwwaf 4 жыл бұрын
Well done!! Impressive work! You can connect one of the two resistors bettween C7 and R7 point for protection of U4 and let the switch toggle bettween the another resistor in parallel to give you the exact boosted voltage and open connection . *Fixed resistor 20k between C7 and R7 ( new connection ) *NC open ( new adjustment ) *NO 7.5k = R fixed // R toggled Bettwenn C7 and R7 ( same connection) 7.5k = 1/( (1/Rt) + (1/20k) ) R toggle = 12k So either 20k or 20k//12k = 7.5k No floating point Hope that helps
@ELECTRONOOBS
@ELECTRONOOBS 4 жыл бұрын
Thanks for the tip. Great idea!
@malshwwaf
@malshwwaf 4 жыл бұрын
@@ELECTRONOOBS keep it up!! I've been following you since 4 years and you helped alot during my engineering degree till graduation
@TechInventorAman
@TechInventorAman 3 жыл бұрын
Can you tell me the exact version of the dw01 using ??? Because you are using dw01a (acc to schematic) which has an auto-recovery feature then you are able to achieve that during over-discharge, only USB input will enable the system.
@jamess1787
@jamess1787 4 жыл бұрын
UPS support would be nice. Pull a GPIO high/low when on battery?
@cornelichim4661
@cornelichim4661 2 жыл бұрын
Do you have DIY from 12v to 5v with battery? I need for a nextion display on my car to use like a remote about 10-20min
@PyciuStw
@PyciuStw 4 жыл бұрын
Dear Electronoobs, for the sake of the clearity i'd highly recommend cleaning PCBs with acetone before shooting. It makes them look much more professional. :D
@james10739
@james10739 4 жыл бұрын
Is there a service where you can give them the file and a parts list and have them send them out as a kit at a cheap price really is buy them assembled but I just assume they will be relatively expensive
@ted_9064
@ted_9064 3 жыл бұрын
Awesome. How can I make the same circuit to pull out to 5 amps?
@tberry7348
@tberry7348 4 жыл бұрын
Awesome, do you have a link to order the completed board?
@davestech6357
@davestech6357 4 жыл бұрын
Your measuring the input current and you say it is the output current. If you have the voltage change resistors in series instead it won't blow your chip. The switch would be in parallel with the one resistor instead. That makes the chip to always see the reference.
@zstergios
@zstergios Жыл бұрын
Amazed! Consider adding power path, when battery is fully charged. Consider adding switch to turn off leds (for iot usage). Consider adding adjustable charging current for Dual Battery (2P 28650) I am searching a module with features above. I want to build a remote sensor with esp32+gsm (nb iot)+2P 18650+ solar panel (v6 to v12). Any recommendations?!!??😅
@stormrazer121
@stormrazer121 Жыл бұрын
Although I am a bit late to this, this is exactly what I'm looking for, I don't need the 12v so how would one remove it from the schematic?
@xuttuh5260
@xuttuh5260 3 жыл бұрын
You could have avoided the issue with the undersized inductor by looking at the commercial boost PCB with MT3608. The Chinese usually use the smallest/cheapest possible part to get the job done, so if your coil is smaller than theirs, it is most likely too small.
@djulien234
@djulien234 11 ай бұрын
Great video and PCB! Just wondering - instead of adding a second switch why not just use 8.5K for R9 and then use a single switch to short out a 12.5K resistor? That way there is never an open circuit in the voltage selector.
@StitchesLovesRats
@StitchesLovesRats 3 ай бұрын
Could you do an update video for V3? How do you select the output voltage as I don't see 2 seperate files for materials
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