So is it safe to say that battery powered devices are DC? I knew that the electrical panel in our home is AC and our appliances are so I assumed our plug in devices were as well. What is the easiest way to determine a DC vs AC device?
Love the concept and project but doesn't this produce DC which can damage our household AC items like phones and ipods? Just wondering if you did something to deal with this, or if I am incorrect in thinking it is putting out DC current.
@moenk5 You have that backwards... USB is DC, AC is for general appliances like washers/dryers etc. Think about how to charge a phone you need to use an adapter to convert the AC from your wall outlet to DC. With these panels you are already getting DC so there's no need to convert it to charge a phone.
@Badersphere I really have no idea how iphones work. I don't have one, and I'll probably nevr have one. Look though the comments, though. People have given some good information about the tricks manufacturers do to make it difficult to charge certain items.
From what I remember from my electronics days (is been many years I'd admit) you really should have caps connected between the common (middle pin) and the input and output stages of the 7805 to make the voltage more stable and less prone to electrical noise etc.
dang I am having issues with mine, I learned my Fry's elec solar panel is a 12V but I still a single USB port and I can't even charge my simple MP3. HELP!!!
So could your design/concept recharge cell phones? I'm just thinking, in the proper housing, you could take it camping or hiking, and in an emergency situation could help save your life. If you are within, or come into range of a cell tower this could be worth its weight to value ratio in a survival situation.
Thanks dude, me and a friend did one of those high altitude space balloon expiriments. We used this design about 4 times to build a massive solar panel n it that powered all the electronics for the entire mission. Thank you!
I heard you can just use a 5V solar panel hooked up directly to the female USB adapter with no 5V regulator. Would that be okay for phones and ipods or should I also use a 5V regulator
I used the two 3V in series but nothing? I think not enough amp? I am trying to use as a charger for iPhone 3G. There was also a 12V solar panel available at the store, could I use this instead or wold that be too much for the 5V VR? Any ideas?
I bought a similar device on ebay and ended up having to learn about how usb connectors work to get it to charge my micro-usp device, which also applies to ipod devices. The 2 middle "unused" pins on the usb need to be connected so they are shorted. That what when it is plugged into a smart device that is looking for data on those pins it sees a short and knows it's just a charger. If you don't do this, it won't allow it to charge...
@gabe2304 you can go to your local radio shack and ask them about a USB connector they will hook u up and if you need a solar panel you could pick one up there. All together I spent about 20 dollars there for this project
@Trevorapple Well... I've heard that apple puts tricky little circuitry in their stuff now to make it only work with other apple things. They're kinda jerks that way. I am not a fan of itunes.... but they make it reall difficult to use anything else, so I almost never use an ipod. ...so I don't have any new ones. Some people have mentioned things in the comments here, though.
@JMEMantzel I'm currently trying to make one of these for a school porject, but i have the panel, and regulator, but can't find a usb connector in any stores, do you have to order it online?
@JMEMantzel I'm currently trying to make one of these for a school porject, but i have the panel, and regulator, but can't find a usb connector in any stores, do you have to order it online?
@xbertolerox Sweet. Ya, mine is old too. It charges pretty well in the sun. If I leave it plugged in when not in the sun, it drains it (I totally thought apple would have put circuitry in there to prevent such a thing, but they apparently didn't). So... I could put a blocking diode in there. ....but I just unplug it when its not in the sun, and its no roblem. :-)
hey one quick question if i want to hool op a switch would i take either the negitive or positive leads stright from the pannel cut/strip them than put them on the switch would that work ( im still fairly new to eletronits)
would more amperage be risky for the devices because i was planning on using a 6v panel that put out 160 ma to charge a iPod touch. would going with a higher amperage be a better choice?
So I made one, and it works. I used all mouser items, even mouser solar panels. I did have an issue with the mouser usb port. It had a loose connection and so it would not connect with my ipod, and i thought i did something wrong, but when I replaced the usb port, it worked.
@xbertolerox what type of ipod do you have and from what year? I made one that will connect to my phone but not to ipod. I read online that apple products require a different schematic for the USB but I'm not sure
Good job dude. I have seen some videos on this topic, but i like how clear yours was. thanks for telling us where to buy the essential parts, as this information is not often divulged. Thanks also for simply showing how the wiring is connected, as many of us are not technically inclined enough to read schematics. Awesome job!
i know. i made a 9v battery with a voltage regulator and it didnt charge my ipod touch, same result as you, light up, but no charge. probably cause of amps.
@mightykeys more than likely your solar panels didnt have enough amps, this is what i found out after ordering a bunch of 16v 19ma panels, Anyone that attempts this project make sure you have panels or photovoltaic cells, that produce atleast 2volts over your regulator + 500ma - 1amp, if you hook up a voltage tester you will come to realize that once the panels are under a load (charging) your voltage will drop with low amps, this is why you need atleast 500ma-1amp. hope this helps people.
must read this. once u have started there is no turning back.a little 10 yr old girl was raped and murderded in 1945. her body was not found until 1947. then a boy last week read this and did not copy and paste this message. the dead girl appeared in his room haunting him and killed him.if you do not copy and paste this onto 10 vidoes in 30 min the dead girl will apear in your room tonight and haunt you and kill you. well you better start to copy and paste to be saved
i bought some 100ma 3v, 2no's, each showin some 2.5v when i connet them in series it's still showin 2.5v so i even tried with parallel still gettin 2.5v!!,,..plzzz help me out already i've wasted some 12usd, plz help me out i'm ready to donate for ur giant robot!!,,..thanx
Solar cells are 5 bucks at walmarts lawn and garden section. The cells are 1.5volts. They are manufactured as solar powered path way lights. You can deconstruct these and end up with.. 1 solar cell, 1 rechargable battery, 1 LED, and one Light sensor... not bad for 5 bucks!!!
You said you had 100mA on the solar panel you used but used two. So does that mean you had 200mA? Or 1000mA. I'm starting to learn electronics and I'm trying to figure it all out.
@mightykeys You would need the appropriate resistor at the junction of the two solar panels that would be enough to lower the amperage to protect the LED from blowing. You then hook the positive side of the LED to the end of the resistor, then connect the negative side of the resistor to ground.
@Cows607 then the problem is with the 5V regulator. It either doesn't work or you soldered it wrong. If the regulator heats up too much then it won't work.
@thecow777clone thanks for the reply. I will try out my backup one then. I know i soldered it right but maybe it heated up too much like you said. I'll let you know when i actually get some sun.
as a more efficient alternative to a 5 volt regulator you can use the board out of most car chargers (cigarette lighter socket phone chargers), ive gotten a fair few second hand for less than a buck each, most of them are 5v output already, if they arnt then you have to change a resistor value to set the voltage
these boards run at about 95% efficiency (a lot better than the lm7805) , which means more power for your devices, and are usually based on a mc34063 voltage mode switching ic, :-)
they are just buck (step down) converters, and the chip will actually run down to 3 volts, so if the panel puts out less than 5v then its just switched directly to the output.
the lm7805 5v regulator (unless its the low dropout LDO version) actually needs a couple of volts more to operate properly, ie its inefficient.
to clean up the output voltage of the regulater (hook it to an oscillascope , you'll see ripples) you can put a electrolytic condensator over the output of the regulator.
5 volts or higher (up to 10 would be best) and atleast 1000 uF (micro farad)
This in case your equipment doesn't like the charge voltage. (you have noises from your mp3 player when it's hooked up and running for instance)
Well, I've hooked up everything, it seems not to work. I know the connections are right so I know it has to do with the two center prongs. So what tells the iPod it's okay to charge?
you are so great, Jamie! :) I love the details. I'm not an electrician; however am an IT Engineer! I don't have any clue what electricity is - I hate it. But now I'm motivated to build a solar panel on my house, and go off the solar panel as far as providing electricity in my whole house (wash/dryer machines, tvs, ac/heat which I plan on running it 24/7,...). Thanks for the explication on the video. You have a great gift of explaining. Bravo to you! :)
Hmm... I think I found my Science fair project :)
jernito 6 days ago
@burpen
So is it safe to say that battery powered devices are DC? I knew that the electrical panel in our home is AC and our appliances are so I assumed our plug in devices were as well. What is the easiest way to determine a DC vs AC device?
moenk5 1 week ago
great video man!
flyboy911911 1 week ago
Great job....
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DanielBrown89 1 week ago 2
Realy nice n'awesome
HefaistosSon 2 weeks ago
Does it work for iPad 2?
williampengsean 3 weeks ago
Herro....
I have a 3.3V GE panel that has a battery built in from Home Depot for Christmas Lights...
Do I need to piggyback the thing w/ another one?
Gthomps2 4 weeks ago
@JMEMantzel
Love the concept and project but doesn't this produce DC which can damage our household AC items like phones and ipods? Just wondering if you did something to deal with this, or if I am incorrect in thinking it is putting out DC current.
moenk5 1 month ago
@moenk5 You have that backwards... USB is DC, AC is for general appliances like washers/dryers etc. Think about how to charge a phone you need to use an adapter to convert the AC from your wall outlet to DC. With these panels you are already getting DC so there's no need to convert it to charge a phone.
burpen 2 weeks ago
@Badersphere I really have no idea how iphones work. I don't have one, and I'll probably nevr have one. Look though the comments, though. People have given some good information about the tricks manufacturers do to make it difficult to charge certain items.
JMEMantzel 1 month ago
what about a diod? im trying to do thing but could my solar panel my panel is 12v at 10amps
nate3535 1 month ago
@thefogul Yeah it will
plod33157 1 month ago
its all right im a super nerd too i have all those things lying around :)
LOPEZdJUNGLIST 1 month ago
From what I remember from my electronics days (is been many years I'd admit) you really should have caps connected between the common (middle pin) and the input and output stages of the 7805 to make the voltage more stable and less prone to electrical noise etc.
andyspoo2 2 months ago
Will it work if my voltage regulator is more that .5a?
thefogul 2 months ago
F*CK i need a sht load of calculators...
MrDotMontage 2 months ago 6
@MrDotMontage steal the m from school.. 1 at a time for the rest of the year O.o
Nogorn 2 weeks ago
steal your neighbors solar garden lamps ;)
mikeike200793 2 months ago 4
dudeeeeeeeeeeeeeee...... put a heatsink even it don't gets hot you'll be sure that it won't caught fireeeeeeeeee
or it will melt
justin18349 3 months ago
The following seems more suitable for some real USB charging, as most chargers have 0.7A instead of .5A
Mouser Part #: 821-TS78M05CZ
Manufacturer Part #: TS78M05CZ
Pezoafamily 3 months ago
No fuse?
pleasecho2 3 months ago
can you put 2 solar panels back to back?
MrY3110w 4 months ago
im gonna build 1 for my psp
SUPERIORSoundwave8 5 months ago
my solar panel wont work it says on my multimeter that it has 8 volts but when i test it on a llight or somthing like a mini moter i doesnt work?
jakedasnake50 5 months ago
dang I am having issues with mine, I learned my Fry's elec solar panel is a 12V but I still a single USB port and I can't even charge my simple MP3. HELP!!!
Airmanmx1 5 months ago
Thanks man, I love you. Exactly what I wanted to see. No homo.
TruanNguyen 5 months ago
So could your design/concept recharge cell phones? I'm just thinking, in the proper housing, you could take it camping or hiking, and in an emergency situation could help save your life. If you are within, or come into range of a cell tower this could be worth its weight to value ratio in a survival situation.
:)
:P
Joxman2k 5 months ago
well explained video mate! well done!
THANKS
fazdabest 5 months ago
Thanks dude, me and a friend did one of those high altitude space balloon expiriments. We used this design about 4 times to build a massive solar panel n it that powered all the electronics for the entire mission. Thank you!
TailsBit 5 months ago
I heard you can just use a 5V solar panel hooked up directly to the female USB adapter with no 5V regulator. Would that be okay for phones and ipods or should I also use a 5V regulator
SciFacts4YOU 6 months ago
Jusy look up ebay o.e
gookluck1 6 months ago
i want one
shaneduboiscomputers 6 months ago
superb thanks !!!
S3YARA 6 months ago
Wait! is it a usb charger or solar charger?!
TrialVersion8 6 months ago
that awesome to i am from vt too cool i am about to make one for my iPhone
..
Lorelai2LOL 6 months ago
I used the two 3V in series but nothing? I think not enough amp? I am trying to use as a charger for iPhone 3G. There was also a 12V solar panel available at the store, could I use this instead or wold that be too much for the 5V VR? Any ideas?
wattnott 6 months ago
this video made me search my own mp3 charger and i found it!!
GreenAlligator12259 6 months ago
Do the power regulators increase the amps as they decrease the colts or would I be better off just wiring then up in parallel
giantsquidMAN 7 months ago
@giantsquidMAN the voltage regulators keep the voltage to the rated voltage and current, in this case, 5V and 0.5A.
5V is considered to be safe charging voltage, hence the VR are required.
if the output of the panel is low, that is, less than ipod's battery rating usually 3.3V or something then the ipod discharges
sahil4ever1 6 months ago
WOO VT I LIVE HERE 2. which region
njmvermont 7 months ago
Silly USB junk.
dandamannnnn 7 months ago
This was as simplistic as 1...2...3. Thanks so much. Hope I don't fry my iphone...knowing my luck I might start a fire. :(
Airmanmx1 7 months ago
I bought a similar device on ebay and ended up having to learn about how usb connectors work to get it to charge my micro-usp device, which also applies to ipod devices. The 2 middle "unused" pins on the usb need to be connected so they are shorted. That what when it is plugged into a smart device that is looking for data on those pins it sees a short and knows it's just a charger. If you don't do this, it won't allow it to charge...
philipscoggins 7 months ago
how long does it take for it to charge?
VuduHD 7 months ago
Whats the cheapest way to get 500-1000 milliamps?
TheGreaterGoat 8 months ago
If I wired my solar panels to 14v @ 80milli amps would I the same amps at 5v as wired solar panels 7v @ 160 milli amps ??? Thanks
sim6699 8 months ago
@gabe2304 you can go to your local radio shack and ask them about a USB connector they will hook u up and if you need a solar panel you could pick one up there. All together I spent about 20 dollars there for this project
imawesomeyayaya 8 months ago
I looked at Mouser's site they have a double female connector, would that work with this project?
gabe2304 8 months ago
Nice vid dude! Will be trying this soon
Makingmagic4 8 months ago
does a +5vdc regulator work im a noob
shasanain 8 months ago
what happens if the solar panel is 50 milli amps
YOUMUSTDIEMAMALUIGI 8 months ago
I have an iPod touch 2nd gen and a env touch, the env touch Charges when I put the solar panel up to the light but my iPod doesn't, WHAT DO I DO?
imawesomeyayaya 8 months ago
where did you get the 8 volt solar panel?
YOUMUSTDIEMAMALUIGI 8 months ago
Where can I get the USB connectors
imawesomeyayaya 8 months ago
What kind of solar panels are they?
imawesomeyayaya 8 months ago
Nice video
lame3x 8 months ago
bad thing is I had this stuff laying around
Bmastertjuh 8 months ago
I tried this with a security solar light and USB dives and it has 5.3 V and it doesn't charge it at all
CharlesB6977 9 months ago
Hey Jaimie, we have the same ipod!
teamorr96 9 months ago
subscribing! cheap and easy !
ingesumadre 9 months ago
where i can see or find the solar plate or the black plate..???
nAjpHiL12 9 months ago
Did you soder the usb and voltage on the panel or just the wires to the voltage regulator
killer9000000000 9 months ago
you can stick the solac panel to the back of the ipod with some velcro : )
MoeGrills 9 months ago
@JMEMantzel nice video. What type of transistor you are using (detail) ? :)
Future20Vehicle12 9 months ago
I'm looking to do something like this with old solar garden lamps,
evilweeman 10 months ago
@evilweeman me too. ;) but my garden lamps only have about 0.5V. that`s the problem!!!
James00722Bond 10 months ago
You can definitely get the voltage regulators, any diodes and some other stuff at radio shack.
kekejojo1212 10 months ago
This has been flagged as spam show
For the regulator, could I use a 5V 1amp instead of a 0.5 amp? How will that affect the charging?
euskadi9999 10 months ago
For the regulator, could I use a 5V 1amp instead of a 0.5 amp? How will that affect the charging?
euskadi9999 10 months ago
@euskadi9999 You can use one.
nltubeyou 10 months ago
@euskadi9999 no. It just means it will handle up to 1 amp of electricity, which should suffice as *most* USB devices use less then that.
Hayeshacker0NE 8 months ago
Thanks i am going to try to make my own it should be easy because i am good with stuff like that but i did find the items ok
xXTACOMONSTXx 10 months ago
i like how u can still be human and tell me how to do something :) have a cookie.
extperry5 10 months ago
@extperry5 I love cookies!
JMEMantzel 10 months ago
Does this work with iPod touches?
Trevorapple 10 months ago
@Trevorapple Well... I've heard that apple puts tricky little circuitry in their stuff now to make it only work with other apple things. They're kinda jerks that way. I am not a fan of itunes.... but they make it reall difficult to use anything else, so I almost never use an ipod. ...so I don't have any new ones. Some people have mentioned things in the comments here, though.
JMEMantzel 10 months ago
@JMEMantzel I'm currently trying to make one of these for a school porject, but i have the panel, and regulator, but can't find a usb connector in any stores, do you have to order it online?
Trevorapple 10 months ago
@JMEMantzel I'm currently trying to make one of these for a school porject, but i have the panel, and regulator, but can't find a usb connector in any stores, do you have to order it online?
Trevorapple 10 months ago
@Trevorapple not sure where to get 'em in the "real world" but I found mine online at mouser electronics.
JMEMantzel 10 months ago
@JMEMantzel i cant find a usb connector anywhere, do those have to be ordered online?
Trevorapple 10 months ago
@Trevorapple take them off an old computer
JDTV1995 10 months ago
@JMEMantzel I know that you can plug them into the wall, so this should work for touches too!
btbraden08 2 months ago
@Trevorapple yepp
TH3MW2PL4Y3R 2 months ago
I think my ipod is a 5th gen. It is a 30GB color clickwheel with video and photo display. A bit old, but it works. I had no problems charging it.
xbertolerox 10 months ago
@xbertolerox Sweet. Ya, mine is old too. It charges pretty well in the sun. If I leave it plugged in when not in the sun, it drains it (I totally thought apple would have put circuitry in there to prevent such a thing, but they apparently didn't). So... I could put a blocking diode in there. ....but I just unplug it when its not in the sun, and its no roblem. :-)
JMEMantzel 10 months ago 3
Comment removed
gabe2304 10 months ago
you can buy a solar powered charger on ebay almost for free.
Jens1503 11 months ago
@Jens1503 Ya.... you can buy a lot of things. .....and never learn a thing. ....and never have any fun too. I spose its all personal preference.
JMEMantzel 10 months ago 44
@Jens1503 how can you buy for free?
cebaster 6 months ago
@cebaster Magic my friend, magic...
leonardo2795 6 months ago
Im sooo trying this out!! I just need the solar panels! :D Thanks dude! This boosted me up
leonardo2795 6 months ago
@cebaster points2shop or swagbucks.
KashgroundTM 4 months ago
did you say that was a 8v panel? I have a 6v one just like it. how did you connect the 2 8v panels together?
ridenhour1 11 months ago
amazing!!!
MrTooweak 11 months ago
This is great. And fun. Can't wait to try it!
DroseraBohemica 11 months ago
did you glue the two 6v solar panel together?
ridenhour1 11 months ago
hey one quick question if i want to hool op a switch would i take either the negitive or positive leads stright from the pannel cut/strip them than put them on the switch would that work ( im still fairly new to eletronits)
allen2688 11 months ago
Comment removed
PigeonTech 11 months ago
Isn't there something like this already on the market already made up?
Stube437 11 months ago
@Stube437 yes but its fun to make these
allen2688 11 months ago
would more amperage be risky for the devices because i was planning on using a 6v panel that put out 160 ma to charge a iPod touch. would going with a higher amperage be a better choice?
597Ryan 11 months ago
Great tutorial!
HenrikTheFilmMaker 11 months ago
So I made one, and it works. I used all mouser items, even mouser solar panels. I did have an issue with the mouser usb port. It had a loose connection and so it would not connect with my ipod, and i thought i did something wrong, but when I replaced the usb port, it worked.
xbertolerox 1 year ago
@xbertolerox what type of ipod do you have and from what year? I made one that will connect to my phone but not to ipod. I read online that apple products require a different schematic for the USB but I'm not sure
reddinosaur7 10 months ago
No I tested the panel and I got 700MA and 5V.
mightykeys 1 year ago
If i have a phone that charges off of say 3.7 volts will it destroy my battery?
tophlovr 1 year ago
This has been flagged as spam show
Good job dude. I have seen some videos on this topic, but i like how clear yours was. thanks for telling us where to buy the essential parts, as this information is not often divulged. Thanks also for simply showing how the wiring is connected, as many of us are not technically inclined enough to read schematics. Awesome job!
xbertolerox 1 year ago
Comment removed
xbertolerox 1 year ago
Comment removed
xbertolerox 1 year ago
I tried charging my iPod with this but the screen only lit up, it did not charge. , Help!!
Captnabhe 1 year ago
@Captnabhe
i know. i made a 9v battery with a voltage regulator and it didnt charge my ipod touch, same result as you, light up, but no charge. probably cause of amps.
hardwarerob1 1 year ago
this doent work, i done the exact same thing as you and it doesnt work. help!
mightykeys 1 year ago
@mightykeys more than likely your solar panels didnt have enough amps, this is what i found out after ordering a bunch of 16v 19ma panels, Anyone that attempts this project make sure you have panels or photovoltaic cells, that produce atleast 2volts over your regulator + 500ma - 1amp, if you hook up a voltage tester you will come to realize that once the panels are under a load (charging) your voltage will drop with low amps, this is why you need atleast 500ma-1amp. hope this helps people.
SiYanara 1 year ago
where can i find athose solar panels
noneflow 1 year ago
@noneflow Try RadioShack! Don't have one? Try Academy Sports & Outdoors! Don't have one? Good luck tring to find one! =D
gabe2304 1 year ago
@bubblescongo ill rape that girl if she comes into my room
planetarypush 1 year ago
@planetarypush Don't ever say something like that you idiot.
TheChemist187 1 year ago
@TheChemist187 did u even see his comment? obviously its fake cus im still alive and i didnt do wat he said, honestly im very horny
planetarypush 1 year ago
Man thanx for the video!! nice work out there!!! bis bis bis bis bis :))
Kentossul 1 year ago
This has been flagged as spam show
must read this. once u have started there is no turning back.a little 10 yr old girl was raped and murderded in 1945. her body was not found until 1947. then a boy last week read this and did not copy and paste this message. the dead girl appeared in his room haunting him and killed him.if you do not copy and paste this onto 10 vidoes in 30 min the dead girl will apear in your room tonight and haunt you and kill you. well you better start to copy and paste to be saved
bubblescongo 1 year ago
i bought some 100ma 3v, 2no's, each showin some 2.5v when i connet them in series it's still showin 2.5v so i even tried with parallel still gettin 2.5v!!,,..plzzz help me out already i've wasted some 12usd, plz help me out i'm ready to donate for ur giant robot!!,,..thanx
sachin580i 1 year ago
Solar cells are 5 bucks at walmarts lawn and garden section. The cells are 1.5volts. They are manufactured as solar powered path way lights. You can deconstruct these and end up with.. 1 solar cell, 1 rechargable battery, 1 LED, and one Light sensor... not bad for 5 bucks!!!
REV7verse9 1 year ago
Hey nice score! I really like those USB project ports.
YTBYlover 1 year ago
buy once from ebay
lepricoun 1 year ago
I looked up the L78505CV voltage regulator on Mouser, and it has a dropout voltage of 2V.
That means you need to supply it with 7V in order get a steady 5V out.
I'm just a beginner, but I think this is correct.
leeYT321987 1 year ago
do you need two 8v 100mamp or a total of?
somezemos 1 year ago
Lol. That was sarcasm btw but I'm a newbie at electronics but can build anything
mightykeys 1 year ago
@Nadrealis what do u mean to connect the negative side of the resistor to ground. What's the ground? The physical ground?
mightykeys 1 year ago
i need one of these for my android cell
thecrism1 1 year ago
You said you had 100mA on the solar panel you used but used two. So does that mean you had 200mA? Or 1000mA. I'm starting to learn electronics and I'm trying to figure it all out.
mightykeys 1 year ago
@mightykeys 200
thecow777clone 1 year ago
How would I connect rechargeable batteries to it?
mightykeys 1 year ago
If I wanted to add an LED light to make sure that there is electric current how would I add that to the circuit?
mightykeys 1 year ago
@mightykeys You would need the appropriate resistor at the junction of the two solar panels that would be enough to lower the amperage to protect the LED from blowing. You then hook the positive side of the LED to the end of the resistor, then connect the negative side of the resistor to ground.
Nadrealis 1 year ago
FYI: Pin 2 and 3 Need to be shorted for many devices such as Sony Erickson phones and some Blackberry phones, Zune ..., the recommended amps is 1000mA
Most car chargers use 1000mA, less than that is only enough for very small devices such as Sandisk players and so on.
ericpezoa 1 year ago
how do these solar panels work? ive never understood, and everytime i found myself playing with them i just conclude that they use dark magic...
PunkBoy755 1 year ago
I should make one of these for trips, would be great. and it seems pretty cheap.
brt5470 1 year ago
HI
Did you solder the voltage regulator to the solar panel...and is it difficult when soldering it?
Thanks
Lionheartone 1 year ago
same here
nerdfighter11001001 1 year ago
I did everything EXACTLY as you did it. Same solar panels. Same regulator. Same USB port. Plugged into my iPod Touch and I get nothing.
I checked all my connections and theyre in good. Resoldered everything and still nothing.
Any help?
Cows607 1 year ago
@Cows607 Same here
caleb7k 1 year ago
@Cows607 get a voltmeter to see if the solar panel works
malankan 1 year ago
@malankan I checked both solar panels and i was getting about 5.5-6 volts at the time.
Cows607 1 year ago
@Cows607 then the problem is with the 5V regulator. It either doesn't work or you soldered it wrong. If the regulator heats up too much then it won't work.
thecow777clone 1 year ago
@thecow777clone thanks for the reply. I will try out my backup one then. I know i soldered it right but maybe it heated up too much like you said. I'll let you know when i actually get some sun.
Cows607 1 year ago
as a more efficient alternative to a 5 volt regulator you can use the board out of most car chargers (cigarette lighter socket phone chargers), ive gotten a fair few second hand for less than a buck each, most of them are 5v output already, if they arnt then you have to change a resistor value to set the voltage
these boards run at about 95% efficiency (a lot better than the lm7805) , which means more power for your devices, and are usually based on a mc34063 voltage mode switching ic, :-)
selwynrh 1 year ago
@selwynrh
Right but remember, a car charger operates at 12v input ! So a larger solar panel is required.
DQuerel 1 year ago
@DQuerel
they are just buck (step down) converters, and the chip will actually run down to 3 volts, so if the panel puts out less than 5v then its just switched directly to the output.
the lm7805 5v regulator (unless its the low dropout LDO version) actually needs a couple of volts more to operate properly, ie its inefficient.
thanks for bringing up the point though
selwynrh 1 year ago
save your favorite movie now naneedj.info
dilkaa 1 year ago
More talking less waiting
oscomputertricks 1 year ago
to clean up the output voltage of the regulater (hook it to an oscillascope , you'll see ripples) you can put a electrolytic condensator over the output of the regulator.
5 volts or higher (up to 10 would be best) and atleast 1000 uF (micro farad)
This in case your equipment doesn't like the charge voltage. (you have noises from your mp3 player when it's hooked up and running for instance)
fragwits 1 year ago
Well, I've hooked up everything, it seems not to work. I know the connections are right so I know it has to do with the two center prongs. So what tells the iPod it's okay to charge?
laserman55901 1 year ago
does this work for a 9 volt 200 Ma solar panel? Will the 5 volt regulator regulate the flow of Ma also?
treesarehere 1 year ago
@treesarehere I don't think you want to limit the Ma, the more Ma the faster the charge goes, but I'm not sure.
GenTristan 1 year ago
how much r the solar panels..?
BRAeminem 1 year ago
Is there an IRC for helping out people working on this stuff?
treesarehere 1 year ago
How many volts does a 5 volt regulator need to work?
treesarehere 1 year ago
@treesarehere 7-31volts, the more voltage you run into it, the hotter it will run, be sure to use a heatsink.
internet155 1 year ago
Very cool demo sir! well explained and super informational.
albear972 1 year ago
HALP! Do absoluley need a sautering iorn cuse' I don't have one...
kickiwi 1 year ago
@kickiwi You can find one for prob $8 that will get the job done.
Chargeglass 1 year ago
I just ebayed everything >=D
Slapping mine onto my backpack to charge my iPod and Blackberry (Of identical voltage requirements)
NiGhtprOwIeR 1 year ago
outstanding video! well done! im off to the electronics place now! woohoo!
wizardesque 1 year ago
hey thanxx now i dont need to switch my i pod in switch direct solar amazing thank you very much keep making things like this good luck
MrDanyalahmed1 1 year ago
4:05 Look the voltage regulator has the Liberty bell on it, where is the crack?
Coolman3428 1 year ago
that is badace
mebich1 1 year ago
will a 5.8 volt 140mA solar panel work?
ZUMAGI 1 year ago
where do you get the solar panels?
darklordj100 1 year ago
This has been flagged as spam show
hey bro, im trying to build one of these, could you do me a favor and email me
ritchie.jose93@gmail.com, thanks
DJ20Rupees 1 year ago
hey bro, im trying to build one of these, could you do me a favor and email me
DJ20Rupees 1 year ago
I'm COnfused.
Can u use 2 solar panels with are 50 mA and hook them up to suffice the 100 mA required to charge the device?
Reply Asap
Thanks for posting this vid.
466267 1 year ago
will a 3.7v fone battery work
mario12184 1 year ago
great project, but I got a question.
can u add a battery backup to that setup? (and include a video tutorial about how you did it) please!?
zyx296 1 year ago
you are so great, Jamie! :) I love the details. I'm not an electrician; however am an IT Engineer! I don't have any clue what electricity is - I hate it. But now I'm motivated to build a solar panel on my house, and go off the solar panel as far as providing electricity in my whole house (wash/dryer machines, tvs, ac/heat which I plan on running it 24/7,...). Thanks for the explication on the video. You have a great gift of explaining. Bravo to you! :)
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