okay guys i have 2 of these ultra thin USB hubs and i have a desire to power them internally but it also have a bit of an issue it doesnt come with the DC jack for additional power each one says that it need 5V DC and the + sign is attached to the dot inside the circle telling me that its tip positive this is the tip that fits and is the way that i want to provide the additional power to the hubs and now here is my delima do i go with this which takes the plug to bare leads or do i go with this which goes to one end for the adaptaplug now if i go with the latter then i could easily splice the 2nd adaptaplug into it and the adapter can be set on 10.2V which is just a little more then i would need which is perfect for powering both of those hubs and i have the power into the case taken care of all ready what are you opinions and thought thanks guys
When you say you want to power them internally do you mean power them from your computers PSU or from a wall wart as shown in your link? Either way you need a 5v supply not a 10.2v supply, you cant connect them in series you must connect them in parallel. If you want to run them off your PSU then I would suggest you buy 2 of the bare wire adapters and wire them both to a molex red for 5v black for ground, make sure you get them the right way round. If you want to use a wall wart I would say buy one wall wart and one bare wire adapter then splice the bare wire adapter into the wall wart leads. Moriquendi
Hi. If you're going to splice the second plug onto the power adaptor (in parallel), the voltage would need to be set to 5V. You don't add the voltages. The CURRENT will be split, but the voltage going to both of them will still be 10V each. You'll maybe fry whatever you plug into them... Now if they were in series, then it would split the voltage (5V each...perfect) , but i'm not sure if these can be wired in that way. Note: That 800mA adaptor output is AC. You'll have to find a dc one. Like this http://www.radioshack.com/product/index.jsp?productId=2484265. Why not just power them with 5V from a molex plug....? Good luck mate...
Not so much beaten, as adding a second opinion of the same flavor to enhance the effect of the primary opinion. I would have typed something similar as well, but I am several time zones out of sinc. If you are following along, you now have 3 different people that would NOT suggest using the 10v option, as it would FRY whatever you plug into it. As well you have 3 people that would recommend using the bare wires run off a molex to make it entirely internal.
for starter i have 2 hubs each requires 5V so i would need 10V and i would splice them in parallel (forgot to mention that) im already going to have a way of getting a wall plug inside my case so i could adapt that for use with powering the USB hubs as for connecting it to my molex and psu which side on the blasted wires are positive? if its tip positive.......... how would i go about finding out which wire is the positive and which is the negitive? whats why ive been looking at the wall wart it could potentially be easier for me to connect it using the wall adapter instead of connecting them backwards and frying out the hubs or worse
No, you're getting confused between current and voltage. With something like a lightbulb where the current is constant you can indeed wire them in series where 2 5v bulbs will take 10v and the current through each will be the same and the correct current. However you cannot wire something like a hub in series because the current each one requires varies, one will end up getting fried or not having enough current to run, you must wire them in parallel. In parallel the voltage is the same for each hub and both will draw only the current they need therefore the wall wart must supply 5v not 10v. You will need a multimeter or at least a continuity tester or LED to find out which wire is connected to which contact on the adapter. Moriquendi
ahh for this mod but i have other plans in my mind in which i will need it not to mention its a very nice one for the price
Unless you need to record signals or transients you wont need one like that. The one I linked will cover everything you need. Considering your level of electronic knowledge you really shouldn't be tackling anything that requires a recording meter until you have quite a few simpler projects under your belt. Moriquendi
im actually working on those simpler projects right now one of them is a simple motorized plane that is basicly made from trash and some parts from radioshack a 6V motor, switch, 5V voltage reg., and 4x 2450 watch batteries some foam, and cardboard now i just need a place to fly and some dry weather and see if it works im still looking for a prop though
Like others have said if your using them internally in your PC the best bet is to just get power from the 5v rail from the PSU Molex Connector Pin Out
SI PV when in series the current (I) is affected. when in parallel the Voltage (V) is affected. That's how I keep everything straight.
