In-car USB Hub
In-car USB Hub
I'm after installing a 4-port USB hub, but don't want a cigarette lighter powered one.
Does anyone have the technical savvy to suggest ways to power it (ie direct from car battery)?
Cheers
Paul.
newdriftking
18-08-2018, 03:16 AM #1Hi Guys,
I'm after installing a 4-port USB hub, but don't want a cigarette lighter powered one.
Does anyone have the technical savvy to suggest ways to power it (ie direct from car battery)?
Cheers
Paul.
IS200 Sport - Sold
Mazda 6 MPS - Zoom Zoom!
Modifications
Completed:
Currently 280bhp/295lbft; 3" Meercat custom exhaust; KW Suspension; FMIC; SSP; HPFP; Custom Stainless Steel Dials - for the moment, the only set in the world!! (Till the group buy for MPSOC anyway :lol: )
In Progress:
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I'm the first to admit I'm useless with this stuff, but from what I understand the cig lighter is essentially just a 12V power supply, so you could splice into the power cable of say the stereo instead? I'm not sure how much of a pain it would be to run power cables direct to the battery itself though
IS200 Sport - Sold
Mazda 6 MPS - Zoom Zoom!
Modifications
Completed:
Currently 280bhp/295lbft; 3" Meercat custom exhaust; KW Suspension; FMIC; SSP; HPFP; Custom Stainless Steel Dials - for the moment, the only set in the world!! (Till the group buy for MPSOC anyway :lol: )
In Progress:
E-Tuning remap ongoing via Cobb Accessport; Braided brake lines; Stubby aerial; Tinted repeaters and sidelights; 3 Port Boost Control Solenoid; 3" HTP Intake
I am interested though... Why do you need a 4 port USB hub in your car?
![[Image: tempsig2.jpg]](http://i121.photobucket.com/albums/o227/84stoney/tempsig2.jpg)
ad: It was a tough call to make, but the Supercharged IS200 is being retired. ad:As Dave said, get a cig lighter powered one, cut off the plug and splice it in to any 12v source. Cig lighter and stereo are obvious ones in that area. You must also decide if you want a permanent supply, or one that is switched with the ignition. Running a cable direct to the battery is not hard, and is probably what I would do. If you remove the battery and plastic tray below it, there is a big grommet that goes directly through to the passenger footwell, with many wires through it already. This is also how you get power cables from the battery to amps in the car/boot. ALWAYS FIT A FUSE - somewhere on the +ive feed.
I am interested though... Why do you need a 4 port USB hub in your car?
ad: It was a tough call to make, but the Supercharged IS200 is being retired. ad:
Like stoney says don't forget to fuse it. And you will need four 280ohm resistors across the USB connector or your device might not recognise that it is plugged in to a charging device.
Mitsubishi Lancer Evolution X GSR SST FQ-300 (White Pearlescent)
![[Image: sm78015.jpg]](http://www.lancerregister.com/car_register/images/sm78015.jpg)
You can chop down the 12v in two ways, using a very cheap method by using a 5v voltage regulator and a capacitor, this basically reduces the voltage by burning off what it doesn't need so generates a lot of heat. The othe method is to use an IC which requires a lot more components to create a circuit and is generally only for low power consumption devices (using 500mA). If you search the web there are circuit diagrams for what you need.
Like stoney says don't forget to fuse it. And you will need four 280ohm resistors across the USB connector or your device might not recognise that it is plugged in to a charging device.
Mitsubishi Lancer Evolution X GSR SST FQ-300 (White Pearlescent)
Buy a cigarette lighter one, unscrew the cigarette lighter bit (they generally unscrew as they have an inline fuse in them) and run some wires from it onto the back of your cigarette lighter. Job jobbed.
The only reason I can think of is for charging - stereos don't support hubs as a rule.
Buy a cigarette lighter one, unscrew the cigarette lighter bit (they generally unscrew as they have an inline fuse in them) and run some wires from it onto the back of your cigarette lighter. Job jobbed.
toxo Buy a cigarette lighter one, unscrew the cigarette lighter bit (they generally unscrew as they have an inline fuse in them) and run some wires from it onto the back of your cigarette lighter. Job jobbed.
As I mentioned, pretty simple really. Thou I just plug one in the cig lighter when I very occasionally need to.
ad: It was a tough call to make, but the Supercharged IS200 is being retired. ad:toxo Buy a cigarette lighter one, unscrew the cigarette lighter bit (they generally unscrew as they have an inline fuse in them) and run some wires from it onto the back of your cigarette lighter. Job jobbed.
As I mentioned, pretty simple really. Thou I just plug one in the cig lighter when I very occasionally need to.
ad: It was a tough call to make, but the Supercharged IS200 is being retired. ad:The circuit diagram is very easy to follow and all you need is a couple of capacitors as shown below:
![[Image: 7805-w-caps-schem.jpg]](http://tigoe.net/pcomp/img/7805-w-caps-schem.jpg)
To connect to a USB socket, connect the +5V to pin 1, and 0V (or ground) to pin 4. You then need to connect four resistors to the other two pins. One from +5V to pin 2 and another from pin 2 to ground. Then do the same for pin 3 (one from +5V to pin 3 another from pin 3 to ground). I found that you probably don't need the reisitors for most devices, but my Iphone wouldn't recognise that it was plugged into a charging device without them.
If you do build these I would recomend using a heat skink attached to the voltage regulator as they get very hot when in use.
I hope this helps, but it is probably easier to buy some cheap car USB chargers, hack them up and install them where you want.
Mitsubishi Lancer Evolution X GSR SST FQ-300 (White Pearlescent)
Having a quick look on google you can find lots of circuit diagrams. The most popular voltage regulator is a 7805, which produces a 5V output, generally most produce a maximum current of 0.5A (which is what most cheap in-car chargers will use). I found that charging an Iphone you need to supply the phone with at least 0.75A, so a voltage regulator so I have used a 1A version.
The circuit diagram is very easy to follow and all you need is a couple of capacitors as shown below:
To connect to a USB socket, connect the +5V to pin 1, and 0V (or ground) to pin 4. You then need to connect four resistors to the other two pins. One from +5V to pin 2 and another from pin 2 to ground. Then do the same for pin 3 (one from +5V to pin 3 another from pin 3 to ground). I found that you probably don't need the reisitors for most devices, but my Iphone wouldn't recognise that it was plugged into a charging device without them.
If you do build these I would recomend using a heat skink attached to the voltage regulator as they get very hot when in use.
I hope this helps, but it is probably easier to buy some cheap car USB chargers, hack them up and install them where you want.
Mitsubishi Lancer Evolution X GSR SST FQ-300 (White Pearlescent)
valo I hope this helps, but it is probably easier to buy some cheap car USB chargers, hack them up and install them where you want.
This was my initial suggestion. Your way, though it would work, seems overly complicated, especially if you are not very familiar with electrics!
ad: It was a tough call to make, but the Supercharged IS200 is being retired. ad:valo I hope this helps, but it is probably easier to buy some cheap car USB chargers, hack them up and install them where you want.
This was my initial suggestion. Your way, though it would work, seems overly complicated, especially if you are not very familiar with electrics!
ad: It was a tough call to make, but the Supercharged IS200 is being retired. ad:2 Guest(s)
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