With sleeker computers comes the reduction of ports. Multi usb adapters have become an absolute necessity for people nowadays as hardware devices that need plugging in are increasing while the number of ports of modern computers is decreasing. I would highly discourage combining the power from multiple USB ports, again that's playing with fire.We have all the latest wholesale 12v usb hub for car on, one of the world's largest platforms for wholesale shipment listings. Perhaps you could power the separate coils from separate USB ports. It's been a while since I had to work on motors at university but I can recall that there can be more than one magnetic coil in the motor. Rather than trying to combine the power from multiple USB ports see if you can't split the load. If you need to boost the voltage then the USB port needs to supply enough power to make the motor happy and make up for losses in the booster circuit. Check the USB port to see if it is able to supply enough power for your motor. If it's under 10 watts then you might be able to buy or build a booster circuit that supplies 12 volts from a single USB port. Simply running the motor on 5 volts may be an option.Ĭheck the power consumption of the motor. Running it on 5 volts could let some smoke out. How your motor would respond depends on how it's built. Running motors at voltages lower than their rated voltage is practically routine.
It's not "obvious" to me that a 12 volt motor cannot be run from a 5 volt supply. It's certainly possible to get power safely from multiple USB ports but this will not be cheap or easy. Unpredictable as in you could see smoke come out of something. There are Y-cables out there that will take power from two USB ports to get around this power limit on USB ports but this violates the USB spec and so can have unpredictable results. Another possible result is smoke coming out of something. The most likely result is the computer shutting down to protect itself.
#Internal car 12v multi port usb hub series
This would be especially so for putting USB ports in series to get more voltage, the ports almost certainly share a ground and connecting the ground of one USB port to the +5V of another USB port is just going to short circuit the power supply. Trying to connect multiple USB ports together to get more voltage or current is playing with fire. Most computer makers though allow at most 7.5 watts from their USB ports before some over current protection kicks in, with lower maximum power ratings also possible. As an example Apple has been doing this since they introduced their USB 2.0 iPods. With the trend for people using USB to power devices I've seen USB ports getting "amped up", some supplying 12 watts like the power bricks so many people use to charge up their cell phones and tablet computers. There's ample USB power bricks that are rated to supply 12 watts but I suspect you are trying to get this power from a USB port on a computer. This provides 10 watts maximum, and that's about all you can expect from a USB port.
Here's one example I got from a quick search. There are companies that make USB to 12 volt adapters.
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