USB-UPS

moosepr · Post by **moosepr** » Wed Apr 12, 2017 12:24 pm

Slightly random question, but does anyone know of a device that can give like a 60 second power buffer for USB devices?

I have 2 TV's running pi's for media playing duties. The HDMI allows the control pass through, so when I ask the pi to shut down the TV goes off, the problem comes from me powering the pi from the USB port on the back of the TV. I am convinced the power is getting cut before the pi has totally shut down, but I have had no issues with corrupted cards yet.

I know I could use external power. But that's another cable to run

onesojourner · Post by **onesojourner** » Wed Apr 26, 2017 8:16 am

Could you use a big capacitor?

moosepr · Post by **moosepr** » Wed Apr 26, 2017 9:03 am

onesojourner wrote: ↑
Wed Apr 26, 2017 8:16 am
Could you use a big capacitor?

I was thinking that really, but wasnt sure on the execution of it

onesojourner · Post by **onesojourner** » Wed Apr 26, 2017 9:14 am

I have read a little bit about it for another project but I have no real world experience.

USB-UPS

USB-UPS

Re: USB-UPS

Re: USB-UPS

Re: USB-UPS

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