Hi,
Thank you for the reply, I don't think I made it clear enough on what I'm looking to achieve, sorry.
I'd like to keep the apple tv on all the time, in use or in standby, but when the car is on, to draw power from it and when off, to draw power from the backup battery pack (this will charge up when the car is on).
I was looking to use a relay to switch between the 2 power sources, but at the point of the switch, there will be a period when the connection is broken.
I'm not sure how quick the relay will flip and if this will affect the operation of the apple tv, but I was thinking of using a capacitor in the circuit as a buffer so that when the relay flips, during the period of no contact, the apple tv will draw its power from the capacitor.
I assume the flip will be in ms, but even if it takes 2sec's, I was hoping the Cap will provide the power required and thus being uninterrupted?
I could just be making all this up as I'm no expert
, but that's the theory.
The end result being the apple tv constantly powered, but in standby when not in use, and when the engine is on to draw its power from the car, and when the engine is off, to draw from my backup battery pack.
I hope this has cleared up any misunderstandings.
Your help will be greatly appreciated.
Thank you,