I recently bought a little raspberry pi + freenove car kit. The kits instructions are to use two 3.7 V 18650 rechargeable batteries. I have these batteries and everything works fine.
But now I'd like to power the board from a wall outlet instead of using batteries.
The freenove manual says that the shield uses 5.6~11V DC power supply. "If the power supply is beyond this voltage range, it may cause damage to Shield."
I have an AC converter that says it converts AC current to 9V/1A. Here is a link to the convertor on amazon. It seems like this would work as it is between the 5.6V and 11V range, but I wanted to make sure so I didn't destroy the board.
The only other concern I had was that the shield then distributes this power to two voltage regulation systems, both of which are 5V/3A (see the picture below)
If the AC/DC converter is only providing 1amp, I wonder if the regulators will have difficulty providing the 3amps needed by the raspberry.
To me it seems like there wouldn't be enough overall power
9v x 1a = 9w but 5v x 3a = 15w
(i'm still learning about amps, volts, etc, so I might be confused here. Any gentle clarification would be very much appreciated :)