I'm designing a multi-component system for a walking device and want to use a centralized unit to power the four joint motors. Each distributed unit needs a 12V DC signal to power the onboard components (arduino, solenoid, encoder, etc.).
I feel like having the four distributed units in parallel will greatly reduce the amount of current I can draw from the central power unit. Is it possible to use a single 12V DC power unit (connected to a wall socket or maybe a rechargeable battery pack) to power all four of the devices? It'd be nice to be able to use something like this with a splitter.
If this isn't the best option, what alternatives should I consider?