Hello, I have seen a large number of stationary robots and I think it would be great to have a DC power supply from the wall outlet directly to the cortex. This allows those robots to have a constant power supply without having to worry about battery life affecting all the operations of the robot.
If this has been done before, could someone point me to it?
This would be very easy to make. Just buy a 7.2 V- 8V DC power adapter and put a tamiya plug on it. Parts would cost less than $10. (ok, maybe not $10 if you want to be running a lot of current i.e. lots of motors)
Lots to choose from. You can narrow them down by search parameters. None of them have quite as high of current as you would probably need for a full robot. But would work very nice for general testing of components/subsystems.
Be careful, you will ned a lot of instantaneous current if you want to reproduce what your batteries are capable. It might be good for general work, but when it comes time to put in control loops, or just auton in general, move back to batteries.
Thanks for all the replies, everyone. It totally slipped my mind how high the current draw would be on the system with that many motors all trying to start up at once. Those little 393s sure do pack a wallop for LRC.
I’ll examine the situation a bit more, then. Thanks.