Re: Power supply tutorial? (kinda long)

Power supply chip manufactures also provide complete and
working schematics with their data sheets AND in application
notes. Battery recharging is also an IC solution. Power
supply chips are from TI, National, Linear, ON Semi, and so
many others. Maxim/Dallas Semiconductor also sells power
supply and voltage monitoring ICs. Again - all manufacturers
provide schematics in data sheets or application notes.

Mark Haase wrote:
> I'm looking to build a power supply for a mobile robot. I want to build
> a battery-based supply that can recharge the battery when plugged into
> the wall while supplying power for the robot at the same time. The long
> range goal is for the robot to find a base station when its batteries
> are low and recharge itself, then continue doing whatever it was doing.
>
> Problem is, most of my electronics knowledge is in logic. ...
>
> I understand the basics of rectifying AC. It looks like I need to use a
> step-down transformer, a bridge rectifier, and a large electrolytic to
> smooth? ...
>
> Another question: I need 5V regulated for my logic circuits. ...
>
> And ripple current is okay for motors, right? If not, how do I
> regulate enough current to power a motor with a 1A stall?
>
> I'm also interested in learning about safety guidelines when working
> with AC. ...
>
> Finally, if the power supply needs to power the robot and recharge the
> batteries at the same time, do I need to do anything special? ...
> ...
.