Hi,
My robot is slowly building up and im learning alot about electronics by doing it (which is a good thing).
I've made a circuit for powering the picaxe board from an AC adapter using the example within the AXE020 manual to save on batteries. It uses a regulator which seems to do the job fine.
Anyway, soon my robot will require a second power supply connected to the project board to power the motors and a servo etc etc.
I would like to try and keep everything on V2 (apart from the microcontroller). Is it ok to maybe use a 12v rechargable battery (the sort model air craft might use), then connect that to my project board, but use a regulator between some components?
For example... 12v to motors....but then have a regulator to limit the power to 4.5-5v for a range sensor etc?
Reason I ask is that the regulators get very hot, and this seems like a big waste of energy from batteries which you want to last as long as possible.
I've seen various batteries about (rechargable) which are around 12v 1200mah , which I assume means it can provide 1200ma for 1 hour @ 12v? (or did i misunderstand this?).
Would using resistors be a better approch as the input on v2 is a known voltage?
Another question I have is about amps... if you have 12v at 1A (for example) and a device only requires 10ma.... it will be fine I assume? Aslong as the V is correct?
Im sure these are very basic questions in the world of electronics!
Thanks!!
My robot is slowly building up and im learning alot about electronics by doing it (which is a good thing).
I've made a circuit for powering the picaxe board from an AC adapter using the example within the AXE020 manual to save on batteries. It uses a regulator which seems to do the job fine.
Anyway, soon my robot will require a second power supply connected to the project board to power the motors and a servo etc etc.
I would like to try and keep everything on V2 (apart from the microcontroller). Is it ok to maybe use a 12v rechargable battery (the sort model air craft might use), then connect that to my project board, but use a regulator between some components?
For example... 12v to motors....but then have a regulator to limit the power to 4.5-5v for a range sensor etc?
Reason I ask is that the regulators get very hot, and this seems like a big waste of energy from batteries which you want to last as long as possible.
I've seen various batteries about (rechargable) which are around 12v 1200mah , which I assume means it can provide 1200ma for 1 hour @ 12v? (or did i misunderstand this?).
Would using resistors be a better approch as the input on v2 is a known voltage?
Another question I have is about amps... if you have 12v at 1A (for example) and a device only requires 10ma.... it will be fine I assume? Aslong as the V is correct?
Im sure these are very basic questions in the world of electronics!
Thanks!!