RoboWanabe
Member
Hi i need help with a problem.
Im using a 12v input with a Lm7805 voltage regulator to supply 5v to my pic microcontroller.I need help choosing the de-coupling capacitor. The choice of capcitors from maplins are:
Metallised Polyester Film Capacitors: 0.068uf,0.01uf,0.1uf,0.022uf,0.33uf,0.22uf,1uf and 2.2uf
Could some one please also maybe explain where the AC ripples come from? I have 2 motors and 1 servo running in the circuit but they run of a diffrent 12v supply. But both these supplys share a common ground?
PLEASE EDUCATE ME!! lol
Thank you.
Im using a 12v input with a Lm7805 voltage regulator to supply 5v to my pic microcontroller.I need help choosing the de-coupling capacitor. The choice of capcitors from maplins are:
Metallised Polyester Film Capacitors: 0.068uf,0.01uf,0.1uf,0.022uf,0.33uf,0.22uf,1uf and 2.2uf
Could some one please also maybe explain where the AC ripples come from? I have 2 motors and 1 servo running in the circuit but they run of a diffrent 12v supply. But both these supplys share a common ground?
PLEASE EDUCATE ME!! lol
Thank you.