pranav
India
Asked
— Edited
Resolved by jstarne1!
I need to provide external power for the servos as I'm using a lot of them. Can any one suggest any voltage regulator for the external supply of voltage and how do I connect them to the servos. Does anyone have some images of the wiring that would guide me...
Which voltage regulators shall provide the juice for the servos? I have four servos in each arm of the robot. Shall I use one voltage regulator for each arm?
Hey Pranav , I am happy to help. What voltage do your servos get their max power? Some are optimized for 4.8-5 volts , 6 volts or even 7.2-7.4 volts. Once we know we can go from there. - Josh
Also what battery are you using?
Hey Josh,
I'll be using the servos at 5v itself. I'm using a 12v lead-acid battery.
That tutorial is really useful... But I would like to know, is it just one servo per voltage regulator or can we control mltiple servos with one regulator. I was thinking about using LM317 or LM338 which can be constructed to deliver 5v at 1.5A and 5A respectively. How much current does each servo take? Can I use those voltage regulators?
@pranav , yes you can get higher amperage capabilities by connecting them all in parallel. , you can get 5 volt regulators in 5amp current capability. Then connect two in parallel to get 10amp capability. Make sense?
Sorry I couldn't follow up... My doubts are:
What is the amperage that the servos can take?
Can I use LM317 or LM338 for the external supply? If so, how many servos can I drive with each voltage regulator.
Major Problem: I popped out my LM1084. Would it just affect the +5V supply or wold it even affect the logic supply. If I start supplying external voltage for the servos and take the logic supply from EZ-B, would they be working without the lM1084 on the EZ-B?
Servos can use different amount of current. What servos do have to power and I can better answer that question?
I'm using four servos in each arm of the robot. One each at the arm, the elbow, the fist and the claw. So the servo at the arm has more load on it to bear the weight of the remaining three servos in the hand. So it needs more juice...