RoboSavvy Forum

Technical Question on Servo's

2007-02-25T18:01:09+01:00

Thanx Jon

Again, thats what I'd been thinking but good to have someone confirm it.

I was fairly certain that the 5.0V is used to supply the circuitry while the signal is just interpreted for the movement required etc.... From my observations with a scope, the PWM seemed to be around the 5V level even though the voltage was up at 10.8

Hopefully what I want to achieve should be do-able. I'll order the servo's and start chopping early in the week.

Statistics: Posted by PaulP — Sun Feb 25, 2007 6:01 pm

Technical Question on Servo's

2007-02-25T13:59:58+01:00

PaulP,

The only critical thing that you need to ensure is that the two power sources (logic supplying the signal, and power for the servo) have a common ground.

- Jon

Statistics: Posted by JonHylands — Sun Feb 25, 2007 1:59 pm

Technical Question on Servo's

2007-02-25T02:03:59+01:00

Thats more or less what I want to achieve, I've seen some Hitec HS55's going cheap and they are the ideal size for what I want to do.

Thanx for that...

Statistics: Posted by PaulP — Sun Feb 25, 2007 2:03 am

Technical Question on Servo's

2007-02-25T00:46:09+01:00

Hi Paul,

I'm certainly no expert on servos, but I have connected them as the diagram shows. I was running the servo at 9Vdc instead of the 4.8 from the receiver. This was in a small robot with the servos modified for continuous rotation.

I see no reason it wouldn't work going the other direction with the voltage.
Gary

Statistics: Posted by gdubb2 — Sun Feb 25, 2007 12:46 am

Technical Question on Servo's

2007-02-25T00:17:17+01:00

I have one of the HV robots, 10.8V...

If I wanted to run another make of servo alongside these, for example a micro servo in a DOF that didnt need the high torque, would it work if I rerouted the Supply(Red) from a 5V regulated supply instead but still pick up the PWM and Ground from the original place???

Statistics: Posted by PaulP — Sun Feb 25, 2007 12:17 am