Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: boyb on July 02, 2008, 06:43:37 PM

Title: $50 robot - Servo Protection
Post by: boyb on July 02, 2008, 06:43:37 PM

In the $50 robot, why are there no diodes or h-bridge setup for the servo motor.  Are these components inside of the servo?

Also, can a modified servo go backwards, or just forward motion at different speeds?

Thanks!

Title: Re: $50 robot - Servo Protection
Post by: airman00 on July 02, 2008, 06:52:09 PM

servos have all that built in. Look below , that circuit board converts PWM to rotation angle ( or speed in modified servos)

(http://www.twf8.ws/new/tech/servos/servo1.gif)

Servos go backwards and forwards, this includes modified ones. Different pulses mean diff. directions and diff. speeds