Society of Robots - Robot Forum

Mechanics and Construction => Mechanics and Construction => Topic started by: navbot on February 27, 2011, 03:28:27 AM

Title: Speed control for geared dc motor..
Post by: navbot on February 27, 2011, 03:28:27 AM

 i am using a 12v ,60rpm geared dc motor to drive my robot...can i use the basic pwm program for controlling the geared dc motor speed??

Title: Re: Speed control for geared dc motor..
Post by: joe61 on February 27, 2011, 06:04:15 AM

Quote from: navbot on February 27, 2011, 03:28:27 AM

i am using a 12v ,60rpm geared dc motor to drive my robot...can i use the basic pwm program for controlling the geared dc motor speed??

You can't just send a pwm signal straight to the motor if that's what you're asking. Gear motors are different than servos because you need a motor driver of some kind (servos have drivers built in).

Joe

Title: Re: Speed control for geared dc motor..
Post by: Conscripted on March 01, 2011, 03:22:37 PM

Yes you can use PWM to control the speed of your geared dc motor. You will need something like an H-bridge between your microcontroller and the DC motor to prevent damage to your controller.

Conscripted