View Single Post
  #2   Spotlight this post!  
Unread 19-12-2007, 16:11
=Martin=Taylor= =Martin=Taylor= is offline
run the trap!!!
FRC #0100 (The Wild Hat Society)
Team Role: Human Player
 
Join Date: Feb 2006
Rookie Year: 2005
Location: Bezerkeley, California
Posts: 1,255
=Martin=Taylor= has a reputation beyond repute=Martin=Taylor= has a reputation beyond repute=Martin=Taylor= has a reputation beyond repute=Martin=Taylor= has a reputation beyond repute=Martin=Taylor= has a reputation beyond repute=Martin=Taylor= has a reputation beyond repute=Martin=Taylor= has a reputation beyond repute=Martin=Taylor= has a reputation beyond repute=Martin=Taylor= has a reputation beyond repute=Martin=Taylor= has a reputation beyond repute=Martin=Taylor= has a reputation beyond repute
Re: Torque vs. Speed

Thanks for all the help. I'm pretty sure I understand now.

Quote:
Originally Posted by Hachiban VIII View Post
(apparently they don't like to run at this level or something??.. doesn't really make any sense to me, but then again I'm easily confused by electrical stuff).
What I mean't to say was...

Quote:
Originally Posted by Laura Rhodes View Post
When the operator is running the robot at a mid-joystick position, the Victor
speed controllers pulse the voltage applied to the
motor on and off rapidly (this is called pulse width modulation). This
effectively lowers the average voltage applied to the motor.
The torque and speed curves of the motor look similar at the lower voltages but
maximum no-load speed is slower and the stall torque
(when motor speed is zero) is lower. The Victor speed controllers have
limitations which make trying to control the speed of motors
at low speeds difficult.
I forgot this was how Victors worked. Silly me.
__________________
"Cooperation; because life is a team sport"
-Philip J. Fry