View Single Post
  #29   Spotlight this post!  
Unread 22-12-2015, 23:52
Munchskull's Avatar
Munchskull Munchskull is offline
CAD Designer/ Electrical Consaltant
AKA: Anthony Cardinali
FRC #0997 (Spartan Robotics)
Team Role: CAD
 
Join Date: Jan 2013
Rookie Year: 2013
Location: Corvallis, OR
Posts: 505
Munchskull is a splendid one to beholdMunchskull is a splendid one to beholdMunchskull is a splendid one to beholdMunchskull is a splendid one to beholdMunchskull is a splendid one to beholdMunchskull is a splendid one to beholdMunchskull is a splendid one to behold
Re: REV Sparks or Vex Victor 888?

Quote:
Originally Posted by Munchskull View Post
One thing that people are forgotten to mention is that the spark motor controller is more linear than the victor 888. That means as a PWM signal increases, the motor will increase at a more constant rate if you are using a spark motor controller.
Just to back up my previous statement. The Spark motor controller has very similar specs to the Jaguar motor controller. Both have a switching frequency of 15.625 kHz and switch using synchronous rectification. Knowing that, it is safe to assume that the Spark motor controller would follow the path of the jaguar on the graph bellow.

My source for this graph.
__________________
“In theory, theory and practice are the same. In practice, they are not.” ― Anonymous
Anthony Cardinali
4th year of FRC
Class of 2017