View Single Post
  #39   Spotlight this post!  
Unread 04-05-2012, 12:57
MrForbes's Avatar
MrForbes MrForbes is offline
Registered User
AKA: Jim
FRC #1726 (N.E.R.D.S.)
Team Role: Mentor
 
Join Date: Feb 2006
Rookie Year: 2006
Location: Sierra Vista AZ
Posts: 6,039
MrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond repute
Re: Non-FRC Motor Controller?

The electrical energy going into the speed controller goes out to the motor, and some of it is dissipated as heat by the MOSFETs.

The motor does mechanical work (that's the whole point of having a motor), and it also gets warm.

To size the speed controllers you need to figure out how much mechanical work you need to do. Then you can select motors based on the rpm/torque requirements, and look at the current requirements and then select speed controllers.