Thread: Need example for using optoisolator & FET
View Single Post
  #3   Spotlight this post!  
Unread 10-02-2014, 10:01
Dan Oelke Dan Oelke is offline
FTC #5926 (The Things)
FRC #3023 (Stark Industries)
Team Role: Mentor
  
Join Date: Nov 2011
Rookie Year: 2011
Location: Otsego, MN
Posts: 19
Dan Oelke is an unknown quantity at this point
Re: Need example for using optoisolator & FET
The rules on FTC are much more limiting. We have to use a prototype board for things that aren't part of the standard control system. And that board has limited power it can source.

I don't think a relay will work, because I have only about 12mA @ 12V (or 20mA @ 5V) that I can use to drive the coil. I can get some mini relays that are in that range, but then I can drive only 1 at a time and we would like to do several.