View Single Post
  #10   Spotlight this post!  
Unread 25-06-2005, 07:33
Venkatesh Venkatesh is offline
Registered User
FRC #0030
 
Join Date: Jan 2003
Rookie Year: 2002
Location: USA
Posts: 260
Venkatesh is a splendid one to beholdVenkatesh is a splendid one to beholdVenkatesh is a splendid one to beholdVenkatesh is a splendid one to beholdVenkatesh is a splendid one to beholdVenkatesh is a splendid one to beholdVenkatesh is a splendid one to beholdVenkatesh is a splendid one to behold
Re: Spike Control Line Signals

I just borrowed a 2002 Blue Spike and measured the current required to switch the relay forward at 5.5V (supply issues). I found that the spike needed 85 mA to switch, which is way out of line with anyone's measurements from here. I also found that just powering the spike required 42 mA. I don't think the IFI controller is using just the PIC to drive the relays, but instead probably a number of relay drivers.

I checked the numbers many times. Any ideas?
__________________
-- vs, me@acm.jhu.edu
Mentor, Team 1719, 2007
Team 30, 2002-2005