View Single Post
  #95   Spotlight this post!  
Unread 12-09-2014, 04:31
Aren Siekmeier's Avatar
Aren Siekmeier Aren Siekmeier is offline
on walkabout
FRC #2175 (The Fighting Calculators)
Team Role: Mentor
 
Join Date: Apr 2008
Rookie Year: 2008
Location: 대한민국
Posts: 735
Aren Siekmeier has a reputation beyond reputeAren Siekmeier has a reputation beyond reputeAren Siekmeier has a reputation beyond reputeAren Siekmeier has a reputation beyond reputeAren Siekmeier has a reputation beyond reputeAren Siekmeier has a reputation beyond reputeAren Siekmeier has a reputation beyond reputeAren Siekmeier has a reputation beyond reputeAren Siekmeier has a reputation beyond reputeAren Siekmeier has a reputation beyond reputeAren Siekmeier has a reputation beyond repute
Re: 2015 Beta Testing - The Components are Here.

I have a few questions about the PCM and the 20A fuse. Others have expressed concern that the VRM and the PCM paired up on this fuse could approach 20A, and that this endangers the entire system since the radio will presumably be powered off of a 5V or 12V output. It sounds like Alpha teams did not have issues with this; we've yet to hear from Beta teams.

So while a single PCM and a single VRM may not be an issue, what about the possibility of more than one of either of these components. While needing 2 VRMs worth of voltage-regulated current is unlikely, it's totally reasonable to expect teams to want more than 8 solenoid channels for their pneumatic system. So here are the questions:

-Has there been any testing with multiple VRMs or PCMs on the designated, fused output? Does this present a significant risk of blowing the fuse and losing radio power?

-If this is the case, are there other options for powering additional VRMs/PCMs? Would a 20A breaker slot on the PDP be enough to protect their circuitry, and might this be included as an option in the 2015 rules? If someone has seen spec sheets for these components, please share them.

Last edited by Aren Siekmeier : 12-09-2014 at 04:57.
Reply With Quote