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Unread 28-02-2012, 08:29
Unsung FIRST Hero
Al Skierkiewicz Al Skierkiewicz is offline
Broadcast Eng/Chief Robot Inspector
AKA: Big Al WFFA 2005
FRC #0111 (WildStang)
Team Role: Engineer
 
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Re: Jaguars vs Victors

Guys,
You are scaring me and half the population as well. While you are taking the approach of worst case analysis, the common use for these devices is much less than predicted. A good FRC design will generally not choose to run at ~60 amps (the max power power output of the CIM). While short bursts into this range are common, they are not continuous. At 60 amps, the CIM would be dissipating over 300 watts and we know that few teams are burning up their motors or their controllers. So I believe that most teams are running in the recommended normal operating area of 30 amps or less. At this current the temperature numbers seem more in line with experience in the field for both devices using fans.
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Good Luck All. Learn something new, everyday!
Al
WB9UVJ
www.wildstang.org
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Storming the Tower since 1996.
 


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