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Unread 06-01-2017, 01:26
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Munchskull Munchskull is offline
CAD Designer/ Electrical Consaltant
AKA: Anthony Cardinali
FRC #0997 (Spartan Robotics)
Team Role: CAD
 
Join Date: Jan 2013
Rookie Year: 2013
Location: Corvallis, OR
Posts: 532
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Designing out brownouts?

Going into my fifth and final year of FRC I am looking to push my team into new and unfamiliar areas. For me that starts with a strong drive train. These last few years my team has been usings and exploring custom gearboxes but every one has had 4 cims. This year game permitting I hope to have 6 cims.

While using JVN calc for speeds I am unnerved by what each motor is drawing at stall, 60-80amps each. Easily enough to blow the main breaker if held for more than a moment.

We use Victor SP motor controllers for the drive train, can we implement current control to prevent this? Also for the none programmer I am could the pseudo code be explained?

Also can anyone explain to me the exact correlation between high current draw and voltage drop?
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“In theory, theory and practice are the same. In practice, they are not.” ― Anonymous
Anthony Cardinali
4th year of FRC
Class of 2017



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