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Old 01-21-2019 | 08:25 PM
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Bry195
Tech Master
 
Joined: Jul 2018
Posts: 1,011
From: Florida
Default Capacitors

has anyone logged peak current before and after an upgrade in capacitors?

we dont appear to use enough capacitors to do anything but filtering. Im not suggesting anything im just curious. When developing very high speed motors that are continuously accelerating and decelerating capacitors (the size of the ESC) are designed into the system to capture the regenerated energy (braking) and then return most of it to the next acceleration cycle. I can calculate the amount of regen energy to determine the capacitor size but I’d like to see if anyone has a before and after current log? It couldnt be a log from the ESC it would have to be from something like the eagle tree placed before the capacitors on the battery side.

what it does is minimize the peak load on the battery and minimizes the peak regen to the battery. Looking at the log that first monster jump in current is very minimal. You would also not see the current spikes when transitioning quickly from one rate to another.

I dont think you would notice it in motor performance other than slightly more efficient transitions. The battery wouldnt be pushed into its continuous rating as often.
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