Quote:
Originally posted by BrianG
Question 3
Last question. The BK Warrior 9920 has a built-in BEC. Does anyone know if it is a linear regulator or switching DC-DC type? The heatsink on that controller looks a bit small and linear BEC regulators create too much heat. Using 12 cells, the 6v regulator power dissipation at 3 amps draw would be about 25 watts! That little heatsink on the controller would barely be enough just for the BEC, let alone the ESC if it was a linear regulator. At any rate, I'll probably upgrade the heatsink on the ESC anyway so I won't need a fan. Hepefully it isn't thermal epoxied on.
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I am almost positive it is a linear regulator. If it were switching, then you would be able to use it for higher cell counts (BK says 12 cells max with BEC). Also, the regulator is on the underside of the controller, and it doesn't contact a heatsink.
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