RC-Monster Forums - View Single Post

BrianG · 03.04.2008, 03:16 PM

What is the "rule of thumb" regarding the minimum rpm a sensorless motor has to turn for the ESC to get the proper back-EMF signals? Something like kv * 0.1?

I want to try to include this calculation in my top speed estimator to notify the user that they are geared too high for proper ESC operation...

	(#439)
BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	03.04.2008, 03:16 PM What is the "rule of thumb" regarding the minimum rpm a sensorless motor has to turn for the ESC to get the proper back-EMF signals? Something like kv * 0.1? I want to try to include this calculation in my top speed estimator to notify the user that they are geared too high for proper ESC operation...