>> ... Does anyone have any experience with creating an Atmel based motor >> controller? > > I've done a simple BLDD driver with a ATMega8535 (on a BX-24p). I did > it with three PWM phases, which yielded very slow slow low-torque > rotation. Getting speed from a BLDD requires feedback, I think you'll > find. I have RC aircraft ESC's for brushless motors that claim to be sensorless and they are running at 10-20KHz with very respectable torque. So unless I'm misunderstanding what you are saying, it is indeed possible to create fast and powerful controllers without sensors. ??? DLC -- Dennis Clark > > Tom > > > > > > > Yahoo! Groups Links > > > >
Message
Re: [AVR-Chat] Sensorless Brushless motor control using back-EMF Feedback
2007-05-03 by dlc@frii.com