Been working on an AC servodrive using a microchip dsPIC microcontroller and an IRF IRAMS powerstage.
Got the motor spinning for the first time, see pics below (an entry to 'worlds ugliest servodrive' contest perhaps ? :cheers: )
this is basically a realization of microchips application note AN1017
http://ww1.microchip.com/downloads/e...tes/01017A.pdf
when the code is tidy enough to release I will post it here or on my website.
When I'm moderately happy with this rough looking prototype I will have to make a nicer board, hopefully everything fits on an 100x160mm eurocard.
btw. anyone know how big a 0.3 - 0.5 C/W heatsink needs to be ? forced air-cooling with a fan ?
AW