you can use "constant V/F" or "space vector" approaches to build it!
in open loop V/F constant you should implement a spwm by keepping voltage to frequency constant during startup by using a low cost microcontroller such as atmega64 or better dspic30f2010.
in atmel website or microchip you can find some useful application notes about this topic
you can use "constant V/F" or "space vector" approaches to build it!
in open loop V/F constant you should implement a spwm by keepping voltage to frequency constant during startup by using a low cost microcontroller such as atmega64 or better dspic30f2010.
in atmel website or microchip you can find some useful application notes about this topic
Thanks for fast response. Unfortuanately, I am not familiar with programming of any microcontroller. Anyway, I will go there and check what they have to offer.