Hi
I have a motor contol design for a 4pole motor 4800 rpm but my control seem to be limiting the speed to 300-500rpm
I have followed the app note AN1625 and using a integrator circuit. I can adjust vspeed voltage via a pot. but this does not change the speed much.
I have set my Tpulse to 282us
RCOFF parts are is 1nf and 33k.
my integrator is a 5v signal rail with the feedback of 1meg and a 220nf cap. A 5.6k / 1.8k resistor divider on the output. which feed Vref of the L6235.
what am i doing wrong. do i need to ajust my resistor network?
regards
Ross
