From: <khajaminha...@gmail.com> Reply-To: "beagleboard@googlegroups.com" <beagleboard@googlegroups.com> Date: Tuesday, June 17, 2014 at 8:50 PM To: "beagleboard@googlegroups.com" <beagleboard@googlegroups.com> Cc: <khajaminha...@gmail.com> Subject: [beagleboard] Re: help regarding BLDC motor interfacing with beagleboneblack
> All ICs I found, have fixed frequency with variable duty cycle. I think > programmable frequency with variable duty cycle is must to drive BLDC motor. > Is that right? > Can you please suggest one IC. If you want to control BLDC motor, why not use C2000 controller. It is low cost and specifically designed for this purpose. http://www.ti.com/lsds/ti/microcontroller/32-bit_c2000/c28x_piccolo/overview .page http://www.ti.com/lsds/ti/apps/motor/applications.page Regards, John > > > > On Wednesday, 18 June 2014 01:25:39 UTC+5:30, jmelson wrote: >> >> >> On Tuesday, June 17, 2014 5:14:00 AM UTC-5, khajam...@gmail.com wrote: >>> Hi jmelson ! >>> I am making my own cape. >>> I have found one PWM controller (TLC59116) from TI >>> http://www.ti.com/lit/ds/symlink/tlc59116.pdf >>> but it says individual channels are adjustable but with a fixed frequency >>> of 97 khz. Would that be enough or adjustable frequency is a must feature >>> for BLDC motor. >>> >>> >> 97 KHz may work for some motor drive setups, but that frequency may be so >> high that the power transistors or driver circuits will >> run hot. You'd have to look at specific power stages to decide whether 97 >> KHz is suitable or not. Most motor drives run between >> 20 and 50 KHz. >> >> Jon > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to beagleboard+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
