Not enough info for me to weigh in with any kind of certainty. I do know from personal experience that if you use solid state switches to control motor operation by applying a pulse train (PWM) rather than continuous voltage control that will generate big spikes as the inductance of the motor opposes the current change inherent in the pulse rise-time. This is mitigated by slowing the rise-times sufficiently that the L di/dt product is manageable.
on 12/13/01 9:04 AM, [email protected] at [email protected] wrote: > > From: Cecil A. Gittens > > > All ...... specifically Senior EMC Team Members. > > I am having a problem on the power control board, in the motor control > ckt. when we turn the motors on. > > This condition creates significant noise spike on my entire ground plane, > along with the other power ckts, this needs to be cleaned up for signal > integrity issues, even more then EMC reasons at this time. > > Anyone can feel free to stop in and give me some ideas. > > Best regards, > > Cecil > > > > > ------------------------------------------- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ > > To cancel your subscription, send mail to: > [email protected] > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Michael Garretson: [email protected] > Dave Heald [email protected] > > For policy questions, send mail to: > Richard Nute: [email protected] > Jim Bacher: [email protected] > > All emc-pstc postings are archived and searchable on the web at: > No longer online until our new server is brought online and the old messages > are imported into the new server. > ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: [email protected] Dave Heald [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
