Digilent 410-106P - Manual (Page 3)

PmodHB5 Reference Manual Digilent, Inc.
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motor. If a pulsed motor is used for an
extended time, heat dissipation systems may
be needed to prevent damage to the motor.
Because of these effects, PWM is best used in
high-torque infrequent-use applications such
as airplane flap servos and robotics.
PWM circuits can also create radio frequency
interference (RFI) that can be minimized by
locating motors near the controller and by
using short wires. Line noise created by
continually powering up the motor may also
need to be filtered to prevent interference with
the rest of the circuits. Placing small ceramic
capacitors directly across the motor terminals
and between the motor terminals and the
motor case can be used to filter RFI emissions
from the motor.
For more information see
www.digilentinc.com .