Comparison of stepper motor with DC servo
motor :
Comparison between AC and DC servo systems
Comparison of stepper motor with DC servo motor Video:
sr. No.
|
Stepper motors
|
DC servo motor
|
1.
|
Control winding is
not present.
|
Control
wingding
is
present
|
2.
|
Stepping
rate is
governed by
frequency of switching and not by supply voltage.
|
Does not rotate in
steps.
|
3.
|
Number of steps can
be precisely controlled by controlling the number of pulses.
|
DC servo motor
gives continuous rotation.
|
4.
|
Brushes are absent.
|
Brushes are present
|
5.
|
Maintenance is low
|
High maintenance
|
6.
|
Due
to
load/no
load
conditions no
change in running current.
|
Due
to
load/no
load
conditions
sufficient
change
in running
current.
|
Comparison of stepper motor with DC servo motor Video: