Hiwin D1 - Bode Plot

Operation Principles D1 Servo Drive User Manual
3-12 HIWIN MIKROSYSTEM CORP.
MD20UE01-2109
3.6.2 Bode plot
Figure3.6.2.1 The gain margin and phase margin in Bode plot
As figure 3.6.2.2, the bandwidth of Bode plot is at -3 dB.
Figure3.6.2.2 The bandwidth of Bode plot
0 dB
-3 dB
Bandwidth
Gain (dB)
f
40
20
0
-20
-40
-60
-360
0
-90
-180
-270
Gain crossover
g

p

Phase crossover
Gain margin
Phase
margin
)()( dBjG

(deg)
)
(

j
G

sec)
/
(
rad

sec)
/
(
rad
