Elec 341 - Nyquist Criteria

1

( )2

sF s

s

1

: 1 ( ) .4 .23

1: 1 ( ) .33

31

: 1 ( ) .4 .23

: ( ) .2 .42

1: 1 ( )

1

1: 1 ( ) 1

11

: 1 ( )1

: ( ) .2 .42

jA s j F s j

j

B s F s

jC s j F s j

j

jD s j F s j

j

jE s j F s j

j

F s F s

jG s j F s j

j

jH s j F s j

j

G

A

CB

D

F

E

H

G A

C

B

D

F

E

H

Elec 341 - Nyquist Criteria

2

𝐾𝐺𝐻 10010

𝑠 1 𝑠 10

GM = ∞ dBPM -20 ωc 30 rad/s

𝐾𝐺𝐻 10010

𝑠 𝑠 1 𝑠 10

GM = n/aPM = n/a ωc 10 rad/s