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R
load
=
0.5
o
hm
R
s1
=
1
R
s2
=
5 mohm
L
s1
=
4
L
s2
=
100 nH
R
a1
=
100
R
a2
=
100
R
a3
=
10
R
b1
=
10
R
b2
=
10 mohm
L
a1
=
1
L
a2
=
1
L
a3
=
1
L
b1
=
10
L
b2
=
10 nH
C
a1
=
10
C
a2
=
10
C
a3
=
1000
C
b1
=
1000
C
b2
=
1000
µ
F
6
96.6
Hz
5
2.06 degrees
Stability Analysis Tool
Notepad Area for JFW050A Module
Please enter the circuit parameters below
Gain crossover frequency:
Phase Margin:
Phase of the Loop Gain
-180
-120
-60
0
60
120
180
100 1000 10000 100000
Frequency (Hz)
Phase (deg)
Magnitude of the Loop Gain
-60
-40
-20
0
20
40
100 1000 10000 100000
Frequency (Hz)
Gain (dB)
Click to Calculate Stability
C
a1
L
S1
R
S1
R
a1
R
L
DC/DC
CONVERTER
L
a1
C
a2
R
a2
L
a2
SENSE
L
S2
R
S2
C
b1
R
b1
L
b1
C
a3
R
a3
L
a3
C
b2
R
b2
L
b2
Fig. 5. Voltage-loop-response Bode plot with phase margin and gain crossover
frequency calculated and displayed.
R
load
=0.5
o
hm
R
s1
= 1 R
s2
= 5
mohm
L
s1
=
4
L
s2
=
100
nH
R
a1
= 100 R
a2
= 100 R
a3
= 10 R
b1
= 10
R
b2
= 10
mohm
L
a1
= 1 L
a2
= 1 L
a3
= 1 L
b1
= 10
L
b2
= 10
nH
C
a1
= 10 C
a2
= 10 C
a3
= 1000 C
b1
= 1000
C
b2
= 6800
µ
F
399.5
Hz
42.8
degrees
Stability Analysis Tool
N
otepad Area for JFW050A Module
Please enter the circuit parameters below
G
ain crossover frequency:
Phase Margin:
Phase of the Loop Gain
-180
-120
-60
0
60
120
180
100 1000 10000 100000
Frequency (Hz)
Phase (deg)
Magnitude of the Loop Gain
-60
-40
-20
0
20
40
100 1000 10000 100000
Frequency (Hz)
Gain (dB)
Click to Calculate Stability
C
a1
L
S1
R
S1
R
a1
R
L
DC/DC
CONVERTER
L
a1
C
a2
R
a2
L
a2
SENSE
L
S2
R
S2
C
b1
R
b1
L
b1
C
a3
R
a3
L
a3
C
b2
R
b2
L
b2
Fig. 6. Voltage loop response Bode plot when C
b2
=6800 µF