Datasheet

SLUU166A - December 2003 − Revised February 2004
24
UCC39002 Advanced Load-Share Controller User’s Guide, HPA027A
R
EAO
+ 10 W
Actual resistor value used:
R
EAO
+ 10 W
A bode plot of the load share open loop gain frequency response and comparing it to the original gain frequency
response of the individual module is shown in Figure12:
G
ERRORAMP
(f) + G
M
ǒ
1
s(f) C
EAO
) R
EAO
Ǔ
G
LSOPENLOOP
(f) +
20 log
ǒ
Ť
G
CSA
(f)
Ť
Ǔ
) 20 log
ǒ
Ť
A
V
Ť
Ǔ
) 20 log
ǒ
Ť
A
ADJ
Ť
Ǔ
) 20 log
ǒ
Ť
G
ERRORAMP
(f)
Ť
Ǔ
G
TOTAL
(f) + G
LSOPENLOOP
(f) ) G
MODULE
(f)
100 1000 10000 100000
−80
−60
−40
−20
20
60
80
0
40
GAIN
vs
FREQUENCY
Frequency − Hz
Gain − dB
G
MODULE
(f)
G
TOTAL
(f)
G
LSOPENLOOP
(f)
Figure 13. Load Share Open Loop Gain Frequency Response