Datasheet

SLUU166A - December 2003 − Revised February 2004
18
UCC39002 Advanced Load-Share Controller User’s Guide, HPA027A
The results of this gain-frequency measurement are approximated in the following equation and plotted in
Figure 10:
G
MOD
(f) + 10
65
20
1 ) s(f)
ǒ
1
2 p 1100 Hz
Ǔ
ƪ
1 ) s(f)
ǒ
1
2 p 10000 Hz
Ǔ
ƫ ƪ
1 ) s(f)
ǒ
1
2 p 200 Hz
Ǔ
ƫ
2
where:
f + 100 Hz, 200 Hz, 50 kHz
s(f) + j 2 p f
G
MODULE
(f) + 20 log
ǒ
Ť
G
MOD
(f)
Ť
Ǔ
Q
MODULE
(f) + arg
ǒ
G
MOD
(f)
Ǔ
180
p
100 1000 10000 100000
−50
0
50
100
GAIN
vs
FREQUENCY
Frequency − Hz
Gain − dB
Figure 11. Gain-Frequency Mathematical Approximation of the PT4484 Module