Datasheet

VL _ total FB PWM _ PS EA
G ( f ) G ( f )G ( f )G ( f )=
(118)
( )
20
VL _ totaldB VL _total
G ( f ) log G ( f )=
(119)
1*10
4
f - Hz
-150
100
G
VL_totaldB
(f)
CLOSED LOOP VOLTAGE TRANSFER
FUNCTION
-50
0
50
10 100 1*10
3
0
20
40
60
80
100
10.10.01
-100
qG
VL_total
(f)
Gain
Phase
UCC28019A
SLUS828B – DECEMBER 2008 – REVISED APRIL 2009 .................................................................................................................................................. www.ti.com
The total closed loop transfer function, G
VL_total
, contains the combined stages and is plotted in Figure 32 .
Figure 32. Closed Loop Voltage Bode Plot
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