參數資料
型號: ISL6269
廠商: Intersil Corporation
英文描述: Single Phase PWM Controller for Mobile Graphical Processing Unit (GPU)
中文描述: 單相PWM控制器,移動圖形處理單元(GPU)
文件頁數: 16/17頁
文件大?。?/td> 395K
代理商: ISL6269
16
FN9177.0
June 14, 2005
The compensator zero
fz1
is written as:
R
comp
C
comp2
The compensator pole
fp1
is written as:
comp1
comp2
The compensator gain is written as:
comp
comp1
The compensator transfer function is written as:
p1
FIGURE 6. SYSTEM CONTROL BLOCK DIAGRAM
G
VOVC
(s)
G
COMP
(s)
V
COMP
V
o
V
REF
T(s)=G
COMP
(s) + G
VOVC
(s)
+
FIGURE 7. OPEN LOOP TRANSFER FUNCTION
10
100
1
.
10
3
1
.
10
4
1
.
10
5
1
.
10
6
40
20
0
20
40
60
80
100
120
150
120
90
60
30
0
30
60
90
Gain (Gvovc)
Phase (Gvovc)
Vcomp to Vo Transfer Function Gvovc(s)
Frequency (Hz)
G
P
FIGURE 8. CLOSED LOOP TRANSFER FUNCTION
10
100
1
.
10
3
1
.
10
4
1
.
10
5
1
.
10
6
40
20
0
20
40
60
80
100
120
30
15
0
15
30
45
60
75
90
Gain (Tv)
Phase (Tv)
Voltage Loop Gain T(s)
Frequency (Hz)
G
P
ω
z1
-------------------------------------------
=
(EQ. 19)
f
z1
ω
π
---------
=
(EQ. 20)
ω
p1
---------------------
---------------------
+
comp
-----------------
=
(EQ. 21)
f
p1
ω
π
---------
=
(EQ. 22)
ω
i
comp2
]
-----------------------------------------------+
=
(EQ. 23)
G
comp
s
( )
ω
i
----------------------------------
1
---------
+
s
1
---------
+
=
(EQ. 24)
FIGURE 9. SYSTEM CONTROL BLOCK DIAGRAM
+
COMP
FB
R
COMP
C
COMP1
C
COMP2
R
BOTTOM
V
REF
ERROR
AMPLIFIER
ISL6269
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