IR3081A International Rectifier Corp., IR3081A Datasheet - Page 25
IR3081A
Manufacturer Part Number
IR3081A
Description
Xphasetm Vr 10 Control Ic
Manufacturer
International Rectifier Corp.
Datasheet
1.IR3081A.pdf
(39 pages)
- Current page: 25 of 39
- Download datasheet (2Mb)
CURRENT SHARE LOOP COMPENSATION
The crossover frequency of the current share loop should be at least one decade lower than that of the voltage loop
in order to eliminate the interaction between the two loops. A capacitor from SCOMP to ground is usually enough
for the share loop compensation. Choose the crossover frequency of current share loop (f
crossover frequency of voltage loop (f
Where F
Page 25 of 39
C
MI
SCOMP
is the PWM gain in the current share loop,
=
. 0
65
F
MI
*
R
=
PWMRMP
R
(
PWMRMP
V
I
−
V
*
PWMRMP
V
*
I
*
C
I
PWMRMP
C),
O
*
−
and determine the C
G
V
V
CS
DAC
O
∗
*
_
ROOM
2
)
f
π
SW
( *
∗
V
*
I
f
V
*
CI
−
PWMRMP
R
V
*
LE
DAC
. 1
*
05
1 [
)
*
+
10
SCOMP
2
π
6
*
f
CI
,
*
C
E
( *
V
O
I
O
)]
*
F
MI
(40)
(
41)
CI
IR3081A
1/31
) based on the
/05
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