IR3088AM IRF [International Rectifier], IR3088AM Datasheet - Page 20

• Manufacturer Part Number: IR3088AM
• Description: XPHASETM PHASE IC WITH FAULT AND OVERTEMP DETECT
• Manufacturer: IRF [International Rectifier]

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 20 of 34
C
MI
SCOMP
is the PWM gain in the current share loop
=
. 0
65
C
C
C
R
R
F
CP
MI
CP
CP
FB
FB
*
1
1
R
=
=
=
=
=
=
PWMRMP
R
2
2
R
2
(
2
π
π
FB
V
PWMRMP
π
π
I
∗
∗
∗
∗
∗
−
f
f
2 (
K
K
C
f
C
V
f
C
*
C
PWMRMP
π
∗
∗
V
∗
1
∗
1
R
R
I
*
∗
K
K
*
CP
C
FB
∗
I
PWMRMP
∗
C),
L
O
R
C
E
*
CP
−
and determine the C
∗
FB
G
V
V
C
CS
DAC
V
O
E
O
∗
*
_
∗
∗
ROOM
2
)
f
π
f
SW
K
( *
C
∗
)
V
2
*
I
f
V
*
∗
CI
−
V
R
,
PWMRMP
V
*
PWMRMP
LE
DAC
. 1
*
05
1 [
)
*
+
10
SCOMP
2
π
6
*
f
CI
,
*
C
E
( *
V
O
I
O
)]
*
F
MI
(37)
(38)
(39)
(40)
(41)
(43)
(42)
IR3088A
CI
9/30
) based on the
/04