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DIPIPM+ Series Application note
3.1.2 Interface Circuit (Direct Coupling Interface example for using one shunt resistor)
Fig.3-1-2 shows a typical application circuit of interface schematic, in which control signals are transferred directly
input from a controller (e.g. MCU).
Prevention circuit
for inrush current
X
Y
R3
C1 D1 C2
+
+
+
R3
C5
R3
C5
R3
C5
5V
R2
R3
C5
R3
C5
R3
C5
5.1kΩ
15V
VD
+
C1
C2
D1
Long GND wiring might generate noise to input signal
and cause IGBT malfunction
Fig.3-1-2 Interface circuit example in the case of using with one shunt resistor
Publication Date: September 2016
P1(1)
N1 (2)
N(B) (3)
V
(4)
NC
LVIC
AIN (5)
C5
V
(6)
P1
V
(7)
UFB
V
(8)
HVIC
UFS
V
(9)
VFB
V
(10)
VFS
V
(11)
WFB
V
(12)
WFS
U
(13)
P
V
(14)
P
W
(15)
P
V
(16)
P1
C2
U
(17)
N
LVIC
V
(18)
N
W
(19)
N
Fo (20)
V
(21)
OT
CIN (22)
C4
CFo (23)
V
(24)
N1
V
(25)
NC
B
R1
Long wiring might cause SC level fluctuation
and malfunction
A
Control GND patterning
30
R (36)
S (35)
T (34)
B (33)
Brake
Resistor
X
P (32)
U (31)
V (30)
M
+
C3
W (29)
NU (28)
NV (27)
Long wiring might cause short
circuit failure
NW (26)
C
D
Y
Shunt resistor
N1
Power GND patterning
AC input
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