7
Schematic diagrams
Figure 14.
STDES-EMETER1PV1 circuit schematic (1 of 8)
9V
3V3_ALT
5V
PD3_GPIO_EN
PD4_GPIO_MODE
ISO_GND
R30
8.2K
R29
8.2K
D9
STTH108
1
2
L8
1mH
U6
INS21662687
LDK220U33R
OUT
1
IN
3
G
N
D
2
G
N
D
4
C58
2.2nF,220V
C68
22uF
C23
100nF
T1
1
4
3
2
8
7
6
5
R50
100E
J9
CON1_NEUTRAL
1
+
C63
470uF
D14
STPS1150
C54
47uF,400V
L21
CHOKE CM
2
1
3
4
C53
4.7nF,25V
C65
100nF
R31
100E
C66
22nF/X2
U10
STBB1
VIN
5
VINA
8
EN
6
P
G
N
D
3
FB
10
G
N
D
9
MODE/SYNC
7
VOUT
1
S
W
2
2
S
W
1
4
ExPad
11
R27
1.3E
D15
STPS1L60A
U5
A
L
T
A
IR
0
4
-9
0
0
T
R
S
O
U
R
C
E
1
S
O
U
R
C
E
2
V
C
C
3
G
N
D
4
IR
E
F
5
Z
C
D
/F
B
6
C
O
M
P
7
N
A
8
N
A
9
N
A
1
0
N
A
1
1
N
C
1
2
D
R
A
IN
1
3
D
R
A
IN
1
4
D
R
A
IN
1
5
D
R
A
IN
1
6
R51
100K
+
C25
2.2u,25V
R28
1K
R8
33K
L22
2.2uH
R18
51K
R4
6.8M,1W
D23
Green
R32
1K
C59
470nF
D7
STPS1L60A
D16
STPS1150
C55
5F
RV1
460V
2
1
R10
0
+
C57
470uF
J10
CON1_PHASE
1
NTC2
16E,2.4W
C61
470uF
L20
470uH
U9
UABF1510-3
Plus
1
Minus
3
AC1
2
AC2
4
+
C24
1000uF
D8
P6KE200A
1
2
NTC1
16E,2.4W
C60
1nF,50V
R65
560K
5V_ALT
ISO_GND
VCC
LOCAL_GND
N
E
U
T
R
A
L
_
M
A
IN
P
H
A
S
E
_
M
A
IN
ISO_GND
VCC
ZCD
CMP
ISO_GND
LOCAL_GND
CMP
ZCD
LOCAL_GND
NEUTRAL_MAIN
5V_ALT
ISO_GND
PHASE_MAIN
9V
5V_ALT
IS
O
_
G
N
D
IS
O
_
G
N
D
5V_ALT
PD3_GPIO_EN
IS
O
_
G
N
D
PD4_GPIO_MODE
IS
O
_
G
N
D
5V
IS
O
_
G
N
D
3V3_ALT
UM2898
-
Rev 1
page 13/31
UM2898
Schematic diagrams
