21
20
12.1 CIRCUIT DIAGRAMS – 145 POWER SOURCE
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D
D
C
C
B
B
A
A
Ti
tle
N
um
be
r
Rev
is
ion
Si
ze
A
3
D
at
e:
2020
/9
/10
Shee
t o
f
Fi
le
:
C:
\U
se
rs
\..
\
主路接
V
1.1.Sch
D
oc
D
ra
w
n
B
y:
C17
C1
C2
C3
PT
C1
V
+
V-
A
B
+24
V
A
1
K
A
2
D
1
A
1
K
A
2
D
2
A
1
K
A
2
D
3
A
1
K
A
2
D
4
R2
R3
2
5
6
1
3
4
T1
o
ut
-
D
17
G
3
E3
E4
G
4
G
2
E2
E1
G
1
R1
15
R1
16
R1
14
R1
13
C4
C5
3W
R43
C84
C83
C82
PE
V
SS
T3
V+
V-
G
C
E
Q
1
IG
BT
G
C
E
Q
2
IG
BT
C85
C86
C87
C88
G
C
E
Q
3
IG
BT
G
C
E
Q
4
IG
BT
R6
D
C-
D
C-
1
D
C+
2
1
3
4
RL
Y
1
V
CC
R5
o
ut
+
-
1
~
2
~
3
+
4
A
C-
L
Ea
rth
1
2
1
2
SW
1
A
C-
N
PE
1
2
CN
201
PLY
DC
-1
Vss
T3-
B
T3-
A
E3
G3
E2
G2
E4
G4
E1
G1
1
2
CN
205
N
TC
1
FA
X
G
N
D
V
C
C
RX
1
+3
V
3
TX
1
CN
502
CN
12
G
N
D
V
C
C
RX
1
+3
V
3
TX
1
D
C+
1
ES
TI
CK
203
E PF
C
ES
TI
CK
PF
C
DC
-
L
-
-
Rs
CN
2
CN
1
PFC
+15
V-2
VSS
VSS
+15
V-2
PFC
NC
IN
PU
T120
V
/230
V
C101
1
2
3
4
L101
R101
C102
CE
1
CE
2
p
e
EM
C
Fig 6 Weldarc 145 Circuit Diagram