Circuit diagram

1 2 3 4
A
B
C
D
4321
D
C
B
A
Title
Number RevisionSize
A4
Date: 4-Jul-2018 Sheet of
File:
\\Sonodata\shinde\Project\VLP series power supplies\NEW VLP with OVP\PCB and CKT\VLP - O
Drawn By:
C15
0.22uF/100V
C8
3300 MFD/63V
R17
8K2,1W
R21
1K2
R22
0.22E,5W
V3
TIP31
V4
3773
D7
S1J
C10
470uF/35V
C18
100KPF
R31
12K
R32
1K5
R33
10K
R34
12K
R35
5K6
-
2
+
3
1
4
U10A
LM358
D8
S1J
R38
100K
R36
12K
R37
3K3
Z6
S1J
Z7
6.2V
D9
S1J
R39
10K
RL2A
RL1B
RL1A
RL2B
T2
2N5551
R40
4K7
R41
2K7
R42
10K
R43
100K
R44
56K
D10
S1J
D11
S1J
R46
100K
R45
3K3
R47
10K
Z8
6.2V
V5
2N5551
-
6
+
5
7
8
U10B
LM358
CIRCUIT DIAGRAM OF VLP OVP HEATSINK BOARD
SIL/16/0
00
PRASAD
IC3
7815
AMEND
--
C20
10uF/25V
D14
4A03
D15
4A03
D16
4A03
D17
4A03
C19
10uF/25V
R49
1K5
LD1
POWER ON LED
T1
BC 640
R26
10K
D6
4A03
SECONDARY
WINDING
FROM TXFR
RELAY SUPPLY
WINDING
TO (-6V) SUPPLY OF CH-A (CN2) PIN3
OUTPUT +VE (MAIN) CH-A
OUTPUT -VE (MAIN) CH-A
OUTPUT -VE SENSE CH-A
OUTPUT +VE SENSE CH-A
1S35
1S36
1S37
1S38
1
S43
1
S44
RLSEC+
+15V
O/P +SENSE
O/P -SENSE
O/P+
O/P-
BASE DRIVE
REC DC
1S51
1S52
1S53
1S54
D3A
1N5402
C13 0.22uF/100V
D4A
1N5402
C2 2200uF/16V
Sec AC (3-6)
CT (3-6)
Sec AC (3-6)
GND (3-6V)
From
TXFR
PARALLEL PROVISION
OF PBPC 1003
(TO -VE TERMINAL)
1
S59
1
S58
1
S57
1
S56
R18
0.33E, 5W MOR
V6
TIP31
TO +VE TERMINAL (3-6V)
BASE
1 2
CN1
Relay Supply
1
2
3
CN2
from (S3) (PIN 1 of CN9)
1
2
CN4
1
S65
1
S62
1
S63
R29
NR
3773
R27
100E
R28
100E
1
S66
1
S67
1 2
CN3
Left Heatsink Tobu Right Heatsink Tobu
(for VLP1405 OVP)To 'H' point of CN2 (PIN2) on front control (current sense)
Single PIN
Direct Solder
* = Male Spade
*
*
*
*
*
*
*
*
*
*
*
To CN2 (PIN1) on front board (base drive)
GND15V +
1
2
CN5
1 2 3
CN6
1 2
CN7
From Thermal Switch CH-A
1 2
CN8