VOLTCRAFT VLP OVP FRONT BOARD CIRCUIT Diagram
H
\\Sonodata\shinde\Project\VLP series power supplies\NEW VLP with OVP\PCB and CKT\VLP - OVP PCBs
From TXFR
Control Winding
For Main O/P
From TXFR
DPM Winding
G
From TXFR
DPM Winding
'G'
To Base Drive
On H/S PCB
'H'
100 OHMS Sense
TO BC640
EMITER
F
E
CN3
3
2
1
CON3
FROM TXFR 15V SUPPLY
D
4321
THERMAL SWITCHTH1
1
2
CN12 CON2
D1
390E,1/2W
S1J
R3
R4
10K
R1
C10
OT LED
V1
220uF/35V
C18
D2
S1J
D3
AC3
S1J
AC4
100uF/16V
D4
AC5
S1J
AC6
100uF/16V
BDB
C SENB
-6VB
IC2 7815
Vin
GND
2
2
GND
Vin
IC3 7915
4K7
LD1
1000uF/16V
R2
220E,1/2W
R15
100E
C5
R16
100E
C6
Vout
C24
10uF/25V
C23
10uF/25V
Vout
3
3
Z4
9.1
Z5
9.1
+15V
1MFD,63V
2N5551
Z1
6.2V
CN5
CON2
C29
CN4
1
2
+ve
1
SUPPLY TO DVM
2
-ve
+ve
SUPPLY TO DCM
-ve
CN1
3
2
1
CON3
AC2 AC1
CN14
1
2
CON2
CN13
2
1
CON2
3
2
CN2
1
CON3
S1J
AC7
1
D8
C22
1000uF/25V
C21
1000uF/25V
D14
AC8
1
S1J
R5
4K7
P3
1K5,1%MFR
R7
100K
IC1
LM336
P1
IC4B
8
6
-
5
+
LM1458
C11
10KPF
33K
C14
R6
4K7
Z3
12V
R8
100K
PT4
16
CC CONTROL
50K
17
R18
R19
220E
100KPF
R27
100E
D15
1N4148
47K
R23
100K (CERMET)
100K (CERMET)
(TO OVP SETTING TRIMPOT)
R26
10K 1%
25 P.P.M.
P4
33K
R45
R30
820E
R31
6K8
R36
R29
10K
22K
C28
10K
IC6B
R40
R32
10K 1%
C27
25 P.P.M.
1N4148
D16
1uF/100V
7
1MFD
LM358
PT2
CC LED
10KPF
+12
33K
R10
1K5
PT3
CV LED
S1J
R9
D12
C12
C7
100uF/16V
1N
R39
C9
R20
OPEN
12K
LM1458
2
-
1
3
+
R11
4
IC4A
3K3
D13
S1J
R13
470E
C13
P2
220E
R14
C2
820E
NR
R52
180E
Z2
18V
C4
OPEN
Z6
15V
1uF/100V
S2
1
PT104
20K
S1
1
H
D51N4002
G
R28
68K
C16
10KPF
C25
C17
10KPF
220uF/100V
OVP VOLTAGE
INDICATION SWITCH
SW3
S12
1
SW3
SW_SL_DPDT
CCNCNCNO
OVP CH-A/OVP
LD2
LED
R12
1K5
S1J
8
6
5
S1J
7
+
D11
D10
1
1
D9
R37
3K3
T1
6V2
R38
10K
BC846
RLB
RL-1P2T
2
3
SW2
SW_SL_DPDT
5K51
1
+
IC6A
4
LM358
R50
47K
CCNCNCNO
P6
OPB+
OPB-
R48
R49
NC
NO
8K2
R46
OE
R47
68K
R51
220E
NO
CN7
To O/P +VE Terminal
1
2
To O/P -VE Terminal
CON2
CH-A
RLA
RL-1P2T
CN11
1
2
CON2
DVMB+ DVMB-
CN10
+
1
2
-
CON2
DCMB- DCMB+
CH-A
F
+
DVM
-
E
+
DCM
-
D
+VCC (3-6)
D6
AC9
CN6
3
2
1
From TXFR
C
(3-6V) Control Winding
AC10
VCC1
S1J
3-6 SEC C
C1
220/16
D7
S1J
1
S3
TO 3-6V CAP +VE
B
A
1 2 3 4
C19
100n
PT1
50K
R17
39K
VLP 2403PRO (OVP) CH-A
VLP 2403PRO (OVP) CH-A
IC5
12
11
LM723
V
VCC
R22
R21
27K
5K6
V OUT
6
V REF
LM723
5
N.I.
V-7COMP
13
R44
4K7
10
2
CL
3
CS
4
INV
OPEN
R24
C20
15K
T3
1K
2N5551
R25
P5
2K2
C3
1n
R35
220E
R33
1K
R34
OPEN
C8
47uF/25V
T2
2N5551S
R43
15K
R42
4K7
R41 8K2
CCNCNCNO
SW1
SW_SL_DPDT
NO
3-6V PUSH SWITCH
LD3
SW3 (4P2T) (CH-A OVP)
OVP CH-A 3-6V
C15
10n
C26
10n
Title
CIRCUIT DIAGRAM OF VLP OVP FRONT BOARD
Number RevisionSize
A2
Date: 4-Jul-2018 Sheet of
File:
SIL/16/0
3-6B+
3-6B -
CN9
WAGO3
CN8
1
2
3
1
2
STM2
Drawn By:
T102
Mounted on
TIP31
The Heatsink
TO
OUTPUT +VE
(3 - 6V)
TO
OUTPUT -VE
(3 - 6V)
00
AMEND
--
PRASAD
C
B
A
D
\\Sonodata\shinde\Project\VLP series power supplies\NEW VLP with OVP\PCB and CKT\VLP - O
SECONDARY
WINDING
C
From
(TO -VE TERMINAL)
B
FROM TXFR
RELAY SUPPLY
WINDING
TXFR
Sec AC (3-6)
CT (3-6)
Sec AC (3-6)
GND (3-6V)
CN5
4321
To CN2 (PIN1) on front board (base drive)
TO (-6V) SUPPLY OF CH-A (CN2) PIN3
CN6
*
1S35
RL2A
*
1S36
*
1S37
*
1S38
*
1S51
*
1S52
1S53
1S54
C13 0.22uF/100V
*
*
0.22uF/100V
RL1A
PARALLEL PROVISION
C15
D3A
1N5402
D4A
1N5402
OF PBPC 1003
D14
4A03
D15
4A03
D16
4A03
D17
4A03
C2 2200uF/16V
REC DC
3300 MFD/63V
C8
8K2,1W
R17
123
BASE DRIVE
(for VLP1405 OVP)To 'H' point of CN2 (PIN2) on front control (current sense)
S651S62
1
V3
TIP31
BC 640
T1
1K2
R26
10K
R21
Single PIN
Direct Solder
R22
D6
4A03
S63
V4
3773
3773
1
R29
NR
0.22E,5W
Left Heatsink Tobu Right Heatsink Tobu
R27
100E
R28
100E
From Thermal Switch CH-A
CN7
1
CN3
1
2
2
S661S67
1
0.33E, 5W MOR
R18
O/P-
O/P+
1
from (S3) (PIN 1 of CN9)
2
3
CN2
BASE
1
S59
1
S58
1
S57
*
1
TO +VE TERMINAL (3-6V)
S56
*
1
OUTPUT +VE (MAIN) CH-A
S44
S43
*
OUTPUT -VE (MAIN) CH-A
1
* = Male Spade
D
V6
TIP31
C
OUTPUT -VE SENSE CH-A
O/P -SENSE
R43
R44
O/P +SENSE
6
-
5
+
LM358
8
U10B
7
D10
S1J
R45
3K3
C10
IC3
7815
+15V
R49
1K5
C18
100KPF
R32
1K5
R31
12K
R33
10K
10uF/25V
C19
R34
12K
R35
5K6
R39
10K
D9
S1J
RL1B
T2
2N5551
R41
2K7
R40
4K7
R42
10K
100K
C20
56K
10uF/25V
S1J
2
U10A
-
3
+
LM358
4
R36
12K
R37
1
3K3
R38
Z6
Z7
S1J
6.2V
100K
D8
RLSEC+
2
1
D7
S1J
470uF/35V
CN4
1
OUTPUT +VE SENSE CH-A
2
R47
10K
D11
RL2B
V5
2N5551
S1J
R46
100K
Z8
6.2V
B
1
2
GND15V +
A
1 2 3 4
CN1
Relay Supply
CN8
1
2
LD1
POWER ON LED
Title
A4
Date: 4-Jul-2018 Sheet of
File:
CIRCUIT DIAGRAM OF VLP OVP HEATSINK BOARD
Number RevisionSize
SIL/16/0
Drawn By:
00
A
AMEND
--
PRASAD
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