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Circuit diagram

ManualsBrandsEA ELEKTRO-AUTOMATIK ManualsLaboratory & Bench PSUsBench PSU (adjustable voltage) EA-3048B 0 - 30 Vdc 5 A 150 W No. of outputs 2 x
12
1 2 3 4
A
B
C
D
4321
D
C
B
A
Title
Number RevisionSize
A4
Date: 12-Mar-2004 Sheet of
File: \\Henter\engineer\
彭燕枢
\EA-3048.ddb Drawn By:
BR1
KBP1003
D1 1N4007
D5
1N4148
D3
1N4148
+
-
IC1B
LM358
RL1
12VDC
RL2
12VDC
R1
0.01R
R2
510K
R3
5.1K
R4
12K
R15 0.01R
R14
470R
R12
390K
R13
3.3K
R16
22K
C5
10uF
C8
470uF/35V
C7
4700uF/63V
D4 1N5819
1
V+
8
V-
4
+
-
IC1A
LM358(ST)
R6
47K
R10
56K
R9
3K
R7
75K
R8
1K
C10
47uF
1
2
3
4
CZ2-1
C9
100nF
ACout
DC+out
ACout
DC-out
TR1
0~230V
TR3 30V~
S2
0.8A/250V
S1
F1
3A/250V
ACin
ACin
NTC1 5R
GND
C1
2.2nF/250V
C2
2.2nF/250V
VCC
D2
1N4007
C4
10nF/1KV
R5 47K
C6
22nF
S3
GND
GND
GND
R11
330R
C3
470nF
RL3
12VDC
D6-9
1N4007
GND
VR3
2K
VR1
2K
VR4
2K
VR2
500R
D10
1N4007
D11
1N4007
VCC
GND
D12
1N4148
GND
GND
GND
GND
VCC
1
2
CZ4-1
1
2
CZ4-2
1
2
CZ3-1
1
2
CZ3-2
EA-3048B
12V
TR2
35320148_VP_02

Summary of content (2 pages)