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16. Schematic diagram.
SK1
+V
GND
SK2
-
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D1
D2
+V
VR1
UA78L05
1N4007
I
O
D3
D4
GND
C6
C1
100n
470µF/25V
GND
GND
GND
+V
C3
100n
GND
8
3
1
IC1A
2
LM393
4
GND
R1
Vref
30K 1%
R2
2K2 1%
C5
10Á
6
Vref
7
IC1B
GND
GND
5
Schematic diagram
+V
+V
+V
R4
1K
T2
BC547
C2
R3
100n
T1
100
T3
GND
BC557
D5
GND
1N5822
GND
L1
330µH
SK3
A (+)
R5
SK4
2K2
R7
R6
C (-)
C4
1E0
1E0
68p
0,6W
0,6W
GND
GND
- 9 -
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