R33
+V
75
D1
C10
R12 R20 R19 C3 C11 4700u
1N4148
274 68k 10n 0.1u
100
D2
Q2
1N4148
R13
Q7
MPSA56
U? 1k
MPS8599
LM7812CT
3 1
OUT IN
Q8
MPSA56
G
Q? Q? Q? Q?
C?
N
R11 D
10k
1500u
2
MJ11016 MJ11016 MJ11016 MJ11016
R?
RT1
511
R23 R24 R25 R26
R? C8 5k@25c L1 2.5uH
0.27 0.27 0.27 0.27
R? 4.99k 0.1u
10M Q4
Q3
R9 C? R22 R31
MPS8599
MPS8599
C? 33.2k 5u 75k 4.7
Q? R14
R27 R28 R29 R30
2N4341 R
R? 0.27 0.27 0.27 0.27
5u R32
200
C9 idle 4.7
MPS8599 30p curr.
R?
MPS8599
100k Q5
Q6
C14
C7
C5 Q? Q? Q? Q?
R?
C6
10k
47n
10n
100u 0.47u
MJ11015 MJ11015 MJ11015 MJ11015
Q9
R10
MPSA06
49.9k
D3
1N4148
Q10
MPSA06
R11
D4
100k
dc out offset
1N4148
R17
R15
R16
33.2k
R18
1.5k 681k
274k
R21 C4 C13 C12
10n 0.1u 4700u
100
R34
-V
C? 75
10n
MDA3502
D?
T? regolare bias x 1 V di caduta
R? su queste resistenze (=10A) F? per il dr3b non VHC togliere 2 coppie di finali
RV? e togliere due resistenza da 0.4 Ohm per ogni ramo
+V
VARISTOR il bias si regola a 1.5v di caduta (7.5 A)
0.1 25A i condensatori di filtro da 30 a 20 mF
C? (4//0.4) C?
C? 30mF 30mF C? C? C?
10n 4.7u 0.47u 10n
C?
10n
Federico Paoletti
C? C? C? C? C? C?
10n 30mF 30mF 4.7u 0.47u 10n Title
R? F?
Classe DR3 Very High Current (VHC)
-V
Size Document Number REV
0.1 25A
B dr3_vhc.sch
(4//0.4)
Date: February 26, 2003 Sheet of