__________________________________________________________________________________________________________________________________________________________
15
19. DIAGRAM
LM385-2.5
VR1
R8
1K5
1/4 LM324
A1
R11
4K7
R9
1K
MJ3001
T7
C2
4700u/35V
D8
1N5400
BC547B
T3
R1
47K
R2
27K
R6
270K
BC547B
T2
1/4 LM324
A2
R7
10K
R26
1M
R27
1K
R31
2.2/0.6W
1/4 LM324
A3
-
+
E1
6/12V
R14
10K
14
12
13
1/4 LM324
A4
R25
12K
R17
1M
R18
680
R19
15K
R21
10K
R15
33K
R22
220K
AC
AC
VOLTAGE REGULATOR
CURRENT LIMIT (0.1C)
I<0.02C
Vo
→
7.35
→
6.85
Vo
→
14.7
→
13.6
I<0.007C
END OF
CHARGE
D4
1N5400
D5
1N5400
D7
1N5400
D6
1N5400
0.7V
130mV
50mV
LD4
LED3G
R28
2K2
11
4
2
3
1
10
9
8
7
5
6
C1
2u2
R3
120K
SW2
12V
6V
R30
1.8/0.6W
R29
1.5/0.6W
SW1
OPEN: < 4Ah (Imax=0.3A)
CLOSE: > 4Ah (Imax=1A)
R23
2K2
LD3
LED3Y
BC557B
T6
BC547B
T1
R4
180K
R5
10K
LD2
LED3R
R24
2K2
BC547B
T5
D1
1N4148
BC547B
T4
R10
10K
R13
10K
D3
1N4148
R12
1K
D2
1N4148
LD1
LED3R
CHARGE
WRONG POLARITY
END OF CHARGE
CHARGE
FLOAT
LEAD-ACID BATTERY
A1...A4 = IC1
18V/1.3A
R16
10K
R20
10K
