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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

 

 

 

 

Summary of Contents for K8012

Page 1: ...enance cycle Status indicators for charge float and end of charge Protected against polarity reversal Simply connect and forget Specifications Charge current 0 3 or 1A selectable Power supply 2x9V 25V...

Page 2: ...d 2 3 Aranciato Laranja Naranjado Oranssi Orange Orange Orange Orange Orange Orange Oranje 3 4 Giallo Amarelo Amarillo Keltainen Gul Gul Gul Gelb Yellow Jaune Geel 4 5 Verde Verde Verde Vihre Gr n Gr...

Page 3: ...y when cutting excess leads hold the lead so they can not fly towards the eyes Needle nose pliers for bending leads or to hold components in place Small blade and phillips screwdrivers A basic range i...

Page 4: ...______________________________________________________________________ 4 1 3 Soldering Hints Mount the component against the PCB surface and carefully solder the leads Make sure the solder joints are...

Page 5: ...2 1 q R3 120K 1 2 0 3 1 q R4 180K 1 8 0 3 1 q R5 10K 1 0 3 B q R6 270K 2 7 0 3 1 q R7 10K 1 0 3 B q R8 1K5 1 5 2 B q R9 1K 1 0 2 B q R10 10K 1 0 3 B q R11 4K7 4 7 2 B q R12 1K 1 0 2 B q R13 10K 1 0 3...

Page 6: ...ch the polarity D CATHODE q D1 1N4148 q D2 1N4148 q D3 1N4148 q D4 1N5400 1N5408 q D5 1N5400 1N5408 q D6 1N5400 1N5408 q D7 1N5400 1N5408 q D8 1N5400 1N5408 5 IC SOCKET Watch the posi tion of the notc...

Page 7: ...ON ON 10 ELECTROLYTIC CAPACI TORS Watch the polarity C q C1 2 2 q C2 4700 35V 11 POWER TRANSISTOR M4 NUT M4 BOLT LOCK WASHER TRANSISTOR HEATSINK PCB q T7 MJ3001 MJ4035 BDX87 2N6057 2N6058 2N6059 2N628...

Page 8: ...f the holes with a center punch Remove the label and drill the holes Pay attention to the correct di ameter Make sure all holes are free of burrs Degrease the front panel be fore sticking the label on...

Page 9: ...upplied 33 5W resistor to the output terminals Measure the voltage across the resistor It should read 14 7V 0 2V N AC ON L AC POWER AC Vdc K8012 ACCU 7 3V 6V 4Ah 33 Put SW2 in the 6V position put SW1...

Page 10: ...ly and pay special attention to resistor values Use Perform the necessary settings before you hook up the battery to the unit Select the appropriate charge current and voltage according to the capacit...

Page 11: ...nd of the charging cycle when the charge cur rent has dropped significantly the output voltage is dropped to 13 6V 6 85V for a 6V battery This allows the battery to remain hooked up to the charger wit...

Page 12: ...W1 SW2 R31 R30 R29 LD1 LD2 LD3 LD4 C1 D1 D2 D3 T1 T2 R5 R4 R6 R2 R1 T5 T6 R18 R17 R28 R21 SK2 R14 R10 D8 6 12V 4Ah END OF CHARGE CHARGE STANDBY POLARITY WRONG ACCU VELLEMAN P8012 1 LEAD ACID BATTERY C...

Page 13: ...__________________________________________ 13 17 DRILL PATTERN ENCLOSURE TKAUS22G CUT 3 5 3 5 3 5 3 5 3 5 3 5 3 5 3 5 12 5 73 38 133 5 90 13 24 5 9 BOTTOM 3 3 3 3 6 5 6 5 1 2 20 25 5 10 10 11 17 5 17...

Page 14: ...5 AC R8 b e c c SK1 R3 VR1 T3 R9 R13 R11 R12 T4 R26 R27 R24 R23 R15 R22 R7 R19 IC1 1 D5 D4 C2 D7 D6 SW1 SW2 R31 R30 R29 LD1 LD2 LD3 LD4 C1 D1 D2 D3 T1 T2 R5 R4 R6 R2 R1 T5 T6 R18 R17 R28 R21 SK2 R14 R...

Page 15: ...K 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...

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