Solar Battery Charger - techlib.com Battery Charger.pdf · A voltage comparator circuit senses the...
Transcript of Solar Battery Charger - techlib.com Battery Charger.pdf · A voltage comparator circuit senses the...
SOLAR/LINE POWERED BATTERY CHARGERFOR
COLEMAN SOLAR PANEL BATTERY CHARGER300mA MAXIMUM OUTPUT
I use nickle-metal-hydroxide rechargeable batteries for many things. The cordless mouse is one of them.Batteries are always ready for use with this constant current charger.
It’s a fun project as it can automatically switch the power source from an unregulated wall-wart to the solarpanel.
How it works: The solar panel is connected to a load resistor. A voltage comparator circuit senses the loadvoltage at about 200mA. When it exceeds the selected voltage level, it switches the charging source fromline to solar. In case of clouds, there is a delay of about 45 seconds before releasing the solar source.
An added feature, which is not necessary, is the Ding Dong chime circuit. This later addition makes theproject even more fun. It is a subtle indication of cloud activity. It audibly indicates the switching action of thecharger.
The battery 1-5 charge rates are selected with switches for fast or slow. Battery 6 has a potentiometer toadjust the rate of charge. This is handy for testing or for heavier duty batteries. Keep in mind that the outputof all charge circuits together must not exceed 300 mA at full sun! A manual switch can disengage the autosensing of the solar panel and keep the wall-wart as the charge source, which may exceed 300 mA-depending on the current rating of the wart.
The LED, located in the sun graphic, is slow-changing red, green, and blue. In auto sense, it only lightswhen there is enough solar voltage. Otherwise, it is on when the charger is on. Another fun indication!
©2013LENNIE ZINK
STRAWS ARE HANDY THINGS!
©2013LENNIE ZINK
It’s been said, “Nothing is as permanent as a temporary thing.” That’s the case with the ugly shelf I built formy computer desk hutch. The Solar Charger is a good companion for my Atmospheric Disturbance Monitor(weather station). The screw driver is handy to adjust the Solar Radiation Monitor. I thoughtlessly moved thepotentiometer when taking photos. It’s easy to adjust, though. See these projects:http://www.geopodium.com/files/Lennie/Lennies%20Corrected%20Lightning%20Detector-2.pdfandhttp://www.geopodium.com/files/Lennie/Solar%20Radiation%20Meter.pdf
©2013LENNIE ZINK
DON’T LET THE NEXT PAGE SCARE YOU. EACH CIRCUIT NEEDS ASCHEMATIC DRAWING AND THERE ARE LOTS OF CIRCUITS!
©2013LENNIE ZINK
1 Ajd
2 Out
3 In
IC1
LM317
GND
R1120R
1 WATT
R33R
1 WATT
SOLAR POWERED BATTERY CHARGER1: 10mA/80mA
CURRENT
VOLTS
A G
R215R
1 WATT
FAST
NORM
14VSOLAR
VOLTAGEDETECTOR
VOLTS
SD11N5818
LM317
ADJ
I O
IC1
SW1
<=18V
SOLAR POWERED BATTERY CHARGER2: 10mA/80mA
GND
R4120R
1 WATT
R63R
1 WATT
CURRENT
VOLTS
B H
R515R
1 WATT
FAST
NORM
14VSOLAR
VOLTAGEDETECTOR
VOLTS
SD21N5818
LM317
ADJ
I O
IC2
SW2
<=18V
SOLAR POWERED BATTERY CHARGER: 0 0mA5 3 /29
GND
R1343R
1 WATT
R153R
1 WATT
CURRENT
VOLTS
E K
R144.3R
1 WATT
FAST
NORM
14VSOLAR
VOLTAGEDETECTOR
VOLTS
SD51N5818
LM317
ADJ
I O
IC5
SW5
<=18V
SOLAR POWERED BATTERY CHARGER3: 5mA10/12
GND
R762R
1 WATT
R93R
1 WATT
CURRENT
VOLTS
C I
R810R
1 WATT
FAST
NORM
14VSOLAR
VOLTAGEDETECTOR
VOLTS
SD31N5818
LM317
ADJ
I O
IC3
SW3
<=18V
300 mA MAX14-24V SOLAR PANEL
CONSTANT CURRENTCHART I=1.25/R
OHM mA
39 3243 2947 2651 2456 2262 2068 1875 1682 1591 14
100 12110 11120 10130 9150 8160 8180 7200 6240 5300 4390 3620 2
1200 1
OHM mA
3.9 3204.3 2904.7 2665.1 2455.6 2236.2 2016.8 1837.5 1668.2 1529.1 137
10 12511 11312 10413 9614 8915 8316 7818 6920 6222 5624 5227 4630 4136 34
#5, #6 #5, #6
#3, #4
#1, #2, #3
#1, #2, #4
SOLAR POWERED BATTERY CHARGER: 0mA4 30/29
GND
R1043R
1 WATT
R123R
1 WATT
CURRENT
VOLTS
D J
R114.3R
1 WATT
FAST
NORM
14VSOLAR
VOLTAGEDETECTOR
VOLTS
SD61N5818
LM317
ADJ
I O
IC6
SW6
<=18V
SOLAR POWERED BATTERY CHARGER: mA6 12-290 ADJUSTABLE
GND
R173R
1 WATT
CURRENT
VOLTS
F LP1
100R2 WATT
14VSOLAR
VOLTAGEDETECTOR
<=18V
VOLTS
SD41N5818
LM317
ADJ
I O
IC4
R164.3R
1 WATT
hr = mAh / mAc=battery capacityTrickle charge=c/10012V should not exceed 14.7V
TRIM250K
M3V0-30
M20-300mA
B
C
M
N
DE
F
TRIM110K
G
H
IJ
K
L
A BATT 1
BATT 2
BATT 3
BATT 4BATT 5
BATT 6
BATT 1
C11000mF
16VMETER
PROTECTIONFROM
SWITCHACTION
V
BATT 2
BATT 3BATT 4
BATT 5
BATT 6
C21000mF
16VMETER
PROTECTIONFROM
SWITCHACTIONIC6
UA741
2
36
TRIM150K
ADJ FOR11-13.5 VTURN ON
SOLAR
R21390R
GND
9V LINE
7
4
14V SOLARVOLTAGE SENSOR V7R19
4K7
R1810K
CHARGEOUTPUT
Q12N4403
SOLARPANEL
14-24VDC IN
UNREGULATED
D11N914
SUNLED
LM7809
G
OIIC7
Q2TIP31
R202K2
5VRELAYDPDT
*2.6W
RL200mA @ 13.5V
68R 5W
(RESISTANCE LOAD)
C11000m 6V5 SECOND
DELAY OFF
f 14
REMOVECAPACITOR
FORADJUSTMENT
J1
R2251R
9VOUT
SW7 SOLAR AUTOSENSE
ML1-ML3STRAW
HATCOOLWHITE
LED3.2V
METER BOARD
TRIM1100K
M10-30
SCALE
*C31000mF
*RL BELLSW
ROTOTARYSWITCH
DP6T
*C3: A capacitor was added toe
switching stress.ach meter to eliminate
©2013LENNIE ZINK
SOLAR CHARGERPARTS LAYOUT
SOLAR CHARGERBOTTOM VIEW
H
B
D
J
C
I
14-2
4V
SO
LA
R V
OLTA
GE
DE
TE
CT
OR
V7
©2013 L
EN
NIE
ZIN
K
24 VOLT 6 OUTPUT
9V
F
L
E
K
A
G
14-24V
CHIME
SW
9V SW
RESISTOR SWITCHED ON/OFF FROM GROUNDLOAD AND CHIME ARE
H
B
D
J
C
I
14-24V SOLAR VOLTAGE DETECTOR V7
©2013 LENNIE ZINK
24 VOLT 6 OUTPUT
9V
F
L
E
K
A
G
14-24V
CHIME
SW
9V SW
J1
C11000mF16V45-55 SECONDOFF DELAY
IC1LM317
IC5
UA741
81
54
B CE
COM
COIL
N ON
N OFF
RELAY
R1810K
TRIM150K
THRESHOLD
R194K7
R21390R
D11N914
Q12N4403
14-24VLINE IN
SW1SOLAR
METERLAMP
LEDS 3.2V
R515R1W
BATT2mA
IC2LM317
VOLTS
R63R1W
SD21N5818
IC3LM317
ADJ
OI
ADJ
OI
R7120R1W
BATT3mA
R810R1W
SD31N5818
ADJ
OI
IC4LM317
R1043R1W
BATT4mA
VOLTS
R114R31W
SD41N5818
ADJ
OI
I GND O
IC6LM7809
J2
BC
E
R202K2
Q2TIP31
RL
68R 5W
200mA @13.5V
R2251R
IC5LM317
R343R1W
VOLTS
R144R31W
SD51N5818
ADJ
OI
IC6LM317
VOLTS
R164R31W
SD61N5818
ADJ
OI
BATT6
BATT5
R4120R1W
R1120R1W
R33R1W
GND
SD11N5818R2
15R1W
VOLTS
SW1F/S
BATT1mA
R123R1W
R173R1W
R153R1W
R93R1W
P1100R2W
BATT1 GREENBATT2 YELLOWBATT3 BROWNBATT4 GRAYBATT5 ORANGEBATT6 PURPLE
LINE POWER REDSOLAR POWER WHITEGND BLACK
BATT4mA
BATT5mA
BATT6mA
VOLTS
SW2F/S
SW4F/S
SW3F/S
SW5F/S
P1100R1W
CHIMEON/OFF
WIRECOLORCODE:
Source Material:
NiMH Battery Charging Basicshttp://www.powerstream.com/NiMH.htm
Voltage Comparator:http://www.zen22142.zen.co.uk/Circuits/Switching/comparator.htm
©2013LENNIE ZINK
3-9
V
SW
©2013
LENNIE ZINK
V2
DIN
G D
ON
G B
EL
L
3-9V
SW
©2013
LENNIE ZINK
V2
DING DONG BELL
DING DONG BELLPARTS LAYOUT
DING DONG BELLBOTTOM VIEW
Onboardspeaker
IC1
40106
8
7
14
1
D41N4148
R1033K
R427K
R1147K
R110K
D21N4148
D11N4148
R547K
C40•1
Q12N4401
Q52N4401
Q22N4401
R310K
C12•2mF
R21M2
C310mF
D31N4148
R1310K
R910K
C810mF
D51N4148 R12
220K
R6220K
R710K
C50•1
C60•1
Q32N4401
Q42N4403
R82M2
C247mF
C70•1
BE
C
BE
CB
EC
BE
C
BE
C9V
1 2 SPK18 ohm
3 4 5 6
9 8
11 10
13 12
C70.01mF
IC1F
14
7
C810mF
D51N4148
D11N4148
D21N4148
D31N4148
C12.2mF
C247mF
C310mF C6
0.1mF
C50.1mF
C40.01mF
R110K
R21M2
R82M2
R710KR4
27K
R910K
R1033K
R1310K
R1147K
R12220K
R547K
R310K
R6220K
D41N4148
IC1E
IC1D
IC1A IC1B
IC1CMC14106
OR40106
Q12N4401
Q22N4401
Q32N4401
Q42N4403
Q52N4401
DING DONG BELL V2
DONGFREQUENCY
DINGFREQUENCY
*SW1
Bells Ring Generatorhttp://www.circuit-finder.com/categories/sound-and-oscillator/sound-generator/854/bells-ring-generator-circuit-schematic
A very interesting project! I thought this circuit could be used as a door bell. Turns out that the delaysometimes misses the switch action. I didn’t feel like trying to alter that. If you improve this circuit, let usknow!
*SW1 is actually the relaycontact on the solar sensor board.Power is always on for this circuit.
©2013LENNIE ZINK
UPDATEDLABELS
©2013LENNIE ZINK
Since the meters displaythe voltage and chargerates, the rotary switch
label was simplified.
Schottky Diode Protected!Doesn’t that sound impressive?
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NIT
OR
15
4
321
010
9 87
6
6
RA
TE
OU
T
IN
SO
LA
R
AU
TO
SE
NS
E
SL
OW
32
1
FA
ST
5
SO
LA
R/L
INE
PO
WE
RE
D
BA
TT
ER
YC
HA
RG
ER
SC
HO
TT
KY
DIO
DE
PR
OT
EC
TE
D4
BA
TT
3B
AT
T 2
BA
TT
1B
AT
T 5
BA
TT
4B
AT
T 6
PO
WE
R
IN
SO
LA
R
IN
SO
LA
R
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34
56
HO
BB
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EC
TR
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