THEPRINCIPLEOF
ELECTRICALENERGY
GENERATIONBYSOLAR
ARRAYS ISBASEDON
PHOTOVOLTAICEFFECT
INSEMICONDUCTOR
STRUCTURESWITHP-
N- JUNCTION
RENEWABLE
ENERGYAND
ENERGY
CONSERVATION
TECHNOLOGIES
Description
The increasednumber of complicatedport-
ableelectronic equipment containingelectrical
accumulator batterys in last 5-10 years, tendency
towideningof theequipment functions and
reductionof dimensions, and alsopressingneed
formass applicationof ecologicallypure renew-
able sources of energy – these are thenecessary
prerequisites formass applicationof decentral-
izedphotovoltaic chargers.
Portable solar arrays are intended for profes-
sional andeverydayportableelectronic equip-
ment power supply (mobile and satellitephones,
satellitenavigation systems, portable computers,
modernphoto- and video- cameras, ecological
monitoringequipment, audioequipment etc.) in
autonomous conditions.
Theprincipleof electrical energygeneration
by solar arrays is basedonphotovoltaic effect in
semiconductor structureswithp-n- junction. The
monocrystalline silicon asmaterial for solar cells
is used. It allows toensurehighefficiencyof pho-
toconversion and long service life. Thehermetic
sealing is carriedoutwith theuseof hot lamina-
tion in vacuum technology.
On Fig. 1 a vacuum laminator VL540/290 is
presentedwhichwas developed andmade in
SDTBof V.Lashkaryov ISPof NASof Ukraine and
was used for experimental samples of solar arrays
manufacturing..
On Fig. 2 anexperimental sampleof solar
array formobilephones SBMT-S-8.0-0.23 is pre-
SOLAR ARRAYS FOR PORTABLE
ELECTRONIC EQUIPMENT
sented, which canbeused for other portable
equipment aswell.
Specificationsof solar array
SBMT-S-8.0-0.23
Ñharging current* - 0,23A
Open-circuit voltage* - 8,0V
Dimensions
inoperationposition - 75,0õ270,0õ3,8mm
in transportationposition - 75,0õ55,0õ15,0mm
Weight - 120g
*ÀÌ ( 1,5 ), 1000Wp/ì2, 25±2îÑ.
InnovativeAspectsandMainAdvantages
Themain innovative aspect is in applying the
principleusuallyused for spaceequipment: in
the transportationposition solar array is in com-
pactlypacked condition andhasminimal weight
anddimensions parameters.
Thedesign and technologyguarantees
its high resistance tonegative climatic and trans-
port factors, high reliability and considerable
operation resource (up to8 years andmore).
AreasofApplication
Portablesolararrayscanbeused insuchareasas:
- Communication
- Computer equipment
-Military equipment
- Photo-, video- audio- equipment
- Tourism andeveryday life
As solar arrays areuseful in any casewhen
electric energy is neededbut stationary electrical
grid is absent, there canbeother areas of appli-
cation for them aswell.,
Stageof development
Experimental sampleshavebeen made.
Laboratory testshavebeencarriedout. Laboratory
technologyhasbeendevelopedwhich isbased
on the technological equipmentmade inSDTBof
V.Lashkaryov ISPofNASofUkraine.
Fig. 1. Vacuum laminator
VL540/290.
Fig. 2. Folding solararray formobile
phonesSBMT-S-8.0-0.23 (experimental
sample)and its case.
BUSINESS EMIRATES
118
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