The function of any solar charge controller is to allow charging current to battery bank till it is charged to its capacity and prevent it from getting overcharged.
The basic element converting sunlight into electricity is solar cell made out of silicon material. A solar cell generates approximately 0.6 volts open circuit voltage and 30 MA/sq. Cm. short circuit current under Standard Test Conditions (STC). To have building block of practical utility, 36 numbers identical solar cells are connected in series to make a module suitable for charging 12volts battery. By putting them in series and parallel arrangement, required voltage/current/power levels can be generated.
The sunlight being available during the day only, so SPV array provides DC electricity during the day. power from the array varies with variation in the sunlight falling on the modules, so the power required during low sunshine hours and at night calls for energy storage, which is invariably a storage battery. the solar insolation falling on the array varies from day to day and the ration of average insulation in the best month could be as high as 1.5 to 2 times of that received during lean month. Accordingly there may be battery getting overcharged if not checked. To guard against such an undesirable occurrence, a charge controller is require for an SPV system.
EMAIL: info@embeddekits.in
WEBSITE: www.embeddedkits.in
PHONE: 9611145044
EMAIL: info@embeddekits.in
WEBSITE: www.embeddedkits.in
PHONE: 9611145044
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