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Browsing EEN by Author "ABAID ULLAH ANWAR"

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    Design & implementation of solar charger with cascade dc to dc convertor & harmonics filter
    (UMT.Lahore, 2016) MUHAMMAD ALI; ZOHAIB AFZAL; ABAID ULLAH ANWAR; FAREED
    Design and Implementation of Solar Charger with Cascaded DC to DC convertor & Harmonics filter”. As it can be understood from the title that we are using solar cells for the charging of our batteries and then utilize it for running our equipment’s. The defect in the today’s system of the solar chargers is that they are low in efficiency and quality of the output we need to charge the batteries is not so high. It has ripples in it and the voltages are not stable, because the voltages are directly proportional to the sunlight intensity. when the sunlight is at its peak the voltages from the output of the solar panel will be very high and when the sun is going to be set in or on the rising time the sunlight intensity will be very low resulting the output of the solar panel very low, which is not acceptable. we need more stable voltages for better efficiency of our system. The other thing is the system harmonics which we need to minimize as low as possible. So we have designed a charger to meet all these needs which has the functionality of voltage stability and which has almost negligible harmonics. We have used cascaded DC to DC convertors with programed MOSFET which will stabilize the voltage level and then on the final output a harmonics filter is installed to minimize the harmonics. This will result in more efficient solar charger with more stabilized power output and reduced harmonics.