Reduction of Harmonics Caused Due to Smps Using Sigma Delta Modulation
نویسنده
چکیده
The harmonic currents generated by the modern power supply equipment cause power system heating and also add to user power bills. Personal computers are the major equipments which use the modern power supply ie switched mode power supply (SMPS).These SMPS draw non-sinusoidal currents from the supply which results in generation of harmonics. Power quality of the distribution network is been disturbed by these harmonics during the operation of the electronic load. The switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor. This paper presents a new method, sigma delta modulation to control the SMPS operation and minimise the harmonics generated by it. Keywords— Harmonics, Power Supply, Power Quality, Switch Mode Power Supply
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