Abstract

All type of electronics devices works on the DC power supply and use AC-to-DC conversion device. Passive elements are used in the AC-to-DC conversion device which creates the harmonics in the system. Harmonic current always introduces poor power factor in operating device. The low power factor created in any type of the electrical or electronics devices deteriorates its performance. PFC boost converter helps in improving the power factor. Power factor correction boost converter significantly improves both power factor and harmonic distortion Two types of circuit model (a) conventional and (b) bridgeless type are discussed in this paper. The difference between the conventional power factor correction converter and bridgeless power factor correction is that diode bridge is present in conventional power factor correction circuit, but no diode bridge is present in the type (b) PFC.

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