Abstract

Rectifier circuits made up of diodes are used in quite a few applications, including Uninterrupted Power Supply (UPS), Switch Mode Power Supply (SMPS), and battery energy storage to convert the AC voltage to the DC voltage. However, the low power factor issue, which causes high current harmonics, is the major disadvantage of this diode rectifier. The need for high-power components with low total harmonic distortion (THD) and high PF is growing. This article aims to investigate three techniques for achieving a PF close to one utilizing buck, boost, and flyback topologies as active power factor correction APFC methods.

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