2014•Unpublished venueRequires access

Power Factor Corrected Isolated DC Power Supply with Low Harmonics

Preti Tyagi, Ganesh Wadmore, Sunder Singh

Abstract

Without using power factor correction a typical switched-mode power supply would have a power factor of around 0.6. Hence PFC on the device side can become an important part of the system design for many power electronics products. The proposed PFC device can operate at high efficiency and contains Low weight transformer. In addition it has advantages such as fewer structural complications and ease of control. A prototype suitable for 1000 W output (extendable) with low harmonic distortion, input voltage of 230 Vrms and an output voltage of 120Vdc (extendable)is design and tested at such a Pulse width modulation (PWM) control scheme for single-phase power

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Available abstract

Key concepts: Power factor, Switched-mode power supply, Total harmonic distortion, Pulse-width modulation, Harmonics, Voltage optimisation, Electrical engineering, Transformer