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Proposal of a low cost high frequency isolation high power factor AC-DC-AC power supply

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5 Author(s)
Bascope, R.P.T. ; Electr. Eng. Dept., Fed. Univ. of Ceara, Fortaleza, Brazil ; Bezerra, L.D.S. ; Costa, L.F. ; Lima, F.K.A.
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This paper proposes a low cost double conversion power line conditioner with high frequency isolation, high input power factor, full-range input voltage varying among 90Vac-264Vac and 115Vac output voltage. The rectifier with power factor correction is based on flyback converter using the critical current mode control. The inverter is based on full-bridge topology with digital control implemented in a DSPic30F2020 microcontroller. This system is suitable for application with loads which require a high quality sinusoidal voltage. System description, theoretical analysis and experimental results for a 500W implemented prototype are shown in this paper.

Published in:

Power Electronics Conference (COBEP), 2011 Brazilian

Date of Conference:

11-15 Sept. 2011