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A low-cost high power factor resonant mode battery charger

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2 Author(s)
Kassick, E.V. ; Power Electron. Lab., Federal Univ. of Santa Catarina, Brazil ; Barbi, I.

A power converter for battery charger applications, which has at the input a full wave rectifier, followed by a series resonant power converter with a clamped voltage resonant capacitor, is presented. In this converter, only two MOSFETs are employed. They control the current delivered to the battery across a high-frequency isolation transformer, and produce a high (near unity) power factor input current. The proposed topology allows the design of low cost equipment. A laboratory prototype has been built, rated at 440 W and 48 V, with measured efficiency of 0.89 and power factor of 0.96 full load

Published in:

Applied Power Electronics Conference and Exposition, 1993. APEC '93. Conference Proceedings 1993., Eighth Annual

Date of Conference:

7-11 Mar 1993

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