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A novel microprocessor-based battery charger circuit with power factor correction

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7 Author(s)
Demian, A.E. ; Dept. of Electr. Eng., Fed. Univ. of Uberlandia, Brazil ; Gallo, C.A. ; Tofoli, F.L. ; Vieira, J.B.
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An effective microcontrolled battery charger circuit that monitors the charging process avoiding the battery damage by overcharge is described, where a PWM forward topology with power factor correction is employed in order to provide DC/DC conversion. Depending on the battery charge state, which is determined by microcontroller PIC 16F873, the charging process is modified. In this way, fast charging does not have negative effects on the effective capacity of the battery and on battery cycle-life.

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Applied Power Electronics Conference and Exposition, 2004. APEC '04. Nineteenth Annual IEEE  (Volume:3 )

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