Title :
A novel microprocessor-based battery charger circuit with power factor correction
Author :
Demian, Aziz E., Jr. ; Gallo, Carlos A. ; Tofoli, Fernando L. ; Vieira, João Batista, Jr. ; De Freitas, Luiz Carlos ; Farias, Valdeir J. ; Coelho, Ernane A A
Author_Institution :
Dept. of Electr. Eng., Fed. Univ. of Uberlandia, Brazil
Abstract :
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.
Keywords :
DC-DC power convertors; PWM power convertors; battery chargers; cells (electric); microcontrollers; power factor correction; programmable controllers; DC/DC conversion; PWM forward topology; microcontrolled battery charger circuit; microcontroller PIC 16F873; microprocessor based battery charger; power factor correction; Batteries; Circuit topology; DC-DC power converters; Impedance; Load flow; Microcontrollers; Power factor correction; Process control; Pulse width modulation; Voltage control;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2004. APEC '04. Nineteenth Annual IEEE
Print_ISBN :
0-7803-8269-2
DOI :
10.1109/APEC.2004.1296048
