Title :
Universal input voltage AC/DC adapter
Author :
Garcia, O. ; Cobos, J.A. ; Alou, P. ; Prieto, R. ; Uceda, J.
Author_Institution :
Div. de Ingenieria Electronica, Univ. Politecnica de Madrid, Spain
Abstract :
Low power AC/DC adapters require a small size to be competitive. Among their components, the bulk capacitor is one of the largest because it should keep the input voltage with low ripple. Also, the size of this capacitor is penalized due to the universal line voltage application. A smaller size AC/DC adapter is proposed in this paper. Based on a topology for power factor correction, the capacitance of the bulk capacitor is reduced to one third, allowing a reduction of the volume of the circuit. An experimental prototype confirms this result.
Keywords :
AC-DC power convertors; capacitance; capacitors; power factor correction; bulk capacitor; capacitance reduction; circuit volume; low input voltage ripple; low power AC/DC adapters; power factor correction; universal input voltage AC/DC adapter; universal line voltage application; Capacitance; Capacitors; Circuit topology; Costs; Frequency; Low voltage; Mobile handsets; Power factor correction; Power supplies; Prototypes;
Conference_Titel :
Power Electronics Specialists Conference, 2002. pesc 02. 2002 IEEE 33rd Annual
Print_ISBN :
0-7803-7262-X
DOI :
10.1109/PSEC.2002.1022317
