Title :
A low-cost high power factor resonant mode battery charger
Author :
Kassick, E.V. ; Barbi, I.
Author_Institution :
Power Electron. Lab., Federal Univ. of Santa Catarina, Brazil
Abstract :
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
Keywords :
battery chargers; circuit resonance; high-frequency transformers; insulated gate field effect transistors; power convertors; power factor; power transistors; rectifying circuits; 440 W; 48 V; 89 percent; MOSFETs; applications; clamped voltage resonant capacitor; cost; design; full wave rectifier; high-frequency isolation transformer; input current; mode battery charger; power factor resonant; power transistors; series resonant power converter; topology; Batteries; Capacitors; Costs; Laboratories; MOSFETs; Prototypes; Reactive power; Rectifiers; Resonance; Topology;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1993. APEC '93. Conference Proceedings 1993., Eighth Annual
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0983-9
DOI :
10.1109/APEC.1993.290716
