Title :
AC/DC unit power factor converter with a high-frequency transformer: analysis of operation
Author :
Agustoni, A. ; Brenna, M. ; Faranda, R. ; Tironi, E. ; Ubezio, G.
Author_Institution :
Dipartimento di Elettrotecnica, Politecnico di Milano, Italy
Abstract :
This paper presents a new topology for a single-phase AC/DC power converter. This converter offers advantageous features such as inherent power factor correction (PFC), electrically isolated output and high efficiency. Its structure consists of a diode bridge followed by a DC/DC converter with high frequency transformer and new nondissipative snubber circuits. Analysis of operation and remarks on the duty cycle are presented. Simulation results confirm the validity of theoretical study and the converter´s performances
Keywords :
AC-DC power convertors; DC-DC power convertors; bridge circuits; high-frequency transformers; power factor correction; snubbers; AC/DC unit power factor converter; DC/DC converter; active filter; active power conditioner; diode bridge; duty cycle; electrically isolated output; high efficiency; high frequency transformer; high-frequency transformer; inherent power factor correction; nondissipative snubber circuits; single-phase AC/DC power converter; Analog-digital conversion; Bridge circuits; Circuit analysis; Circuit topology; DC-DC power converters; Diodes; Frequency conversion; Power factor correction; Reactive power; Snubbers;
Conference_Titel :
Harmonics and Quality of Power, 2000. Proceedings. Ninth International Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-6499-6
DOI :
10.1109/ICHQP.2000.897007
