Title :
A single-stage power factor correction AC/DC converter based on zero voltage switching full bridge topology with two series-connected transformers
Author :
Kim, Tae-Sung ; Koo, Gwan-Bon ; Moon, Gun-Woo ; Youn, Myung-Joong
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
Abstract :
A single-stage power factor correction ac/dc converter based on zero voltage switching (ZVS) full bridge topology with two series-connected transformers is proposed in this paper. The proposed converter offers a very wide ZVS range due to the configuration of two series-connected transformers. It features a high efficiency over wide load ranges. Furthermore, it shows the low voltage stress on a dc link capacitor. The proposed converter also gives the high power factor and low input current harmonics complied with IEC 61000-3-2 Class D requirements by integrating a boost stage operated in a discontinuous current mode. The ZVS conditions, large signal modeling, and design procedure are discussed in detail. Experimental results are presented to show the validity of the proposed converter.
Keywords :
AC-DC power convertors; bridge circuits; harmonic analysis; network topology; power factor correction; power transformers; zero voltage switching; AC-DC converter; DC link capacitor; IEC 61000-3-2 class D requirements; ZVS; current harmonics; single-stage power factor correction; two series-connected transformers; voltage stress; zero voltage switching full bridge topology; Bridge circuits; Capacitors; DC-DC power converters; Low voltage; Power factor correction; Reactive power; Stress; Topology; Transformers; Zero voltage switching; Full bridge (FB); power factor correction (PFC); single-stage; two series-connected transformers; zero voltage switching (ZVS);
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2005.861200
