Title :
Averaged modeling of a ZVT soft switching PFC converter
Author :
Lin, Jong-Lick ; Yang, Sung-Pei ; Yu, Chih-Hsiung
Author_Institution :
Dept. of Eng. Sci., Nat. Cheng Kung Univ., Tainan, Taiwan
Abstract :
A small-signal model for a zero-voltage-transition soft switching power factor correction converter is derived in This work. The averaging method for two-time scale discontinuous system and averaged power method are used to derive the small-signal mathematical model for a ZVT soft-switching PFC converter when the input current tracks the reference current. The accuracy of the developed model is verified by experimental measurement. It shows that the model is dependent upon the switching frequency.
Keywords :
power factor correction; switching convertors; zero voltage switching; ZVT soft switching converter; averaged power method; power factor correction converter; reference current; small signal mathematical model; switching frequency; two time scale discontinuous system; zero voltage transition softswitching converter; Circuits; Power factor correction; Pulse width modulation; Pulse width modulation converters; Resonance; Switches; Switching converters; Switching frequency; Switching loss; Voltage;
Conference_Titel :
Circuits and Systems, 2004. Proceedings. The 2004 IEEE Asia-Pacific Conference on
Print_ISBN :
0-7803-8660-4
DOI :
10.1109/APCCAS.2004.1412985
