TY - JOUR
T1 - A single-stage fast regulator with PFC based on an asymmetrical half-bridge topology
AU - Wu, Tsai Fu
AU - Hung, Jin Chyuan
AU - Tseng, Sheng Yu
AU - Chen, Yaow Ming
PY - 2005/2
Y1 - 2005/2
N2 - This paper presents single-stage regulators with power-factor correction (PFC) based on an asymmetrical half-bridge topology. The proposed regulator is formed from a boost converter with two coupled inductors and an asymmetrical half- bridge converter with the synchronous switch technique, and it is controlled with pulsewidth modulation to achieve zero-voltage switching (ZVS). The boost converter is operated in discontinues conduction mode to achieve PFC. With the coupled inductors, input current ripple and power factor can be improved significantly. The proposed regulator has the features of constant-frequency operation, ZVS, and low voltage stress imposed on the active switches. Moreover, the regulator can achieve high power factor, high power density, high efficiency, low switching loss, and low component count, which makes its applications at medium-power levels feasible. Experimental results have verified the discussed features of the proposed regulator.
AB - This paper presents single-stage regulators with power-factor correction (PFC) based on an asymmetrical half-bridge topology. The proposed regulator is formed from a boost converter with two coupled inductors and an asymmetrical half- bridge converter with the synchronous switch technique, and it is controlled with pulsewidth modulation to achieve zero-voltage switching (ZVS). The boost converter is operated in discontinues conduction mode to achieve PFC. With the coupled inductors, input current ripple and power factor can be improved significantly. The proposed regulator has the features of constant-frequency operation, ZVS, and low voltage stress imposed on the active switches. Moreover, the regulator can achieve high power factor, high power density, high efficiency, low switching loss, and low component count, which makes its applications at medium-power levels feasible. Experimental results have verified the discussed features of the proposed regulator.
KW - Asymmetrical half-bridge converter
KW - Power-factor correction
KW - Zero-voltage switching (ZVS)
UR - http://www.scopus.com/inward/record.url?scp=13944268271&partnerID=8YFLogxK
U2 - 10.1109/TIE.2004.841098
DO - 10.1109/TIE.2004.841098
M3 - 文章
AN - SCOPUS:13944268271
SN - 0278-0046
VL - 52
SP - 139
EP - 150
JO - IEEE Transactions on Industrial Electronics
JF - IEEE Transactions on Industrial Electronics
IS - 1
ER -