Bridgeless Boost Rectifier With Low Conduction Losses and Reduced Diode Reverse-Recovery Problems
Woo-Young Choi; Jung-Min Kwon; Eung-Ho Kim; Jong-Jae Lee; Bong-Hwan Kwon
Industrial Electronics, IEEE Transactions on
Volume 54, Issue 2, April 2007 Page(s):769 - 780
Digital Object Identifier   10.1109/TIE.2007.891991
Summary:A bridgeless boost rectifier with low conduction losses and reduced diode reverse-recovery problems is proposed for power-factor correction. The proposed boost rectifier can reduce the conduction losses and alleviate the diode reverse-recovery problems by using a coupled inductor and two additional diodes. Zero-current turn-off of the output diodes is achieved, and the reverse-recovery currents of the additional diodes are slowed down to reduce the diode reverse-recovery losses. All inductive components are realized on a single magnetic core by utilizing the leakage inductance of the coupled inductor. Furthermore, for the use of this topology in the practical design, the linear peak current mode control is employed for the proposed boost rectifier. A detailed analysis and a control strategy are presented. Experimental results for a 300-W prototype are also discussed to show the performance of the proposed boost rectifier

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