High-Power-Factor Rectifier Using the Modified SEPIC Converter Operating in Discontinuous Conduction Mode

Autor:	Roger Gules, Eduardo Felix Ribeiro Romaneli, Alceu Andre Badin, Carlos Gabriel Bianchin
Rok vydání:	2015
Předmět:	Forward converter Rectifier Materials science Switched-mode power supply Control theory Flyback converter Boost converter Ćuk converter Charge pump Power factor Electrical and Electronic Engineering
Zdroj:	IEEE Transactions on Power Electronics. 30:4349-4364
ISSN:	1941-0107 0885-8993
DOI:	10.1109/tpel.2014.2360172
Popis:	The theoretical and experimental analysis of a modified version of the SEPIC dc–dc converter used as preregulator operating in discontinuous conduction mode (DCM) is presented in this paper. The proposed converter presents a low input current ripple operating in DCM, and the switch voltage is lower than the output voltage. The switch voltage reduction increases the converter reliability and a low drain-to-source on-resistance ( ${\rm RDS}_{{\rm on}}$ ) MOSFET can be used depending on the converter specification. Moreover, a digital control technique is applied to the proposed converter in order to reduce the third-harmonic input current distortion resultant of the operation in DCM. Finally, a 100-W prototype was developed operating with efficiency equal to 95.6%.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::60da345c6944818f80c73962e2f72ba2 https://doi.org/10.1109/tpel.2014.2360172 Zobrazit plný text záznamu