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http://dx.doi.org/10.5370/KIEEP.2014.63.4.248

Control of a Bridgeless PFC with the Discontinuous Conduction Mode  

La, Jae-Du (Dept. of Electrical Information, Inha Technical College)
Lee, Yong-Geun (Dept. of Electrical Information, Inha Technical College)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers P / v.63, no.4, 2014 , pp. 248-253 More about this Journal
Abstract
Generally, power factor correction (PFC) techniques play an important role in the power supply technology. Many new circuit topologies and control strategies for PFC have been proposed. Among them, the brideless PFC (BPFC) reduces the number of switching devices and the losses and improves the power density as well. Moreover, by implementing the improved topology in the discontinous conduction mode (DCM) it ensures almost unity power factor in a simple and effective manner. In the DCM operation gives additional advantages such as zero-current turn-on in the power switches, zero-current turn-off in the output diode and reduces the complexity of the control circuitry. In this paper, a new control strategy for the BPFC is proposed. Also, the performance of the proposed system is demonstrated through experiments.
Keywords
Discontinuous conduction mode (DCM); Power factor correction (PFC); Bridgeless PFC (BPFC);
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