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http://dx.doi.org/10.5207/JIEIE.2006.20.1.034

The Characteristics Analysis of New Dc 48[V] Telecommunication Power System using Forward Type three Phase Rectifier  

Suh, Ki-Young (경남대학교 전자전기공학부)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.20, no.1, 2006 , pp. 34-40 More about this Journal
Abstract
This paper proposed power system for new DC 49[V] telecommunication using forward three-phase PWM rectifier power factor and efficiency for improvement of ripple voltage. Proposed power system for DC 48[V] telecommunication that consists of power conversion devices including switch, inductor and condenser were made between each line, in power inverter device of each switch control turn-on in period of continuity time control to get power factor '1' of sine wave current and on-off of switch lessens peak current that was happened and got conversion efficiency 92.1[%] composing in PWM rectifier of forward form instead of general PWM rectifier. Also, harmonic input regulation value(IEC61000-3-2 Class-As) satisfy input current and reduce ripple factor of output voltage in state that distortion of three-phase supply is overlapped each other.
Keywords
Telecommunication; IEC61000-3-2; High-Frequency isolated;
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