A novel edge resonant switched capacitor modular-assisted soft switching PWM Boost DC-DC converter for telecommunications energy

Author

Mishima, Tomokazu ; Takeuchi, Yujiro ; Nakaoka, Mutsuo

Author_Institution

Grad. Sch. of Maritime Sci., Kobe Univ., Kobe, Japan

fYear

2011

fDate

9-13 Oct. 2011

Firstpage

1

Lastpage

9

Abstract

This paper presents a new prototype of a soft switching PWM non-isolated boost DC-DC converter embedding an edge-resonant switched capacitor (ER-SWC) modular. The conceptual DC-DC converter treated herein can achieve a high frequency ZCS turn-on and ZVS turn-off operations in active switches and minimization of a reverse recovering current in the freewheeling diode under Discontinuous Conduction Mode(DCM) partially including Critical Conduction Mode(CRM) in the input current. Those advantageous properties enable a wide range of soft switching operations together with a high step-up voltage conversion ratio. For demonstrating the effectiveness of the proposed soft switching PWM boost DC-DC converter following to describing its circuit design procedure, a 1 kW-40 kHz laboratory prototype is evaluated in experiments, then its performances are discussed from a practical point of view.

Keywords

DC-DC power convertors; PWM power convertors; network synthesis; switching convertors; telecommunication power supplies; zero current switching; zero voltage switching; CRM; DCM; ER-SWC modular; PWM nonisolated boost DC-DC converter; active switches; circuit design; critical conduction mode; discontinuous conduction mode; edge-resonant switched capacitor modular; frequency 40 kHz; high frequency ZCS turn-on; high frequency ZVS turn-off; power 1 kW; reverse recovering current minimization; step-up voltage conversion ratio; telecommunications energy; Pulse width modulation; Silicon; Switches; Critical Conduction Mode (CRM); Discontinuous Conduction Mode (DCM); boost PWM DC-DC power converter; edge resonant switched capacitor; high step-up; soft switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference (INTELEC), 2011 IEEE 33rd International

Conference_Location

Amsterdam

ISSN

2158-5210

Print_ISBN

978-1-4577-1249-4

Electronic_ISBN

2158-5210

Type

conf

DOI

10.1109/INTLEC.2011.6099869

Filename

6099869