A new high step-up soft switching PWM boost DC-DC converter with edge-resonant switched capacitor modular

Author

Mishima, Tomokazu ; Takeuchi, Yujiro ; Nakaoka, Mutsuo

Author_Institution

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

fYear

2011

fDate

May 30 2011-June 3 2011

Firstpage

846

Lastpage

853

Abstract

This paper presents a new soft switching PWM non-isolated boost DC-DC converter embedding an edge resonant switched capacitor (ER-SWC) modular. The DC DC converter treated here 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 DCM including CRM in the input current. Those advantageous properties enable a wide range of soft switching operations achievable together with a high step-up voltage conversion ratio. For demonstrating the effectiveness of the new soft switching PWM boost DC-DC converter, a 1 kW-40 kHz laboratory prototype is evaluated in experiments, then performances of the proposed soft switching PWM boost DC-DC converter are discussed from a practical point of view.

Keywords

DC-DC power convertors; PWM power convertors; switched capacitor networks; zero current switching; zero voltage switching; ZVS turn-off; edge-resonant switched capacitor modular; freewheeling diode; frequency 40 kHz; high frequency ZCS turn-on; high step-up soft switching PWM boost DC-DC converter; power 1 kW; Capacitors; Inductors; Pulse width modulation; Switches; Video recording; Zero current switching; Critical Conduction Mode (CRM); Discontinuous Conduction Mode (DCM); boost PWM DC-DC power converter; edge resonant switched capacitor; soft switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and ECCE Asia (ICPE & ECCE), 2011 IEEE 8th International Conference on

Conference_Location

Jeju

ISSN

2150-6078

Print_ISBN

978-1-61284-958-4

Electronic_ISBN

2150-6078

Type

conf

DOI

10.1109/ICPE.2011.5944625

Filename

5944625