Title :
A new wide-range soft-switching PWM boost DC-DC converter with an edge-resonant switched capacitor in continuous conduction mode
Author :
Itoh, Hayato ; Mishima, Takeshi ; Nakaoka, Mutsuo
Author_Institution :
Grad. Sch. of Maritime Sci., Kobe Univ., Kobe, Japan
Abstract :
This paper presents a newly-developed soft switching PWM boost dc-dc converter in continuous conduction mode (CCM). The soft switching boost dc-dc converter consists of an edge-resonant switched capacitor (ER-SWC) cell, providing the wide-range soft commutations for all the switching power devices. The voltage stress inherent to the CCM scheme can be reduced by employing a lossless auxiliary circuit. The converter operation and performance are verified by experiments, and the effective reduction of the voltage stress and the efficiency improvement are originally demonstrated as well as its voltage conversion ratio.
Keywords :
DC-DC power convertors; PWM power convertors; capacitor switching; resonant power convertors; switching convertors; zero current switching; zero voltage switching; CCM scheme; ER-SWC cell; continuous conduction mode; edge-resonant switched capacitor; lossless auxiliary circuit; switching power device; voltage conversion ratio; voltage stress reduction; wide-range soft commutation; wide-range soft-switching PWM boost DC-DC converter; Capacitors; Inductors; Pulse width modulation; Soft switching; Stress; Switches; Video recording;
Conference_Titel :
Renewable Energy Research and Applications (ICRERA), 2012 International Conference on
Conference_Location :
Nagasaki
Print_ISBN :
978-1-4673-2328-4
Electronic_ISBN :
978-1-4673-2329-1
DOI :
10.1109/ICRERA.2012.6477262
