Title :
Output Voltage Control of Resonant Boost Switched Capacitor Converter
Author :
Shoyama, Moasahito ; Ninomiya, Tamotsu
Author_Institution :
Kyushu Univ., Fukuoka
Abstract :
Conventional switched capacitor converters have an inherent drawback that their efficiency is much decreased as the output current is increased. To solve this problem we presented a novel switched capacitor converter topology that uses a resonant operation instead of the forced charging and discharging operation. Its advantage over a conventional switched capacitor converter is a high efficiency even in a high output current region. In this paper, firstly, the operation analysis and the steady-state characteristics are analyzed for a double boost type switched capacitor converter with synchronous rectifiers under the condition that the switching frequency matches with the resonant frequency. Next, the steady-state characteristics are analyzed when using the output voltage control by changing the switching frequency.
Keywords :
rectifying circuits; resonant power convertors; switched capacitor networks; switching convertors; voltage control; resonant boost switched capacitor converter; steady-state characteristics; synchronous rectifiers; voltage control; Capacitors; Circuit topology; DC-DC power converters; Inductors; Resonance; Steady-state; Switches; Switching circuits; Switching converters; Voltage control; output voltage control; resonant converter; switched capacitor converter;
Conference_Titel :
Power Conversion Conference - Nagoya, 2007. PCC '07
Conference_Location :
Nagoya
Print_ISBN :
1-4244-0844-X
Electronic_ISBN :
1-4244-0844-X
DOI :
10.1109/PCCON.2007.373073