Title :
An Asymmetrical Switched Capacitor and Lossless Inductor Quasi-Resonant Snubber-Assisted ZCS-PWM DC-DC Converter with High frequency Link
Author :
Fathy, Khairy ; Morimoto, Keiki ; Doi, Toshimitsu ; Lee, Hyun Woo ; Nakaoka, Mutsuo
Author_Institution :
Kyungnam Univ., Masan
Abstract :
In this paper, a novel type of auxiliary switched capacitor assisted edge resonant soft switching PWM resonant DC-DC converter with two auxiliary edge resonant lossless inductor snubbers. The operation principle of this converter is described using the switching mode equivalent circuits. This newly developed multi resonant DC-DC converter can regulate its dc output AC power under a principle of constant frequency edge-resonant soft switching commutation by asymmetrical PWM control scheme. The high frequency power regulation and actual power conversion efficiency characteristics of the proposed soft switching PWM series load resonant DC-DC converter are evaluated. The operating performances of the newly proposed soft switching inverter are discussed based on simulation results from an application point of view
Keywords :
DC-DC power convertors; PWM invertors; PWM power convertors; capacitor switching; power control; resonant invertors; resonant power convertors; snubbers; switching convertors; zero current switching; PWM control scheme; ZCS-PWM DC-DC converter; asymmetrical switched capacitor; auxiliary edge resonant snubbers; auxiliary switched capacitor assisted converter; edge resonant soft switching converter; lossless inductor; multi resonant DC-DC converter; power conversion efficiency; power regulation; quasiresonant snubber-assisted DC-DC converter; series capacitor; soft switching inverter; switching mode equivalent circuits; transformer leakage inductance compensation; Capacitors; DC-DC power converters; Frequency conversion; Inductors; Pulse width modulation; Pulse width modulation converters; Resonance; Snubbers; Switching circuits; Switching converters; DC-DC converter; auxiliary edge resonant snubber; auxiliary lossless snubbing inductor; auxiliary switched capacitor; series capacitor compensated transformer leakage inductance; zero current soft switching;
Conference_Titel :
Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0448-7
DOI :
10.1109/IPEMC.2006.4778200
