Title :
Resonant DC/DC converter with class E oscillator
Author :
Hase, Hiroyuki ; Sekiya, Hiroo ; Lu, Jianming ; Yahagi, Takashi
Author_Institution :
Graduate Sch. of Sci. & Technol., Chiba Univ., Japan
Abstract :
The paper presents a new free-running-oscillation resonant DC/DC converter with a class E oscillator, along with its design procedure and experimental results. The proposed converter is composed of a class E oscillator and a class E rectifier. This circuit is a free-running-oscillation system and has no gate-drive circuit to drive the MOSFET. The proposed converter has the ability to achieve high power conversion efficiency under high frequency operation because of class E switching at both oscillator and rectifier. Experimentally measured power conversion efficiency is 78.9% for 1.55 W output power at an operating frequency 2.00 MHz.
Keywords :
DC-DC power convertors; MOSFET circuits; nonlinear network synthesis; radiofrequency oscillators; rectifiers; resonant power convertors; switching convertors; 1.55 W; 2.0 MHz; MOSFET; class E oscillator; class E rectifier; class E switching; free-running-oscillation resonant DC/DC converter; gate-drive circuit; power conversion efficiency; DC-DC power converters; Frequency conversion; Frequency measurement; MOSFET circuits; Oscillators; Power conversion; Power measurement; Rectifiers; Resonance; Switching converters;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1464689
