Title :
Class Φ2 DC-DC converter with PWM on-off control
Author :
Song, Bo ; Yang, Xu ; He, Yingjie
Author_Institution :
Xi´´an Jiaotong Univ., Xi´´an, China
fDate :
May 30 2011-June 3 2011
Abstract :
This paper presents a very high frequency dc dc converter based on class Φ2 inverter and PWM on-off control is selected as the control strategy. Class Φ2 resonant inverter can provide a lower switch voltage stress than class E inverter. Besides, a two-stage resonant gate driver is also introduced, which provides low gating losses and is suited for very high frequency applications. In addition, PWM on off control is used to modulate the converter at a fixed frequency so that there is only designed frequency content at output voltage. The prototype dc-dc converter operating at 30 MHz provides 107 W and closed-loop peak efficiency is 70% during input voltage range of 35 V-47 V when output voltage is regulated at 73 V.
Keywords :
DC-DC power convertors; PWM power convertors; on-off control; resonant invertors; DC-DC converter; PWM on-off control; efficiency 70 percent; frequency 30 MHz; power 107 W; resonant inverter; two-stage resonant gate driver; very high frequency applications; voltage 35 V to 47 V; voltage 73 V; Driver circuits; Frequency conversion; Frequency modulation; Inverters; Logic gates; MOSFET circuits; Switching frequency; class Φ2 inverter; dc-dc converter; on-off control; resonate;
Conference_Titel :
Power Electronics and ECCE Asia (ICPE & ECCE), 2011 IEEE 8th International Conference on
Conference_Location :
Jeju
Print_ISBN :
978-1-61284-958-4
Electronic_ISBN :
2150-6078
DOI :
10.1109/ICPE.2011.5944774
