標題: | SoPC Based Digital Current-Mode Control of Full-Bridge Phase-Shifted DC/DC Converters with Fast Dynamic Responses |
作者: | Ho, Gun-Sen Lin, Chiao-Chin Hsu, Shin-Hau Tzou, Ying-Yu 電機學院 College of Electrical and Computer Engineering |
關鍵字: | SOPC digital PWM controller;digital current-mode control;full-bridge phase-shift DC-DC converter;adaptive gain adjustments;mixed-signal FPGA |
公開日期: | 2013 |
摘要: | This paper proposes a SOPC (system-on-a-programmable-chip) solution for the digital current-mode control of a full-bridge phase-shifted (FB-PS) DC-DC converter to achieve fast dynamic response. The digital current-mode control scheme consists of several parts: a digital phase-shifted PWM generator to generate programmable phase-shifted PWM signals, a digital current controller, and a digital voltage controller through which an adaptive gain adjustments scheme could adjust controller parameters to achieve a fast dynamic response of the output voltage, and with a synchronous current sampling scheme to avoid switching noise and spike. The implementation of the proposed digital current-mode controller was realized by using a mixed-signal FPGA A2F200 from Microsemi SmartFusion. Experimental results are given to verify and show the feasibility of the proposed control scheme to a 800W, 400V to 12V DC-DC dc-dc converter in applications to high-performance server power supplies. |
URI: | http://hdl.handle.net/11536/23103 |
ISBN: | 978-1-4673-1792-4 |
ISSN: | 2164-5256 |
期刊: | 2013 IEEE 10TH INTERNATIONAL CONFERENCE ON POWER ELECTRONICS AND DRIVE SYSTEMS (IEEE PEDS 2013) |
起始頁: | 113 |
結束頁: | 118 |
顯示於類別: | 會議論文 |