數位式交錯降壓型直流/直流轉換器之研製

Design and Implementation of Digital Controlled Interleaved Buck DC/DC Converter

黃柏文(Po-Wen Huang)

指導教授 ： 賴炎生

國立臺北科技大學/電資學院/電機工程系研究所/碩士(2009年)

摘要

本論文主要研製一數位式交錯降壓型直流/直流轉換器，採用交錯式同步整流降壓式的架構，其設計規格為輸入電壓12V，輸出電壓及電流為3.3V/20A，開關切換頻率為300 kHz。
數位控制係以瑞薩微控制器SH7203與Altera場效可規劃邏輯閘陣列Stratix EP2S30F484C4N為核心，使用微控制器實現數位化控制器，而場效可規劃邏輯閘陣列產生控制訊號與資料串並列轉換，其整合MCU與FPGA來研製具有均流控制之數位式交錯降壓型直流/直流轉換器。由實驗結果証明，在額定輸入電壓及負載條件下，無載及滿載時，輸出電壓漣波皆小於±1%，並且具有良好的均流控制，由此實驗結果驗證理論與設計的正確性。

關鍵字

數位控制 ； 壓降型直流/直流轉換器 ； 均流控制

並列摘要

The objective of this thesis is to design and implement a digital controlled interleaved buck converter. The details of the specifications are as follows: input voltage is 12V, output voltage is 3.3V, maximum output current is 20A and switching frequency is 300 kHz.
The digital control is realized by RENESAS MCU SH7203 and Altera FPGA Stratix EP2S30F484C4N. MCU is used to implement the digital control methodology. FPGA is used to implement the DPWM and converts the serial data to parallel data. The fully digital controlled interleaved buck DC/DC converter with current sharing function is implemented by MCU and FPGA. The experimental results show that the output voltage is well regulated and its ripple is less the ±1% under both light load and full loads, and current sharing is achieved. These results confirm the controller design and implementation.

並列關鍵字

Digital Control ； Buck DC/DC Converter ； Current Sharing

參考文獻

[9] 葉家安，數位式降壓型直流/直流轉換器之研製，碩士學位論文，國立台北科技大學電機工程所，民國九十五年七月。

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