交錯式同步整流降壓型轉換器的研製

Design and Implementation of Interleaved Buck Converters with Synchronous Rectification

李書正(Shu-Cheng Lee)

指導教授 ： 賴炎生

國立臺北科技大學/電資學院/電力電子產業研發碩士專班/碩士(2008年)

https://doi.org/10.6841/NTUT.2008.00049

摘要

本論文旨在研製一部交錯式降壓型轉換器應用在低電壓與高電流上，所研製出的轉換器優點包含較低的輸出電流漣波與較高的電流扭轉率；交錯式降壓型轉換器使用英特矽爾（Intersil）的控制IC來實現PWM控制，轉換器的規格有輸入電壓為12伏，輸出電壓及輸出電流分別為3.3伏及10安培、兩相、及每相轉換器的操作頻率分別為100 k赫茲。
推導出轉換器的小訊號模型，用以設計控制器，從小訊號模型的推導中設計出三個極點及兩個零點的控制器，並且使用誤差放大器與被動元件實現之。藉由實驗結果顯示出有良好的輸出電壓調節，並且驗證設計及實作。

關鍵字

降壓式轉換器 ； 交錯式轉換器

並列摘要

The objective of this thesis is to design and implement an interleaved buck converter for lower voltage and high current applications. The advantages of the designed and implemented converter include low output current ripples and high current slew rate. An Intersil control IC is used to realize the PWM control of interleaved buck converter.
The specifications of the converter are: input voltage = 12 V, output voltage = 3.3 V, output current = 10 A, two phases, and switching frequency for each phase = 100 kHz.
The small signal model of the converter is derived to design the controller. A three-pole-two-zero controller is designed based upon the derived small signal model and realized using operation amplifier and passive components. Experimental results show that the output voltage is well regulated, and confirms the design and implementation.

並列關鍵字

Buck Converter ； Interleaved Buck Converter

參考文獻

[10] 葉家安，數位式降壓型直流/直流轉換器之研製，碩士論文，國立台北科技大學電機工程系碩士學位論文，台北，2006。

[22] 劉梵麟，多相降壓型轉換器之研製，碩士論文，國立台北科技大學電機工程系，台北，2007。

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