多相降壓型轉換器之研製

The Design and Implementation of a Multi-phase Buck Converter

劉梵麟(Fan-Lin Liu)

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(2007年)

https://doi.org/10.6841/NTUT.2007.00168

摘要

本論文旨在研製用於低輸出電壓之兩相式降壓轉換器，其中功率級電路為以每相相差180度之開關依序導通的兩相並聯同步整流型降壓轉換器，其輸入電壓為5 V，輸出電壓及電流分別為1.8 V及20 A，每相轉換器操作頻率分別為200 kHz，輸出功率為36 W。藉由實驗波形來驗證所設計之兩相式同步整流降壓轉換器的正確性。

關鍵字

降壓轉換器 ； 多相轉換器

並列摘要

This thesis is focused on the design and implementation of a multiphase buck converter which is suitable for low voltage output applications. The power stage consists of a two-phase synchronous buck converter in which the power devices are controlled with a phase shift of 180 degrees. For the prototype of two-phase buck converter, the specifications are as follows: input voltage = 5 V, output voltage = 1.8 V and output current = 20 A is built, switching frequency per phase = 200 kHz and the output power = 36 W. Experimental waveforms are measured to verify the designed two-phase synchronous buck converter.

並列關鍵字

buck converter ； multi-phase converter

參考文獻

[9]葉家安，“數位式降壓型直流/直流轉換器之研製”，國立台北科技大學電機工程系碩士學位論文，民國95年七月。

[5]W. Huang, “A new control for multi-phase buck converter with fast transient response,” Proc. of the IEEE APEC, Vol. 1, pp. 273-279, 2001.

[6]H. K. Ji and H. J. Kim, “Active Clamp Forward Converter with MOSFET Rectification,” IEEE PESC, Vol. 2, pp. 895-901, 1994.

[8]X. Zhou, P. Xu and F. C. Lee, “A novel current-sharing control technique for low-voltage high-current voltage regulator module application,” IEEE Trans. on Power

Electronics, Vol. 15, No. 6, pp. 1153-1162, November 2000.