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  • 學位論文

具有多組輸出之直流/直流轉換器的研製

Design and Implementation of DC/DC Converter with Multiple Outputs

指導教授 : 賴炎生
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摘要


本文主要為研製一具有4組輸出之直流/直流轉換器(DC/DC Converter),其電路設計包含一具有+5V和+3.3V輸出的順向式轉換器(Forward Converter),和一供給+5Vsb及-12V輸出的返馳式轉換器(Fly-back Converter),又稱為輔助電路(Auxiliary Circuit)。 其規格如下: 輸入電壓:DC +380V及AC 90V~265V 輸出電壓及電流:+5V(30A),+3.3V(28A),+5Vsb(2A), -12V(0.8A) 輸出功率:260W 本文所研製之轉換器具有應用於桌上型電腦之主機板,並且以實驗結果驗證設計與實作。

並列摘要


The objective of this thesis is to design and implement a DC/DC converter which has four outputs. The designed and implemented circuit consists of a forward converter which gives outputs of 5V and 3.3 V, and a fly-back converter, called auxiliary circuit, which provides outputs of -12V and +5V. The specifications are as follows. Input voltage: DC +380V and AC 90V~265V Output voltages and current:+5V(30A), +3.3V(28A), +5Vsb(2A), -12V(0.8A) Total output watts: 260W The details for the design and implementation are presented in this thesis. The implemented converter can be applied to PC mother board. Experimental results confirm the design and implementation.

參考文獻


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[2] I. D. Jitaru, A. Ivascu, “Quasi-integrated magnetic an avenue for higher power density and efficiency in power converters,” Proc. of IEEE APEC, Vol. 1, pp. 395-402, 1997.

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