本論文以推挽是轉換器為研究對象，一般轉換器分線性轉換器與切換式轉換器。
使用推挽是架構因為磁滯面積較順向式大因此輸出能量大。而推挽式另外一個優點就是比半橋式和全橋式容易驅動。
首先分析推挽是轉換器動作原理。
然後說明推挽式電路設計與元件選用。
最後完成推挽式並以實測驗證。

Converter devided into linear converter and switching-mode cinverter.
push pull has large hystersis loop,so that it supples large power compared
with forward topology.it has another adventage ,is easy to drive than
half-bridge or full-bridge .the main purpose of the thesis is to study
and design push pull converter .
First, it is detail to analysis push pull converter's theorem.afterward
the push pull converter is described including the component and circuit
design .finally push pull converter is implemented and demonstrated

摘要............................................................Ⅰ
誌謝............................................................Ⅱ
目錄............................................................Ⅲ
圖目錄..........................................................Ⅴ
表目錄..........................................................Ⅶ
第一章 緒論
1.1研究背景與動機................................................1
1.2電路架構......................................................2
1.3論文大綱......................................................3
第二章 常用轉換器
2.1順向式轉換器..................................................4
2.2返馳式轉換器..................................................8
2.3半橋轉換器....................................................10
第三章 電路原理分析
3.1推挽式轉換器動作原理介紹 ...................................13
3.2電流模式與電壓模式控制IC比較與應用....................... 17
第四章 電路設計與實作
4.1設計流程 ....................................................22
4.2電路元件設計公式..............................................24
4.3設計實例......................................................27
4.4變壓器繞製分為分開繞與並繞....................................31
4.5實測數據.................................................... 33
4.6各電壓輸出波形................................................36
4.7實測數據......................................................44
第五章 結論與未來發展
5.1結論..........................................................46
5.2未來發展......................................................46
參考文獻......................................................47

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