本論文係探討全橋相移共振式高壓電源轉換器之研製。本論文中，所採用之高壓轉換器電路架構，係以全橋相移轉換電路驅動一串聯疊接式半波倍壓負載電路之諧振槽，藉此激發Ｘ光。藉由全橋驅動電路之相移控制技術，可控制諧振槽之輸入阻抗相位，以調節輸出電壓。
本文針對所提出之全橋相移轉換器電路架構，探討其動作原理並進行電路增益推導，據以設計電路參數諸元。最後，研製一輸出電壓50 kV~60 kV之雛型電路，以驗證電路性能與可行性。

In this thesis, a full-bridge resonant high-voltage converter with phase-shift control for X-Ray tubes is studied and implemented. The first stage is a full-bridge phase-shifted inverter with a series resonant tank. The phase-shifted angle could be changed to adjust the output voltage for X-ray applications. The second stage is a cascoded half-wave voltage multiplier with a high-voltage transformer. The main aim of this stage is to generate enough high output voltage for driving X-Ray tubes. The introduction and choice of each stage for the proposed converter are discussed in this thesis. Then, the operating principles and math analysis of the proposed converter are presented. Finally, a 400 V input and 50-60 kV/120 W laboratory prototype with adjustable voltage output is implemented to verify the theoretical analysis.

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