本文研製一具數位控制器之可調式全橋LLC諧振架構之高壓脈衝電源供應器。首先，本文推導出包含寄生電容效應之系統轉移函數，以挑選適當之系統諧振元件。其次，所提之系統在脈波輸出之條件下，依然可達到零電壓切換，減少系統之功率損失。再者，本文將突發模式PWM控制方法進行修改，並加入變頻控制機制，以消除輸出電壓突波。除此之外，所實現之原型機是利用輔助繞組進行電壓回授控制，以簡化高壓電路輸出端回授電路之設計及提供電氣隔離。最後，本文根據所挑選之系統參數進行電腦模擬，並以實測結果驗證所提系統之可行性。

This thesis presents an adjustable pulse-width high voltage pulsed power supply based on the full-bridge LLC resonant topology with a digital controller. First, the system transfer function including parastic capacitance effect is derived to select the resonant component. Moreover, the proposed system can achieve zero voltage switching to reduce power loss even under pulsed output. In addition, the modified burst PWM control is combined with variable frequency control to eliminate the output voltage spike. Furthermore, the voltage feedback control is implemented by using the auxiliary winding to simplify the circuit design and to provide electrical isolation. Finally, both the computer simulation and experimental results are used to verify the feasibility and validity of the proposed system.

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