本論文提出兼具定功率控制機制之磁控管驅動系統，此研究乃考量現今微波傳能應用日益成熟，然而磁控管負載確常因輸出微波能穩定度有限，可能導致腔體負載接收能量不均。因此，本文設計高頻換流器作為主電源架構，並加入諧振電路、變壓器、倍壓電路及磁控管負載，進而完成磁控管驅動系統，再輔以定功率控制機制進行驅動系統調節，以使磁控管驅動系統具備定功率輸出能力。其中本文於電路架構設計上，並已減少磁性元件使用，進而可降低系統體積及建置成本，同時於控制規劃方面，並已利用電壓電流回授電路及脈波頻率調變技術，以使系統穩定驅動微波電能。至為驗證本驅動系統之實際應用價值，本文已建置一套實體驅動系統及進行實測，並由實驗結果證實本驅動系統確已具有微波功率輸出之優質效能，研究成果可提供微波能相關產業應用參考。

This thesis proposes a magnetron-driven system with constant-power control mechanism. It was found that although the microwave energy is being widely applied to the modern industry, yet the load of the cavity is hard to evenly receive the energy because of limited stability of the microwave energy output. Therefore, a high-frequency inverter is designed in this thesis as the main circuit architecture that is further integrated with resonant circuit, transformer, voltage-doubling circuit as well as magnetron load so as to complete a magnetron-driven system. Meanwhile, with the designated control mechanism, the system is enhanced with the capability of constant power output. In the topology of this proposed circuit, the use of magnetic components is reduced for system size and design cost. The signal-feedback circuit with pulse–frequency-modulation technique is utilized for stabilizing the microwave energy. In order to verify the practicality of this driving system, a prototype of the magnetron-driven system is established for experimental tests. Test results confirm the satisfactory performance of the system for the microwave-energy output, which is served as a beneficial reference for microwave industry applications.

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