本文旨以非接觸式感應充電技術設計一個充電杯，俾提供藍芽耳機、助聽器、錄音筆或MP3等小功率可攜式電子產品之充電。文中首先論述非接觸式電能傳輸之原理與應用範疇，接著提出系統所使用之電路架構與感應結構並說明其特性。就電路設計方面，係以鬆耦合變壓器模型分析開始，探討漏感成份對感應傳輸之影響，繼而導入諧振電路設計，改善電路阻抗特性，增加系統性能。就控制電路部份，俾以單晶片實現選擇性觸發功能與變頻控制，針對充電物品的擺放位置開啟初級側線圈與調整系統操作頻率，使兩者得到較好的配置。最後，將所設計的感應充電系統予以實際電路實現，使用200mAh之鋰高分子電池作為充電負載，並量測其實驗結果與數據。

This thesis presents the design of contactless inductive charging cup for low power portable electric appliances, such as bluetooth, hearing aid, pen recorder or MP3. First, the fundamental principle and application fields of contactless power transmission are discussed, and the circuit topology and the coupling structure which this system adopts are proposed. As for circuit design, since the contactless power transmit ability is restricted by loosely coupled power transformer, thus the design of the resonant circuit can improve the characteristic of impedance and the system performance. When it comes to control circuit, while variation of the placement of charged objects will cause difference in the parameter of resonant circuit; hence, microchip is utilized to implement selective excitation circuit and variable frequency control. Finally, a 200mA Li-Polymer battery is applied as load to actualize the designed system, and the experimental results and data are provided.

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