陳秋麟臺灣大學：電子工程學研究所劉宇祥Liu, Yu-SiangYu-SiangLiu2007-11-272018-07-102007-11-272018-07-102007http://ntur.lib.ntu.edu.tw//handle/246246/57678本篇論文在研究無線透膚電能轉換系統，目的是製造出能將直流電壓源轉換為弦波與定頻電壓輸出的電源轉換器。首先參考各式電源供應器，並且根據電能轉換系統的需求從中選取振鈴扼流圈轉換器作為電路的基礎，再針對振盪頻率與操作方式進行修改，使電路成為提供固定頻率與弦波電壓輸出的電源供應系統。 在電路方面將探討儲能網路的振盪原理與回授信號的控制機制。利用儲能元件電容與變壓器初次繞阻的激磁電感間的自然共振決定了電路的振盪頻率，同時回授作為開關元件的控制信號，使電路能週而復始的振盪，並從變壓器的二次測取得接近弦波輸出的波形。 除此之外，若是為了縮小電路的面積使電路能夠積體化，我們也能夠採用更簡單與穩定的環式振盪架構，來產生定頻的方波輸出信號，其後連接上電容與變壓器同樣能將能量以弦波的方式傳入體內。This thesis focuses on the wireless transcutaneous power conversion system and its goal is to develop a converter which converts DC input voltage to sinusoidal output voltage with constant frequency. First, different topologies of power converters are considered and the ringing choke converter (RCC) is chosen according to the required specifications of the targeting system. After that, a power conversion system is proposed based on the operation of RCC to provide sinusoidal output voltage with fixed frequency. The oscillation principles of the energy-storage circuit and the control mechanism of the feedback signals are discussed in the thesis. The oscillation frequency is determined by natural resonance between the capacitance in the energy-storage circuit and the leakage inductance on the primary side of the transformer. At the same time, the feedback signals are utilized to control the switch devices such that the oscillation can be sustained and the sinusoidal output voltage can be obtained on the secondary side of the transformer. Furthermore, if the area of the converter is preferred to be decreased for integration, a ring oscillator is presented to generate a square wave output with fixed frequency. By connecting the ring oscillator to a capacitor and a transformer, it can also transmit energy into the human body using sinusoidal wave and can be applied to the wireless transcutaneous power conversion system.第一章 序論 1.1研究背景與動機……………………………………………………1 1.2論文架構……………………………………………………………3 第二章 切換式電源供應器簡介 2.1概述…………………………………………………………………4 2.2順向式轉換器電路…………………………………………………5 2.3返馳式轉換器電路…………………………………………………7 2.4振鈴扼流圈轉換器電路……………………………………………10 2.5小結…………………………………………………………………12 第三章 開關振盪器電路介紹 3.1概述…………………………………………………………………13 3.2開關元件與儲能網路………………………………………………13 3.3開關電路之初始振盪………………………………………………17 3.4五階段之穩態振盪操作……………………………………………20 3.5SIMetrix模擬波形圖………………………………………………26 3.6實驗波形圖作………………………………………………………29 3.7小結…………………………………………………………………30 第四章 環式振盪供電系統 4.1概述…………………………………………………………………31 4.2環式振盪器…………………………………………………………31 4.3電路模擬與實驗……………………………………………………34 4.4小結…………………………………………………………………37 第五章 結論 5.1總結…………………………………………………………………38 5.2未來發展方向………………………………………………………38 參考文獻…………………………………………………………………39en-US無線透膚電能轉換Wireless TranscutaneousPower Conversionthesis