【正文】 摘 要 I 摘 要 隨著科學(xué)技術(shù)的發(fā)展，各種不同功能的便攜式電子產(chǎn)品充斥著當(dāng)今社會，如手機、 PDA、數(shù)碼播放器和相機、筆記本電腦等。在實際運用這些設(shè)備中，每個產(chǎn)品都對應(yīng)一個與之匹配的充電器。這種方式 既 浪費資源、增加產(chǎn)品的成本， 且 不利于環(huán)保 的要求。其問題的關(guān)鍵所在就是充電器不具備通用性，更為重要的是，絕大部分電子產(chǎn)品都是傳統(tǒng)的有線充電模式，對使用者來說充電比較麻煩。而具有統(tǒng) 一標準的無線充電器具有如下優(yōu)勢：方便、多機共用、換機不換充電器，這些優(yōu)勢可以有效地解決上述問題。 基于此，本論文在無線充電方面做了一些研究。其 內(nèi)容主要集中在以下幾個 方面：概述了無線充電技術(shù)原理及無線充電技術(shù)的發(fā)展情況，針對影響無線充電系 統(tǒng)指標的關(guān)鍵技術(shù)進行分析，特別突出了能量發(fā)射模塊和電源管理模塊 的設(shè)計特點 ,通過不斷的測試和論證， 為提高 整套系統(tǒng)的傳輸 效率 和充電效率提出了幾種解決方案。通過針對該設(shè)計存在的不 足，對未來的無線充電技術(shù)進行展望。最后就本論文涉及的核心內(nèi)容進行總結(jié)，旨在說明本課題研究的成果、價值 以及 意義。 關(guān)鍵字 ： 無線傳能 ， 無線充電 ， 電磁感應(yīng) ABSTRACT ABSTRACT II ABSTRACT With the development of science and technology, a variety of portable electronic products bee more and more popular, such as mobile phones, PDA, digital cameras and players, PC and so on. In reality, each electronic product has a matched charger. However, it will not only increase the cost of products and waste resource, but also be harmful to the environment. What’s more, as all those chargers are not universal, it causes troubles to the users. Moreover, the majority of electronic chargers are wired, so charger is relatively inconvenient for the users. The wireless charger with a unified standard has the following advantages: convenience, shared charger to different electronic products. These advantages can solve the above problem effectively. Based on this, this thesis has done some research on the wireless charging. It mainly focused on the following areas: an overview of wireless charging technology principle and the development of wireless power technologies， also and the key technical analysis indicators to the wireless charging system, in particular, this thesis highlighted the energy transmitter module and power management module design features, through continuous testing and verification. To improve the transmission efficiency of the entire system and the charging efficiency, we proposed several solutions. For the shortings of the design, the future prospect of wireless charging technologies has been discussed. Finally, this thesis summarizes involving the core content of this subject, aiming to say the research achievement, value and significance. Key Words: Wireless energy transmission, Wireless charging, Electromagic induction Abstract 電子科技大學(xué)學(xué)士學(xué)位論文 III 目 錄 第 1 章 緒論 ..............................................................................................................1 無線電充電技術(shù)的概述 .....................................................................................1 引言 ...........................................................................................................1 國內(nèi)外研究發(fā)展 .......................................................................................1 無線充電技術(shù)的前景與應(yīng)用 ...................................................................3 課題依據(jù)及選題依據(jù) .........................................................................................3 第 2 章 無線供電基本理論 ......................................................................................5 引言 .....................................................................................................................5 電磁波方案 .........................................................................................................5 無線電傳播機制 .......................................................................................5 無線電傳播特性 .......................................................................................6 電磁波無線供電應(yīng)用實例 .......................................................................7 微波供電方案 .....................................................................................................8 微波無線電能傳輸特性 ...........................................................................8 微波無線電能傳輸空間傳輸理論 ...........................................................8 頻率的選擇 ...............................................................................................9 微波供電應(yīng)用實例 ...................................................................................9 磁耦合無線供電方案 .......................................................................................10 磁耦合無線供電基本理論 .....................................................................10 磁耦合供電工作原理 ............................................................................. 11 磁耦合方案的實例 .................................................................................13 第 3 章 無線充電系統(tǒng)原理解析 ............................................................................14 引言 ...................................................................................................................14 無線充電技術(shù)基本原理 ...................................................................................14 平面線圈的電磁場特性 .........................................................................14 近場能量耦合原理的應(yīng)用 .....................................................................16 影響充電系統(tǒng)性能的關(guān)鍵因素分析 ...............................................................17 線圈規(guī)格分析與選定 .............................................................................17 系統(tǒng)傳輸效率 .........................................................................................18 系統(tǒng)傳輸效率 .........................................................................................20 目 錄 IV 系統(tǒng)工作電路電能損耗 .........................................................................22 第 4 章 無線電系統(tǒng)的方案論證與實現(xiàn) ................................................................23 無線充電電路的方案設(shè)計 ...............................................................................23 無線充電器的 理論分析 .........................................................................23 設(shè)計方案論證 .........................................................................................23 無線充電電路的設(shè)計與實現(xiàn) ..........................................................................