臺灣博碩士論文加值系統

本論文採用RFID傳遞能量的原理，經由電磁耦合的方式將能量傳遞給接收充電晶片，來達成無線充電，最後建立閉迴路系統完成電路自動控制。
本論文會分別討論如何設計供電端功率放大器，接收晶片，以及系統整合。在供電端將會重新設計放大器，並且將效率從60%提升到90%。
在充電端將原本負責通訊的電路由負載位移調變(LSK)改為振幅位移鍵調變(ASK)，並且將通訊與傳遞能量的通道錯開，訊號發射器改採用433MHz的頻道得以提升無線充電的穩定度，此晶片會由TSMC 2P4M 0.35um CMOS製程來實現。
最後會建立起無線充電系統，供電端提供電力給充電端，充電端會將充電端的電壓訊息回傳給供電端，當資料回傳給供電端時會藉由升壓式直流轉直流轉換器控制放大器的電壓以調整接收晶片的充電情形，以完成閉迴路充電系統。

The thesis uses the RFID contact-less powered theory which the power transfer to charging chip via coil coupling, and chip use it to achieve wireless charging. Finally, we build the closed-loop system to achieve circuit auto control.
This thesis will discuss how to design the power source terminal''s power amplifier, charging chip, and system integration. At design power source terminal, we redesign the power amplifier that the efficiency increased from 60% to 90%. At design charging chip terminal, we use TSMC 2P4M 0.35um CMOS process to redesign the communication circuit. New communication circuit is the ASK transmitter. The ASK transmitter which use 433MHz channel as the communication channel, by separated out the communication channel and the energy transfer channel, it increase the stability of wireless charging.
Finally, the wireless charging system will be built. When chip gets power from the power source terminal, it will send a voltage message to the power source terminal. Therefore, when the power source terminal gets the voltage message, it used to control DC-DC converter that by change power amplifier’s voltage to adjust charging chip. From this experiment process, we finally finish the closed-loop system.

摘要............................................i
ABSTRACT........................................ii
誌謝............................................iii
目錄............................................iv
圖目錄..........................................vii
第一章 緒論....................................1
1.1 研究動機................................1
1.2 研究背景................................2
1.3 研究方法................................4
1.4 論文架構................................4
第二章 無線傳電功率放大器......................5
2.1 切換式功率放大器........................5
2.2 E類功率放大器...........................8
2.3 電感耦合式E類放大器.....................15
2.3.1 自感(L)與互感(M)........................15
2.3.2 耦合等效阻抗無型........................17
2.3.3 電感耦合式E類功率放大器.................19
第三章 射頻迴授無線充電晶片....................23
3.1 晶片介紹................................23
3.2 主動開關切換式整流器....................24
3.3 鋰電池充電電路..........................27
3.3.1 鋰電池充電流程..........................27
3.3.2 鋰電池充電電路..........................28
3.3.2.1 定電流模式..............................29
3.3.2.2 定電壓模式..............................30
3.3.3 充電電路模擬............................31
3.4 時脈產生電路............................33
3.5 連續漸進式類比數位轉換器................34
3.5.1 連續漸進式類比數位轉換器動作原理........34
3.5.2 連續漸進式類比數位轉換器電路架構........35
3.6 曼徹斯特編碼............................37
3.7 振幅移鍵調變發射器......................38
第四章 無線充電系統............................39
4.1 無線充電系統架構........................39
4.2 系統架設................................40
4.2.1 供電端架設..............................40
4.2.1.1 功率放大器(Power Amp.)..................40
4.2.1.2 振幅移鍵調變接收器(ASK Receiver)........40
4.2.1.3 MCU解碼.................................42
4.2.1.4 DAC.....................................43
4.2.1.5 升壓式直流轉直流轉換器..................43
4.2.2 充電端..................................45
4.3 系統量測................................47
4.3.1 電感耦合式E類放大器量測.................47
4.3.2 充電端晶片量測..........................49
4.3.2.1 整流電路................................49
4.3.2.2 數位電路................................53
4.3.2.3 充電電路................................54
4.3.2.4 振幅移鍵調變發射器......................56
4.3.3 振幅移鍵調變接收器......................57
4.3.4 電壓控制測試............................58
4.3.5 充電系統量測............................60
第五章 論文結論與未來展望......................62
5.1 論文結論................................62
5.2 未來展望................................62
參考文獻........................................63

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