使用電感耦合E類放大器之高效率無線充電系統

A High Efficient Wireless Charging System Using an Inductive Coupling Class-E Power Amplifier

盧建智(Chien-Chih Lu)

指導教授 ： 邱弘緯

國立臺北科技大學/電資學院/電腦與通訊研究所/碩士(2011年)

摘要

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。

關鍵字

電感耦合E類功率放大器 ； 閉迴路充電系統

並列摘要

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.

並列關鍵字

Inductive Coupling Class-E Power Amplifier ； closed-loop charger system

參考文獻

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