指導教授：李致毅臺灣大學：電子工程學研究所姜韜Chiang, TaoTaoChiang2014-11-302018-07-102014-11-302018-07-102013http://ntur.lib.ntu.edu.tw//handle/246246/263883在本論文中，實現了一種使用 0.18-μm CMOS 製程製作之射頻能量接收器， 其中包含以下這三個重要的部分－整流器，直流轉直流轉換器以及以能量管理電 路。 這裡所採用的全橋式差動整流器，能量之轉換效率可接 80%並且擁有近 0.65V 的開路電壓，提供電路以簡單的方式起始操作。 接著是一個直流轉直流的轉換器，其目的為穩定以及提升整流器之輸出電壓 VDC到一個兩伏的電壓值，高效能的能量路徑架構，採用自動調整之電源管理能夠 達到接近最佳化的能量轉移；此外此電源管理採用全新之非同步開路以及重複循 環之操作以利降低耗電。啟動電路也為設計項目之一。 最終量測之結果在外部能量於-17dBm 時即能使電路起始操作，在輸入能量為 -15 dBm 時，整體能量傳輸效益為 35.7％，而在輸出電壓為兩伏時，靜態電流為1.56 安培。In this thesis, an RF energy harvesting system has been implemented in 0.18um CMOS technology, which composed of three critical parts- a rectifier, a DC-DC converter and a power management circuit. A full-bridge differential rectifier is used in this design which can achieve close to 80% power conversion efficiency (PCE), and an output open-circuit voltage of roughly 0.65 V which can provide enough voltage for kick-up the system easily. And the following DC-DC converter is using to stabilize and boost the output voltage of the rectifier VDC to a 2-V output voltage. An efficient power path structure with adaptive power management is proposed to maintain close-to-optimal PCE. The control circuit consumes low power by adopting a novel open-loop asynchronous implementation and duty-cycled operation. A startup circuit is also presented. Measurement results show minimum PIN for startup of –17 dBm, end-to-end PCE of 35.7% at PIN of –15 dBm, and quiescent current of 1.56A at VOUT of 2 V.摘要 -------------------------------------------------------------------------------------------------- I ABSTRACT --------------------------------------------------------------------------------------- II CONTENTS -------------------------------------------------------------------------------------- III LIST OF FIGURES ------------------------------------------------------------------------------- V LIST OF TABLES ----------------------------------------------------------------------------- VIII Chapter 1 Introduction ------------------------------------------------------------------------ 1 1.1 Motivation --------------------------------------------------------------------------------- 3 1.2 Thesis Organization ---------------------------------------------------------------------- 3 Chapter 2 Proposed System and Key Building Blocks --------------------------------- 5 2.1 Introduction ------------------------------------------------------------------------------- 5 2.2 Architecture ------------------------------------------------------------------------------- 7 2.2.1 Matching Network -------------------------------------------------------------- 9 2.2.2 Rectifier ------------------------------------------------------------------------ 11 2.2.3 Switched-Inductor Boost Converter ---------------------------------------- 14 Chapter 3 Proposed Adaptive Control for PCE Optimization----------------------17 3.1 General Consideration ----------------------------------------------------------------- 17 3.2 PCE Optimization ---------------------------------------------------------------------- 18 3.2.1 Matching Network and Rectifier’s PCE Optimization ------------------ 21 3.2.2 Boost Converter’s PCE Optimization -------------------------------------- 24 3.2.3 Proposed Control Scheme --------------------------------------------------- 24 Chapter 4 Startup Circuit and Reference Generation -------------------------------- 27 4.1 Startup Architecture -------------------------------------------------------------------- 27 4.2 Bandgap and Duty-Cycled Circuit Architecture ----------------------------------- 28 Chapter 5 Measurement Results--------------------------------------------------------- 32 5.1 RF Energy Harvester Measurement ------------------------------------------------- 32 5.2 Extension Discussion ------------------------------------------------------------------ 37 Chapter6 Conclusion ----------------------------------------------------------------------- 39 6.1 Contribution ----------------------------------------------------------------------------- 39 6.2 Future Work ----------------------------------------------------------------------------- 40 Bibliography ------------------------------------------------------------------------------------- 417952355 bytesapplication/pdf論文公開時間：2018/11/05論文使用權限：同意有償授權(權利金給回饋學校)能量收集整流器直流轉直流轉換器啟動電路超低功耗技術thesishttp://ntur.lib.ntu.edu.tw/bitstream/246246/263883/1/ntu-102-R99943043-1.pdf