本論文提出可重組之光獵能積體電路及具光獵能之光感測系統之設計技術。
本論文提出了一個應用於室內光伏獵能之單路徑三開關單電感雙輸入雙輸出轉換器管理光伏能模組、電池以及負載間的能量轉換，此轉換器透過減少共用電感開關以提升從光伏模組－電池－負載路徑的電能轉換效率，並且可重組成雙路徑三開關或組合成雙路徑六開關之單電感雙輸入雙輸出轉換器以提升不同應用下不同光能及負載能量變化下之效率，此轉換器更可進一步的擴充為並聯單路徑三開關單電感轉換器，以便應用於多光伏模組或負載之應用，其重組其擴充能力可透過設計單一晶片完成並提升應用彈性。此晶片以0.5-μm CMOS 製程實現，其尺寸為1.24 mm2，在單路徑三開關、雙路徑三開關及雙路徑六開關之架構下分別可達到95%、95%及89%之效率，並且僅消耗130 nA、130 nA及140 nA靜態電流。此論文亦提出了一個適性調整的部分開路電壓之最大功率追蹤電路，以達到在不同光照條件下自動調整最大功率電壓相對於開路電壓之比例的能力，此晶片以0.5-μm CMOS 製程實現，適性調整的部分開路電壓之電路僅消耗極低的100 pA之電流，量測結果顯示此電路在100–1000 lux照度下達到大於>99.6%之追蹤效率，勝過現有使用傳統適性調整的部分開路電壓最大追蹤方法之文獻。
最後，本論文為了達到共用光伏二極體同時偵測光的方向、強度並獵取光能，提出了一個自供電單電感16輸入光處理系統。此論文提出之光處理系統結合了低成本、輕量且薄型的Fresnel鏡片及光伏模組以達到二維的光方向偵測能力。Fresnel鏡片將光線聚集在光伏模組上可提升光方向偵測的靈敏度以及獵取的能量，因此提升可量測的照度範圍。透過Fresnel鏡片的使用，所提出的光偵測系統可應用於室內或遠距離低光照的環境下，並且不需使用大面積的光伏模組。此系統可量測之入射光角度範圍為±65°為所有文獻最大。

This dissertation proposed design techniques for reconfigurable light-energy harvesting IC and light-processing system with simultaneous energy harvesting and light sensing.
This dissertation proposes a single-path three-switch (1P3S) single-inductor dual-input dual-output (SIDIDO) converter to manage power among a photovoltaic (PV) module, battery, and load for indoor PV energy harvesting. The 1P3S converter increases efficiency in the PV-to-battery-to-load path by eliminating inductor-sharing power switches, and can be reconfigured to a dual-path three-switch (2P3S) or combined into a dual-path six-switch (2P6S) SIDIDO converter for high energy efficiency in various applications with different PV and load power profiles. It can be further extended to a paralleled-1P3S converter for multiple PV modules and loads with a single shared inductor. The capability to be reconfigured and extended is achieved in a single-chip design with a proposed controller, thereby increasing application flexibility. The chip, including the three power switches and controller, is fabricated in 0.5-μm CMOS process with a 1.24 mm2 chip area. In the 1P3S, 2P3S, and 2P6S configurations, the measured peak efficiencies are 95%, 95%, and 89%, while the measured quiescent currents are 130 nA, 130 nA, and 140 nA, respectively. To harvest indoor light energy via PVs, this dissertation proposes an adaptive-fractional-open-circuit-voltage (AFOCV) maximum power point tracking (MPPT) circuit to automatically adjust the FOCV fraction under different illuminances for amorphous PV modules. Designed in 0.5-μm CMOS process, the AFOCV circuit consumes an ultra-low average current of 100 pA. Over 100–1000 lux illuminance, the measured MPPT efficiency with AFOCV is >99.6%, which outperforms that of other state-of-the-art EH ICs with conventional FOCV methods.
To simultaneously sense light direction/intensity and harvest energy with shared photodiodes, a self-powered light-processing system is proposed. For advanced applications, this dissertation proposes a light-sensing system comprising a low-cost, lightweight, thin plastic Fresnel lens (F-lens) and PD modules to achieve 2D light direction sensing. The F-lens concentrates incident light on the PD modules to increase sensitivity to the light angle and harvested energy, thereby increasing the measurable ranges of illuminance. The enhancement to harvesting energy through the F-lens allows the proposed light-sensing system to be applied to indoor or long-distance dim-light sensing applications without large-area PD modules. Compared with prior arts, this work has the highest measurable incidence angle range of ±65°.

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