臺灣博碩士論文加值系統

本論文的內容是設計一個直流電壓轉換直流電壓之單電感雙輸出交換式電源轉換器，它具有極高的轉換效率以及快速暫態響應，並可大幅度降低交互調節現象的影響。
本論文所提出的交換式轉換器，利用以電流對時間積分電路為核心，使整體電路系統的操作頻率可隨著電流負載的需求作調整，進而最小化交互調節現象；而根據操作頻率可隨著電流負載的需求作調整，在相對輕負載時整體電路操作在較低的工作頻率，減少轉換時的損耗，獲得較高的轉換效率。在不同電流負載下的交互調節率皆小於7.60%；而不同電流負載下的轉換效率皆大於85.13%，最大轉換效率可達到95.50%(Iload1=300mA、Iload2=75mA)。它適合用於可攜帶式電子產品(如手機、PDA等…)以及具DVS應用的產品(如具休眠模式的電子產品等…)。
本論文所提出的交換式電源轉換器包含了錯誤放大器、比較器、電感電流感測電路、電流對時間積分電路、數位邏輯電路以及驅動緩衝電路。以TSMC 0.18um互補式金氧半導體製程來實現，其線穩壓率以及負載穩壓率分別皆小於1.77%以及2.57%；暫態反應時間小於13.49us。

In this paper, a single inductor dual output (SIDO) DC-DC converter is proposed, which features a high conversion efficiency, fast transient response, and minimized cross regulation.
The proposed SIDO DC-DC converter comprises an error amplifier, a comparator, an inductor current sensing circuit, a current integrator, digital logics, and gate drive buffers. With the proposed current integrator, the system operating frequency can be adjusted according to the load condition thus minimizing the cross regulation. When the proposed SIDO DC-DC Converter is operated at a light load condition, the system operating frequency will be decreased to reduce the switching loss achieving higher power efficiency.
The simulations show that the cross-regulation is less than 7.60% across the load range of the proposed SIDO DC-DC converter. And power efficiency higher than 85.13% is observed with peak power efficiency of 95.5% (ILOAD1 = 300 mA, ILOAD2 = 75 mA). With aforementioned advantages, the proposed SIDO DC-DC converter is suitable for portable electronics (such as smartphones, PDA, and handheld GPS) and dynamic voltage scaling applications.
The proposed SIDO DC-DC converter is fabricated using TSMC 0.18 um CMOS process, the line/load regulation simulation results are less than 1.77% and 2.57%, respectively. And the load transient recovery time is less than 13.49us.

目錄
中文摘要
Abstract
目錄
圖目錄
表目錄
第一章 序論
1.1 研究背景
1.2 研究動機
1.3 論文架構
第二章 交換式直流電源轉換器基本原理
2.1 連續導通模式與不連續導通模式
2.2 基本降壓型轉換器連續導通模式之穩態分析
2.3 單電感多輸出降壓型交換式電源轉換器
2.4 單電感雙輸出直流電源轉換器相關設計參數
2.4.1 線穩壓率(Line Regulation)
2.4.2 負載穩壓率(Load Regulation)
2.4.3 輸出電壓漣波(Output Voltage Ripple)
2.4.4 交叉調節率(Cross Regulation) 以及暫態響應
2.4.5 轉換效率(Efficiency)
第三章 單電感雙輸出直流電源轉換器發展現況
3.1 單電感-雙輸出直流電源轉換器操作狀態介紹
3.2 分時多工(TIME-MULTIPLEXING)操作模式
3.2.1 CCM(Continuous-Conduction mode)工作模式
3.2.2 DCM(Discontinuous-Conduction mode)工作模式
3.2.3 PCCM(Pseudo Continuous-Conduction mode)工作模式
3.3 能量分配(ORDER ENERGY)操作模式
3.3.1 OPDC(Ordered Power-Distributive Control)工作模式
3.3.2 BCB(Buck Combine Boost) 工作模式
3.3.3 ECM(Energy Conservation Mode)工作模式
3.4 單電感雙輸出電源轉換器之功率消耗分析與探討
第四章 高轉換效率及最小化交互調節之單電感雙輸出降壓型交換式電源轉換器
4.1 單電感-雙輸出降壓型交換式電源轉換器最小化交叉調節
4.2 提高單電感-雙輸出降壓型交換式電源轉換器轉換效率
4.3 高轉換效率及最小化交互調節之單電感-雙輸出降壓型交換式電源轉換器電路實現與分析
4.3.1 功率電晶體之分析與設計
4.3.2 誤差放大器之分析與設計
4.3.3 比較器之分析與設計
4.3.4 電流感測電路之分析與設計
4.3.5 電流對時間積分電路之分析與設計
4.3.6 邏輯電路之分析與設計
4.3.7 驅動電路之分析與設計
第五章 模擬結果
5.1 電路模擬結果
5.1.1 線調節率(Line Regulation)
5.1.2 負載調節率(Load Regulation)
5.1.3 暫態反應(Transient Response)
5.1.4 交叉調節率(Cross Regulation)
功率轉換效率(Power Efficiency)
5.1.5 與其他論文章比較
5.2 晶片實現結果
5.2.1 佈局考量
5.2.2 佈局圖
5.2.3 量測考量
第六章 結論
Reference

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