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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 陳怡然 | |
dc.contributor.author | Kuang-Hao Kung | en |
dc.contributor.author | 龔光豪 | zh_TW |
dc.date.accessioned | 2021-06-08T03:09:37Z | - |
dc.date.copyright | 2017-07-20 | |
dc.date.issued | 2017 | |
dc.date.submitted | 2017-06-02 | |
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/20906 | - |
dc.description.abstract | 隨著可攜式電子產品蓬勃的發展,例如可攜式電話、行動電視、數位相機和個人數位助理…等,這些可攜式裝置皆是以電池為供電來源,而電池的使用時間是使用者相當在意的特性,因此,如何有效使用和分配電池有限能量是電源管理系統重要的課題。無線通訊系統上逐漸增長的能耗問題,主要原因來自於行動通訊裝置的高數據速率以及大頻寬。無線通訊系統中,例如:寬頻分碼多工(WCDMA)和長期演進技術(LTE),射頻功率放大器在通訊系統中為主要的耗能來源之一,而為了降低功率放大器的能源損耗,最廣為人知的方法是利用電源供應調變器追蹤射頻訊號封包並且提供相對應的供應電壓給予功率放大器做使用,因此將使得整體功率放大器的效率提升。這個方法名為封包追蹤技術。
本論文提出的電源供應調變器電路主要包含兩個部分,第一部分是使用兩個切換式轉換器用來提供低頻訊號功率,此電路可提升轉換器的輸出電流,並且降低對於線性放大器的電流需求。第二部分則是使用線性放大器用來提供高頻訊號功率,此電路可提供高頻寬以及降低輸出雜訊。 本論文使用0.35微米互補式金屬氧化物半導體製程實現,晶片面積為1.51×1.05 mm2。追蹤的訊號為1/5/10/20 MHz之弦波及20 MHz LTE之封包訊號,可操作的輸出電壓範圍為0.4 ~3.9 V,可達到的效率為82.3 %。 | zh_TW |
dc.description.abstract | With the growing development for portable devices, such as cellular phones, mobile TV, camera recorder and PDAs, these portable devices use battery as the power source and customers are concerned about the battery life. As a result, how to use the battery energy efficiently is the most concerned problem. There has been an increasing power consumption concern for wireless communication. One of the major reasons is the demand for higher data rates and wider bandwidth in portable devices. The power amplifier (PA) is a main part, which accounts for a major portion of the power consumption in wireless communication systems, (e.g., wideband code-division multiple access (WCDMA), and long-term evolution (LTE)). To reduce power dissipation in these power amplifiers, one promising solution is to employ a supply modulator (SM) that tracks the envelope of the RF input and modulates the PA supply voltage accordingly. Therefore, it can improve the whole efficiency of PA. This technique is known as envelope-tracking (ET) technique.
In this thesis, the supply modulator includes two parts. First part is the dual-switching converter, which provides low frequency content of the envelope waveform, increases the output current of the switching converter, and decreases the current demand from the linear amplifier. The additional linear amplifier provides high frequency content of the envelope waveform, which has high bandwidth and low output noise. The chip is fabricated in a 0.35 μm CMOS process, and its size is 1.51×1.05 mm2. The test signals are 1/5/10/20 MHz sine waves and 20 MHz LTE envelope. The output voltage range and the peak efficiency are 0.4 ~3.9 V and 82.3 %, respectively. | en |
dc.description.provenance | Made available in DSpace on 2021-06-08T03:09:37Z (GMT). No. of bitstreams: 1 ntu-106-R03942143-1.pdf: 3595879 bytes, checksum: 48c139328bdebef1da868707d6a81748 (MD5) Previous issue date: 2017 | en |
dc.description.tableofcontents | 中文摘要 I
ABSTRACT III 目錄 IV 圖目錄 VI 表格目錄 I Chapter 1 概論 1 1.1 研究背景與動機 1 1.2 論文架構 5 Chapter 2 封包追蹤技術之電源供應調變器簡介 6 2.1.1 線性放大器(Linear Amplifier) 6 2.1.2 切換式轉換器(Switching Converter) 8 2.1.3 架構比較 10 2.1.4 串聯式混合型切換放大器(Series hybrid switching amplifier) 10 2.1.5 並聯式混合型切換放大器(Parallel hybrid switching amplifier) 12 2.2 文獻回顧 13 Chapter 3 封包追蹤技術之電源供應調變器設計 26 3.1 規格簡介 28 3.2 電源供應調變器電路架構 30 3.3 電流回授迴路分析 32 Chapter 4 電路設計與模擬 36 4.1 製程介紹 36 4.2 線性放大器(Linear amplifier) 37 4.3 運算放大器(Operational Amplifier) 45 4.4 能隙參考電路(Bandgap Reference) 47 4.5 遲滯比較器(Hysteresis Comparator) 51 4.6 斜坡產生電路(Ramp Generator) 54 4.7 非重疊時序產生器(Non-overlapping Clock Generator) 57 4.8 閘極驅動器(Gate Driver) 59 4.9 電路模擬結果 59 Chapter 5 佈局及量測結果 63 5.1 晶片佈局 63 5.2 印刷電路板設計 64 5.3 量測環境設定 67 5.4 量測結果與討論 71 5.4.1 量測結果 71 5.4.2 量測結果討論 91 Chapter 6 結論 94 6.1 結論 94 6.2 未來展望 95 參考文獻 96 | |
dc.language.iso | zh-TW | |
dc.title | 20 MHz LTE封包追蹤技術之CMOS電源供應調變器 | zh_TW |
dc.title | CMOS Power-Supply Modulator for 20 MHz LTE Envelope Tracking Technique | en |
dc.type | Thesis | |
dc.date.schoolyear | 105-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 陳景然,陳建中,劉邦榮 | |
dc.subject.keyword | 封包追蹤技術,電源供應調變器,功率放大器,切換式轉換器,線性放大器, | zh_TW |
dc.subject.keyword | Envelope tracking,Supply modulator,Power amplifier,Switching converter,Linear amplifier, | en |
dc.relation.page | 99 | |
dc.identifier.doi | 10.6342/NTU201700868 | |
dc.rights.note | 未授權 | |
dc.date.accepted | 2017-06-02 | |
dc.contributor.author-college | 電機資訊學院 | zh_TW |
dc.contributor.author-dept | 電信工程學研究所 | zh_TW |
顯示於系所單位: | 電信工程學研究所 |
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