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博碩士論文 etd-0704106-155135 詳細資訊
Title page for etd-0704106-155135
論文名稱
Title
具有微電刺激、神經訊號紀錄及阻抗量測電路之植入式生醫系統與應用於系統晶片散熱用途之雙放大器線圈驅動電路
Neural Stimulation、Recording and Impedance Measuring Circuitry for Implantable Bio-medical Systems and A Dual-OPA Coil Driver for SOC Heat Dissipation
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
71
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
口試日期
Date of Exam
2006-06-15
繳交日期
Date of Submission
2006-07-04
關鍵字
Keywords
系統晶片、線圈驅動、神經訊號、微電刺激、阻抗量測、植入式生醫系統
coil, SOC, neural, Bio-medical, stimulation, implantable, recording
統計
Statistics
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The thesis/dissertation has been browsed 5717 times, has been downloaded 0 times.
中文摘要
在本論文的第一部份我們提出了一個適用於植入式電刺激、神經訊號紀錄及阻抗量測應用之系統整合,包含數位控制電路(Digital controller)、雙向電流刺激器、儀表放大器(Instrumentation amplifier, IA)和類比數位轉換器(A/D converter, ADC)這四個部分,功能可依需求選擇植入式電刺激、神經訊號紀錄或是阻抗量測。
論文第二個部分中我們描述了一個使用兩個class AB之互補輸出級電路並搭配控制電路,應用上可以作為電感性負載的驅動裝置,特別是用以驅動微型馬達或是小型風扇以達到SOC應用上之散熱需求。其中也將討論到雙載子接面電晶體在CMOS製程應用上之可行性。
Abstract
The first topic of this thesis proposes a neural stimulation, recording and impedance measuring system for implantable applications. It includes a stimulation DAC, a instrumentation amplifier, an ADC, and a digital controller which decides the operation of each block according to the required functions. The function provided by the system include micro-stimulation, neural signal recording, or impedance measurement.
The second topic is to describe a dual-OPA coil driver for SOC heat dissipation. It includes two class AB complementary output drivers which can drive an inductance load, such as micro motors and fans. It also discusses the feasibility of a bipolar transistor in CMOS process.
目次 Table of Contents
摘要 i
Abstract ii
第一章 簡介 1
1.1 前言 1
1.1.1 適用於植入式電刺激、神經訊號紀錄及
阻抗量測應用之系統整合 1
1.1.2 應用於系統晶片散熱用途之雙放大器線
圈驅動電路 2
1.2 先前技術及文獻探討 3
1.2.1 植入式系統先前技術探討 3
1.2.2 線圈負載驅動電路先前文獻探討 5
1.3 論文大綱 7
第二章 適用於植入式電刺激、神經訊號紀錄及阻抗量測
應用之系統整合 8
2.1 簡介 8
2.2 系統操作模式說明 9
2.2.1 電刺激 9
2.2.2 神經訊號紀錄 9
2.2.3 阻抗量測 10
2.3 系統電路原理說明 11
2.3.1 儀表放大器 11
2.3.1.1 第二級低通濾波器之電路說明 12
2.3.1.2 第三級高通濾波器電路說明 14
2.3.2 類比數位轉換器 16
2.3.2.1 控制單元 17
2.3.2.2 數位類比轉換器&比較器單元 18
2.3.2.3 參考電壓單元(vref) 22
2.3.3 雙向電流刺激器 23
2.3.4 晶片照相圖 22
2.4 量測考量 24
2.5 模擬結果 26
2.5.1 儀表放大器 26
2.5.2 類比數位轉換器 26
2.5.3 雙向電流刺激器 26
2.6 晶片量測 29
2.6.1 實際量測 29
2.6.1.1 類比數位轉換器 29
2.6.1.2 雙向電流刺激器 30
2.6.1.3 儀表放大器 30
2.6.1.4 神經阻值之量測 31
2.6.2 操作規格 34
2.6.3 規格比較 35
2.6.4 討論 38
第三章 應用於系統晶片散熱用途之雙放大器
線圈驅動電路 39
3.1 簡介 39
3.2 原理說明 39
3.3 電路架構設計 40
3.3.1 改良之輸出及放大器 40
3.3.2 輸出及放大器改良之目的 42
3.3.3 空載迴路切換詳細說明 43
3.3.4 修改之BJT元件架構及其等效模型簡介 43
3.4 測式考量 45
3.5 模擬結果 46
3.6 晶片量測 49
3.6.1 實測結果 49
3.6.2 討論 52
第四章 結論與成果 53
參考文獻 55
參考文獻 References
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