本論文包含兩個主題：車載網路通訊系統FlexRay之錯誤偵測高速傳接器，以及溫度偵測保護電路。

第一個主題探討一FlexRay 2.1版錯誤偵測高速傳接器的電路整體架構，本論文延續先前之傳送器設計，由傳送端電路產生一對訊號，透過雙絞線傳送，再由另外一個匯流排驅動器的接收電路接收。接收器主要由三個比較器所組合成的架構，解出訊號並傳送給後端的匯流排驅動器控制電路做處理，用來分析出傳送器輸出的訊號所表達的狀態模式。本論文之貢獻為包含在傳送器中的錯誤偵測電路是用以偵測電流，以防止有過電流（over-current）的情況產生。相對地，在接收器的部分同樣也包含偵錯短路功能，藉由比較器及由電晶體串連疊接的參考電壓，採用電壓比較的方式以判斷所接收到的訊號是否有接地的情形，或是接到電源的情況，並符合FlexRay預計規格。

第二個主題提出一個具有感測溫度的溫度偵測保護電路。本設計提出一個在車用環境中不同的溫度偵測方式。在放電電路（Discharging circuit）的前端，以P型電晶體所構成的放電電路，並且在放電後，電壓趨於穩定時，由一比較器比較，進行角落環境（process corner）判斷的動作。接著啟動在該角落環境下的溫度偵測，以判斷目前溫度是落在哪個溫度區間。此方法也可以確保在穩定的角落環境下進行，也能夠分別解決角落環境和溫度的雙重影響而導致無法偵測溫度的問題。

This thesis is composed of two parts: a high-speed transceiver front-end design with fault detection for FlexRay-based automative communication systems, and a temperature detector.
In the first topic, a high-speed transceiver design with a fault detection circuit compliant with FlexRay standards V2.1 is proposed and realized on silicon. According to FlexRay physical layer standards, a LVDS-like transmitter is utilized to drive the twisted pair to generate a pair of differential signals. By contrast, a three-comparator-based receiver will recover the signals and then detect the mode of the bus. A failure detector is added at the transmitter to detect the operating current magnitude to avoid any over-current hazard. Meanwhile, a short-circuit detector is added at the receiver to detect short-circuit faults to vdd or gnd.
The second topic discloses a temperature detector circuit, particularly dedicated for the reliability of any in-car system by sensing the temperature and the process at the same time. A discharging circuit composed of four PMOS transistors discharges until the output voltage is stable. It is composed of several reference voltages and comparators to determine the range of temperature and process. Eventually, by identifying the process corner and the temperature range, the reliability and safty of the car electrics will be ensured.

致謝............................................................................................................................... v
摘要............................................................................................................................... v
Abstract ........................................................................................................................ vi
目錄.............................................................................................................................. vii
圖目錄............................................................................................................................ x
表目錄.......................................................................................................................... xii
第一章 概論 ................................................................................................................. 1
1.1 研究動機............................................................................................................. 1
1.2 相關技術與文獻探討......................................................................................... 5
1.2.1 LIN ................................................................................................................ 5
1.2.2 CAN .............................................................................................................. 5
1.2.3 MOST ........................................................................................................... 6
1.2.4溫度偵測....................................................................................................... 7
1.3 論文大綱............................................................................................................. 9
第二章 FlexRay之具錯誤偵測功能之高速傳接器 ................................................ 10
2.1傳接器架構........................................................................................................ 10
2.2電路架構與規格................................................................................................ 11
ix
2.3電路設計............................................................................................................ 13
2.3.1傳送端電路（Transmitter） ...................................................................... 13
2.3.2接收端電路（Receiver） .......................................................................... 16
2.3.3接收端偵測電路......................................................................................... 22
2.4電路模擬與預計規格........................................................................................ 24
2.4.1電路模擬結果............................................................................................. 24
2.4.2預計規格..................................................................................................... 27
2.5晶片量測規格與佈局........................................................................................ 28
2.6晶片實作與量測結果........................................................................................ 30
2.6.1量測結果討論............................................................................................. 33
第三章 車用溫度偵測保護電路 ............................................................................... 35
3.1 BMS之架構 ...................................................................................................... 35
3.2電路架構與設計................................................................................................ 36
3.3電路設計............................................................................................................ 37
3.3.1放電電路（Discharging circuit） .............................................................. 37
3.3.2製程環境判斷電路（Corner detector）.................................................... 38
3.3.3溫度偵測電路（Thermal detector） ......................................................... 40
3.4電路模擬與預計規格........................................................................................ 44
x
3.4.1電路佈局後模擬結果................................................................................. 44
3.4.2預計規格列表............................................................................................. 50
3.5晶片佈局............................................................................................................ 51
3.6結果與討論........................................................................................................ 52
第四章 研究結果與討論 ........................................................................................... 54
參考文獻...................................................................................................................... 55

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