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可用於超再生接收器之三角積分脈寬數位器/A delta-sigma pulse width digitizer for super-regenerative receiver
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刊登日期:2014/05/21 |
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‧ 專利名稱 |
脈寬訊號數位化方法及應用其之脈寬數位器 |
‧ 專利證書號 |
I387216 8059708
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‧ 專利權人 |
國立臺灣大學 |
‧ 專利國家
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中華民國 (2009/12/08) 美國 (2009/12/08)
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‧ 發明人/PI |
林宗賢,劉耀鴻,
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‧ 單位 |
電子工程學研究所
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‧ 簡歷/Experience |
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技術摘要 / Our Technology: |
一種脈波寬度(Pulse Width,PW)數位化電路,用以提供PW訊號之PW資訊。PW數位電路包括電流泵(Current Pump)、電容、數位器(Quantizer)、迴授控制器、及數位濾波器。電流泵回應於PW訊號提供電流訊號。電容回應於電流訊號產生電壓訊號。數位器回應於電壓訊號提供數位訊號。迴授控制器回應於數位訊號提供迴授PW訊號,其中迴授PW訊號被迴授至電流泵,以控制電流訊號收斂至特定數值,並據以控制數位訊號切換於第一及第二數位碼(Code)之間。數位濾波器用以計算數位訊號對應至第一及數位訊號對應至第二數位碼之次數,並據以得到PW資訊。
A pulse width (PW) digitizer comprises a current pump, a capacitor, a quantizer, a feedback controller, and a digital filter. The current pump provides a current signal in response to a PW signal. The capacitor obtains a voltage signal in response to the current signal. The quantizer obtains a digital signal in response to the voltage signal. The feedback controller determines a feedback PW signal in response to the digital signal. The feedback PW signal is fed back to the current pump for controlling the current signal converging to a specific value and controlling the digital signal switching between a first code and a second code. The digital filter counts times that the digital signal indicating the first code/the second code and accordingly obtains the PW of the PW signal.
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專利簡述 / Intellectual Properties: |
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聯繫方式 / Contact: |
臺大產學合作總中心 / Center of Industry-Academia Collaboration, NTU |
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Email:ordiac@ntu.edu.tw |
電話/Tel:02-3366-9945 |
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