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題 名 | Peak Voltage Detector with Output Stage=具輸出級之電壓峰值檢知器 |
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作 者 | 蕭明椿; | 書刊名 | 修平學報 |
卷 期 | 9 2004.09[民93.09] |
頁 次 | 頁79-92 |
分類號 | 448.532 |
關鍵詞 | 電壓峰值檢知器; 差動放大器; 比較器; Peak voltage detector; Differential amplifier; Comparator; |
語 文 | 英文(English) |
中文摘要 | 本文提出一種新穎架構之電壓峰值檢知器,其係由一差動放大器、一充電電晶體、一電容器C以及一輸出級所組成,其中,該差動放大器係做為比較器使用,該充電電體係做為充電器使用,用以提供電容器C所需之充電電流,而該輸出級則用以調整該電容器C上之電壓信號V(C),以便精確地輸出該輸入信號之峰值電壓本文所提出之電壓峰值檢知器,不但能精確地檢測出輸入信號之峰值電壓,並且兼具電路結構簡單、佔用的晶片面積小以及有利於裝置之小型化等多重功效,同時亦設置有輸出級以便有效防止因外部電路之擷取動作而遭致破壞所保持之輸入峰值電壓。 |
英文摘要 | The paper introduces a newly-designed peak voltage detector, which consists of a differential amplifier, a charge transistor, a capacitor, and an output stage. In which, the differential amplifier serves as a comparator, the charge transistor is a charger for supplying the capacitor with the needed charge current, and the output stage shifts the voltage signal on the capacitor to provide a precise peak voltage of an input signal. The peak voltage detector in this paper can accurately measure the peak voltage of an input signal and also comes up with advantages like simple circuit design, minimal chip space, and suitable for use with smaller devices. In addition, the inclusion of an output stage can further prevent the held peak voltage disruption resulted from the accessing activities of the outer circuits. |
本系統中英文摘要資訊取自各篇刊載內容。