使用運算放大器及二極體來實現電流峰值偵測器

Realization of the Current Peak Detector using an OPA and a Diode

謝欣儒(Shin-Ru Hsieh)

指導教授 ： 侯俊禮

中原大學/工學院/電子工程研究所/碩士(2010年)

https://doi.org/10.6840/cycu201000412

摘要

本篇提出一個可偵測正相電流峰值的電路及一個可偵測反相電流峰值的電路。此兩種電路只需用一個運算放大器、一個二極體及少數被動元件所組成之電路。本電路所需之元件數目少功率消耗低並且可長時間維持電流之峰值。HSPICE模擬結果也證實其理論分析。

關鍵字

電流峰值偵測器 ； 運算放大器

並列摘要

This paper presents two prototype circuits that can detect the peak value of the current and the inverse-peak value of current. The circuits just consist of an operational amplifier, a diode and four passive elements. The circuits are using few elements, dissipating little power and lasting the value of the peak for a period of time. The simulation result using HSPICE is given to verify the theoretical analysis.

並列關鍵字

current peak detector ； operational amplifier.

參考文獻

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