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本文提出了一类电压相加型对数放大器的综合设计方法。这类对数放大器是由具有线性放大一限幅特性的各个单级构成的。在相同的对数精度下,通过本文的设计,可用最少的级数去覆盖规定的输入动态范围;或者说,在对数精度和级数相同时,通过本文的设计可以覆盖最大的输入动态范围。在这种意义下,本文的设计是最佳的。为了便于工程设计,本文已经计算出振幅特性在一定精度的意义下为自然对数和常用对数曲线时的某些数字结果。并且给出了完整的数字计算例子。
This paper presents a comprehensive design method for a voltage-added logarithmic amplifier. This type of logarithmic amplifier consists of a single stage with linear amplification and clipping characteristics. With the same logarithmic precision, the design of this paper can cover the specified input dynamic range with a minimum number of stages. In other words, with the same logarithmic accuracy and series, the maximum input dynamic range . In this sense, the design of this article is the best. In order to facilitate the engineering design, we have calculated some numerical results when the amplitude characteristic is a natural logarithm and a common logarithmic curve under certain accuracy. And gives a complete example of numerical calculations.