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The asymptotic gain model (also known as t … The asymptotic gain model (also known as the Rosenstark method) is a representation of the gain of negative feedback amplifiers given by the asymptotic gain relation: where is the return ratio with the input source disabled (equal to the negative of the loop gain in the case of a single-loop system composed of unilateral blocks), G∞ is the asymptotic gain and G0 is the direct transmission term. This form for the gain can provide intuitive insight into the circuit and often is easier to derive than a direct attack on the gain. Figure 1 shows a block diagram that leads to the asymptotic gain expression. The asymptotic gain relation also can be expressed as a signal flow graph. See Figure 2. The asymptotic gain model is a special case of the extra element theorem. As follows directly from limiting cases of the gain expression, the asymptotic gain G∞ is simply the gain of the system when the return ratio approaches infinity: while the direct transmission term G0 is the gain of the system when the return ratio is zero: the system when the return ratio is zero:
, 漸近增益模型（asymptotic gain model），也稱為Rosenstark方法，是由以下漸近增益的關係來表示负反馈放大器的增益： 其中是輸入源無效時的返回比（在只有單一迴路，且由單輸入模組組成的系統時，等於負的环路增益），G∞是漸近增益，G0是直接傳遞項。此型式的增益可以提供對於電路一些直觀的直覺，而且比直接推導增益要容易計算。 圖1是漸近增益模型的方塊圖。漸近增益的關係也可以用信号流图表示，如圖二。漸近增益模型是的特例。
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| rdfs:comment |
漸近增益模型（asymptotic gain model），也稱為Rosenstark方法，是由以下漸近增益的關係來表示负反馈放大器的增益： 其中是輸入源無效時的返回比（在只有單一迴路，且由單輸入模組組成的系統時，等於負的环路增益），G∞是漸近增益，G0是直接傳遞項。此型式的增益可以提供對於電路一些直觀的直覺，而且比直接推導增益要容易計算。 圖1是漸近增益模型的方塊圖。漸近增益的關係也可以用信号流图表示，如圖二。漸近增益模型是的特例。
, The asymptotic gain model (also known as t … The asymptotic gain model (also known as the Rosenstark method) is a representation of the gain of negative feedback amplifiers given by the asymptotic gain relation: where is the return ratio with the input source disabled (equal to the negative of the loop gain in the case of a single-loop system composed of unilateral blocks), G∞ is the asymptotic gain and G0 is the direct transmission term. This form for the gain can provide intuitive insight into the circuit and often is easier to derive than a direct attack on the gain.o derive than a direct attack on the gain.
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| rdfs:label |
Asymptotic gain model
, 漸近增益模型
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