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Low‐noise voltage‐sensitive preamplifier with output stabilization by pole‐zero cancellation in the feedback circuit

机译:低噪声电压敏感型前置放大器,通过反馈电路中的零极点消除实现输出稳定

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Low‐noise, voltage‐sensitive preamplifiers were designed with pole‐zero cancellation in the feedback circuit to stabilize the output baseline against variations in the mean rate and amplitude of random signals. Compared to conventional feedback and subsequent pole‐zero cancellation, this method of baseline stabilization increased the fraction of signals transmitted without distortion by preamplifier saturation from 50 to ≳99% for steplike input signals of 240 mV amplitude occurring randomly at a mean rate of 104 signals/sec.
机译:低噪声,电压敏感型前置放大器在反馈电路中设计为零极点消除,以稳定输出基线,防止随机信号的平均速率和幅度发生变化。与传统的反馈和随后的零极点消除相比,这种基线稳定方法将240 mV幅度的阶梯状输入信号以104个信号的平均速率随机发生时,前置放大器饱和所传输的无失真信号的比例从50%提高到≳99% /秒。

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