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    • 5. 发明授权
    • Peak detector
    • 峰值检测器
    • US07738565B1
    • 2010-06-15
    • US11433175
    • 2006-05-11
    • Victor PogrebinskyVladimir Pogrebinsky
    • Victor PogrebinskyVladimir Pogrebinsky
    • H04B14/04
    • H03K5/1532G01R19/04
    • A peak detector provides repeatable and accurate measurements of the signal amplitude for variable frequencies of input signals. The peak detector includes a pulse edge generator circuit that generates a pulse edge signal in response to the signal peaks of an input signal and a sampler circuit that is triggered to sample the input signal by the pulse edge signal. The pulse edge generator circuit compares the input signal with a delayed version of the input signal to produce a differential signal and generates the pulse edge signal using the differential signal. An analog or digital sampler is triggered by the pulsed edge signal to measure the information, e.g., peak value, of the input signal. One or more delay circuits may be used to align the edges of the pulsed edge signal with the peaks of the input signal.
    • 峰值检测器提供对输入信号的可变频率的信号幅度的可重复和精确的测量。 峰值检测器包括脉冲边缘发生器电路,其响应于输入信号的信号峰值和被脉冲边缘信号触发以对输入信号进行采样的采样器电路产生脉冲边沿信号。 脉冲沿发生器电路将输入信号与输入信号的延迟版本进行比较,以产生差分信号,并使用差分信号产生脉冲沿信号。 模拟或数字采样器由脉冲边沿信号触发,以测量输入信号的信息,例如峰值。 可以使用一个或多个延迟电路来将脉冲边缘信号的边缘与输入信号的峰值对准。