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    • 74. 发明申请
    • IMPEDANCE-MAPPING AMPLIFIER CIRCUIT WITH EXCLUSIVELY REACTIVE NEGATIVE FEEDBACK
    • 具有独特反应性负反馈的阻抗映射放大器电路
    • US20090179705A1
    • 2009-07-16
    • US12331512
    • 2008-12-10
    • Ralph OppeltMarkus Vester
    • Ralph OppeltMarkus Vester
    • H03F1/00
    • H03F1/34H03F1/26H03F1/42H03F1/56H03F3/195H03F2200/147H03F2200/36H03F2200/372
    • An amplifier circuit has a transistor element that has an input terminal, an output terminal) and a third terminal. An input signal to be amplified is supplied to the input terminal. The amplified input signal is emitted as an output signal at the output terminal. The input terminal is connected with the output terminal via a first reactance. The third terminal is connected via a second reactance with a zero potential. One of the reactances is fashioned as an inductor and the other of the reactances is fashioned as a capacitor. An inductance value of the inductor and a capacitance value of the capacitor are dimensioned such that the quotient of the inductance value of the inductor and the capacitance value of the capacitor is equal to the product of a desired input impedance that is effective at the input terminal and an output impedance associated with the output impedance. Based on this dimensioning, the output impedance associated with the output terminal is mapped to the input terminal at the same level or scaled.
    • 放大器电路具有晶体管元件,其具有输入端子,输出端子)和第三端子。 要放大的输入信号被提供给输入端。 放大的输入信号作为输出端子处的输出信号发出。 输入端通过第一电抗与输出端连接。 第三端子经由具有零电位的第二电抗连接。 其中一个电抗被形成为一个电感,另一个是电抗器。 电感器的电感值和电容器的电容值被设定为使得电感器的电感值和电容器的电容值的商数等于在输入端子处有效的期望的输入阻抗的乘积 以及与输出阻抗相关联的输出阻抗。 基于此尺寸,与输出端子相关联的输出阻抗被映射到相同电平或缩放的输入端子。