Voice circuit of telephone
作者： Yasuo Shirai , Koji Nishio
DOI:
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摘要: A voice circuit of a telephone is provided with differential amplifier and an impedance setting circuit. An output to amplify signal transmitter supplied the inverting input terminal amplifier. noninverting line driver. positive feedback loop constituted by amplifier, driver, line, By controlling amount in this loop, AC controlled.
lens.org 参考文章(4)
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