• 2022-05-29
    ‍一正弦波振荡器的开环电压放大倍数为Au,反馈系数为F,振荡器起振的幅值条件是( )。‌
    A: [img=66x27]1803d4c81049370.jpg[/img]
    B: [img=67x27]1803d4c81b88899.jpg[/img]
    C: [img=66x27]1803d4c825aa47c.jpg[/img]
    D: [img=66x27]1803d4c82ffb3b2.jpg[/img]