作者juicyworm (我爱玩爱玩爱玩)
看板Electronics
标题Re: [问题] 请问品质因数Q的定义?
时间Sat Aug 18 10:11:17 2007
Q factor has 3 common definitions
[1]
the ratio of center frequency and the two sided -3dB bandwidth
[2]
2*pi*(stored energy per cycle/dissipated energy per cycle)
[3]
ω0 dΦ
Q = ---- -----
2 dω
where ω0 is the resonance frequency
and Φ is the phase of the transfer function
[REF] B. Razavi, A Study of Phase Noise in CMOS Oscillators, IEEE JSSC 1996
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※ 编辑: juicyworm 来自: 220.134.36.78 (08/18 10:13)
1F：推 mwu:感谢这位先进的回答,我会仔细研究,谢谢 08/18 11:23