Re: [問題] 電子學 CS amplifier
π-model
←╮ix
┌──Rsig──┐│ ┌────┬───┐
│ + │ │ │ │
│ VgsVx gm.Vgs ro │
│ _ │ │ │ │
│ └──┬──┴────┘ RL
│ │ │
│ Rs │
│ │ │
▽ ▽ ▽
Vx
Rgs= ═══
ix
應該是這樣吧?
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