[請益] 如何產生交換式(SC)大電阻?
各位板大好:
今天小弟想用HSPICE去模擬交換式(SC)大電阻,去取代實際大電阻,
其架構是由2顆MOS(有正反相時脈 f 去控制)和1顆電容(c)產生的SC大電阻,
算法 SC_R = 1 / cf, 之後後方有串一等效大電阻 R = 1meg 去求出電流(I),
如下圖所示:
----- SC_R ---- R -
| I--> |
___ |
V1 - |
-------------------
疑問: 今天用HSPICE模擬後,電流I卻都 0A,不知板上各位大大
有遇到過類似問題嗎,謝謝 !!
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