[問題] 電子學stray capacitances小問題
這是在smith電子學第五版 charge-redistribution A/D converter裡的一段話 (p.934)
看了有點疑問..
the bottom plates are connected either to ground or to Vref;thus the charge
on the stray capacitances will not flow into the capacitor array.
請問接ground or Vref為何就能達到這種效果？
Also, because both the initial and final voltages on the top plate are zero,
the circuit is also insensitive to the stray capacitances between the top
plates and ground.
為什麼這樣子電路就會對stray capacitances是insensitive呢？
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 59.114.128.199
※ 編輯: Zoxge 來自: 59.114.128.199 (04/12 07:43)