作者Zoxge (翱翔天际)
看板Electronics
标题[问题] 电子学stray capacitances小问题
时间Thu Apr 12 07:43:21 2007
这是在smith电子学第五版 charge-redistribution A/D converter里的一段话 (p.934)
看了有点疑问..
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.
请问接ground or Vref为何就能达到这种效果？
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.
为什麽这样子电路就会对stray capacitances是insensitive呢？
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