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標題: 請問一題電子學 [打印本頁]

作者: tfam0233 時間: 2010-10-21 09:31 PM 標題: 請問一題電子學

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作者: avontube 時間: 2010-10-22 10:28 PM

(a) for no load, that is open circuit.  The voltage at point B is zero.
(b) for 5 mA to flow through,  1001*Vx / 5000 = 5 mA.  Vx is the voltage across the input terminal (+/-).  Solving the equation, Vx = 24.97 mV  The output is then equal to -24.97 mV.

Hope this is correct.  I learned the Op-Amp circuit 30 years ago.

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