◆虚短与虚断 Virtual short circuit and Virtual open circuit *IC0p-amp工作在线性区 。1wp-W一Ao=o1pyw小心有限值 (yp-y=0+虚短yp=yN ip-=0 *ICop-ap工作在线性区 O =∞→流入或流出同相 输入端和反相输入端的 0 电流为0→虚断p=i=0 动画演示 Virtual short circuit-not physically connected Virtual open circuit -not physically open◆虚短与虚断 Virtual short circuit and Virtual open circuit *IC op-amp工作在线性区 vo =AVO (vP -vN ) AVO = vo / (vP - vN )=∞ (vP - vN )=0 虚短 vP =vN vo有限值 *IC op-amp工作在线性区 ri =∞ 流入或流出同相 输入端和反相输入端的 电流为0 虚断 iP =iN =0 *Virtual short circuit - not physically connected Virtual open circuit - not physically open iP =0 vP vN iN =0 v + O 动画演示