“密勒”定理的内容是;在如图所示的网络中,节点1和2间的阻抗Z通过电流Ⅰ,可以表示成为节点1和地间阻抗Z和节点2与地间阻抗z_2,而z_1,z_2通过的电流仍为Ⅰ,节点1、2电位不变,这个定理,在电路分析中很有用。但是,它要求网络是电压控制电压源,而对电流控制电压源、电流控制电流源等,则无能为力,笔者最近浏览国外“电气工程师杂志”,可以将密勒定理扩展,同时可用来分析负反馈放 In the network shown in the figure, the impedance Z between nodes 1 and 2 can be expressed as node 1 and ground impedance Z and node 2 and ground impedance z_2 by current I z_1, z_2 through the current is still Ⅰ, the potential of the node 1, 2 unchanged, this theorem, useful in circuit analysis. However, it requires the network voltage control voltage source, and the current control voltage source, current control current source, etc., power leveling, the author recently visited the foreign “Journal of Electrical Engineers”, Miller’s theorem can be expanded, and can be used to analyze negative feedback put