π-shape model for one-terminal measurement单端测量π模型
1.As for the proposed method, using the π-shape model for one-terminal measurement and taking distributed parameter characteristic of transmission line into account, the interaction between impedance and capacitive reactance of transmission line can be determined by use of one-terminal measured data.文章提出一种综合抗干扰电压的线路参数测量新方法,该方法基于工频变向量法和并联补偿加压技术,采用单端测量π模型,计及线路分布参数特性,仅用单端测量数据就可得出线路阻抗和容抗间的相互影响。
3)Π modelΠ模型
4)double-Πmodel双Π模型
5)л-typed RLC model EEACC:π型RLC模型
6)hybrid-π model混合π模型
1.Prove unequivalent for the unidirectional circuit of hybrid-π model of BJT;密勒定理不能对晶体管混合π模型作全等效单向化变换
2.It is proved that Gummel-poon model of BJTs can be simplified to hybrid-π model of BJTs under the conditions of steady-state and linearity.EWB仿真验证了晶体管的GP模型在稳态和线性的计算条件下,可等效为混合π模型,仿真结果也验证了理论分析的正确性。
延伸阅读
π, π-conjugation分子式：CAS号：性质：单键和双键相互交替排列的共轭体系。最简单的为1,3-丁二烯，而苯分子则是一个具有高度对称结构的闭合共轭体系。除碳碳双键外，碳碳叁键、碳氧双键等，都可组成π,π-共轭。例如：CH2＝CH—C≡CH；CH2＝CH—CH＝O。由π,π-共轭引起的使分子内能降低、键长发生平均化等电子效应，称为π,π-共轭效应。
