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叠加原理是线性网络的一个重要原理,它普遍适用于一切本质上属于线性范围的网络。按照传统的定义,线性网络即由线性网络元件,独立电源组成的网络。叠加原理适用于传统的线性网络,是并无异议的。可是,对于其他网络又如何呢?在半导体放大器的教学与研究中至少遇到了下面两个问题:(1)认为低频电压放大器在小信号工作时就其端口的输入,输出特性而言是满足叠加原理的,而放大器中包含有非线性元件,因此,叠加原理也适用于此
The principle of superposition is an important principle of linear networks, which is universally applicable to all networks that are inherently linear in scope. According to the traditional definition of a linear network that is composed of linear network components, independent power network. The principle of superposition applies to the traditional linear network, there is no objection. However, what about other networks? There are at least two problems encountered in the teaching and research of semiconductor amplifiers: (1) It is considered that the low-frequency voltage amplifier satisfies the superposition of the input and output characteristics of the port in the small signal operation Principle, and the amplifier contains nonlinear components, so the principle of superposition also applies to this