该类电路中仅含有一个二端非线性电阻，该电阻的实现成为研究电路中的混沌现象极为重要的一个方面。

There is only one nonlinear element in these circuits and it is very important to realize this nonlinear resistor that chaotic of these circuits can be illustrated.

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该原理通过消去变压器回路方程中直接体现主磁通的非线性项，构造了仅含漏电感和绕组电阻的二端网络。

On basis of transformer loop equation, a novel principle of transformer protection using equivalent instantaneous leakage inductance is presented.

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