Next, the standard val-ues of circuit parameters and the maximum possible parametric range when the circuit has 2-scroll attractors are calculated according to the presented chaotic region diagram.

• 根据该混沌区域图，找到了系统产生双涡卷混沌吸引子且容差范围为最大时的元件参数标称值，同时计算出了元件参数标称值的容差范围。