蔡氏电路静态非线性子电路的直接设计方法  

The Direct Design Method of Chua’s Circuit Static Nonlinear Sub-circuit

作　　者：张新国[1] 崔红霞[1] 于瑞萍[1] 李娅[1] 张兴芹[1] 魏曼莎[1] 

机构地区：[1]山东外国语职业学院信息工程学院,山东省日照市276826

出　　处：《曲阜师范大学学报（自然科学版）》2010年第4期91-95,共5页Journal of Qufu Normal University(Natural Science)

摘　　要：首先总结蔡氏电路中静态非线性电路的两个并联限幅运算放大器构成分段的线性负电阻特性的电路结构,分析这种电路结构的不足之处是负电阻非线性的构成方法是两个不同折点线性叠加构成的间接方法.提出由一个负电阻电路产生分段非线性的非线性正电阻直接构成方法,指出这是一种钳位电路,设计出两种类具体电路,分别给出了电路仿真实验结果,分析了电路误差并指出这一误差并不影响电路性能的原因,也给出进一步修正误差的设计方法,分析了物理电路设计的问题.The circuit structure with the characterristic of segmented linear piecewise resistance is first summarized.Two parallel limiting operational amplifiers constitute the circuit.The shortcoming of this circuit structure is analyzed that the composition method of nonlinear negative resistance is linear superposition of two different turning points.Then a kind of piecewise nonlinear positive resistance direct method which generated by a negative resistance circuit is put forward.It is pointed that the circuit is a kind of clamping circuit.Two specific circuits are designed respectively and the circuit simulation results are given.In addition,the circuit error is analyzed,it is pointed out the error of the circuit does not affect circuit performance.Error correction is also given to further design.The problems of the design of physical circuit are also analyzed.

关 键 词：混沌 蔡氏电路 直接非线性设计 钳位电路 电路仿真 

分 类 号：TN710.4[电子电信—电路与系统]