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

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.