Cai's circuit inductor current oscilloscope display circuit

Abstract

The utility model discloses an oscilloscope display circuit for the inductor current in Chua's circuit, which is characterized in that: the voltage relating to the current IL of the inductor L in the Chua's circuit (1) is reflected on the arm of the inductor L and is transferred to a reverse integrator (3) via a voltage follower (2) of the conversion circuit; the output voltage variable is proportional to the inductor current, thus the current-to-voltage conversion is realized and displayed on an oscilloscope (4). The utility model can directly measure and display the current flow of the Chua's circuit by an oscilloscope; the numbers of the three Chua's circuit waveforms which can be measured and displayed by the oscilloscope is enlarged from two to three, and the numbers of the three Chua's circuit phase diagrams also is enlarged to three compared with the original number two; thereby the oscilloscope is suitable for the debugging of the Chua's circuit and is more suitable for the teaching of the college chaos experiment and the demonstration of the science popularization chaos experiment in Chua's circuit.

Description

technical field [0001] The invention belongs to nonlinear circuit, commonly called chaotic circuit, and relates to an oscilloscope display circuit for inductor current of Chua's circuit. Background technique [0002] Chua's circuit is a chaotic circuit, which is a third-order autonomous circuit composed of linear resistance, capacitance, inductance and nonlinear "Chua's diode", which meets the conditions for generating chaos. As shown in Figure 1. There are 3 changing physical quantities in Chua's circuit: voltage V C1 , voltage V C2 with current I L , voltage V C1 with voltage V C2 can be observed using an oscilloscope display, while the current I L Observations cannot be displayed using an oscilloscope, so the oscilloscope can only display two of the three waveforms in Chua's circuit. For the phase diagram, the three waveforms in Chua’s circuit can be combined into three phase diagrams in two groups, that is, V C1 -V C2 phase diagram, V C1 -I L phase diagram, I ...

AI Technical Summary

Problems solved by technology

There are 3 changing physical quantities in Chua's circuit: voltage V C1 , voltage V C2 with current I L , voltage V C1 with voltage V C2 can be observed using an oscilloscope display, while the current I L cannot use an oscilloscope to display observations, so that the oscilloscope can only display two of the three waveforms in Chua's circuit

For the phase diagram, the three waveforms in Chua’s circuit can be combined into three phase diagrams in two groups, that is, V C1 -V C2 phase diagram, V C1 -I L phase diagram, I L -V C2 phase diagram, the oscilloscope can only display V C1 -V C2 phase diagram, and cannot display V C1 -I L with I L -V C2 Phase diagram, this is the defect of Chua's circuit oscilloscope display observation method

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