期刊
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
卷 70, 期 6, 页码 2276-2280出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCSII.2022.3233818
关键词
Boosting; Oscillators; Resistors; Resistance; Information science; Voltage control; Mathematical models; Chaotic oscillator; amplitude control; offset boosting; free control
Free control of a chaotic signal allows for the control of its amplitude, frequency, and offset, which is valuable for the application of chaotic circuits. This study presents the design and implementation of a chaotic oscillator with easy free control, involving five quadratic terms. By utilizing the current output characteristic of multiplier AD633 and op-amp AD844, a compact chaotic circuit with three multipliers and one op-amp was constructed. Experimental results demonstrate its flexibility for free control.
Free control of a chaotic signal means that its various aspects such as amplitude, frequency and offset can be freely controlled, which is of great value for the application of chaotic circuits. However, such a chaotic circuit typically contains many quadratic terms requiring multiplier-oriented operations, which posts a great challenge to the design of chaotic oscillators. In this brief, a chaotic oscillator with easy free control containing five quadratic terms was designed and implemented. By making full use of the current output characteristic of multiplier AD633 and op-amp AD844, a compact chaotic circuit with three multipliers and only one op-amp was constructed. Experimental result shows its flexibility for free control.
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