the School of Electronics and Information Hangzhou Dianzi University Hangzhou 310018 China;
the School of Electronics and Information Hangzhou Dianzi University Hangzhou 310018 China;
the School of Electronics and Information Hangzhou Dianzi University Hangzhou 310018 China;
the School of Electrical and Power Engineering China University of Minning and Technology Xuzhou 221116 China;
the School of Electrical Electronic and Computer Engineering The University of Western Australia Perth WA 6009 Australia;
Chaos; exponent; multisim; nonlinear circuits; oscillators; simulation;