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A physical memristor has an asymmetric tight hysteresis loop. In order to simulate the asymmetric tight hysteresis curve of the physical memristor more conveniently, a fractional-order diode bridge memristor model with a bias voltage source is proposed in this paper, which can continuously regulate the hysteresis loop. Firstly, based on fractional calculus theory, a fractional order model of a diode bridge memristor with a bias voltage source is established, and its electrical characteristics are analyzed. Secondly, by integrating it with the Jerk chaotic circuit, a non-homogeneous fractional order memristor chaotic circuit model with a bias voltage source is established, and the influence of bias voltage on its system dynamic behavior is studied. Once again, a fractional-order equivalent circuit model is built in PSpice and validated through circuit simulation. The experimental results are basically consistent with the numerical simulation results. Finally, the experiments on the circuit are completed in LabVIEW to validate the correctness and feasibility of the theoretical analysis. The results indicate that the fractional order memristor with bias voltage source can continuously obtain asymmetric tight hysteresis loop by adjusting the voltage of the bias voltage source. As the bias power supply voltage changes, the non-homogeneous fractional order memristor chaotic system exhibits that the period doubling bifurcation turns into chaos due to the symmetry breaking.
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Keywords:
- memristor /
- chaotic circuit /
- fractional calculus /
- circuit experiment
[1] Chua L O 1971 IEEE Trans. Circuit. Theory 18 507
Google Scholar
[2] Strukov D B, Snider G S, Stewart D R, Williams R S 2008 Nature 453 80
Google Scholar
[3] Wen S P, Wei H Q, Yan Z, Guo Z Y, Yang, Y, Huang T W, Chen Y R 2019 IEEE Trans. Netw. Sci. Eng. 7 1431
Google Scholar
[4] Liu S J, Wang Y Z, Fardad M, Varshney P K 2018 IEEE Circ. Syst. Mag. 18 29
Google Scholar
[5] Yao P, Wu H Q, Gao B, Tang J S, Zhang Q T, Zhang W Q, Yang J J, Qian H 2020 Nature 577 641
Google Scholar
[6] 包涵, 包伯成, 林毅, 王将, 武花干 2016 物理学报 65 180501
Google Scholar
Bao H, Bao B C, Lin Y, Wang J, Wu H G 2016 Acta Phys. Sin. 65 180501
Google Scholar
[7] 郑广超, 刘崇新, 王琰 2018 物理学报 67 050502
Google Scholar
Zheng G C, Liu C X, Wang Y 2018 Acta Phys. Sin. 67 050502
Google Scholar
[8] Li C B, Wang R, Ma X, Jiang Y C, Liu Z H 2021 Chin. Phys. B 30 201
Google Scholar
[9] 秦铭宏, 赖强, 吴永红 2022 物理学报 71 160502
Google Scholar
Qing M H, Lai Q, Wu Y H 2022 Acta Phys. Sin. 71 160502
Google Scholar
[10] Chen M, Ren X, Wu H G, Xu Q, Bao B C 2019 Front. Inform. Tech. El. 20 1706
Google Scholar
[11] Wu H G, Ye Y, Chen M, Xu Q, Bao B C 2019 IEEE Access 7 145022
Google Scholar
[12] Wang N, Zhang G S, Kuznetsov N V, Bao H 2021 Commun. Nonlinear Sci. Numer. Simul. 92 105494
Google Scholar
[13] Wu H G, Bao B C, Liu Z, Xu Q, Jiang P 2016 Nonlinear Dyn. 83 893
Google Scholar
[14] 俞亚娟, 王在华 2015 物理学报 64 238401
Google Scholar
Yu Y J, Wang Z H 2015 Acta Phys. Sin. 64 238401
Google Scholar
[15] Ramakrishnan B, Durdu A, Rajagopal K, Akgul A 2020 AEU-Int. J. Electron. Commun. 123 153319
Google Scholar
[16] Kengne J, Tabekoueng Z N, Tamba V K, Negou A N 2015 Chaos 25 103126
Google Scholar
[17] Hu W P, Wang Z, Zhao Y P, Deng Z C 2020 Appl. Math. Lett. 103 106207
Google Scholar
[18] Kengne L K, Kengne J, Telem N A K, Pone J R M 2021 J. Circuit. Syst. Comp. 30 2150077
Google Scholar
[19] Kengne J, Mogue R L T, Fozin T F, Telem A N K 2019 Chaos Solitons Fractals 121 63
Google Scholar
[20] Cao H, Seoane J M, Sanjuán M A F 2007 Chaos Solitons Fractals 34 197
Google Scholar
[21] Kengne L K, Pone J R M, Tagne H T K, Kengne J 2020 AEU-Int. J. Electron. Commun. 118 153146
Google Scholar
[22] Wu H, Zhou J, Chen M, Xu Q, Bao B C 2022 Chaos, Solitons Fractals 154 111624
Google Scholar
[23] Yang N N, Xu C, Wu C J, Jia R, Liu C X 2018 Nonlinear Dyn. 97 33
Google Scholar
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图 2 含偏置电压源的分数阶忆阻器等效电路及忆阻器符号
Figure 2. Equivalent circuit of fractional memristor with bias voltage source and symbol of memristor.
图 3 含偏置电压源的分数阶忆阻器磁滞回线 (a) q1 = 0.98, Em = 0 V, 频率改变; (b) f = 200 Hz, Em = 0.1 V, 分数阶次改变; (c) q1 = 0.98, f = 200 Hz, 偏置电压改变
Figure 3. Hysteresis loop of fractional memristor with bias voltage source: (a) q1 = 0.98, Em = 0 V, frequency change; (b) f = 200 Hz, Em = 0.1 V, fractional order change; (c) q1 = 0.98, f = 200 Hz, bias voltage change.
图 4 V-I曲线的不对称程度
Figure 4. Degree of asymmetry of the V-I curve.
图 5 非齐次分数阶忆阻混沌系统
Figure 5. Non homogeneous fractional order memristor chaotic system.
图 6 参数d变化的平衡点在x1-x4平面上的分布
Figure 6. Distribution of equilibrium points for parameter d changes on the x1-x4 plane.
图 7 整数阶系统分岔图, 其中红色(+)和绿色(–)分别为系统初值取(±0.45 V, 0 V, 0 V, 0 V)
Figure 7. Bifurcation diagram of integer order system, where red (+) and green (–) represent system initial values of (±0.45 V, 0 V, 0 V, 0 V).
图 8 不同偏置电压Em下, 整数阶系统由周期到混沌相图, 其中红色(+)和绿色(–)分别为系统初值取(±0.45 V, 0 V, 0 V, 0 V)(a) 0 V; (b) 0.2 V; (c) 0.3 V; (d) 0.32 V; (e) 0.35 V; (f) 0.6 V
Figure 8. Phase diagram of integer order systems from period to chaos at different bias voltage Em, where red (+) and green (–) represent initial values of (±0.45 V, 0 V, 0 V, 0 V) for the system: (a) 0 V; (b) 0.2 V; (c) 0.3 V; (d) 0.32 V; (e) 0.35 V; (f) 0.6 V.
图 9 整数阶系统各平面相图 (a) v1-v2; (b) v1-v3; (c) v1-v4; (d) v2-v3
Figure 9. Phase diagrams of various planes in integer order systems: (a) v1-v2; (b) v1-v3; (c) v1-v4; (d) v2-v3.
图 10 分数阶系统分岔图, 其中红色(+)和绿色(–)分别为系统初值取(±0.45 V, 0 V, 0 V, 0 V)
Figure 10. Bifurcation diagram of fractional order system, where red (+) and green (–) represent system initial values of (±0.45 V, 0 V, 0 V, 0 V).
图 11 不同偏置电压Em下, 分数阶系统由周期到混沌相图, 其中红色(+)和绿色(–)分别为系统初值取(±0.45 V, 0 V, 0 V, 0 V)(a) 0 V; (b) 0.2 V; (c) 0.3 V; (d) 0.32 V; (e) 0.4 V; (f) 0.6 V
Figure 11. Phase diagram of fractional order systems from Period to chaos at different bias voltage Em, where red (+) and green (–) represent initial values of (±0.45 V, 0 V, 0 V, 0 V) for the system: (a) 0 V; (b) 0.2 V; (c) 0.3 V; (d) 0.32 V; (e) 0.4 V; (f) 0.6 V.
图 12 分数阶系统各平面相图 (a) v1-v2; (b) v1-v3; (c) v1-v4; (d) v2-v3
Figure 12. Phase diagrams of fractional order systems in various planes: (a) v1-v2; (b) v1-v3; (c) v1-v4; (d) v2-v3.
图 13 系统随阶次变化分岔图 (a) 系统初值为(0.45 V, 0 V, 0 V, 0 V); (b) 系统初值为(–0.45 V, 0 V, 0 V, 0 V)
Figure 13. Bifurcation diagram of system with order variation: (a) Initial value of the system is (0.45 V, 0 V, 0 V, 0 V); (b) initial value of the system is (–0.45 V, 0 V, 0 V, 0 V).
图 14 含有偏置电压源的分数阶系统吸引盆
Figure 14. Fractional order system suction basin with bias voltage source.
图 15 整数阶系统电路仿真原理图
Figure 15. Schematic diagram of integer order system circuit simulation.
图 16 不同偏置电压Em下, 整数阶系统电路仿真由周期到混沌相图, 其中红色(+)和绿色(–)分别为系统初值取(±0.45 V, 0 V, 0 V, 0 V) (a) 0 V; (b) 0.2 V; (c) 0.3 V; (d) 0.32 V; (e) 0.35 V; (f) 0.6 V
Figure 16. Circuit simulation of integer order system from period to chaos phase diagram at different bias voltage Em, where red (+) and green (–) represent initial values of (±0.45 V, 0 V, 0 V, 0 V) for the system: (a) 0 V; (b) 0.2 V; (c) 0.3 V; (d) 0.32 V; (e) 0.35 V; (f) 0.6 V.
图 17 整数阶系统电路仿真各平面相图 (a) v1-v2; (b) v1-v3; (c) v1-v4; (d) v2-v3
Figure 17. Fractional order system circuit simulation phase diagrams of each plane: (a) v1-v2; (b) v1-v3; (c) v1-v4; (d) v2-v3.
图 18 分数阶电容等效电路
Figure 18. Fractional order capacitor equivalent circuit.
图 19 分数阶系统电路仿真原理图
Figure 19. Schematic diagram of fractional order system circuit simulation.
图 20 不同偏置电压Em下, 分数阶系统由周期到混沌电路仿真相图, 其中红色(+)和绿色(–)分别为系统初值取(±0.45 V, 0 V, 0 V, 0 V) (a) 0 V; (b) 0.2 V; (c) 0.3 V; (d) 0.32 V; (e) 0.4 V; (f) 0.6 V
Figure 20. Simulation phase diagram of fractional order system from period to chaos circuit at different bias voltage Em, where red (+) and green (–) represent initial values of (±0.45 V, 0 V, 0 V, 0 V) for the system: (a) 0 V; (b) 0.2 V; (c) 0.3 V; (d) 0.32 V; (e) 0.4 V; (f) 0.6 V.
图 21 分数阶系统电路仿真各平面相图 (a) v1-v2; (b) v1-v3; (c) v1-v4; (d) v2-v3
Figure 21. Fractional order system circuit simulation phase diagrams of each plane: (a) v1-v2; (b) v1-v3; (c) v1-v4; (d) v2-v3.
图 22 混沌系统实验原理图及实验平台
Figure 22. Schematic diagram and experimental platform of integer order system experiment.
图 23 不同偏置电压Em下, 整数阶实验由周期进入混沌相图, 其中粉色(+)与蓝色(–)分别代表系统初值为(±0.45 V, 0 V, 0 V, 0 V) (a) 0 V; (b) 0.2 V; (c) 0.3 V; (d) 0.32 V; (e) 0.35 V; (f) 0.6 V
Figure 23. Integer order experiment from period to chaotic phase diagram at different bias voltage Em, where pink (+) and blue (–) represent system initial values of (±0.45 V, 0 V, 0 V, 0 V), respectively: (a) 0 V; (b) 0.2 V; (c) 0.3 V; (d) 0.32 V; (e) 0.35 V; (f) 0.6 V.
图 24 整数阶实验各平面相图 (a) v1-v2; (b) v1-v3; (c) v1-v4; (d) v2-v3
Figure 24. Phase diagrams of various planes in integer order experiments: (a) v1-v2; (b) v1-v3; (c) v1-v4; (d) v2-v3.
图 25 不同偏置电压Em下, 分数阶实验由周期进入混沌相图, 其中粉色(+)与蓝色(–)分别代表系统初值为(±0.45 V, 0 V, 0 V, 0 V) (a) 0 V; (b) 0.2 V; (c) 0.3 V; (d) 0.32 V; (e) 0.35 V; (f) 0.6 V
Figure 25. Integer order experiment from period to chaotic phase diagram at different bias voltage Em, where pink (+) and blue (–) represent system initial values of (±0.45 V, 0 V, 0 V, 0 V), respectively: (a) 0 V; (b) 0.2 V; (c) 0.3 V; (d) 0.32 V; (e) 0.35 V; (f) 0.6 V.
图 26 分数阶实验各平面相图 (a) v1-v2; (b) v1-v3; (c) v1-v4; (d) v2-v3
Figure 26. Fractional order experiment phase diagrams of each plane: (a) v1-v2; (b) v1-v3; (c) v1-v4; (d) v2-v3.
表 1 系统平衡点及其稳定性
Table 1. System equilibrium point and its stability.
d值 平衡点 特征值λ1—λ4 稳定性 0, 0.1, 0.3 P0(0, 0, 0, 0) 0.3773, –0.6886 ±5.2293i, –0.0172 指数–1 USF 0, 0.1, 0.3 P–(–19.7558, 0, 0, 1.9755) 1.2573 ±5.8895i, –3.5516, –0.0143 指数–2 USF 0 P+(19.7558, 0, 0, 1.9755) 1.2573 ±5.8895i, –3.5516, –0.0143 指数–2 USF 0.1 P+(19.9495, 0, 0, 1.9949) 1.2689 ±5.8991i, –3.5751, –0.0143 指数–2 USF 0.3 P+(20.3363, 0, 0, 2.0336) 1.2918 ±5.9182i, –3.6215, –0.0143 指数–2 USF 
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表 2 分数阶电容$C_{\text{m}}^{{q_1}}$和$C_{2}^{{q_2}}$的等效电阻参数
Table 2. Equivalent resistance parameters of fractional capacitor $C_{\text{m}}^{{q_1}}$ and $C_{2}^{{q_2}}$.
Rin/Ω Ro1/Ω Ro2/(103 Ω) Ro3/(105 Ω) Ro4/(109 Ω) Ro5/(105 Ω) $C_{\text{m}}^{{q_1}} = 5.8 \times {10^3}{\text{ nF}}$ 0.2273 5.327 1.203 2.705 1.158 1.209 $C_{2}^{{q_2}} = 10{\text{ nF}}$ 114.8 1461 348.7 828.9 730.0 837.3
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表 3 分数阶电容$C_{\text{m}}^{{q_1}}$和$C_{2}^{{q_2}}$的等效电容参数
Table 3. Equivalent capacitance parameters of fractional capacitance $C_{\text{m}}^{{q_1}}$ and $C_{2}^{{q_2}}$.
Co1/(10–7 F) Co2/(10–7 F) Co3/(10–7 F) Co4/(10–8 F) Co1/(10–5 F) $C_{\text{m}}^{{q_1}} = 5.8 \times {10^3}{\text{ nF}}$ 446.2 496.3 554.3 647.8 6200 $C_{2}^{{q_2}} = 10{\text{ nF}}$ 1.672 1.760 1.860 1.057 9.214
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[1] Chua L O 1971 IEEE Trans. Circuit. Theory 18 507
Google Scholar
[2] Strukov D B, Snider G S, Stewart D R, Williams R S 2008 Nature 453 80
Google Scholar
[3] Wen S P, Wei H Q, Yan Z, Guo Z Y, Yang, Y, Huang T W, Chen Y R 2019 IEEE Trans. Netw. Sci. Eng. 7 1431
Google Scholar
[4] Liu S J, Wang Y Z, Fardad M, Varshney P K 2018 IEEE Circ. Syst. Mag. 18 29
Google Scholar
[5] Yao P, Wu H Q, Gao B, Tang J S, Zhang Q T, Zhang W Q, Yang J J, Qian H 2020 Nature 577 641
Google Scholar
[6] 包涵, 包伯成, 林毅, 王将, 武花干 2016 物理学报 65 180501
Google Scholar
Bao H, Bao B C, Lin Y, Wang J, Wu H G 2016 Acta Phys. Sin. 65 180501
Google Scholar
[7] 郑广超, 刘崇新, 王琰 2018 物理学报 67 050502
Google Scholar
Zheng G C, Liu C X, Wang Y 2018 Acta Phys. Sin. 67 050502
Google Scholar
[8] Li C B, Wang R, Ma X, Jiang Y C, Liu Z H 2021 Chin. Phys. B 30 201
Google Scholar
[9] 秦铭宏, 赖强, 吴永红 2022 物理学报 71 160502
Google Scholar
Qing M H, Lai Q, Wu Y H 2022 Acta Phys. Sin. 71 160502
Google Scholar
[10] Chen M, Ren X, Wu H G, Xu Q, Bao B C 2019 Front. Inform. Tech. El. 20 1706
Google Scholar
[11] Wu H G, Ye Y, Chen M, Xu Q, Bao B C 2019 IEEE Access 7 145022
Google Scholar
[12] Wang N, Zhang G S, Kuznetsov N V, Bao H 2021 Commun. Nonlinear Sci. Numer. Simul. 92 105494
Google Scholar
[13] Wu H G, Bao B C, Liu Z, Xu Q, Jiang P 2016 Nonlinear Dyn. 83 893
Google Scholar
[14] 俞亚娟, 王在华 2015 物理学报 64 238401
Google Scholar
Yu Y J, Wang Z H 2015 Acta Phys. Sin. 64 238401
Google Scholar
[15] Ramakrishnan B, Durdu A, Rajagopal K, Akgul A 2020 AEU-Int. J. Electron. Commun. 123 153319
Google Scholar
[16] Kengne J, Tabekoueng Z N, Tamba V K, Negou A N 2015 Chaos 25 103126
Google Scholar
[17] Hu W P, Wang Z, Zhao Y P, Deng Z C 2020 Appl. Math. Lett. 103 106207
Google Scholar
[18] Kengne L K, Kengne J, Telem N A K, Pone J R M 2021 J. Circuit. Syst. Comp. 30 2150077
Google Scholar
[19] Kengne J, Mogue R L T, Fozin T F, Telem A N K 2019 Chaos Solitons Fractals 121 63
Google Scholar
[20] Cao H, Seoane J M, Sanjuán M A F 2007 Chaos Solitons Fractals 34 197
Google Scholar
[21] Kengne L K, Pone J R M, Tagne H T K, Kengne J 2020 AEU-Int. J. Electron. Commun. 118 153146
Google Scholar
[22] Wu H, Zhou J, Chen M, Xu Q, Bao B C 2022 Chaos, Solitons Fractals 154 111624
Google Scholar
[23] Yang N N, Xu C, Wu C J, Jia R, Liu C X 2018 Nonlinear Dyn. 97 33
Google Scholar
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