Mechatronics and Energy TransformAtion             Laboratory
Mechatronics and Energy TransformAtion 	
            Laboratory

Featured publications

Mechatronic design, modeling, and analysis

J88 Xin Li, Xinyuan Chuai, Guobiao Hu, Daxing Zhang, Mingjing Cai, Congsi Wang, Yaowen Yang*, Wei-Hsin Liao*, and Junrui Liang*, "Energy and dynamics analysis of a single plucking energy harvester for transient-motion-powered IoT applications," Energy Conversion and Management, vol. 310, art. no. 118465, 2024.
J83 Bao Zhao, Jiacong Qiu, and Junrui Liang*, “Circuit solutions toward broadband piezoelectric energy harvesting: an impedance analysis,” IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 71, no. 2, pp. 962-973, 2024.
J81 Shiyi Liu and Junrui Liang*, “A four-in-one compact design of monostable quasi-static-toggling mechanical energy harvester,” IEEE/ASME Transactions on Mechatronics, doi: 10.1109/TMECH.2023.3323149.
J74 Bao Zhao#, Jiahua Wang#, Guobiao Hu, Andrea Colombi, Wei-Hsin Liao* and Junrui Liang*, “Time-sharing orbit jump and energy harvesting in nonlinear piezoelectric energy harvesters using a synchronous switch circuit,” Mechanical Systems and Signal Processing, vol. 200, art. no. 110601, 2023.
J62 Bao Zhao, Shiyi Liu, Wei-Hsin Liao*, and Junrui Liang*, “On the positive and negative damping effect of piezoelectric structure using switched-mode bidirectional energy conversion circuit,” Smart Materials and Structures, vol. 32, no. 1, p. 01LT01, 2023.
J61 Shiyi Liu, Xin Li, Li Teng, Guobiao Hu, and Junrui Liang*, “Energy and dynamic analysis of quasi-static toggling mechanical energy harvester,” Nano Energy, vol. 104, art. no. 107887, 2022.
J41 Yongji Gao, Guobiao Hu*, Bao Zhao, Kunyong Lv, and Junrui Liang*, “Synchronized switch piezoelectric energy harvesting using rotating magnetic ball and reed switches,” Smart Materials and Structures, vol. 30, no. 10, p. 105023, 2021.
J38 Yiming Gao, Junrui Liang*, and Yabin Liao, “Multiple harmonics extended impedance model of piezoelectric energy harvesting system,” IEEE/ASME Transactions on Mechatronics, vol. 27, no. 2, pp. 1185-11959, 2022.
J28 Guobiao Hu, Junrui Liang*, Chunbo Lan, and Lihua Tang*, “A twist piezoelectric beam for multi-directional energy harvesting,” Smart Materials and Structures, vol. 29, no. 11, art. no. 11LT01, 2020.
J25 Bao Zhao, Jiahua Wang, Junrui Liang*, and Wei-Hsin Liao, “A dual-effect solution for broadband piezoelectric energy harvesting,” Applied Physics Letters, vol. 116, no. 6, p. 063901, 2020.
J22 Chen Chen, Bao Zhao, and Junrui Liang*, “Revisit of synchronized electric charge extraction (SECE) in piezoelectric energy harvesting by using impedance modeling,” Smart Materials and Structures, vol. 28, no. 10, art. no. 105053, 2019.
J12 Haili Liu, Junrui Liang*, and Cong Ge, “A mechatronic power boosting design for piezoelectric generators,” Applied Physics Letters, vol. 107, no. 14, art. no. 141902, 2015.
J11 Junrui Liang*, Henry Shu-Hung Chung, and Wei-Hsin Liao, “Dielectric loss against piezoelectric power harvesting,” Smart Materials and Structures, vol. 23, no. 9, art. no. 092001, 2014.
J10 Junrui Liang and Wei-Hsin Liao*, “Impedance modeling and analysis for piezoelectric energy harvesting systems,” IEEE/ASME Transactions on Mechatronics, vol. 17, no. 6, pp. 1145-1157, 2012.
J6 Junrui Liang and Wei-Hsin Liao*, “On the influence of transducer internal loss in piezoelectric energy harvesting with SSHI interface,” Journal of Intelligent Material Systems and Structures, vol. 22, no. 5, pp. 503–512, 2011.
J4 Junrui Liang and Wei-Hsin Liao*, “Energy flow in piezoelectric energy harvesting systems,” Smart Materials and Structures, vol. 20, no. 1, art. no. 015005 (11 pages), 2011.
J3 Junrui Liang and Wei-Hsin Liao*, “Piezoelectric energy harvesting and dissipation on structural damping,” Journal of Intelligent Material Systems and Structures, vol. 20, no. 5, pp. 515–527, 2009.
C18 Junrui Liang*, Cong Ge, and Yi-Chung Shu, “Impedance modeling of electromagnetic energy harvesting system using full-wave bridge rectifier,” Proc. SPIE 10164, Active and Passive Smart Structures and Integrated Systems 2017, 101642N, Portland, USA, Mar. 2017. (SPIE SS/NDE 2017)

Power circuit design and analysis

J87 Linglong Gao, Li Teng, Haoyu Wang, Yu Liu, Minfan Fu, and Junrui Liang*, "A self-sensing synchronous switch circuit for bidirectional piezoelectric energy conversion," IEEE Transactions on Industrial Electronics, doi: 10.1109/TIE.2023.3342313.
J72 Li Teng, Haoyu Wang, Yu Liu, Minfan Fu, and Junrui Liang*, “A three-transistor energy management circuit for energy-harvesting-powered IoT devices,” IEEE Internet of Things Journal, vol. 11, no. 1, pp. 1301-1310, 2024.
J69 Zhiwu Xie, Li Teng, Haoyu Wang, Yu Liu, Minfan Fu, and Junrui Liang*, “A self-powered synchronous switch energy extraction circuit for electromagnetic energy harvesting enhancement,” IEEE Transactions on Power Electronics, vol. 38, no. 8, pp. 9972-9982, 2023.
J65 Zhiwu Xie#, Li Teng#, Yu Yin, and Junrui Liang*, “Synchronous switch energy extraction circuit for motor regenerative braking enhancement,” IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 70, no. 5, pp 1779-1783, 2023.
J63 Yiming Gao, Zijie Chen, Haoyu Wang, Yu Liu, Minfan Fu, and Junrui Liang*, “A load-independent fission-type inductive power transfer system for 3D reconfigurable IoT array,” IEEE Access, vol. 11, pp. 8878-8888, 2023.
J60 Yiming Gao, Minfan Fu, Haoyu Wang, and Junrui Liang*, “A 2-D inductive power transfer network for powering massive neighboring IoT devices,” IEEE Access, vol. 10, pp. 113560-113569, 2022.
J55 Linglong Gao, Li Teng, Minfan Fu, Haoyu Wang, and Junrui Liang*, “A switched-mode self-sensing solution for piezoelectric synchronous electric charge extraction,” IEEE Transactions on Industrial Electronics, vol. 70, no. 7, pp. 7457-7466, 2023.
J50 Yichao Liu, Yiming Gao, and Junrui Liang*, “Simulation of switched-mode power conversion circuits with extended impedance method,” IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 69, No. 9, pp. 3851-3860, 2022.
J47 Li Teng, Shiying Wang, and Junrui Liang*, “A multistep charge extractions and voltage bias-flip (MCEBF) interface circuit for piezoelectric energy harvesting enhancement,” IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 10, no. 5, pp. 6293-6303, 2022.
J39 Bao Zhao, Jiahua Wang, Junrui Liang*, and Wei-Hsin Liao*, “A bidirectional energy conversion circuit towards multi-functional piezoelectric energy harvesting and vibration excitation purposes,” IEEE Transactions on Power Electronics, vol. 36, no. 11, pp. 12889-12897, 2021.
J31 Bao Zhao, Kang Zhao, Xinchen Wang, Junrui Liang*, and Zhiyuan Chen, “Series synchronized triple bias-flip circuit: maximizing the usage of single storage capacitor for piezoelectric energy harvesting enhancement,” IEEE Transactions on Power Electronics, vol. 36, no. 6, pp. 6787-6796, 2021.
J17 Junrui Liang*, Yuheng Zhao, and Kang Zhao, “Synchronized triple bias-flip interface circuit for piezoelectric energy harvesting enhancement,” IEEE Transactions on Power Electronics, vol. 34, no. 1, pp. 275-286, 2019.
J13 Junrui Liang*, “Synchronized bias-flip interface circuits for piezoelectric energy harvesting enhancement: a general model and prospects,” Journal of Intelligent Material Systems and Structures, vol. 28, no. 3, pp. 339–356, 2017.
J9 Junrui Liang and Wei-Hsin Liao*, “Improved design and analysis of self-powered synchronized switch interface circuit for piezoelectric energy harvesting systems,” IEEE Transactions on Industrial Electronics, vol. 59, no. 4, pp. 1950–1960, 2012.
J8 Junrui Liang* and Wei-Hsin Liao, “Steady-state simulation and optimization of Class-E power amplifiers with extended impedance method,” IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 58, no. 6, pp. 1433–1445, 2011.
C47 Linglong Gao, Li Teng, and Junrui Liang*, “A switched-mode piezoelectric interface circuit for dynamics sensing, energy harvesting, and vibration excitation multi-functional purpose,” SPIE Smart Structures and Nondestructive Evaluation, 7-10 March 2021. (SPIE SS/NDE 2021)
C24 Kang Zhao, Junrui Liang*, and Chen Chen, “Parallel synchronized septuple bias-flip circuit for piezoelectric energy harvesting enhancement,” The 43rd Annual Conference of the IEEE Industrial Electronics Society, Beijing, China, Oct. 29 - Nov. 1, 2017. (IECON 2017)
C22 Junrui Liang* and Shuai Zhang, “An efficient steady-state simulation of class-e resonant inverter considering MOSFET parasitic components by using extended impedance method,” International Future Energy Electronics Conference 2017 – ECCE Asia, Kaohsiung, Taiwan, Jun. 2017. (ECCE Asia 2017)
C16 Junrui Liang*, “Design of class-E power amplifier with nonlinear components by using extended impedance method,” Proceedings of the 2016 IEEE International Symposium on Circuits and Systems, Montreal, Canada, May 2016. (ISCAS 2016)

Internet of Things (IoT) system design

J78 Zijie Chen, Li Teng, Lan Xu, Jingyi Yu*, and Junrui Liang*, “MP-HAR: a novel motion-powered real-time human activity recognition system,” IEEE Internet of Things Journal, vol. 11, no. 5, pp. 7652-7663, 2024.
J76 Zijie Chen, Yiming Gao, and Junrui Liang*, “LOPdM: a low-power on-device predictive maintenance system based on self-powered sensing and TinyML,” IEEE Transactions on Instrumentation and Measurement, vol. 72, art. no. 2525213, 2023.
J72 Li Teng, Haoyu Wang, Yu Liu, Minfan Fu, and Junrui Liang*, “A three-transistor energy management circuit for energy-harvesting-powered IoT devices,” IEEE Internet of Things Journal, vol. 11, no. 1, pp. 1301-1310, 2024.
J61 Shiyi Liu, Xin Li, Li Teng, Guobiao Hu, and Junrui Liang*, “Energy and dynamic analysis of quasi-static toggling mechanical energy harvester,” Nano Energy, vol. 104, art. no. 107887, 2022.
J40 Xin Li, Hong Tang, Guobiao Hu, Bao Zhao, and Junrui Liang*, “ViPSN-pluck: a transient-motion-powered motion detector,” IEEE Internet of Things Journal, vol. 9, no. 5, pp. 3372-3382, 2022.
J29 Xin Li, Li Teng, Hong Tang, Jingying Chen, Haoyu Wang, Yu Liu, Minfan Fu, and Junrui Liang*, “ViPSN: a vibration-powered IoT platform,” IEEE Internet of Things Journal, vol. 8, no. 3, pp. 1728-1739, 2021.
C65 Yue Zhu, Xin Li*, and Junrui Liang*, “Motion-powered Gameboy,” In Proceedings of the 20th ACM Conference on Embedded Networked Sensor Systems. Association for Computing Machinery, 2022. (SenSys' 22)
C43 Xin Li, Hong Tang, Yiyao Zhu, Haoyu Wang, and Junrui Liang*, “Power solution of a vibration-powered sensing node,” Proceedings of the 9th International Power Electronics and Motion Control Conference, Nanjing, China, May 31-June 3, 2020. (IPEMC - ECCE Asia 2020)

Interdisciplinary collaborations

J71 Jinling Zhu#, Chenchen Dai#, Hailiang Yang#, Yicheng Shan, Jing Ren, Yifan Liu, Jian Li, Wenshuai Chen*, Junrui Liang*, Shengjie Ling*, “IntelliSense bio-ionotronics battery for early warning of geological seepage,” ACS Sensors, vol. 8, pp. 2731−2739, 2023.
J70 Jinling Zhu#, Hailiang Yang#, Leitao Cao#, Chenchen Dai, Jing Ren*, Junrui Liang*, Shengjie Ling*, “Functionalization of structural materials through electro-blown spinning of ultrathin and transparent silk fibroin ionotronic nanofiber skin,” Nano Today, vol. 50, art. no. 101873, 2023.
J52 Qiang Liu#, Xin Li#, Hao Zhang#, Jing Ren*, Shuo Yang, Leitao Cao, Junrui Liang*, and Shengjie Ling*, “IntelliSense silk fibroin ionotronic batteries for wildfire detection and alarm,” Nano Energy, vol. 101, art. no. 107630, Oct. 2022.
J42 Guobiao Hu, Chaoyang Zhao, Yaowen Yang*, Xin Li, and Junrui Liang*, “Triboelectric energy harvesting using an origami-inspired structure,” Applied Energy, vol. 306, p. 118037, Jan. 2022.
J16 Tao Huang, Siwei Yang, Peng He*, Jing Sun, Shuai Zhang, Dongdong Li, Yan Meng, Jiushun Zhou, Huixia Tang, Junrui Liang*, Guqiao Ding*, and Xiaoming Xie, “Phase separation induced PVDF/graphene coating on fabrics towards flexible piezoelectric sensors,” ACS Applied Materials & Interfaces, vol. 10, no. 36, pp. 30732–30740, 2018.

Review articles

J56 Zijie Chen, Fei Gao*, and Junrui Liang*, “Kinetic energy harvesting based sensing and IoT systems: a review,” Frontiers in Electronics (section Wearable Electronics), vol. 3, p. 1017511, 2022.
J46 Xin Li, Guobiao Hu, Zhenkun Guo, Junlei Wang, Yaowen Yang*, and Junrui Liang*, “Frequency up-conversion for vibration energy harvesting: a review,” Symmetry, vol. 14, no. 3, p. 631, Mar. 2022.
J35 Junrui Liang*, Xin Li, and Hailiang Yang, “Kinetic energy harvesting toward battery-free IoT: fundamentals, co-design necessity, and prospects (invited paper),” ZTE Communications, vol. 19, no. 1, pp. 48–60, Mar. 2021.
J34 Guobiao Hu, Lihua Tang*, Junrui Liang*, Chunbo Lan, and Raj Das, “Acoustic-elastic metamaterials and phononic crystals for energy harvesting: a review,” Smart Materials and Structures, vol 30, no. 8, art. no. 085025, 2021.

Full publication list

Journal papers

J89 Xinguo Zhang, Kang Yue, Haoyu Wang, Junrui Liang, and Yu Liu*, "Injection based online capacitance monitoring with optimal selection of injection frequency in buck converters," IEEE Journal of Emerging and Selected Topics in Power Electronics, in press.
J88 Xin Li, Xinyuan Chuai, Guobiao Hu, Daxing Zhang, Mingjing Cai, Congsi Wang, Yaowen Yang*, Wei-Hsin Liao*, and Junrui Liang*, "Energy and dynamics analysis of a single plucking energy harvester for transient-motion-powered IoT applications," Energy Conversion and Management, vol. 310, art. no. 118465, 2024.
J87 Linglong Gao, Li Teng, Haoyu Wang, Yu Liu, Minfan Fu, and Junrui Liang*, "A self-sensing synchronous switch circuit for bidirectional piezoelectric energy conversion," IEEE Transactions on Industrial Electronics, doi: 10.1109/TIE.2023.3342313.
J86 Yingjie Zhuge, Junrui Liang, Minfan Fu, Teng Long, and Haoyu Wang*, "Comprehensive overview of power electronics intensive solutions for high-voltage pulse generators," IEEE Open Journal of Power Electronics, vol. 12, pp. 21-40, 2023.
J85 Zheng Li, Jing Wang, Man Kay Law, Sijun Du, Junrui Liang, Xu Cheng, Jun Han, Xiaoyang Zeng, and Zhiyuan Chen*, "Piezoelectric energy harvesting interface using self-bias-flip rectifier and switched-PEH DC-DC for MPPT," IEEE Journal of Solid-State Circuits, doi: 10.1109/JSSC.2023.3341865.
J84 Yifan Jiang, Junrui Liang, Haoyu Wang, Yu Liu, and Minfan Fu*, “Load-impedance insensitive design of high-efficiency class EF inverters,” IEEE Transactions on Power Electronics, vol. 39, no. 2, pp. 1958-1962, 2024.
J83 Bao Zhao, Jiacong Qiu, and Junrui Liang*, “Circuit solutions toward broadband piezoelectric energy harvesting: an impedance analysis,” IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 71, no. 2, pp. 962-973, 2024.
J82 Fei Gao*, Wei-Hsin Liao, Junrui Liang, and Xinyu Wu*, “Performance enhancement of piezoelectric bending beam-based human knee energy harvester,” IEEE/ASME Transactions on Mechatronics, doi: 10.1109/TMECH.2023.3320735.
J81 Shiyi Liu and Junrui Liang*, “A four-in-one compact design of monostable quasi-static-toggling mechanical energy harvester,” IEEE/ASME Transactions on Mechatronics, doi: 10.1109/TMECH.2023.3323149.
J80 Bo Xue, Liang Wang, Peng Zhao, Minfan Fu, Junrui Liang, and Haoyu Wang*, “Decoupled state-plane analysis of series-series compensated bidirectional IPT systems,” IEEE Transactions on Power Electronics, vol. 39, no. 1, pp. 42-46, 2024.
J79 Kang Yue, Yu Liu*, Xinguo Zhang, Minfan Fu, Junrui Liang, and Haoyu Wang, “Transmitter-side voltage-based mutual inductances and load tracking for two-transmitter lcc-s compensated wireless power transfer systems,” IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 12, no. 2, pp. 2317-2332, 2024.
J78 Zijie Chen, Li Teng, Lan Xu, Jingyi Yu*, and Junrui Liang*, “MP-HAR: a novel motion-powered real-time human activity recognition system,” IEEE Internet of Things Journal, vol. 11, no. 5, pp. 7652-7663, 2024.
J77 Xinlin Wang, Rong He, Haoyu Wang, Junrui Liang, and Minfan Fu*, “Modified LCC compensation and magnetic integration for inductive power transfer,” IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 12, no. 1, pp. 186-194, 2024.
J76 Zijie Chen, Yiming Gao, and Junrui Liang*, “LOPdM: a low-power on-device predictive maintenance system based on self-powered sensing and TinyML,” IEEE Transactions on Instrumentation and Measurement, vol. 72, art. no. 2525213, 2023.
J75 Runhui He, Bo Xue, Mingde Zhou, Minfan Fu, Junrui Liang, Yu Liu, and Haoyu Wang*, “Resonant frequency tracking scheme for LLC converter based on large and small signal combined model,” IEEE Access, vol. 11, pp. 83390-83399, 2023.
J74 Bao Zhao#, Jiahua Wang#, Guobiao Hu, Andrea Colombi, Wei-Hsin Liao* and Junrui Liang*, “Time-sharing orbit jump and energy harvesting in nonlinear piezoelectric energy harvesters using a synchronous switch circuit,” Mechanical Systems and Signal Processing, vol. 200, art. no. 110601, 2023.
J73 Peng Zhao, Junrui Liang, Haoyu Wang, and Minfan Fu*, “Detuned LCC/S-S compensation for stable-output inductive power transfer system under ultra-wide coupling variation,” IEEE Transactions on Power Electronics, vol. 38, no. 10, 12342-12347, 2023.
J72 Li Teng, Haoyu Wang, Yu Liu, Minfan Fu, and Junrui Liang*, “A three-transistor energy management circuit for energy-harvesting-powered IoT devices,” IEEE Internet of Things Journal, vol. 11, no. 1, pp. 1301-1310, 2024.
J71 Jinling Zhu#, Chenchen Dai#, Hailiang Yang#, Yicheng Shan, Jing Ren, Yifan Liu, Jian Li, Wenshuai Chen*, Junrui Liang*, Shengjie Ling*, “IntelliSense bio-ionotronics battery for early warning of geological seepage,” ACS Sensors, vol. 8, pp. 2731−2739, 2023.
J70 Jinling Zhu#, Hailiang Yang#, Leitao Cao#, Chenchen Dai, Jing Ren*, Junrui Liang*, Shengjie Ling*, “Functionalization of structural materials through electro-blown spinning of ultrathin and transparent silk fibroin ionotronic nanofiber skin,” Nano Today, vol. 50, art. no. 101873, 2023.
J69 Zhiwu Xie, Li Teng, Haoyu Wang, Yu Liu, Minfan Fu, and Junrui Liang*, “A self-powered synchronous switch energy extraction circuit for electromagnetic energy harvesting enhancement,” IEEE Transactions on Power Electronics, vol. 38, no. 8, pp. 9972-9982, 2023.
J68 Guangdong Ning, Kunxiao Zhou, Junrui Liang, Haoyu Wang, and Minfan Fu*, “Reconfigurable and modular wireless charger based on dual-band design,” IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 70, no. 9, pp. 3524-3528, 2023.
J67 Mingde Zhou, Chuhan Peng, Junrui Liang, Minfan Fu, and Haoyu Wang*, “Current zero-crossing prediction based critical conduction mode control of totem-pole PFC rectifiers,” IEEE Transactions on Power Electronics, vol. 38, no. 7, pp. 8513-8527, 2023.
J66 Kang Yue, Yu Liu*, Minfan Fu, Junrui Liang, and Haoyu Wang, “Mode switching based parameter identification for 2TX-1RX wireless power transfer systems,” IEEE Access, vol. 11, pp. 46847-46859, 2023.
J65 Zhiwu Xie#, Li Teng#, Yu Yin, and Junrui Liang*, “Synchronous switch energy extraction circuit for motor regenerative braking enhancement,” IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 70, no. 5, pp 1779-1783, 2023.
J64 Chaoqun Qi, Guangce Zheng, Yu Liu, Junrui Liang, Haoyu Wang, and Minfan Fu*, “A simplified three-order small-signal model for capacitive power transfer system using series compensation,” IEEE Transactions on Power Electronics, vol. 38, no. 5, 5688-5692, 2023.
J63 Yiming Gao, Zijie Chen, Haoyu Wang, Yu Liu, Minfan Fu, and Junrui Liang*, “A load-idependent fission-type inductive power transfer system for 3D reconfigurable IoT array,” IEEE Access, vol. 11, pp. 8878-8888, 2023.
J62 Bao Zhao, Shiyi Liu, Wei-Hsin Liao*, and Junrui Liang*, “On the positive and negative damping effect of piezoelectric structure using switched-mode bidirectional energy conversion circuit,” Smart Materials and Structures, vol. 32, no. 1, p. 01LT01, 2023.
J61 Shiyi Liu, Xin Li, Li Teng, Guobiao Hu, and Junrui Liang*, “Energy and dynamic analysis of quasi-static toggling mechanical energy harvester,” Nano Energy, vol. 104, art. no. 107887, 2022.
J60 Yiming Gao, Minfan Fu, Haoyu Wang, and Junrui Liang*, “A 2-D inductive power transfer network for powering massive neighboring IoT devices,” IEEE Access, vol. 10, pp. 113560-113569, 2022. 
J59 Jiawei Liang, Liang Wang, Minfan Fu, Junrui Liang, and Haoyu Wang*, “Overview of voltage regulator modules in 48 V bus-based data center power systems,” CPSS Transactions on Power Electronics and Applications, vol. 7, no. 3, 283-299, 2022.
J58 Yang Yang*, Mulei Ma, Hequan Wu, Quan Yu, Ping Zhang, Xiaohu You, Jianjun Wu, Chenghui Peng, Tak-Shing Peter Yum, Sherman Shen, Hamid Aghvami, Geoffrey Y Li, Jiangzhou Wang, Guangyi Liu, Peng Gao, Xiongyan Tang, Chang Cao, John Thompson, Kat-Kit Wong, Shanzhi Chen, Zhiqin Wang, Merouane Debbah, Schahram Dustdar, Frank Eliassen, Tao Chen, Xiangyang Duan, Shaohui Sun, Xiaofeng Tao, Qinyu Zhang, Jianwei Huang, Shuguang Cui, Wenjun Zhang, Jie Li, Yue Gao, Honggang Zhang, Xu Chen, Xiaohu Ge, Yong Xiao, Cheng-Xiang Wang, Zaichen Zhang, Song Ci, Guoqiang Mao, Changle Li, Ziyu Shao, Yong Zhou, Junrui Liang, Kai Li, Liantao Wu, Fanglei Sun, Kunlun Wang, Zening Liu, Kun Yang, Jun Wang, Teng Gao, and Hongfeng Shu, “6G network AI architecture for everyone-centric customized services,” IEEE Network, vol. 37, no. 5, pp. 71-80, 2023.
J57 Yifan Jiang, Heyuan Li, Yichao Liu, Junrui Liang, and Minfan Fu*, “Multi-constraint design of single-switch resonant converters based on extended impedance method,” IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 11, no. 2, pp. 1901-1912, 2023.
J56 Zijie Chen, Fei Gao*, and Junrui Liang*, “Kinetic energy harvesting based sensing and IoT systems: a review,” Frontiers in Electronics (section Wearable Electronics), vol. 3, p. 1017511, 2022.
J55 Linglong Gao, Li Teng, Minfan Fu, Haoyu Wang, and Junrui Liang*, “A switched-mode self-sensing solution for piezoelectric synchronous electric charge extraction,” IEEE Transactions on Industrial Electronics, vol. 70, no. 7, pp. 7457-7466, 2023.
J54 Liang Wang, Haoyu Wang*, Minfan Fu, Junrui Liang, and Yu Liu, “A three-port energy router for grid-tied PV generation systems with optimized control methods,” IEEE Transactions on Power Electronics, vol. 38, no. 1, pp. 1218-1231, 2023.
J53 Guangce Zheng, Chaoqun Qi, Yu Liu, Junrui Liang, Haoyu Wang, and Minfan Fu*, “Uniform and simplified small-signal model for inductive power transfer systems,” IEEE Transactions on Power Electronics, vol. 38, no. 2, pp. 2709-2719, 2022.
J52 Qiang Liu#, Xin Li#, Hao Zhang#, Jing Ren*, Shuo Yang, Leitao Cao, Junrui Liang*, and Shengjie Ling*, “IntelliSense silk fibroin ionotronic batteries for wildfire detection and alarm,” Nano Energy, vol. 101, art. no. 107630, Oct. 2022.
J51 Yi Yang, Zhiyuan Chen*, Qin Kuai, Junrui Liang, Jingjing Liu, and Xiaoyang Zeng*, “Circuit techniques for high efficiency piezoelectric energy harvesting,” Micromachines, vol. 13, no. 7, p. 1044, 2022.
J50 Yichao Liu, Yiming Gao, and Junrui Liang*, “Simulation of switched-mode power conversion circuits with extended impedance method,” IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 69, No. 9, pp. 3851-3860, 2022.
J49 Shiying Wang, Yiming Yin, Rong He, Junrui Liang, and Minfan Fu*, “High-order compensated capacitive power transfer systems With misalignment insensitive resonance,” IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 69, no. 8, pp. 3450-3460, 2022.
J48 Jing Wang, Zhiyuan Chen*, Zhen Li, Junmin Jiang, Junrui Liang, and Xiaoyang Zeng*, “Piezoelectric energy harvesters: an overview on design strategies and topologies,” IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 69, no. 7, pp. 3057-3063, 2022.
J47 Li Teng, Shiying Wang, and Junrui Liang*, “A multistep charge extractions and voltage bias-flip (MCEBF) interface circuit for piezoelectric energy harvesting enhancement,” IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 10, no. 5, pp. 6293-6303, 2022.
J46 Xin Li, Guobiao Hu, Zhenkun Guo, Junlei Wang, Yaowen Yang*, and Junrui Liang*, “Frequency up-conversion for vibration energy harvesting: a review,” Symmetry, vol. 14, no. 3, p. 631, Mar. 2022.
J45 Jianjun Wang*, Yalei Cao, Hongjun Xiang, Zhiwei Zhang, Junrui Liang, Xin Li, Deyun Ding, Teng Li, and Lihua Tang, “A piezoelectric smart backing ring for high-performance power generation subject to train induced steel-spring fulcrum forces,” Energy Conversion and Management, vol. 257, art. no. 115442, 2022.
J44 Guobiao Hu, Chunbo Lan, Junrui Liang*, Lihua Tang*, and Liya Zhao, “Theoretical study of a two-degree-of-freedom piezoelectric energy harvester under concurrent aeroelastic and base excitation,” Journal of Intelligent Material Systems and Structures, vol. 33, no. 15, pp. 2000-2016, 2022.
J43 Liang Wang, Haoyu Wang*, Minfan Fu, Zhiwu Xie, and Junrui Liang, “Three-port power electronic interface with decoupled voltage regulation and MPPT in electromagnetic energy harvesting systems,” IEEE Transactions on Industrial Applications, vol. 58, no. 2, 2144-2154, 2022.
J42 Guobiao Hu, Chaoyang Zhao, Yaowen Yang*, Xin Li, and Junrui Liang*, “Triboelectric energy harvesting using an origami-inspired structure,” Applied Energy, vol. 306, p. 118037, Jan. 2022.
J41 Yongji Gao, Guobiao Hu*, Bao Zhao, Kunyong Lv, and Junrui Liang*, “Synchronized switch piezoelectric energy harvesting using rotating magnetic ball and reed switches,” Smart Materials and Structures, vol. 30, no. 10, p. 105023, 2021.
J40 Xin Li, Hong Tang, Guobiao Hu, Bao Zhao, and Junrui Liang*, “ViPSN-pluck: a transient-motion-powered motion detector,” IEEE Internet of Things Journal, vol. 9, no. 5, pp. 3372-3382, 2022.
J39 Bao Zhao, Jiahua Wang, Junrui Liang*, and Wei-Hsin Liao*, “A bidirectional energy conversion circuit towards multi-functional piezoelectric energy harvesting and vibration excitation purposes,” IEEE Transactions on Power Electronics, vol. 36, no. 11, pp. 12889-12897, 2021.
J38 Yiming Gao, Junrui Liang*, and Yabin Liao, “Multiple harmonics extended impedance model of piezoelectric energy harvesting system,” IEEE/ASME Transactions on Mechatronics, vol. 27, no. 2, pp. 1185-11959, 2022.
J37 Guobiao Hu, Junrui Liang, Lihua Tang*, and Junlei Wang*, “Improved theoretical analysis and design guidelines of a two-degree-of freedom galloping piezoelectric energy harvester,” Journal of Intelligent Material Systems and Structures, vol. 33, no. 1, pp. 210-230, 2022.
J36 Zhenkun Guo, Guobiao Hu, Jingchao Jiang, Liuding Yu, Xin Li, and Junrui Liang*, “Theoretical and experimental study of the vibration dynamics of a 3D-printed sandwich beam with hourglass lattice truss core,” Frontiers in Mechanical Engineering (Special Issue invited paper), vol. 7, art. no. 651998, 2021.
J35 Junrui Liang*, Xin Li, and Hailiang Yang, “Kinetic energy harvesting toward battery-free IoT: fundamentals, co-design necessity, and prospects (invited paper),” ZTE Communications, vol. 19, no. 1, pp. 48–60, Mar. 2021.
J34 Guobiao Hu, Lihua Tang*, Junrui Liang*, Chunbo Lan, and Raj Das, “Acoustic-elastic metamaterials and phononic crystals for energy harvesting: a review,” Smart Materials and Structures, vol 30, no. 8, art. no. 085025, 2021.
J33 Junlei Wang, Shaokang Sun, Lihua Tang*, Guobiao Hu*, and Junrui Liang, “On the use of metasurface for vortex-induced vibration suppression or energy harvesting,” Energy Conversion and Management, vol. 235, art. no. 113991, May 2021.
J32 Jinxi Zhang, Shaobo Gong, Xin Li, Junrui Liang, Zhong Lin Wang*, and Kailiang Ren*, “A wind‐driven poly (tetrafluoroethylene) electret and polylactide polymer‐based hybrid nanogenerator for self‐powered temperature detection system,” Advanced Sustainable Systems, art. no. 2000192. 2021.
J31 Bao Zhao, Kang Zhao, Xinchen Wang, Junrui Liang*, and Zhiyuan Chen, “Series synchronized triple bias-flip circuit: maximizing the usage of single storage capacitor for piezoelectric energy harvesting enhancement,” IEEE Transactions on Power Electronics, vol. 36, no. 6, pp. 6787-6796, 2021.
J30 Bo Xue, Haoyu Wang*, Junrui Liang, Qi Cao, and Zhiqing Li, “Phase-shift modulated interleaved LLC converter with ultra-wide output voltage range,” IEEE Transactions on Power Electronics, vol. 36, no. 1, pp. 493-503, 2021.
J29 Xin Li, Li Teng, Hong Tang, Jingying Chen, Haoyu Wang, Yu Liu, Minfan Fu, and Junrui Liang*, “ViPSN: a vibration-powered IoT platform,” IEEE Internet of Things Journal, vol. 8, no. 3, pp. 1728-1739, 2021.
J28 Guobiao Hu, Junrui Liang*, Chunbo Lan, and Lihua Tang*, “A twist piezoelectric beam for multi-directional energy harvesting,” Smart Materials and Structures, vol. 29, no. 11, art. no. 11LT01, 2020.
J27 Anming Gao, Kangfu Liu, Junrui Liang, and Tao Wu*, “AlN MEMS filters with extremely high bandwidth widening capability,” Microsystems & Nanoengineering, vol. 6, art. no. 74, 2020.
J26 Shiying Wang, Junrui Liang, and Minfan Fu*, “Analysis and design of capacitive power transfer systems based on induced voltage source model,” IEEE Transactions on Power Electronics, vol. 35, no. 10, pp. 10532-10541, 2020.
J25 Bao Zhao, Jiahua Wang, Junrui Liang*, and Wei-Hsin Liao, “A dual-effect solution for broadband piezoelectric energy harvesting,” Applied Physics Letters, vol. 116, no. 6, p. 063901, 2020.
J24 Jiahua Wang, Bao Zhao, Wei-Hsin Liao*, and Junrui Liang, “New insight into piezoelectric energy harvesting with mechanical and electrical nonlinearities,” Smart Materials and Structures, vol. 29, art. no. 04LT01 (5pp), 2020.
J23 Rong He, Peng Zhao, Minfan Fu*, Yu Liu, Haoyu Wang, and Junrui Liang, “Decomposition and synthesis of high-order compensated inductive power transfer systems for improved output controllability,” IEEE Transactions on Microwave Theory and Techniques, vol. 67, no. 11, pp. 4514-4523, 2019.
J22 Chen Chen, Bao Zhao, and Junrui Liang*, “Revisit of synchronized electric charge extraction (SECE) in piezoelectric energy harvesting by using impedance modeling,” Smart Materials and Structures, vol. 28, no. 10, art. no. 105053, 2019.
J21 Kangqi Fan*, Meiling Cai, Fei Wang, Lihua Tang, Junrui Liang, Yipeng Wu, Hengheng Qua, and Qinxue Tan, “A string-suspended and driven rotor for efficient ultra-low frequency mechanical energy harvesting,” Energy Conversion and Management, vol. 198, p. 111820, Oct. 2019.
J20 Guobiao Hu, Lihua Tang*, Junrui Liang, and Raj Das, “Modelling of a cantilevered energy harvester with partial piezoelectric coverage and shunted to practical interface circuits,” Journal of Intelligent Material Systems and Structures, vol. 30, no. 13, pp. 1896–1912, Aug. 2019.
J19 Yabin Liao* and Junrui Liang, “Unified modeling, analysis and comparison of piezoelectric vibration energy harvesters,” Mechanical Systems and Signal Processing, vol. 123, pp. 403-425, 2019.
J18 Haili Liu, Rui Hua, Yang Lu, Ya Wang*, Emre Salman, and Junrui Liang, “Boosting the efficiency of a footstep piezoelectric-stack energy harvester by using the synchronized switch technology,” Journal of Intelligent Material Systems and Structures, vol. 30, no. 6, pp 813-822, 2019.
J17 Junrui Liang*, Yuheng Zhao, and Kang Zhao, “Synchronized triple bias-flip interface circuit for piezoelectric energy harvesting enhancement,” IEEE Transactions on Power Electronics, vol. 34, no. 1, pp. 275-286, 2019.
J16 Tao Huang, Siwei Yang, Peng He*, Jing Sun, Shuai Zhang, Dongdong Li, Yan Meng, Jiushun Zhou, Huixia Tang, Junrui Liang*, Guqiao Ding*, and Xiaoming Xie, “Phase separation induced PVDF/graphene coating on fabrics towards flexible piezoelectric sensors,” ACS Applied Materials & Interfaces, vol. 10, no. 36, pp. 30732–30740, 2018.
J15 Yabin Liao* and Junrui Liang, “Maximum power, optimal load, and impedance analysis of piezoelectric vibration energy harvesters,” Smart Materials and Structures, vol. 27, no. 7, art. no. 075053, 2018.
J14 Liya Zhao, Lihua Tang, Junrui Liang, and Yaowen Yang, “Synergy of wind energy harvesting and synchronized switch harvesting interface circuit,” IEEE/ASME Transactions on Mechatronics, vol. 22, no. 2, pp. 1093-1103, 2017.
J13 Junrui Liang*, “Synchronized bias-flip interface circuits for piezoelectric energy harvesting enhancement: a general model and prospects,” Journal of Intelligent Material Systems and Structures, vol. 28, no. 3, pp. 339–356, 2017.
J12 Haili Liu, Junrui Liang*, and Cong Ge, “A mechatronic power boosting design for piezoelectric generators,” Applied Physics Letters, vol. 107, no. 14, art. no. 141902, 2015.
J11 Junrui Liang*, Henry Shu-Hung Chung, and Wei-Hsin Liao, “Dielectric loss against piezoelectric power harvesting,” Smart Materials and Structures, vol. 23, no. 9, art. no. 092001, 2014.
J10 Junrui Liang and Wei-Hsin Liao*, “Impedance modeling and analysis for piezoelectric energy harvesting systems,” IEEE/ASME Transactions on Mechatronics, vol. 17, no. 6, pp. 1145-1157, 2012.
J9 Junrui Liang and Wei-Hsin Liao*, “Improved design and analysis of self-powered synchronized switch interface circuit for piezoelectric energy harvesting systems,” IEEE Transactions on Industrial Electronics, vol. 59, no. 4, pp. 1950–1960, 2012. (A ESI Highly Cited Paper as of July 2019)
J8 Junrui Liang* and Wei-Hsin Liao, “Steady-state simulation and optimization of Class-E power amplifiers with extended impedance method,” IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 58, no. 6, pp. 1433–1445, 2011.
J7 Junrui Liang and Wei-Hsin Liao*, “Impedance network for power optimization in piezoelectric energy harvesting systems,” HKIE Transactions, vol. 18, no. 4, Dec. 2011. (Shortlisted paper for the HKIE Outstanding Paper Award for Young Engineers/Researchers 2011)
J6 Junrui Liang and Wei-Hsin Liao*, “On the influence of transducer internal loss in piezoelectric energy harvesting with SSHI interface,” Journal of Intelligent Material Systems and Structures, vol. 22, no. 5, pp. 503–512, 2011.
J5 Tianliang Yang, Junrui Liang, Chunyu Zhao, and Dayue Chen*, “Analysis and design of Class-E power amplifiers at any duty ratio in frequency domain,” Analog Integrated Circuits and Signal, vol. 67, no. 2, pp. 149–156, 2011.
J4 Junrui Liang and Wei-Hsin Liao*, “Energy flow in piezoelectric energy harvesting systems,” Smart Materials and Structures, vol. 20, no. 1, art. no. 015005 (11 pages), 2011. (One of the top 20 most cited articles published by Smart Materials and Structures in 2011)
J3 Junrui Liang and Wei-Hsin Liao*, “Piezoelectric energy harvesting and dissipation on structural damping,” Journal of Intelligent Material Systems and Structures, vol. 20, no. 5, pp. 515–527, 2009.
J2 Yulong Zhu, Junrui Liang, Haoran Bi, and Ping Cai*, “The design and development of teaching apparatus for correlation velocity measurement technique,” Experiment Science and Technology (in Chinese), no. 11, pp. 17–18, 2007.
J1 Junrui Liang and Chunyu Zhao*, “A design of transcutaneous power link circuit,” Application of Electronic Technique (in Chinese), no. 4, pp. 87–89, 2007.

Conference papers

C78 Hugo Hung Tin Chan, Haisu Liao, Xuan Zhao, Junrui Liang, Wei-Hsin Liao, Xinyu Wu, and Fei Gao*, “A smart wearable device for capturing biomechanical energy from human knee motion,” Proceedings of the 2024 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, Boston, USA, Jul. 15-18, 2024. (AIM 2024)
C77 Wenyan Sun, Yifan Jiang, Haoyu Wang, Junrui Liang, and Minfan Fu*, “Load-insensitive design of class E inverter based on inequality constraints,” Proceedings of the 2024 International Power Electronics and Motion Control Conference, Chengdu, China, May 17-20, 2024. (IPEMC 2024-ECCE Asia)
C76 Jiacong Qiu and Junrui Liang*, “A synchronous current inversion and energy extraction circuit for electromagnetic energy harvesting,” Proceedings of the 2024 IEEE International Symposium on Circuits and Systems, Singapore, May 19-22, 2024. (ISCAS 2024)
C75 Cheng Tian, Zijie Chen, and Junrui Liang*, “A battery-free and sensorless photovoltaic tag for real-time indoor light irradiance evaluation,” Proceedings of the 2024 IEEE International Symposium on Circuits and Systems, Singapore, May 19-22, 2024. (ISCAS 2024)
C74 Yin Yu, Guobiao Hu, and Junrui Liang*, “Energy optimization of quasi-static-toggling electromagnetic energy harvester,” Proc. SPIE 12946, Active and Passive Smart Structures and Integrated Systems XVIII, 129460W, Long Beach, USA, March 25-28, 2024. (SPIE SS/NDE 2024)
C73 Gongwei Wang, Guobiao Hu, and Junrui Liang*, “Low-cost and compact piezoelectric energy harvesting floor tile for battery-free Bluetooth smart pavement,” Proc. SPIE 12949, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2024, 129491E, Long Beach, USA, March 25-28, 2024. (SPIE SS/NDE 2024)
C72 Cheng Tian, Zijie Chen, and Junrui Liang*, “A wireless voting system built with many battery-free motion-powered bluetooth buttons,” The 2nd IEEE International Power Electronics and Application Symposium, Guangzhou, China, Nov. 10-13, 2023. (PEAS 2023)
C71 Jiacong Qiu and Junrui Liang*, “A synchronized multiple bias-flip interface circuit for piezoelectric energy harvesting using optimized switched-capacitor arrays,” The 2nd IEEE International Power Electronics and Application Symposium, Guangzhou, China, Nov. 10-13, 2023. (PEAS 2023)
C70 Zijie Chen, Yiming Gao, and Junrui Liang*, “Smart minion: a low-cost serverless multimodal access control system based on face recognition and gesture recognition,” 2023 International Conference on Artificial Intelligence of Things and Systems, Xi'an, China, Oct. 19-22, 2023. (AIoTSys 2023)
C69 Zijie Chen, Yiming Gao, and Junrui Liang*, “A self-powered predictive maintenance system based on piezoelectric energy harvesting and TinyML,” ACM/IEEE International Symposium on Low Power Electronics and Design, Vienna, Austria, Aug. 7-8, 2023. (ISLPED 2023)
C68 Zijie Chen, Yiming Gao, and Junrui Liang*, “A self-powered sensing system with embedded TinyML for anomaly detection,” 3rd IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, Shanghai, China, July 26-28, 2023. (IESES 2023)
C67 Guobiao Hu*, Xin Li, Junlei Wang, Lihua Tang, and Junrui Liang, “Nonlinear dynamics of two-degree-of-freedom vortex-induced vibration energy harvester,” Proceedings of the ASME 2023 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Austin, TX, USA, September 11–13, 2023. (SMASIS 2023)
C66 Siyu Jin, Li Teng, Xin Li, and Junrui Liang*, “Mechanical and electrical energy buffer-release mechanisms for motion-powered IoT applications,” Proceedings of the 2023 IEEE International Symposium on Circuits and Systems, Monterey, USA, May 21-25, 2023. (ISCAS 2023)
C65 Yue Zhu, Xin Li*, and Junrui Liang*, “Motion-powered Gameboy,” In Proceedings of the 20th ACM Conference on Embedded Networked Sensor Systems. Association for Computing Machinery, Boston, USA, Nov. 6-9, 2022. (SenSys' 22)
C64 Zhiwu Xie, Li Teng, and Junrui Liang*, “A self-powered synchronous switch interface circuit for electromagnetic energy harvesting enhancement,” International Conference on Wireless Power Transfer, Chongqing, China, Sept. 16-19, 2022. (ICWPT 2022)
C63 Zijie Chen, Li Teng, and Junrui Liang*, “A battery-free human activity recognition system based on kinetic energy harvesting,” International Conference on Wireless Power Transfer, Chongqing, China, Sept. 16-19, 2022. (ICWPT 2022)
C62 Zehui Li, Junrui Liang, and Haoyu Wang*, “Weight judgement based thermal balancing strategy for interleaved buck converters,” Proceedings of the IEEE Energy Conversion Congress & Expo, Detroit, USA, Sept. 2022. (ECCE 2022)
C61 Li Teng, Zhiwu Xie, Yu Yin, and Junrui Liang*, “Synchronous switch current reversion (SSCR) technique for motor braking enhancement,” Proceedings of the IEEE Energy Conversion Congress & Expo, Detroit, USA, Sept. 2022. (ECCE 2022)
C60 Jiacong Qui and Junrui Liang*, “A Self-Powered Extensible SECE Rectifier for Piezoelectric Energy Harvesting,” Proceedings of International Power Electronics Conference, IPEC-Himeji 2022, Himeji, Japan, May 15--19, 2022. (IPEC/ECCE Asia 2022)
C59 Jing Wang, Zhiyuan Chen*, Junrui Liang, Xu Cheng, Jun Han, and Xiaoyang Zeng, “A cross regulation reduced multi-output and multi-VCR piezoelectric energy harvesting system using shared capacitors,” Proceedings of the 2022 IEEE International Symposium on Circuits and Systems, Austin, USA, May 28--Jun. 1, 2022. (ISCAS 2022)
C58 Xinling Yue, Yiwei Zou, Zhelun Chen, Junrui Liang, and Sijun Du*, “A reconfigurable cold-startup SSHI rectifier with 4X lower input amplitude requirement for piezoelectric energy harvesting,” Proceedings of the 2022 IEEE International Symposium on Circuits and Systems, Austin, USA, May 28--Jun. 1, 2022. (ISCAS 2022)
C57 Hailiang Yang, Li Teng, and Junrui Liang*, “A battery-free pavement roughness estimation system based on kinetic energy harvesting,” Proceedings of the 2022 IEEE International Symposium on Circuits and Systems, Austin, USA, May 28--Jun. 1, 2022. (ISCAS 2022)
C56 Li Teng, Junrui Liang*, and Sijun Du, “A nano-power wake-up circuit for energy-driven IoT applications,” Proceedings of the 2022 IEEE International Symposium on Circuits and Systems, Austin, USA, May 28--Jun. 1, 2022. (ISCAS 2022)
C55 Kang Yue, Yu Liu*, Peng Zhao, Minfan Fu, Haoyu Wang, and Junrui Liang, “Coupling coefficient and load estimation for wireless power transfer systems with transmitter side input current,” The 36th Annual IEEE Applied Power Electronics Conference & Exposition, Phoenix, USA, Jun. 9-12, 2021. (APEC 2021)
C54 Liang Wang, Haoyu Wang*, Yu Liu, Junrui Liang, and Minfan Fu, “A fully ZVS dual-active-bridge based three-port converter with high integration,” The 36th Annual IEEE Applied Power Electronics Conference & Exposition, Phoenix, USA, Jun. 9-12, 2021. (APEC 2021)
C53 Guangce Zheng, Kai Zhao, Peng Zhao, Haoyu Wang, Junrui Liang, and Minfan Fu*, “Reduced-order model for inductive power transfer systems,” The 36th Annual IEEE Applied Power Electronics Conference & Exposition, Phoenix, USA, Jun. 9-12, 2021. (APEC 2021)
C52 Linglong Gao, Li Teng, Junrui Liang*, Haoyu Wang, Yu Liu, and Minfan Fu, “A self-sensing synchronous electric charge extraction (SECE) solution for piezoelectric energy harvesting enhancement,” The 36th Annual IEEE Applied Power Electronics Conference & Exposition, Phoenix, USA, Jun. 9-12, 2021. (APEC 2021)
C51 Xin Li, Hong Tang, Guobiao Hu, and Junrui Liang*, “Live demo of a transient-motion-powered human motion detector,” Proceedings of the 2021 IEEE International Symposium on Circuits and Systems, Daegu, Korea, May 23-26, 2021. (ISCAS 2021)
C50 Yichao Liu and Junrui Liang*, “Equivalent impedance analysis and compensation of full-wave bridge rectifier under high-frequency operation with extended impedance method,” Proceedings of the 2021 IEEE International Symposium on Circuits and Systems, Daegu, Korea, May 23-26, 2021. (ISCAS 2021)
C49 Linglong Gao, Li Teng, Junrui Liang*, and Jianping Guo, “A switched-mode time-sharing solution for piezoelectric energy harvesting and vibration sensing,” Proceedings of the 2021 IEEE International Symposium on Circuits and Systems, Daegu, Korea, May 23-26, 2021. (ISCAS 2021)
C48 Chuhui Wang, Yanhang Chen, Shaochen Xi, Jianping Guo*, and Junrui Liang, “An integrated piezoelectric energy harvesting interface circuit with adaptive S3BF control,” Proceedings of the 2021 IEEE International Symposium on Circuits and Systems, Daegu, Korea, May 23-26, 2021. (ISCAS 2021)
C47 Linglong Gao, Li Teng, and Junrui Liang*, “A switched-mode piezoelectric interface circuit for dynamics sensing, energy harvesting, and vibration excitation multi-functional purpose,” SPIE Smart Structures and Nondestructive Evaluation, 7-10 March 2021. (SPIE SS/NDE 2021)
C46 Guobiao Hu, Junlei Wang, Chunbo Lan, Lihua Tang*, and Junrui Liang*, “Deep-learning assisted finite element model of a galloping piezoelectric energy harvester,” SPIE Smart Structures and Nondestructive Evaluation, 7-10 March 2021. (SPIE SS/NDE 2021)
C45 Kangfu Liu, Junrui Liang, and Tao Wu*, “AlN hybrid-coupled resonators with high acoustic velocity layer,” Proceedings of the 2020 IEEE International Ultrasonics Symposium, pp. 1-4, 2020. (IUS 2020)
C44 Xin Li, Hong Tang, Bao Zhao, and Junrui Liang*, “System design and implementation of a transient-motion-powered IoT sensor node,” Proceedings of the ASME 2020 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Irvine, CA, USA, September 14–16, 2020. (SMASIS 2020) (Finalist of Best Student Hardware Competision)
C43 Xin Li, Hong Tang, Yiyao Zhu, Haoyu Wang, and Junrui Liang*, “Power solution of a vibration-powered sensing node,” Proceedings of the 9th International Power Electronics and Motion Control Conference, Nanjing, China, May 31-June 3, 2020. (IPEMC - ECCE Asia 2020)
C42 Zhen Li, Zhiyuan Chen*, Qiping Wan, Qin Kuai, Junrui Liang, Philip K.T. Mok, and Xiaoyang Zeng, “An Energy harvesting system with reconfigurable piezoelectric energy harvester array for IoT applications,” Proceedings of the 2020 IEEE International Symposium on Circuits and Systems, Sevilla, Spain, May 17-20 2020. (ISCAS 2020)
C41 Shaochen Xi, Weimin Li, Jianping Guo*, and Junrui Liang, “A self-powered piezoelectric energy harvesting interface circuit based on adaptive SSHI with fully integrated switch control,” Proceedings of the 2020 IEEE International Symposium on Circuits and Systems, Sevilla, Spain, May 17-20 2020. (ISCAS 2020)
C40 Li Teng, Junrui Liang*, and Zhiyuan Chen, “Multiple charge extractions with bias-flip interface circuit for piezoelectric energy harvesting,” Proceedings of the 2020 IEEE International Symposium on Circuits and Systems, Sevilla, Spain, May 17-20 2020. (ISCAS 2020)
C39 Xin Li, Hong Tang, Junrui Liang*, and Lihua Tang, “Exploring the magnetic plucking motion towards a transient-motion-powered IoT sensor node,” Proceedings of SPIE Conference 11376, Active and Passive Smart Structures and Integrated Systems IX, 113761U, 22 April 2020. (SPIE SS/NDE 2020)
C38 Guobiao Hu, Lihua Tang*, Junrui Liang, and Raj Das, “A tapered beam piezoelectric energy harvester shunted to P-SSHI interface,” Proceedings of SPIE Conference 11376, Active and Passive Smart Structures and Integrated Systems IX, 1137606, 22 April 2020. (SPIE SS/NDE 2020)
C37 Shiying Wang, Junrui Liang, Haoyu Wang, and Minfan Fu*, “An Induced Voltage Source Model for Capacitive Power Transfer,” IEEE Applied Power Electronics Conference and Exposition, New Orleans, LA, USA, Mar. 15-19, 2020. (APEC 2020)
C36 Jiahua Wang, Bao Zhao, Junrui Liang, and Wei-Hsin Liao*, “Orbit jumps of monostable energy harvesters by a bidirectional energy conversion circuit,” Proceedings of the ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Anaheim, CA, USA, August 18-21, 2019. (IDETC/CIE2019)
C35 Kang Zhao, Junrui Liang*, and Haoyu Wang, “Series synchronized triple bias-flip (S-S3BF) interface circuit for piezoelectric energy harvesting,” Proceedings of the 2019 IEEE International Symposium on Circuits and Systems, Sapporo, Japan, May 2019. (ISCAS 2019)
C34 Yiming Gao and Junrui Liang*, “Harmonic electromechanical modeling of vibration energy harvesting systems using extended impedance method,” The 2nd International Conference on Modeling in Mechanics and Materials, Suzhou, China, March 29-31, 2019. (CMMM 2019)
C33 Bao Zhao, Jiahua Wang, Junrui Liang*, and Wei-Hsin Liao, “A bidirectional energy conversion circuit for piezoelectric energy harvesting and vibration exciting purposes,” Proceedings of SPIE Conference 10967, Active and Passive Smart Structures and Integrated Systems, Denver, USA, March 3-7, 2019. (SPIE SS/NDE 2019)
C32 Hong Tang, Yiming Gao, and Junrui Liang*, “Improvement on impedance model of electromagnetic energy harvesting systems,” Proceedings of SPIE Conference 10967, Active and Passive Smart Structures and Integrated Systems, Denver, USA, March 3-7, 2019. (SPIE SS/NDE 2019)
C31 Yabin Liao* and Junrui Liang, “Generalized modeling and analysis of piezoelectric vibration energy harvesters,” Proceedings of SPIE Conference 10967, Active and Passive Smart Structures and Integrated Systems, Denver, USA, March 3-7, 2019. (SPIE SS/NDE 2019)
C30 Shiying Wang, Chen Chen, and Junrui Liang*, “Piezoelectric energy harvesting enhancement by using a bidirectional buck-boost converter,” Proceedings of the 29th International Conference on Adaptive Structures and Technologies, Seoul, Korea, Oct. 2018. (ICAST 2018)
C29 Junlong Wang and Junrui Liang*, “Energy harvesting from horizontal and vertical backpack movements during walking,” Proceedings of the 2018 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, Auckland, New Zealand, Jul. 2018. (AIM 2018)
C28 Guobiao Hu, Bao Zhao, Lihua Tang*, Junrui Liang, and Raj Das, “Optimization of cantilevered piezoelectric energy harvester with standard DC interface circuit,” ISMA International Conference on Noise and Vibration Engineering, Leuven, Belgium, Sept. 2018. (ISMA 2018)
C27 Bao Zhao, Junrui Liang*, and Kang Zhao, “Phase-variable control of parallel synchronized triple bias-flips interface circuit towards broadband piezoelectric energy harvesting,” Proceedings of the 2018 IEEE International Symposium on Circuits and Systems, Florence, Italy, May 2018. (ISCAS 2018)
C26 Junrui Liang*, “An improvement on extended impedance method towards efficient steady-state analysis of high-frequency class-E resonant inverters,” IPEC-Niigata 2018 - ECCE Asia, Niigata, Japan, May 20-24 2018. (ECCE Asia 2018)
C25 Bao Zhao and Junrui Liang*, “On the circuit solutions towards broadband and high-capability piezoelectric energy harvesting systems,” Proceedings of SPIE Conference 10595, Active and Passive Smart Structures and Integrated Systems, Denver, USA, March 4-8, 2018. (SPIE SS/NDE 2018)
C24 Kang Zhao, Junrui Liang*, and Chen Chen, “Parallel synchronized septuple bias-flip circuit for piezoelectric energy harvesting enhancement,” The 43rd Annual Conference of the IEEE Industrial Electronics Society, Beijing, China, Oct. 29 - Nov. 1, 2017. (IECON 2017)
C23 Junrui Liang* and Chenbin Zhou, “使用双参数可调同步开关功率调理电路提升压电俘能器发电效能,拓展发电频宽 (Enhancing the piezoelectric energy harvesting capability and broadening the harvesting bandwidth by using a dual-parameter tunable synchronized switch power conditioning circuit),” 中国力学大会 (The Chinese Congress on Theoretical and Applied Mechanics), Beijing, China, August 13-16, 2017.
C22 Junrui Liang* and Shuai Zhang, “An efficient steady-state simulation of class-e resonant inverter considering MOSFET parasitic components by using extended impedance method,” International Future Energy Electronics Conference 2017 – ECCE Asia, Kaohsiung, Taiwan, Jun. 2017. (ECCE Asia 2017)
C21 Kang Zhao, Yuheng Zhao, and Junrui Liang*, “Live Demo of A Vibration-Powered Bluetooth Sensor with Running PFC Power Conditioning,” Proceedings of the 2017 IEEE International Symposium on Circuits and Systems, Baltimore, USA, May 2017. (ISCAS 2017)
C20 Kang Zhao, Yuheng Zhao, and Junrui Liang*, “A vibration-powered Bluetooth wireless sensor node with running PFC power conditioning,” Proceedings of the 2017 IEEE International Symposium on Circuits and Systems, Baltimore, USA, May 2017. (ISCAS 2017)
C19 Chen Chen, Kang Zhao, and Junrui Liang*, “Impedance analysis of piezoelectric energy harvesting system using synchronized charge extraction interface circuit,” Proc. SPIE 10164, Active and Passive Smart Structures and Integrated Systems 2017, 101642Q, Portland, USA, Mar. 2017. (SPIE SS/NDE 2017)
C18 Junrui Liang*, Cong Ge, and Yi-Chung Shu, “Impedance modeling of electromagnetic energy harvesting system using full-wave bridge rectifier,” Proc. SPIE 10164, Active and Passive Smart Structures and Integrated Systems 2017, 101642N, Portland, USA, Mar. 2017. (SPIE SS/NDE 2017)
C17 Yuheng Zhao and Junrui Liang*, “Synchronized triple bias-flip circuit for piezoelectric energy harvesting enhancement: Operation principle and experimental validation,” Proceedings of the IEEE Energy Conversion Congress & Expo, Milwaukee, USA, Sept. 2016. (ECCE 2016)
C16 Junrui Liang*, “Design of class-E power amplifier with nonlinear components by using extended impedance method,” Proceedings of the 2016 IEEE International Symposium on Circuits and Systems, Montreal, Canada, May 2016. (ISCAS 2016)
C15 Haili Liu, Cong Ge, Junrui Liang*, and Ya Wang, “A comparative study on the mechatronic and electronic self-powered synchronized switch interfaces for piezoelectric energy harvesting systems,” Proceedings of SPIE Conference 9799, Active and Passive Smart Structures and Integrated Systems, Las Vegas, USA, Mar. 2016. (SPIE SS/NDE 2016)
C14 Yuheng Zhao, Chenbin Zhou, and  Junrui Liang*, “Implementation of synchronized triple bias-flip interface circuit towards higher piezoelectric energy harvesting capability,” Proceedings of the 26th International Conference on Adaptive Structures and Technologies, Kobe, Japan, Oct. 2015. (ICAST 2015)
C13 Haili Liu, Cong Ge, and Junrui Liang*, “A mechanical solution of self-powered SSHI interface for piezoelectric energy harvesting systems,” Proceedings of SPIE Conference 9431, Active and Passive Smart Structures and Integrated Systems, San Diego, USA, Mar. 2015. (SPIE SS/NDE 2015)
C12 Liya Zhao, Junrui Liang, Lihua Tang*, Yaowen Yang, and Haili Liu, “Enhancement of galloping-based wind energy harvesting by synchronized switching interface circuits,” Proceedings of SPIE Conference 9431, Active and Passive Smart Structures and Integrated Systems, San Diego, USA, Mar. 2015. (SPIE SS/NDE 2015)
C11 Haili Liu and Junrui Liang*, “Design of a class-E inverter for piezoelectric ultrasound generation against load variation,” Proceedings of 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications, pp. 118-121, Beijing, China, Oct. 2014. (SPAWDA 2014)
C10 Junrui Liang*, "Synchronized triple bias-flips harvesting circuit: a new solution for piezoelectric energy harvesting enhancement,” Proceedings of the 25th International Conference on Adaptive Structures and Technologies, The Hague, The Netherland, Oct. 2014. (ICAST 2014)
C9 Junrui Liang*, Shuo Shi, and Wei-Hsin Liao, “On the counteractive effect of dielectric loss in piezoelectric energy harvesting,” Proceedings of SPIE Conference 9057, Active and Passive Smart Structures and Integrated Systems 2014, 90571F, San Diego, USA, Mar. 2014. (SPIE SS/NDE 2014)
C8 Junrui Liang* and Henry Shu-Hung Chung, “Best voltage bias-flipping strategy towards maximum piezoelectric power generation,” Journal of Physics: Conference Series, vol. 476, p. 012025, London, UK, Dec. 2013. (PowerMEMS 2013)
C7 Junrui Liang and Wei-Hsin Liao*, “Impedance analysis for piezoelectric energy harvesting devices under displacement and force excitations,” Proceedings of 2010 IEEE International Conference on Information and Automation, pp. 42–47, Harbin, China, Jun. 2010. (ICIA 2010) (Won the Best Information Paper Award)
C6 Junrui Liang and Wei-Hsin Liao*, “Impedance matching for improving piezoelectric energy harvesting systems,” Proceedings of SPIE Conference 7643, Active and Passive Smart Structures and Integrated Systems 2010, 76430K, San Diego, USA, Mar. 2010 (SPIE SS/NDE 2010) (One of the most frequently downloaded papers from the SPIE Digital Library, as of 9 Sep. 2010)
C5 Junrui Liang and Wei-Hsin Liao*, “On the influence of dielectric loss in piezoelectric energy harvesting with SSHI interface,” Proceedings of the 20th International Conference on Adaptive Structures and Technologies, pp. 872–883, Hong Kong, Oct. 2009. (ICAST 2009)
C4 Junrui Liang and Wei-Hsin Liao*, “An improved self-powered switching interface for piezoelectric energy harvesting,” Proceedings of 2009 IEEE International Conference on Information and Automation, pp. 945–950, Zhuhai/Macau, China, Jun. 2009. (ICIA 2009) (Won the Best Paper Award in Automation)
C3 Junrui Liang* and Wei-Hsin Liao, “Simulation and optimization of class-E power amplifiers with extended impedance method,” Proceedings of 2009 IEEE International Symposium on Circuits and Systems, pp. 2493–2496, Taipei, Taiwan, May 2009. (ISCAS 2009)
C2 Junrui Liang and Wei-Hsin Liao*, “On the energy flow in piezoelectric energy harvesting with SSHI interface,” Proceedings of the 19th International Conference on Adaptive Structures and Technologies, 11 pages, Ascona, Switzerland, Oct. 2008. (ICAST 2008) (Received the Best Student Contributions Award)
C1 Junrui Liang and Wei-Hsin Liao*, “Energy harvesting and dissipation with piezoelectric materials,” Proceedings of 2008 IEEE International Conference on Information and Automation, pp. 446–451, Zhangjiajie, China, Jun. 2008. (ICIA 2008)
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