Mechatronics and Energy TransformAtion             Laboratory
Mechatronics and Energy TransformAtion 	
            Laboratory

Journal papers

J27 Bo Xue, Haoyu Wang*, Junrui Liang, Qi Cao, Zhiqing Li, “Phase-shift modulated interleaved LLC converter with ultra-wide output voltage range", IEEE Transactions on Power Electronics, early access.
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, early access.
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, 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 Circuit and System 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

C44 Xin Li, Hong Tang, 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)
C43 Xin Li 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, 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*, 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, 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)