Junrui Liang
Assistant Professor
Graduated School:Ph.D., The Chinese University of Hong Kong, China
Tel:(021) 20685268
Major:Electronic and Information Engineering
Office:Room 1D-301D, SIST Building
Research Interests
Selected Publications


  • Low energy embedded system

  • Ubiquitous Internet of Things (IoT)

  • Power management integrated circuit (PMIC)

  • Energy harvesting

  • Mechatronics


Junrui Liang is currently the CiPES Director, the Resource Management Committee Director and the Deputy director of EHS Committee.

Dr. Junrui Liang is an assistant professor at Shanghaitech University, China. He has received the B.E. and M.E. degrees in Instrument Science and Technology from Shanghai Jiao Tong University and the Ph.D. degree in Mechanical and Automation Engineering from The Chinese University of Hong Kong. Dr. Liang is an Associate Editor of the SCI-indexed journal IET Circuits, Devices & Systems since 2018. He is a member of the Technical Committee of Power and Energy Circuits and Systems in IEEE Circuits and Systems Society and the Energy Harvesting Technical Committee in the ASME Aerospace Division. He is also the General Chair of the 2nd International Conference on Vibration and Energy Harvesting Applications (VEH 2019). Dr. Liang’s research interests include energy conversion and power electronics, kinetic energy harvesting and vibration control, mechatronics, and Smart IoT devices. As of March 2019, his research has led to the publications of over 50 technical papers in international journals and conference proceedings and two China patent applications. Dr. Liang is a recipient of Best Student Contributions Award in the 19th International Conference on Adaptive Structures and Technologies; two Best Paper Awards in the IEEE International Conference on Information and Automation in 2009 and 2010; the 2010 Postgraduate Research Output Award from The Chinese University of Hong Kong; and the 2018 Research Excellence Award from the School of Information Science and Technology, ShanghaitehUniversity. He has supervised students and got Excellent Final Year Project (FYP) Supervisor from Tongji University and Third Award and Nominee Award in 2018 The First Innovation and Entrepreneurship Competition at ShanghaiTech University.


  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. 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.

  7. 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

  8. 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.

  9. 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.

  10. 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.

  11. 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.

  12. 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.

  13. 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.

  14. Junrui Liang and Wei-Hsin Liao, Energy flow in piezoelectric energy harvesting systems”, Smart Materials and Structures, vol. 20, no. 1, art. no. 01500511 pages, 2011.

  15. 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.