Project A – Electronic Circuits for Piezoelectric Energy Harvesting and Sensor Array Systems

Multiport and multimodal energy harvesting array systems require further circuit advancements. Wearables for health monitoring are an excellent energy harvesting example at raising interest. Further applications: smart city, building/bridge structure and environmental monitoring

Should be energy autonomous for easy handling, no charger, always ready to go for 24/7 use
SoA: Only single port harvesters! Require multiport harvesters for multiple asynchronous energy sources!
Multimodal harvesting (pressure, solar, thermal,…) and arrays increase availability of energy
Energy harvesting at high conversion efficiency needed
Provision of energy for: (i) local sensor acquisition, (ii) local data processing, and (iii) Wireless connectivity, WAN needs more energy than BAN
Wireless connectivity BAN (Body Area Network, e.g. Bluetooth) replaced by WAN (Wide Area Network, cellular IoT)

The primary research goal is the development of improved circuit design for multiport harvesters dealing with asynchronous energy sources in a piezo array

Can the piezo elements be simultaneously used as sensors and energy providers?
How to deal with asynchronous energy sources?
How to ensure high availability and stability of energy?
How to increase conversion efficiency?

Principal Investigators

	Prof. Dr. Georg Fischer Institute for Electronics Engineering Department of Electrical, Electronical, and Communication Engineering Friedrich-Alexander-Universität Erlangen-Nürnberg georg.fischer@fau.de
	Prof. Dr. Masashi Kato Electrical and Mechanical Engineering Department Nagoya Institute of Technology, Japan kato.masashi@nitech.ac.jp

Doctoral Researchers

Silmi Kaffah, M.Sc.
Institute for Electronics Engineering
Department of Electrical, Electronical, and Communication Engineering
Friedrich-Alexander-Universität Erlangen-Nürnberg

silmi.kaffah@fau.de

Associated Researchers

Prof. Dr. Dr. Jens Kirchner (FAU): jens.kirchner@fau.de

Publications Project A

2024

Anzai D., Kobayashi H., Hyry J., Kobayashi T., Kirchner J., Fischer G.:
Peak-Forming-Enhanced Electromagnetic Imaging Method for Implantable Device Localization
In: IEEE Access (2024)
ISSN: 2169-3536
DOI: 10.1109/ACCESS.2024.3504556
Gogoi N., Zhu Y., Kirchner J., Fischer G.:
Choice of Piezoelectric Element over Accelerometer for an Energy-Autonomous Shoe-Based System
In: Sensors 24 (2024), Art.Nr.: 2549
ISSN: 1424-8220
DOI: 10.3390/s24082549

2022

Gogoi N., Chen J., Fischer G., Kirchner J.:
Dependence of Piezoelectric Discs Electrical Impedance on Mechanical Loading Condition
In: Sensors (2022), S. 1710
ISSN: 1424-8220
DOI: 10.3390/s22051710
URL: https://www.mdpi.com/1424-8220/22/5/1710
Gogoi N., Kirchner J., Fischer G.:
Energy harvesting from a piezo buzzer with Schottky diode and complementary MOSFET full-bridge rectifiers
IEEE ISAF PFM ECAPD 2022 (Tours, France, 27. Juni 2022 - 1. Juli 2022)
In: 2022 IEEE International Symposium on Applications of Ferroelectrics (ISAF) 2022
DOI: 10.1109/ISAF51494.2022.9870144
URL: https://ieeexplore.ieee.org/document/9870144
Gogoi N., Kirchner J., Fischer G., Zhu Y.:
Simultaneous Step Counting and Energy Harvesting from Piezoelectric Discs Embedded in a Shoe
In: IEEE Sensors (2022), S. 1-4
ISSN: 2168-9229
DOI: 10.1109/SENSORS52175.2022.9967338

2021

Gogoi N., Fischer G., Kirchner J., Yu Z., Qin Y.:
Insole Gait Acquisition System Based on Wearable Sensors
In: Engineering Proceedings 10 (2021), S. 6
ISSN: 2673-4591
DOI: 10.3390/ecsa-8-11275
Haque I., Yoshibayashi K., Wang J., Fischer G., Kirchner J.:
Design and evaluation of directional antenna for shoe-mounted sensor for position identification of elderly wanderer
In: Sensing and Bio-Sensing Research 34 (2021), Art.Nr.: 100451
ISSN: 2214-1804
DOI: 10.1016/j.sbsr.2021.100451
URL: https://www.sciencedirect.com/science/article/pii/S2214180421000568
Haque I., Yoshibayashi K., Wang J., Fischer G., Kirchner J.:
Directive Antenna Design at 2.4 GHz on Foot Surface for Wanderer Location Identification
ISAP2020 International Symposium on Antennas and Propagation (Osaka, 25. Januar 2021 - 28. Januar 2021)
DOI: 10.23919/isap47053.2021.9391396

2020

Chen M., Wang J., Anzai D., Fischer G., Kirchner J.:
Common-Mode Noise Reduction in Noncontact Biopotential Acquisition Circuit Based on Imbalance Cancellation of Electrode-Body Impedance
In: Sensors (2020)
ISSN: 1424-8220
DOI: 10.3390/s20247140
URL: https://www.mdpi.com/1424-8220/20/24/7140/pdf