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Schilder, Patrick (author)The Internet of Things (IoT) is expected to include billions of tiny devices that collect, process, and communicate sensory data. As of now, batteries power these devices. Batteries, however, are large, expensive, and short-lived - even the rechargeable ones wear out in a few years. Therefore, they are not a sustainable powering solution. Tiny...master thesis 2019
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Stuber, V.L. (author), Deutz, Daniella B. (author), Bennett, James (author), Cannel, David (author), de Leeuw, D.M. (author), van der Zwaag, S. (author), Groen, W.A. (author)Vibrational piezoelectric energy harvesters are being investigated to replace batteries in embedded sensor systems. The energy density that can be harvested depends on the figure of merit, d<sub>33</sub>g<sub>33</sub>, where d<sub>33</sub> and g<sub>33</sub> are the piezoelectric charge and voltage coefficient. Commonly used piezoelectric...journal article 2019
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Blad, Thijs (author), Tolou, N. (author)Although motion energy harvesting at the small scales has been a research topic for over 20 years, the implementation of such generators remains limited in practice. One of the most important contributing factors here is the poor performance of these devices under low-frequency excitation. In this research, a new metric is proposed to...journal article 2019
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Delle Donne, Carlo (author)Batteryless network nodes could enable unprecedented ubiquitous sensing applications, while gathering energy from the environment and hence removing maintenance costs for batteries. However, these devices inherently suffer frequent power failures and reboots, due to the volatility of the incoming energy, thus classical synchronous message...master thesis 2018
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Patoukas, Dimitris (author)Energy harvesting and battery-free sensing devices show great promise for revolutionizing computing in every known area while expanding to non-conventional use-cases. The promise of cheap, dense, and ubiquitous sensing technology brings new applications for the Internet of Things. However, the future programming model is blurry and complex. With...master thesis 2018
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Haridas, Anand (author)For the Internet of Things (IoT) applications that send a few bytes of sensor information infrequently, several long-range IoT technologies have been conceived. Narrowband IoT (NB-IoT) is one of them that stands out due to its extended coverage, high penetrability, and high reliability features. Envisaged<br/>long device lifetime and the...master thesis 2018
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Meekes, Bauke (author), Waegenaere, Victor (author)This report discusses one part of a project consisting of three parts. The goal of the project is to design a battery less sensor powered by RF energy fields present in an office environment. The sensor is able to measure the temperature and is able to communicate wirelessly using a low power communication protocol. In this project the use case...bachelor thesis 2018
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Kappelle, Daniël (author), Bronkhorst, Erné (author)This report discusses one part of a project consisting of three parts. The goal of the project is to design a battery less sensor powered by RF energy fields present in an office environment. The sensor is able to measure temperature and is able to communicate wirelessly using a low power communication protocol. In this project the use case of a...bachelor thesis 2018
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Thiruvelselvam, Senthil Kumar (author)Batteries are vital sources in many wireless embedded systems applications like the Tire Pressure Management System (TPMS) in the automobile industry. Also, the growth of electric cars will result in an increasing demand for batteries. Although batteries do not directly pollute the environment during their active life, the production phase and...master thesis 2018
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Mittal, Abhishek (author)Piezoelectric materials have found application in wide range of devices from accelerometers to energy harvesters. They have proven their potential and versatility in aerospace, automotive, electronics and biomedical industry. Piezoelectric ceramics are not suitable for energy harvesting applications due to its brittleness and low strain levels,...master thesis 2018
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Zabihi, Ehsan (author)This thesis tries to match the rectifier block of an RF energy harvester to a specific frequency. This specific frequency has the most power and is searched and selected by a smart algorithm. <br/>The algorithm tunes a varactor by applying a proper voltage to set it on different channels.<br/>Then the best channel is sampled and compared with...master thesis 2018
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Shekhar, A. (author), Kumaravel, Vinod Kumar (author), Klerks, Stan (author), de Wit, Sten (author), Prasanth, V. (author), Narayan, N.S. (author), Bauer, P. (author), Isabella, O. (author), Zeman, M. (author)Solar road technology provides an opportunity to harvest the vast, albeit dispersed, photovoltaic (PV) energy, while maximizing the land utilization. Deriving experience from the pioneering 70-m solar bike path installed in the Netherlands, this paper highlights the operational challenges and performance parameters using the first-year...journal article 2018
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Dezyani, M. (author), Ghafoorifard, Hassan (author), Sheikhaei, Samad (author), Serdijn, W.A. (author)This paper presents a 60 mV input voltage start-up system for thermoelectric energy harvesting. A new process tolerant inverter cell is proposed, which is functional at supply voltages as low as 60 mV. Using the proposed unit cell, a ring <br/>oscillator has been implemented. The ring oscillator is followed by 40 charge-pump stages, an ultra...journal article 2018
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Gao, Mingyuan (author), Li, Yunwu (author), Lu, Jun (author), Wang, Yifeng (author), Wang, Ping (author), Wang, L. (author)The goal of this study is to develop a vibration-based electromagnetic energy harvesting prototype that provides power to rail-side monitoring equipment and sensors by collecting wheel-rail vibration energy when the train travels. This technology helps power rail–side equipment in off-grid and remote areas. This article introduces the...journal article 2018
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Blad, Thijs (author)Vibration Energy Harvesting has the potential to become a convenient, sustainable and localized power source for the billions of small electronic devices of the future. One of the most challenging areas within this field is the design of miniaturized generators for power harvesting from human motion. In this thesis, a new strategy, design and...master thesis 2017
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Rao, V.S. (author)The Internet of Things (IoT) is one of the disruptive technologies in today’s connected world. The idea is to connect every thing to the Internet. IoT holds the key to many current and future technologies that will significantly influence the quality and sustainability of life. The vision of IoT is to enable large scalemonitoring and/or control...doctoral thesis 2017
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Campos Martins, G. (author), Serdijn, W.A. (author)The continuous improvement in reducing the power consumption of electronic devices, including biomedical ones, makes the use of energy harvesting systems instead of batteries attractive. Conventionally, energy harvesting systems are optimized to operate in a single worst-case scenario. However, it is often the case that the available input power...conference paper 2017
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- Bernhammer, L.O. (author), Navalkar, S.T. (author), Sodja, J. (author), De Breuker, R. (author), Karpel, M (author) journal article 2017
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Deutz, D.B. (author), Mascarenhas, N.T. (author), Schelen, J.B.J. (author), de Leeuw, D.M. (author), van der Zwaag, S. (author), Groen, W.A. (author)A highly sensitive, lead-free, and flexible piezoelectric touch sensor is reported based on composite films of alkaline niobate K<sub>0.485</sub>Na<sub>0.485</sub>Li<sub>0.03</sub>NbO<sub>3</sub> (KNLN) powders aligned in a polydimethylsiloxane (PDMS) matrix. KNLN powder is fabricated by solid-state sintering and consists of microcubes. The...journal article 2017
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Stoopman, M. (author), Philips, Kathleen (author), Serdijn, W.A. (author)This paper presents the system and circuit design of a compact radio frequency (RF)-powered 2.4-GHz CMOS transmitter (TX) to be used for autonomous wireless sensor nodes (WSNs). The proposed TX utilizes the received dedicated RF signal for both energy harvesting as well as frequency synthesis. A TX RF carrier is derived from the received RF...journal article 2017