Pub Date : 2021-12-06DOI: 10.1109/PowerMEMS54003.2021.9658331
K. Cao, V. Boitier
A photovoltaic (PV) array having multiple cells in series with bypass diodes may exhibit multiple power peaks under uneven irradiation, therefore an algorithm is required to reach the global maximum power point (GMPP). While a lot of methods for GMPP tracking have been proposed in the literature, they are too complex for a system around 1–100W operating under partial shading and fast-varying irradiation conditions of around 100ms. This paper first highlights a rapid and efficient mathematical simulation of the PV array using MATLAB to find the probability distribution of GMPP under multiple irradiation conditions and different temperatures. The resulting GMPP distribution for an example of 4 PV macro cells with 4 bypass diodes in series is presented, both under the assumption of equal probability as well as a real-world operating condition. From the obtained result, we simulated a simple GMPPT algorithm capable of predicting which zone GMPP is located up to 96% of the time for both distributions.
{"title":"Probability distribution of GMPP under different irradiation and temperature conditions for GMPP tracking algorithm","authors":"K. Cao, V. Boitier","doi":"10.1109/PowerMEMS54003.2021.9658331","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658331","url":null,"abstract":"A photovoltaic (PV) array having multiple cells in series with bypass diodes may exhibit multiple power peaks under uneven irradiation, therefore an algorithm is required to reach the global maximum power point (GMPP). While a lot of methods for GMPP tracking have been proposed in the literature, they are too complex for a system around 1–100W operating under partial shading and fast-varying irradiation conditions of around 100ms. This paper first highlights a rapid and efficient mathematical simulation of the PV array using MATLAB to find the probability distribution of GMPP under multiple irradiation conditions and different temperatures. The resulting GMPP distribution for an example of 4 PV macro cells with 4 bypass diodes in series is presented, both under the assumption of equal probability as well as a real-world operating condition. From the obtained result, we simulated a simple GMPPT algorithm capable of predicting which zone GMPP is located up to 96% of the time for both distributions.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116880857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-06DOI: 10.1109/PowerMEMS54003.2021.9658382
Kumar Shrestha, P. Maharjan, T. Bhatta, Sudeep Sharma, Sang Hyun Lee, J. Park
Weather station is a prominent facility that monitors the environment and provides different weather information such as the atmospheric pressure, temperature, humidity, and air quality. However, in remote areas where electricity is not accessible, one of the significant challenges is to supply power to the weather station. To overcome this problem, a rotational Halbach array-based wind energy harvester is proposed which generates a high output power enough to drive individual functional units and IoT sensors for the realization of a self-powered weather station. The Halbach array magnet was utilized to guide the overall magnetic flux in a single direction, which increases the magnetic flux linkage and enhances the output performance of the harvester. The magnetic flux density of the Halbach array magnet increased four-fold compared to the conventional magnet while the miniaturized harvester delivered a high power density of 603.2 W/m3. Furthermore, MXene/Polyvinylfluoride-co-trifluoroethylene (PVDF-TrFE) was utilized as a negative triboelectric material for the determination of wind speed owing to its high electronegativity and sensitivity. Thus, this work can pave a path of research for the development of high-performance energy harvesters and self-powered IoT systems for practical use.
{"title":"A Rotational Wind Energy Harvester and Self-Powered Portable Weather Station","authors":"Kumar Shrestha, P. Maharjan, T. Bhatta, Sudeep Sharma, Sang Hyun Lee, J. Park","doi":"10.1109/PowerMEMS54003.2021.9658382","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658382","url":null,"abstract":"Weather station is a prominent facility that monitors the environment and provides different weather information such as the atmospheric pressure, temperature, humidity, and air quality. However, in remote areas where electricity is not accessible, one of the significant challenges is to supply power to the weather station. To overcome this problem, a rotational Halbach array-based wind energy harvester is proposed which generates a high output power enough to drive individual functional units and IoT sensors for the realization of a self-powered weather station. The Halbach array magnet was utilized to guide the overall magnetic flux in a single direction, which increases the magnetic flux linkage and enhances the output performance of the harvester. The magnetic flux density of the Halbach array magnet increased four-fold compared to the conventional magnet while the miniaturized harvester delivered a high power density of 603.2 W/m3. Furthermore, MXene/Polyvinylfluoride-co-trifluoroethylene (PVDF-TrFE) was utilized as a negative triboelectric material for the determination of wind speed owing to its high electronegativity and sensitivity. Thus, this work can pave a path of research for the development of high-performance energy harvesters and self-powered IoT systems for practical use.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"552 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123137717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-06DOI: 10.1109/PowerMEMS54003.2021.9658375
Adrian A. Rendon-Hernandez, M. A. Halim, S. E. Smith, D. Arnold
This paper presents a hybrid electromechanical transformer that passively transfers electrical power between galvanically isolated ports by coupling electrodynamic and piezoelectric transducers. The use of these two complementary electromechanical transduction methods along with a high-Q mechanical resonance affords very large transformations of voltage at particular electrical frequencies. A chip-size prototype is designed, simulated, fabricated and experimentally characterized. The 7.6 mm × 7.6 mm × 1.65 mm device achieves an open-circuit voltage gain of 31.4 and 48.7 when operating as a step-up transformer at 729.5 Hz and 1015 Hz resonance frequencies, respectively. In one operational mode, the system shows a minimum power dissipation of only 0.9 μW corresponding to a power conversion efficiency of 11.8%. A practical application of the hybrid transformer is demonstrated through an AC-DC step-up converter. When using a 1015 Hz input signal of only 209 mVrms and 2.4 mArms, the step-up converter outputs 5.3 VDC.
本文提出了一种混合机电变压器，通过耦合电动力和压电换能器在电隔离端口之间被动传输电能。使用这两种互补的机电转导方法以及高q机械共振，可以在特定的电频率下提供非常大的电压变换。设计、模拟、制作了一个芯片尺寸的原型机，并进行了实验表征。当作为升压变压器在729.5 Hz和1015 Hz谐振频率下工作时，7.6 mm × 7.6 mm × 1.65 mm器件的开路电压增益分别为31.4和48.7。在一种工作模式下，系统的最小功耗仅为0.9 μW，功率转换效率为11.8%。最后以交直流升压变换器为例说明了混合变压器的实际应用。当使用209mvrms和2.4 mArms的1015hz输入信号时，升压变换器输出5.3 VDC。
{"title":"High-Gain AC-DC Step-Up Converter Using Hybrid Piezo/Magnetic Electromechanical Transformer","authors":"Adrian A. Rendon-Hernandez, M. A. Halim, S. E. Smith, D. Arnold","doi":"10.1109/PowerMEMS54003.2021.9658375","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658375","url":null,"abstract":"This paper presents a hybrid electromechanical transformer that passively transfers electrical power between galvanically isolated ports by coupling electrodynamic and piezoelectric transducers. The use of these two complementary electromechanical transduction methods along with a high-Q mechanical resonance affords very large transformations of voltage at particular electrical frequencies. A chip-size prototype is designed, simulated, fabricated and experimentally characterized. The 7.6 mm × 7.6 mm × 1.65 mm device achieves an open-circuit voltage gain of 31.4 and 48.7 when operating as a step-up transformer at 729.5 Hz and 1015 Hz resonance frequencies, respectively. In one operational mode, the system shows a minimum power dissipation of only 0.9 μW corresponding to a power conversion efficiency of 11.8%. A practical application of the hybrid transformer is demonstrated through an AC-DC step-up converter. When using a 1015 Hz input signal of only 209 mVrms and 2.4 mArms, the step-up converter outputs 5.3 VDC.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122892034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-06DOI: 10.1109/PowerMEMS54003.2021.9658408
Xiaoli Tang, M. Longden, Yu Shi, Boyue Chen, Rabiya Farooq, Harry Lees, Yu Jia
Misalignment of vehicle wheels, especially for those heavy good vehicles (HGVs), will lead to rapid irregular wear on both tires and roads, which is extremely harmful to safe operation, human health and the environment. The traditional wheel alignment techniques mainly focus on wheel alignment inspection and adjustment at the maintenance center. However, as the uncertainty of external influence factors, the degree of wear caused by misalignment cannot be estimated. Therefore, we designed a low-power wireless wheel alignment monitoring system to monitor the wheel alignment condition in real time and long time and remind the customers to perform maintenance timely. For applications in specific scenarios and extension of battery service life, a dual wake-up strategy was proposed to wake the processor from a deep sleep state. The current of the designed system is low to 9.13μA when the processor sleeps, but a real-time clock (RTC) is enabled. A 1000mAh battery with a nominal voltage of 3.7V can work for nearly 5 years if the data is collected twice a day with the proposed dual wake-up strategy. Importantly, with the assistance of energy harvesting, it has the potential to realize a fully autonomous condition monitoring system in the future.
{"title":"Towards Power Neutral Wireless Sensors: a Real-Time Wheel Alignment Monitoring System","authors":"Xiaoli Tang, M. Longden, Yu Shi, Boyue Chen, Rabiya Farooq, Harry Lees, Yu Jia","doi":"10.1109/PowerMEMS54003.2021.9658408","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658408","url":null,"abstract":"Misalignment of vehicle wheels, especially for those heavy good vehicles (HGVs), will lead to rapid irregular wear on both tires and roads, which is extremely harmful to safe operation, human health and the environment. The traditional wheel alignment techniques mainly focus on wheel alignment inspection and adjustment at the maintenance center. However, as the uncertainty of external influence factors, the degree of wear caused by misalignment cannot be estimated. Therefore, we designed a low-power wireless wheel alignment monitoring system to monitor the wheel alignment condition in real time and long time and remind the customers to perform maintenance timely. For applications in specific scenarios and extension of battery service life, a dual wake-up strategy was proposed to wake the processor from a deep sleep state. The current of the designed system is low to 9.13μA when the processor sleeps, but a real-time clock (RTC) is enabled. A 1000mAh battery with a nominal voltage of 3.7V can work for nearly 5 years if the data is collected twice a day with the proposed dual wake-up strategy. Importantly, with the assistance of energy harvesting, it has the potential to realize a fully autonomous condition monitoring system in the future.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"46 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130122203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-06DOI: 10.1109/PowerMEMS54003.2021.9658399
Khalifa Aliyu Ibrahim, Minkyung Kim, Daniel Kinuthia, Z. Hussaini, Fergus Crawley, Zhenhua Luo
In facing major challenges of climate change, hydrogen is a clean-energy solution representing an important aspect of the transition to renewable energies. However, currently majority of hydrogen is produced from fossil fuels (‘brown hydrogen’), whereas green hydrogen is produced from renewable energy, so as the potential to provide clean energy. This article presents a design of solar green hydrogen production system and the simulation of its CPV (concentrated photovoltaic) output. To achieve cost-efficient green hydrogen production, we focus on improving efficiencies in two aspects, i.e., solar energy capture and electricity conversion. Firstly, to enhance the efficiency of focusing the sunlight, we use bi-axial concentrating solar optics combined with high-efficiency multijunction solar cells. Secondly, for the electricity conversion, use direct coupling between PEM (Polymer Electrolyser Membrane) electrolyser and PV system.
{"title":"High Performance Green Hydrogen Generation System","authors":"Khalifa Aliyu Ibrahim, Minkyung Kim, Daniel Kinuthia, Z. Hussaini, Fergus Crawley, Zhenhua Luo","doi":"10.1109/PowerMEMS54003.2021.9658399","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658399","url":null,"abstract":"In facing major challenges of climate change, hydrogen is a clean-energy solution representing an important aspect of the transition to renewable energies. However, currently majority of hydrogen is produced from fossil fuels (‘brown hydrogen’), whereas green hydrogen is produced from renewable energy, so as the potential to provide clean energy. This article presents a design of solar green hydrogen production system and the simulation of its CPV (concentrated photovoltaic) output. To achieve cost-efficient green hydrogen production, we focus on improving efficiencies in two aspects, i.e., solar energy capture and electricity conversion. Firstly, to enhance the efficiency of focusing the sunlight, we use bi-axial concentrating solar optics combined with high-efficiency multijunction solar cells. Secondly, for the electricity conversion, use direct coupling between PEM (Polymer Electrolyser Membrane) electrolyser and PV system.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"128 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126277425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-06DOI: 10.1109/PowerMEMS54003.2021.9658328
Bingmeng Hu, Y. Guo, X. Wang
We present an advanced on-chip lithium-ion microcapacitor with the 3D interdigital activated carbon cathode and the novel-designed TiO2-based anode for the first time. The well-dispersed TiO2 nanoparticles provide fast pathways for ion diffusion and a large surface area for the reaction, enhancing the power density. The TiO2 nanoparticles are distributed in the cross-linked network of Ti3C2 (one of 2D transition metal carbides) and disordered carbon (DC), which provide conductive channels to improve electrode dynamics and enhance cyclability. The one-step oxidation by hydrothermal method neither needs a relatively high temperature nor extra titanium source. Moreover, the micro 3D interdigital electrodes maintain a short transmission distance of ions between electrodes to achieve the ultrahigh power density and enlarge the capacitance by increasing the amount of material with the heightened electrodes. It exhibits a superior capacitance of 12.7 mF cm−2 and excellent cycling stability of 70% retention after 200 cycles. Furthermore, the device prepared by microfabrication technology could be compatible and integrated with the on-chip applications in MEMS devices and portable electronics, showing great advantages compared with traditional electrolytic capacitors.
{"title":"A High-Performance Micro Lithium-Ion Capacitor with 3D Interdigital Electrodes for On-Chip Energy Storage","authors":"Bingmeng Hu, Y. Guo, X. Wang","doi":"10.1109/PowerMEMS54003.2021.9658328","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658328","url":null,"abstract":"We present an advanced on-chip lithium-ion microcapacitor with the 3D interdigital activated carbon cathode and the novel-designed TiO2-based anode for the first time. The well-dispersed TiO2 nanoparticles provide fast pathways for ion diffusion and a large surface area for the reaction, enhancing the power density. The TiO2 nanoparticles are distributed in the cross-linked network of Ti3C2 (one of 2D transition metal carbides) and disordered carbon (DC), which provide conductive channels to improve electrode dynamics and enhance cyclability. The one-step oxidation by hydrothermal method neither needs a relatively high temperature nor extra titanium source. Moreover, the micro 3D interdigital electrodes maintain a short transmission distance of ions between electrodes to achieve the ultrahigh power density and enlarge the capacitance by increasing the amount of material with the heightened electrodes. It exhibits a superior capacitance of 12.7 mF cm−2 and excellent cycling stability of 70% retention after 200 cycles. Furthermore, the device prepared by microfabrication technology could be compatible and integrated with the on-chip applications in MEMS devices and portable electronics, showing great advantages compared with traditional electrolytic capacitors.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126439907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-06DOI: 10.1109/PowerMEMS54003.2021.9658404
Mingming Zhang, Junjie Shi, S. Beeby
Most previous work regarding to Polydimethylsiloxane (PDMS) ferroelectret was fabricated with controlled void layouts rather than the random voids. This paper illustrates a new way for obtaining Polydimethylsiloxane (PDMS) ferroelectret with random voids by using the bubbles created by reaction between liquid PDMS and curing agent. A mathematic model is illustrated to explore the connection between structure and piezoelectricity. The fabricating process is present and related test is measured. The piezoelectric coefficient d33 of this PDMS ferroelectret is about 206 pC/N. The maximal peak voltages measured for this PDMS ferroelectret was about 4 V under the force of 300N.
{"title":"A new approach for obtaining PDMS ferroelectrets with random voids","authors":"Mingming Zhang, Junjie Shi, S. Beeby","doi":"10.1109/PowerMEMS54003.2021.9658404","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658404","url":null,"abstract":"Most previous work regarding to Polydimethylsiloxane (PDMS) ferroelectret was fabricated with controlled void layouts rather than the random voids. This paper illustrates a new way for obtaining Polydimethylsiloxane (PDMS) ferroelectret with random voids by using the bubbles created by reaction between liquid PDMS and curing agent. A mathematic model is illustrated to explore the connection between structure and piezoelectricity. The fabricating process is present and related test is measured. The piezoelectric coefficient d33 of this PDMS ferroelectret is about 206 pC/N. The maximal peak voltages measured for this PDMS ferroelectret was about 4 V under the force of 300N.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"139 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116045032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A large number of widely distributed sensor networks pose a major challenge to distributed energy. Traditional batteries are not environmentally friendly and also cause additional time and economic costs. Generators that harvest environmental vibration energy have become a potential solution. In this paper, a novel contact-separation mode electret generator supported by magnets is proposed for vibration energy collection. Under low frequency vibration (15 Hz), the maximum output open-circuit voltage is 300 V, and the maximum instantaneous output power of 0.725 mW is achieved under the optimal load resistance of 20 MΩ. Finally, we provide directions for further improvement and optimization of the design.
{"title":"Contact-Separation Mode Electret Generator Supported by Magnets","authors":"Shuangshuang Yang, Yao Chu, Kangkang Dong, Ruixing Han, Xuanchen Tian, Fei Tang","doi":"10.1109/PowerMEMS54003.2021.9658396","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658396","url":null,"abstract":"A large number of widely distributed sensor networks pose a major challenge to distributed energy. Traditional batteries are not environmentally friendly and also cause additional time and economic costs. Generators that harvest environmental vibration energy have become a potential solution. In this paper, a novel contact-separation mode electret generator supported by magnets is proposed for vibration energy collection. Under low frequency vibration (15 Hz), the maximum output open-circuit voltage is 300 V, and the maximum instantaneous output power of 0.725 mW is achieved under the optimal load resistance of 20 MΩ. Finally, we provide directions for further improvement and optimization of the design.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128346995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-06DOI: 10.1109/PowerMEMS54003.2021.9658363
Florent Sèvely, Tao Wu, S. Pelloquin, L. Seguier, F. Mesnilgrente, Carole Rossi
We developed an Ultimate Security Device (USD) that can, in case of intrusion or external attack, blow up a safety-critical component such as memory device. The device consists of two active parts (1) a pyroMEMS ignites in a fraction of millisecond (2) a mass of reactive composite, both encapsulated into a printed hermetic cap and placed over the sensitive component to be protected. After the presentation of the design and integration of the USD, we demonstrated that 400 mg of reactive composite permits to irreversibly destroy the silicon chips (~118 mm3) in less than 10 ms. This ultimate security device provides a speedy and automatic response and can be programmed for tunable actions (generation of pressure burst, heat, chemical species) to implement relevant emergency safety responses.
{"title":"Development of a Chip-Level Ultimate Security Device Using Reactive Composites","authors":"Florent Sèvely, Tao Wu, S. Pelloquin, L. Seguier, F. Mesnilgrente, Carole Rossi","doi":"10.1109/PowerMEMS54003.2021.9658363","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658363","url":null,"abstract":"We developed an Ultimate Security Device (USD) that can, in case of intrusion or external attack, blow up a safety-critical component such as memory device. The device consists of two active parts (1) a pyroMEMS ignites in a fraction of millisecond (2) a mass of reactive composite, both encapsulated into a printed hermetic cap and placed over the sensitive component to be protected. After the presentation of the design and integration of the USD, we demonstrated that 400 mg of reactive composite permits to irreversibly destroy the silicon chips (~118 mm3) in less than 10 ms. This ultimate security device provides a speedy and automatic response and can be programmed for tunable actions (generation of pressure burst, heat, chemical species) to implement relevant emergency safety responses.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134146762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-06DOI: 10.1109/PowerMEMS54003.2021.9658332
A. Ameye, N. Garraud, P. Gasnier, D. Gibus, A. Badel
In this paper, we report a hybrid low-frequency near-field electrodynamic wireless power transfer (EWPT) system. The power receiver is designed as a vibrating cantilever, with two mechanical-to-electrical transducers: a piezoelectric transducer and an electrodynamic transducer. The use of a hybrid system increases the converted power for the same mechanical system when the quality factor is reduced under high oscillation. We propose an analytical model, combined with admittance measurements, to determine the physical parameters of the system. This model allows a good prediction of the performance (efficiency, resonance frequency and output power) as a function of the input power and the resistive loads connected to the two transducers of the transmitter.
{"title":"Highly coupled hybrid transduction for low-frequency electrodynamic wireless power transfer","authors":"A. Ameye, N. Garraud, P. Gasnier, D. Gibus, A. Badel","doi":"10.1109/PowerMEMS54003.2021.9658332","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658332","url":null,"abstract":"In this paper, we report a hybrid low-frequency near-field electrodynamic wireless power transfer (EWPT) system. The power receiver is designed as a vibrating cantilever, with two mechanical-to-electrical transducers: a piezoelectric transducer and an electrodynamic transducer. The use of a hybrid system increases the converted power for the same mechanical system when the quality factor is reduced under high oscillation. We propose an analytical model, combined with admittance measurements, to determine the physical parameters of the system. This model allows a good prediction of the performance (efficiency, resonance frequency and output power) as a function of the input power and the resistive loads connected to the two transducers of the transmitter.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131121753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：