Journal articles: 'Portable power supply'

1

Ramly, Nur Hafeizza. "Emergencey Portable Solar Power Supply." International Journal of Engineering Technology and Sciences 6, no. 2 (March 7, 2020): 76–85. http://dx.doi.org/10.15282/ijets.v6i2.1914.

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Emergency Portable Solar Power Supply is a product which uses renewable energy sources as the main sources of electricity which is sunlight. According to World Energy Outlook (WEO) 2018, the percentage of renewable energy used as a source to generate electricity grew by 17% higher than the 10-year average and solar energy contributed more than a third despite accounting for just 21% of the total. The main objective of this product is to create clean energy emergency portable solar power supply by using non-conventional energy source and green technology which can be used during any contingency happens and also for the usage for rural area with non-electric power source. This project was started by calculation of the system design for determining the characteristic that need to be used for all components that related to this solar system such as battery, charge controller, solar panel and etc. The overall system of this portable solar power supply is 12V system. This design can last for 2 days without charging and the minimum hour for the battery to be charged is around 6 hours. This product can supply maximum up to 100W of DC and AC power supply. In a conclusion, this product is very portable and greener product the usage of solar energy as the main sources to generate electricity.

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K, Kranthikumar. "Portable and Inventive Electrical Power Supply." International Innovative Research Journal of Engineering and Technology 4, no. 3 (March 30, 2019): 9–12. http://dx.doi.org/10.32595/iirjet.org/v4i3.2019.81.

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Wang, Yi Wang, Jun Lu, Xin Xiang Zhang, and Zhong Xian Li. "Design and Development of a Portable Solar Photovoltaic Mobile Emergency Power Supply." Advanced Materials Research 953-954 (June 2014): 99–102. http://dx.doi.org/10.4028/www.scientific.net/amr.953-954.99.

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With the increase of electrical equipment, people's lives become increasingly dependent on electricity. In case of power interruption, people need to use emergency power supply.A portable solar photovoltaic mobile emergency power supply is designed in this paper,which uses embedded solar panels to provide power energy, and fitted with other complementary power input.The designed portable solar photovoltaic mobile emergency power supply provides optional DC12V/5V and AC220V output to meet the application requirements on different occasions.Through experimental tests on designed power supply prototype, the results indicated the power supply has good performance in all aspects.The designed and developed portable solar photovoltaic mobile emergency power supply has characteristics of energy saving, full-featured, high practicability and wide application [1-5].

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Tarasenko, Alexey Borisovich, Yaroslav Andreevich Menshikov, Musi Zhamaluttinovich Suleymanov, and Sofya Valentinovna Kiseleva. "Portable photovoltaic power supply for low temperature applications." Arctic: Ecology and Economy, no. 2(38) (June 2020): 134–43. http://dx.doi.org/10.25283/2223-4594-2020-2-134-143.

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Azhari Zakri, Azriyenni, Almasdi Syahza, Dirman Hanafi, and Hanggun Syahadat. "Portable power supply design with 100 Watt capacity." INVOTEK: Jurnal Inovasi Vokasional dan Teknologi 21, no. 2 (July 14, 2021): 131–38. http://dx.doi.org/10.24036/invotek.v21i2.901.

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Renewable energy from solar cells is a type of alternative energy for consumers, especially those far from electricity, and saves electrical energy. This research developed an innovative tool for portable solar power generators as a source of energy, which stores electrical energy in two ways, namely solar cells and transformers. Furthermore, this research is expected to improve innovation tools for more efficient electricity supply and energy use, especially for rural communities. It also uses a variety of battery capacities to test portable power supplies. The results showed that the power supply using 100 Wp solar cells produced a capacity of 20 Ah, 60 Ah, and 100 Ah on the battery. Charging with a solar energy source on a 20 Ah battery takes a duration of 5 hours to be fully charged, while 60 Ah and 100 Ah batteries cannot be fully charged in one day. Charging a battery that has been run at a full level takes a duration of 15 hours at a temperature of 30oC to 34oC. Finally, this tool is expected to add variety to locally manufactured products.

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Barchesi, C., R. Generosi, and M. Rinaldi. "A portable power supply for sputter-ion pumps." Vacuum 44, no. 8 (August 1993): 815–17. http://dx.doi.org/10.1016/0042-207x(93)90313-y.

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Cheng, Wei. "The Research of the Power Supply System of Embedded Portable Devices." Applied Mechanics and Materials 127 (October 2011): 496–500. http://dx.doi.org/10.4028/www.scientific.net/amm.127.496.

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Portable devices are mostly powered by battery. With the products tending to the direction of light, thin, short and multi-functional integration, the power requirements of portable devices are increasing all the time, but the energy density of battery is far behind the speed, the improvement of performance relies heavily on the power management technology. Therefore, it’s needed that manage the power of whole system with the integrated viewpoint to reduce power consumption and extend the system work time. After the analysis and research for power management technologies, one kind of a combination of hardware and software power management solution is proposed. The power management IC with embedded Linux operating system's Dynamic Power Management technology, better to reduce system power consumption, meets the requirements of the power system supplied by portable equipment.

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Zhao, Xiaowen, Bin Yang, Yan Li, Gang Li, Haixia Yan, and Peng Wu. "The high voltage supply power of portable nuclear instrument." Journal of Physics: Conference Series 1651 (November 2020): 012119. http://dx.doi.org/10.1088/1742-6596/1651/1/012119.

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Wang, Kuantian, Peng Li, and Mengxia Luo. "Design of portable multi-channel isolated CNC-regulated power supply." Journal of Physics: Conference Series 2450, no. 1 (March 1, 2023): 012038. http://dx.doi.org/10.1088/1742-6596/2450/1/012038.

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Abstract In order to facilitate the testing needs of electronic engineers, a multi-channel isolation adjustable switching regulated power supply controlled by an STM32 single-chip microcomputer is designed [1]. The power supply is programmable and adjustable by a single-chip microcomputer, and the humanized display operation interface is combined with the high efficiency of switching the power supply. It can realize three channels of 30v2a isolated output, and realize one channel of 90v2a or 30v6a output through a relay automatic switching series-parallel combination, to maximize power density. The power supply has the characteristics of high integration, small volume, large power, large adjustable range, high precision, and high efficiency. It can be applied to the debugging and operation of most electronic equipment.

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Ma, Shao Jun. "Design of Sustainable Energy Supply for Mechanical Exoskeleton Based on Fuel Cell." Applied Mechanics and Materials 312 (February 2013): 749–52. http://dx.doi.org/10.4028/www.scientific.net/amm.312.749.

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In this article, it takes the small power mechanical exoskeleton with fuel cells as the main application target. Based on different two hydrogen supply methods, high-pressure hydrogen cylinders and portable metal hydride hydrogen cylinders, the box structure and shape design of small power PEMFC is made. It cannot only provide power as a independent component using high-pressure hydrogen cylinders supply gas equipment, but also as transportation power or portable equipment by installing rapidly metal hydride hydrogen storage cylinders, which realized the use of reliability, flexibility and convenience for mechanical exoskeleton.

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Fraas, Lewis, James Avery, Leonid Minkin, Han Xiang Huang, and Parvez Uppal. "Portable Concentrated Sunlight Power Supply Using 40% Efficient Solar Cells." IEEE Journal of Photovoltaics 1, no. 2 (October 2011): 236–41. http://dx.doi.org/10.1109/jphotov.2011.2172576.

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Zang, Yu Fang, Hua Zhang, Shi Lin Xu, Zi Long Wang, and Tian Hui Zhang. "Design of a Portable Solar Photovoltaic-Driven Refrigerator." Advanced Materials Research 383-390 (November 2011): 6066–70. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.6066.

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According to the characteristic of solar photovoltaic, this paper designed an electric supply mode, combined with the solar photovoltaic system, the storage battery and the public power supply, to drive a portable refrigerator which could use outdoor. The refrigerator is installed two individual refrigeration systems with two special arranged evaporators and wind route for storing beverages under the sunlight. Besides, the refrigerator electricity supply has three ways including utilizing solar energy with sun shining, taking advantage of the storage battery in night time and making use of the public power while the sunlight is unavailable. Various tests are carried out to examine the performance of the system. The voltages and currents which are generated by the solar cell and monitored on refrigerator have been studied. In addition, an analysis in power consumption of the system is realized. The results indicated that the refrigerator could run normally and indeed satisfy the request in beverage cooling and storage.

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Gunawardane, Kosala, Nisitha Padmawansa, Nihal Kularatna, Kasun Subasinghage, and Tek Tjing Lie. "Current Context and Research Trends in Linear DC–DC Converters." Applied Sciences 12, no. 9 (May 1, 2022): 4594. http://dx.doi.org/10.3390/app12094594.

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With the introduction of switch-mode power supplies (SMPS) in the mid-1970s, the efficiency of DC–DC conversion rose from 60 to 80% and SMPS became a popular power supply solution. However, linear regulators have not become obsolete. The modern power management system in portable devices supports a complex mix of DC–DC converters, combining switch-mode power supplies (SMPS), switched capacitor converters (SCCs), and linear regulators in the form of low-dropout regulators (LDOs). LDOs are used to supply low-voltage DC power rails with very low noise and high current slew rate capability, which are usually fed by the output rail of SMPS. This paper provides a comprehensive review of the evolution of the application scope of linear-type DC–DC converters in the power supply context and the present research trends. First, we review the context of linear DC–DC converters in detail, particularly in portable device power supplies. Then, the details of LDO regulators and their recent industry development and research trends are discussed. Then, the discussion focuses on supercapacitor-assisted low-dropout (SCALDO) regulator design and its scope in the portable device power management together with SCALDO-based dual output and reduced switch designs, and finally, the conclusions follow.

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Park, Jooyoung, Gyo-Bum Chung, Jungdong Lim, and Dongsu Yang. "Dynamic Power Management for Portable Hybrid Power-Supply Systems Utilizing Approximate Dynamic Programming." Energies 8, no. 6 (May 29, 2015): 5053–73. http://dx.doi.org/10.3390/en8065053.

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15

Lee, Dong-Geun, and Rae-Young Kim. "Design and Control of Ultra-High-Speed Sensorless Drive with Two-Input Power Source for Portable Consumer Electronics." Electronics 11, no. 7 (March 24, 2022): 1024. http://dx.doi.org/10.3390/electronics11071024.

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The convenience and usability of portable consumer electronics that require a motor, such as vacuum cleaners and hair dryers, will be greatly improved if both ac and dc two-input power sources can be used. The dc input power is mostly composed of a dc battery, and single-phase voltage is used as ac input power. A converter system capable of converting ac and dc voltage with control technology is required to supply the voltage for motor driving to apply both ac and dc input to the product. Because a limited number of batteries are used to decrease the weight and size of portable products, a system such as a dc converter is necessary to supply the voltage required to operate the motor and to keep the voltage fluctuation according to the usage time constant. When ac power is used in the product, a voltage drop system that can step down the ac voltage to supply voltage to the dc link is necessary to supply the voltage required to operate the motor to the dc-link. In addition, it is important to reduce the size of the system through ultra-high-speed motor operation by increasing the rotation speed because portable consumer electronics that include a motor drive should be light and portable. This paper proposed a system that can supply a stable dc-link voltage required for ultra-high-speed motor control by applying a phase control method to the ac input side and a dc boost converter to the dc input side. Furthermore, the 1-shunt sensorless method was applied to the inverter for ultra-high-speed motor design and ultra-high-speed motor control system that contributes to product miniaturization and material cost reduction, experimental verification. The ultra-high-speed motor driving evaluation under ac and dc input power conditions and the conversion to dc power input when ac power interrupt occurs were performed to more stably verify the system according to the input power change.

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Rąbkowski, Jacek, Andrzej Łasica, Mariusz Zdanowski, Grzegorz Wrona, and Jacek Starzyński. "Portable DC Supply Based on SiC Power Devices for High-Voltage Marx Generator." Electronics 10, no. 3 (January 28, 2021): 313. http://dx.doi.org/10.3390/electronics10030313.

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The paper describes major issues related to the design of a portable SiC-based DC supply developed for evaluation of a high-voltage Marx generator. This generator is developed to be a part of an electromagnetic cannon providing very high voltage and current pulses aiming at the destruction of electronics equipment in a specific area. The portable DC supply offers a very high voltage gain: input voltage is 24 V, while the generator requires supply voltages up to 50 kV. Thus, the system contains two stages designed on the basis of SiC power devices operating with frequencies up to 100 kHz. At first, the input voltage is boosted up to 400 V by a non-isolated double-boost converter, and then a resonant DC-DC converter with a special transformer elevates the voltage to the required level. In the paper, the main components of the laboratory setup are presented, and experimental results of the DC supply and whole system are also shown.

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Erickson, David, David Sinton, and Dongqing Li. "A miniaturized high-voltage integrated power supply for portable microfluidic applications." Lab on a Chip 4, no. 2 (2004): 87. http://dx.doi.org/10.1039/b316916b.

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Wei-hua, Xu, Wolfgang Foerster, and Guenter Mueller. "A Universal Portable Appliance for Stellarator W7-X Power Supply Controlling." Plasma Science and Technology 3, no. 3 (June 2001): 781–90. http://dx.doi.org/10.1088/1009-0630/3/3/005.

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19

Kanai, Yasuyuki, Masato Mino, and Tatsuo Sakai. "143 Characteristics of portable power supply system powered by solar cells." Proceedings of the Conference on Information, Intelligence and Precision Equipment : IIP 2001 (2001): 123–25. http://dx.doi.org/10.1299/jsmeiip.2001.123.

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20

Mwanyasi, Gustave M., and Marco Adonis. "A PV power supply module for a portable Cubesat satellite ground station." Journal of Energy in Southern Africa 25, no. 2 (June 23, 2014): 28–38. http://dx.doi.org/10.17159/2413-3051/2014/v25i2a2666.

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This research focuses on the problem of powering a remote and mobile satellite ground station, where utility power is unavailable. It focuses on the use of photovoltaic energy, which is now widely accepted as an alternative source of energy. However, PV suffers from low conversion efficiency, non-linear I-V characteristics, which depend on temperature changes and the earth rotation. The research focuses on accurate determination of the ground station power budget whose total power demand involves an azimuth and rotator function and a current which varies depending on the stages of communication with the satellite. The power budget is used to determine the size, the ratings of solar generators, batteries and the system components. With the aid of a power logger, the PV voltage, the battery voltage, the AC voltage and PV power output is analysed for varying satellite loads. The data is analysed by taking into account the solar irradiation level on the day of measurement and the percentage cloud cover. This method is found to improve the reliability and can be adopted to improve reliability of standalone PV systems. The results are vital in PV power management and design.

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Han, Chun Juan, and Fa Cheng Rui. "Research on Applied Technology in Modeling Buck Switching Converter." Advanced Materials Research 886 (January 2014): 501–4. http://dx.doi.org/10.4028/www.scientific.net/amr.886.501.

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Now integrated PWM switching power supply has been used widely in the fields, like communication, computer, etc. In order to meet performance requirements of r portable electronic products for power, switching power supply must be developed mainly aimed at high efficiency, high-precision and small size. Combing a typical Buck converter, this paper uses state-space averaging method to establish a small signal model of the whole system.

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Chen, Xiyou, Zhe Wang, Zhengying Lang, Tao Li, and Chen Qi. "Research on Desktop Wide Range Wireless Power Transfer Based on High Frequency Electric Field." World Electric Vehicle Journal 12, no. 3 (September 2, 2021): 141. http://dx.doi.org/10.3390/wevj12030141.

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This paper proposes a desktop wireless power transfer system that can wirelessly supply power to electrical equipment in a certain space above the aluminum foil using only a high-frequency electric field. Compared with other wireless power supply systems, this system has a smaller power receiving device and a wider power supply range, which is convenient for wireless power supply of portable electrical equipment and low-power electric vehicles. The power receiving device of the system is only the size of a mobile phone, and the power supply range can reach 1.2 m2. This article introduces the system design, electromagnetic field simulation and experiment of the desktop wireless power transfer system. The experimental results show that by using a mobile phone-sized receiving device to connect a light bulb and a fan, multiple loads can simultaneously receive power in a specific space above the desktop power supply. In addition, people can hold the power receiving device for wireless charging.

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Kwak, Kiho, Dongmin Kwak, and Joohong Yoon. "Design of Instantaneous High Power Supply System with power distribution management for portable military devices." Journal of Power Sources 288 (August 2015): 328–36. http://dx.doi.org/10.1016/j.jpowsour.2015.04.061.

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Vesnin, Sergey G., Mikhail K. Sedankin, Lev M. Ovchinnikov, Alexander G. Gudkov, Vitaly Yu Leushin, Igor A. Sidorov, and Igor I. Goryanin. "Portable microwave radiometer for wearable devices." Nexo Revista Científica 34, no. 04 (October 28, 2021): 1431–47. http://dx.doi.org/10.5377/nexo.v34i04.12690.

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This paper presents a new circuit of the miniature microwave radiometer for wearable devices, which can be used to monitor the core body temperature (CBT) of internal human tissues continuously 24/7. The measurement results of the proposed device, as opposed to the known miniature wearable radiometers, remain unchanged when the impedance of the examined area varies. We have derived an analytical expression for radiometer measurement error based on parameters of device components. This formula allows accuracies to be estimated and optimal parameters of the circuit to be selected to minimise measurement error at a design stage. It is shown that measurement error is independent of the antenna reflection coefficient and the temperature of the radiometer front-end. A prototype of the single-channel miniature radiometer has 32 х 25 х 14 mm3 dimensions and USB interface communication with PC. A 28-hour run of the device has shown that it is highly stable, and a maximum drift in temperature is 0.15 ̊C. Operating frequency range was 3400-4100 MHz, supply voltage - 5V; power supply of the radiometer in measurement mode is 210 mA; time constant of the radiometer without being averaged is 0.6 sec, at the same time, standard deviation δ = 0.17 ̊С, with further averaging during 4 sec δ=0.052 ̊С, with averaging during 30 sec δ =0.017 ̊C; when there were input reflections R2=0.25, an error in measuring brightness temperature shifted by 0.2 ̊ C; with 10 ̊C variations in ambient temperature the shift was 0.15 ̊C. Introduction of self-contained power supply and wireless communication with smartphone have made it possible to use the proposed radiometer as a wearable device to monitor the temperature of internal tissues and CBT during human activities.

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Shete, Dewang N., Akhilesh N. Dhole, Nakul P. Sarode, Abhijeet P. Chaudhari, Shubham R. Bopche, Rushabh R. Ingle, Umakant A. Dandge, and Prof Nachiket P. Kherde. "Portable Bricks Transfer Conveyor Belt." International Journal for Research in Applied Science and Engineering Technology 10, no. 5 (May 31, 2022): 1930–36. http://dx.doi.org/10.22214/ijraset.2022.42486.

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Abstract: In the process or manufacturing industry, raw materials and products need to be transported from one manufacturing stage to Another Material handling equipment are designed such that they facilitate easy, cheap, fast and safe loading and unloading with least human interference. For instance, belt conveyor system can be employed for easy handling of materials beyond human capacity in terms of weight and height. During the construction of slabs in civil structure, the continuous supply of construction material is needed. This is usually done with the help of labours, sometimes; a temporary material lift is fabricated for this. Both this process is labor intensive and costly. In this project we are undertaking design of material handling system which can supply construction material continuously to the top end of the construction site, and also to ensure the mobility of this system. For more than 200 years, belt conveyors are in use in many industries, especially in mining, cement, steel and agricultural industries. Belt conveyors have had an increasing importance and use during the past century. Today, they have the significant role in mining, cement factories, grain manipulation, etc. By time, applications of transporting materials from one point to another extended its boundaries; by requiring longer transfer distances, much faster speeds and much higher capacities.

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Oh, Jae-Kyun, Hye-Jin Nam, and Young-Kil Kim. "Realization of single supply to reduce power on portable radiation detection device." Journal of the Korea Institute of Information and Communication Engineering 19, no. 4 (April 30, 2015): 1024–30. http://dx.doi.org/10.6109/jkiice.2015.19.4.1024.

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Zhang, Si-Wen, Bo-Si Yin, Chang Liu, Zhen-Bo Wang, and Da-Ming Gu. "A lightweight, compressible and portable sponge-based supercapacitor for future power supply." Chemical Engineering Journal 349 (October 2018): 509–21. http://dx.doi.org/10.1016/j.cej.2018.05.125.

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Jagushte, G. S., Akashdeep Singh, Gourang Bhatawdekar, Salman Budye, and Nilesh Chiplunkar. "Design and Fabrication of Pedal Powered Washing Machine." Journal of Advance Research in Mechanical & Civil Engineering (ISSN: 2208-2379) 2, no. 3 (March 31, 2015): 68–71. http://dx.doi.org/10.53555/nnmce.v2i3.356.

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The Pedal Operated Washing Machine is the project which is best option for rural area where there is a problem of electric supply or there is shortage of electric supply. To run the washing machine there is a need of electric power and most of villages of India are suffering from this problem and so overcome and to solve this problem we selected washing machine which operated manually. This does not require any electric power supply or diesel supply. This project is low weight and portable so that easily transported. We use the simple cycling mechanism to run the machine shaft

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Bharathi Sankar Ammaiyappan, A., and Seyezhai Ramalingam. "Self-Powered Supercapacitor for Low Power Wearable device Applications." IOP Conference Series: Earth and Environmental Science 850, no. 1 (November 1, 2021): 012016. http://dx.doi.org/10.1088/1755-1315/850/1/012016.

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Abstract Piezoelectric generators can be used strong vibrations convert to electrical power, it can be stored and utilized in low power devices such as radio frequency identification tags (RFIDs), wireless, global position system (GPS) and sensors. Since most low power devices are wireless, it is important that they have their own independent power. Traditionally, electrical energy comes from heavy lead acid and lithium ion batteries, which contain chemicals that are not environmental friendly. More importantly, lead acid and lithium ion batteries have an average lifespan of 500–1000 cycles, compared to carbon-based supercapacitors (10 lakhs cycle). With the introduction of a wide range of portable, wearable electronics devices and health monitoring equipment. Piezoelectric power harvesting equipment is one of the most applications of portable electronic power supply. Supercapacitors are promising electrochemical energy storage devices which possessing very high power density, rapid charge, and discharge rates with a long lifecycle. Supercapacitors hold high power density as compared to dielectric capacitors and hence supercapacitors are extensively utilized for powering several portable electronic devices. Supercapacitors explore a wide range of applications as they can deliver a high power within a very short period. In this paper describes various supercapacitor powered potential applications in various sectors like flexible, portable, wearable electronics, implantable healthcare and biomedical sensor, etc.

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Zhang, Zeng Lin, Wen Ting Han, and Jun Chen. "Study of a Numerical Control DC Power." Applied Mechanics and Materials 246-247 (December 2012): 619–23. http://dx.doi.org/10.4028/www.scientific.net/amm.246-247.619.

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At present, in view of the status that the common DC power supply output voltage is fixed single, non-adjustable and practicality poor, this paper introduces a kind of numerical control power system that has many source output by using switch power supply circuit technology. The output voltage of the power based on single chip technology is numerical control adjustment. The major component of the power is voltage regulator circuit, input over-voltage protection circuit, output over-voltage protection circuit, DC/AC conversion circuit, filter circuit and full-bridge circuit. The power can offer a variety of different stable voltage output values and has display function. Through the PROTEUS software simulation and circuit testing, output effect of the power is good, practicability is great, and can be used as a variety of portable electrical universal power supply.

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He, Xin Sheng, Chun Fu Gao, Bin Wang, and Chu Xiong Xie. "The Design and Experiment of Energy Saving Power-Assisted System of Portable Electric Tool." Advanced Materials Research 468-471 (February 2012): 1251–56. http://dx.doi.org/10.4028/www.scientific.net/amr.468-471.1251.

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Since the heavy current and frequent start-stop of portable electric tool, the special energy saving power assisted system is designed. The method for solving these problems is to make a binary power supply with super capacitor and lead-acid battery. The super capacitor provides power assistance to increase output current when starting and recycles inertia energy when stopping, the energy distribution is done by control system. In this paper, the operation principle and control circuit are described and the effect of the proposed system is tested by experiment. The experiment results show that the proposed system double the output current and save energy around 20%. In this way, the problems of short-lifetime and inefficient power take off are solved and this energy saving power assisted system is also appropriate to electric mobile and so on which employ secondary electric power supply as power.

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Maolikul, Surapree, Thira Chavarnakul, and Somchai Kiatgamolchai. "Market Opportunity Analysis in Thailand: Case of Individual Power Sources by Thermoelectric-Generator Technology for Portable Electronics." International Journal of Innovation and Technology Management 16, no. 03 (May 2019): 1950027. http://dx.doi.org/10.1142/s0219877019500275.

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Thermoelectrics, an energy-conversion technology, has been developed for its potential to support portable electronics with an innovative power source. Primarily focusing on the metropolitan market in Thailand, the study, thus, aimed at the market insight into portable electronics users’ characteristics and opinions of thermoelectric-generator (TEG) technology commercialization. The business research was conducted to analyze their behaviors for power-supply lacking problems, encountering heat or cold sources, purchasing decision for a TEG-based charger and key decision factors. For practical applications, an innovative TEG-based charger should be more flexible by harnessing various heat or cold sources from ambient situations to generate electrical power.

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Lin, Zong-Hong, and Teresa HO. "(Invited) Self-Powered Sensors and Systems for Healthcare Applications." ECS Meeting Abstracts MA2022-01, no. 53 (July 7, 2022): 2184. http://dx.doi.org/10.1149/ma2022-01532184mtgabs.

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The self-powered sensors developed by us can function without external power supply. By directly converting mechanical energy or thermal energy into electric outputs, the output values of the developed sensors will be varied upon the sensing of target biomolecules or metal ions. With the simplicity, low-cost fabrication and label-free sensing mechanism, the developed self-powered sensors demonstrate great potential to serve as new prototypes of portable devices for the onsite sensing of samples. And as far as the development of wearable electronics is concerned, power supply has always been the bottleneck to overcome. We also utilized commercial textiles and proteins/hydrogels to fabricate biocompatible, portable, and lightweight generators to harvest biomechanical energy from human motions or thermal energy from body heat in the environment to directly power wearable electrochemical systems for humidity/temperature/sweat detections (ions, glucose, and lactate) and antibacterial applications. The developed wearable systems also show their adaptability to be integrated with next-generation smart textiles.

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Muchtar, Husnibes, and Ridwan Sobirin. "Rancang Bangun Alat Pendeteksi Medan Listrik Portable untuk Keamanan Manusia." RESISTOR (Elektronika Kendali Telekomunikasi Tenaga Listrik Komputer) 4, no. 1 (May 22, 2021): 47. http://dx.doi.org/10.24853/resistor.4.1.47-54.

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Medan listrik yang ditimbulkan oleh peralatan listrik memiliki dampak buruk bagi manusia, medan listrik tidak dapat dilihat dengan mata manusia namun dampaknya dapat dirasakan oleh tubuh manusia, untuk mengetahui adanya medan listrik dan jarak terjauh medan listrik pada suatu peralatan listrik, maka diperlukan alat pendeteksi medan listrik. Metode yang digunakan Pada proyek akhir ini adalah menggunakan IC CMOS CD 4093 dan sistem mikrokontroller AtMega 328 P. Adapun langkah-langkah yang digunakan yaitu identifikasi kebutuhan alat, perancangan perangkat keras, perancangan perangkat lunak, dan pembagian data. Perencanaan sistem ini terdiri dari 4 bagian : sistem sensor, sistem pengolah data, sistem penampil data dan rangkaian Catu Daya.Sistem sensor menggunakan IC CMOS CD 40493 yang berfungi untuk mendeteksi keberadaan medan listrik pada peralatan yang menggunakan sumber listrik. Sistem pengolah data berupa sistem minimum menggunakan mikrokontroller Atmega 328 P untuk mengolah data yang dihasilkan oleh IC CMOS CD 4093, kemudian bagian berikutnya adalah penampil data berupa LCD (Liquid Cristal Display) dengan type modul M1632 LCD, berfungsi untuk menampikan data yang ditangkap oleh sensor dan kemudian diolah pada sistem mikrokontroller Atmega 328 P kemudian ditampilkan pada LCD, Bagian terakhir yaitu rangkaian Power Supply, bagian ini sebagai penyedia catu daya agar rangkaian dapat bekerja semestinya.The electric field generated by electrical equipment has a bad impact on humans, the electric field cannot be seen with the human eye but its impact can be felt by the human body, to determine the presence of an electric field and the farthest distance from the electric field in an electrical equipment, an electric field detector is needed. . The method used in this final project is to use IC CMOS CD 4093 and AtMega 328 P microcontroller system. The steps used are identification of equipment requirements, hardware design, software design, and data sharing. This system planning consists of 4 parts: sensor system, data processing system, data display system and power supply circuit. The sensor system uses the CMOS CD 40493 IC which functions to detect the presence of an electric field in equipment that uses a power source. The data processing system in the form of a minimum system uses an Atmega 328 P microcontroller to process the data generated by the IC CMOS CD 4093, then the next part is a data viewer in the form of an LCD (Liquid Cristal Display) with the M1632 LCD module type, functions to display data captured by sensors and then processed on the Atmega 328 P microcontroller system then displayed on the LCD, the last part is the Power Supply circuit, this section serves as a power supply provider so that the circuit can work properly.

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Wang, Changfu, Yaohui Wang, Bin Zhang, Hui Sun, and Wanli Xu. "Research on high energy density portable power supply based on metal-air battery." Journal of Physics: Conference Series 1983, no. 1 (July 1, 2021): 012064. http://dx.doi.org/10.1088/1742-6596/1983/1/012064.

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Jackson, Douglas J., John F. Naber, Thomas J. Roussel,, Mark M. Crain, Kevin M. Walsh, Robert S. Keynton, and Richard P. Baldwin. "Portable High-Voltage Power Supply and Electrochemical Detection Circuits for Microchip Capillary Electrophoresis." Analytical Chemistry 75, no. 14 (July 2003): 3643–49. http://dx.doi.org/10.1021/ac0206622.

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Liou, Jian-Chiun, and Cheng-Fu Yang. "Photovoltaics battery module power supply system with CIGS film applied in portable devices." Microelectronics Reliability 99 (August 2019): 96–103. http://dx.doi.org/10.1016/j.microrel.2019.06.005.

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Ulinuha, Agus, and M. Burhanduin Ubaidillah. "Vertical Wind Turbine Coupled with Modified Synchronous Generator for Portable Power Generation." Urecol Journal. Part E: Engineering 1, no. 2 (December 11, 2021): 103–10. http://dx.doi.org/10.53017/uje.106.

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Coastal region normally has sufficient wind power that has not been properly utilized. On the other hand, some places in this region do not have electricity supply from the utility due to some reason. People activity in these areas may need some electricity at least for lighting the area in the evening. For the purpose of generating electricity, a portable power generation is developed to use the wind power and used to supply the power for the light. Wind power plants have so far used propellers with horizontal configurations. In this model, the blades used in propellers have limited dimensions due to mechanical considerations. In addition, the direction of the propeller needs to be directed toward the wind flow, so that a steering wheel and a rotating base are required. To overcome this problem, it is necessary to utilize a number of wind impulse blades placed on the vertical axis. In addition to the expectation to obtain greater thrust, no mechanical equipment is necesary to direct the turbine toward the direction of wind flow. These advantages are expected to increase the output voltage of the generator coupled to it. The generator used in this research is a modified induction motor with some additional magnetic poles to become synchronous generator. The generated power is used to charge a battery which is used to power the light at the night. Small scale generator prototype was developed and tested for coastal locations or other open spaces to obtain wind flow with sufficient power to drive turbine blades.

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Cánovas-Saura, Antonio, Ramón Ruiz, Rodolfo López-Vicente, José Abad, Antonio Urbina, and Javier Padilla. "Portable Photovoltaic-Self-Powered Flexible Electrochromic Windows for Adaptive Envelopes." Electronic Materials 2, no. 2 (June 2, 2021): 174–85. http://dx.doi.org/10.3390/electronicmat2020014.

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Variable transmission applications for light control or energy saving based on electrochromic materials have been successfully applied in the past in the building, sports, or automotive fields, although lower costs and ease of fabrication, installation, and maintenance are still needed for deeper market integration. In this study, all-printed large area (900 cm2 active area) flexible electrochromic devices were fabricated, and an autoregulating self-power supply was implemented through the use of organic solar cells. A new perspective was applied for automotive light transmission function, where portability and mechanical flexibility added new features for successful market implementation. Special emphasis was placed in applying solution-based scalable deposition techniques and commercially available materials (PEDOT-PSS as an electrochromic material; vanadium oxide, V2O5, as a transparent ion-storage counter electrode; and organic solar modules as the power supply). A straightforward electronic control method was designed and successfully implemented allowing for easy user control. We describe a step-by-step route following the design, materials optimization, electronic control simulation, in-solution fabrication, and scaling-up of fully functional self-powered portable electrochromic devices.

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Khosravi, Arash. "Fuel Cell Power Train System Simulation of a Car SAMAND SOREN." Mapta Journal of Mechanical and Industrial Engineering (MJMIE) 1, no. 1 (December 20, 2017): 14–23. http://dx.doi.org/10.33544/mjmie.v1i1.18.

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Due to increasing energy crisis and environmental problems because of air pollution, fuel cell hybrid vehicles are considered as an alternative for internal combustion (IC) vehicles. Proton exchange membrane fuel cells (PEMFC) are the most proper kind of fuel cells for portable usage due to high power density and low performance temperature. In this paper, power train system of a real car, SAMAND SOREN, is modeled and simulated using a dynamic model in MATLAB/SIMULINK software. Five important subsystems in the model are: cathode air supply system, anode fuel supply system, electric motor, battery, and power transmission system. Finally, parameters like power and voltage produced by fuel cell, electric motor torque and vehicle speed are demonstrated as results.

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Nazifah Abdullah, A., M. Asri Jusoh, Norkharziana Mohd Nayan, M. Syahril, and N. Nadiah Ayop. "Multi-output Portable Universal Power Supply Kit with Plug-and-Use Equipment for Emergency Application." Indonesian Journal of Electrical Engineering and Computer Science 6, no. 3 (June 1, 2017): 497. http://dx.doi.org/10.11591/ijeecs.v6.i3.pp497-503.

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This paper presents design and analysis of Multi-output Portable Universal Power Supply Kit (EPS Kit). This EPS Kit is intended as an alternative power supply kit to reduce the issue of a power outage. Lead Acid Battery which is considered one of the easiest sources that can be found during an emergency state is the best alternative energy source. The EPS Kit is designed to store the power in Lead Acid Battery as the main source and powered by the solar energy as the secondary source and will be providing both standard household alternating current (AC) and most common direct current (DC) power. This Kit is a stand-alone system comes with plug-and-use kit in which the system can be recharged using solar and AC power. The plug-and-use kit is equipped with intelligent multi-USB ports, adjustable dual mode NiCd, Ni-Mh, and Li-Ion battery which are Discharge/Charger mode, AC output port, LED lamp, and emergency electrical accessories. EPS Kit is also portable which installed with wheel and handle for mobility application. Production of EPS Kit is involved software and hardware. The software used are 3D CAD design software and circuit simulation software respectively for preliminary 3D drawing design and output circuit validation. Experimental results of the EPS Kit load testing, charging and discharging state are conducted in order to demonstrate the EPS Kit functionality and usage.

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Huang, Chao. "FPGA-Based Battery Management System." Applied Mechanics and Materials 543-547 (March 2014): 792–95. http://dx.doi.org/10.4028/www.scientific.net/amm.543-547.792.

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This article introduces a battery management system of portable receiver or equipment based on a FPGA chip for control. This design can control the charge-discharge process and obtain the battery information through a SoPC, which can transfer the information to the upper computer for displaying and managing through the interface between the local and the network, or warn and deal with the abnormal condition according to the information. This design can be widely used in portable embedded system or digital system for power supply.

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Ren, Ren, Xian Xiang Chen, Xin Yu Hu, Bing Zhou, Xiao Tan, Yu Wang, and Shan Hong Xia. "A Bluetooth-Based Portable Design Device with Wireless Power Module for Electrocardiogram and Respiration Measurement." Applied Mechanics and Materials 441 (December 2013): 129–32. http://dx.doi.org/10.4028/www.scientific.net/amm.441.129.

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This paper presents compact design and implementation of a portable device for application of continuous Electrocardiogram(ECG) and respiration measurement in the field of dynamic health monitoring. Bluetooth technique is used for data transmission between portable device and acquisition node such as computer or smart phone, given its advantages of low power consumption and easy wireless connection. The device also includes a wireless power module for charging the lithium polymer battery with the charging current up to 300mA, which makes power supply much more conveniently. Measurement of ECG and respiration is implemented by two electrodes layout solution and ADS1292R which enable the system design at significantly reduced size(60mm*40mm), power, and overall cost. Experiments are carried out with appropriate work parameters as sample rates and resolution. The results show that our device can accurately acquire the ECG and multiple respiration states..

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Zhang, Meng, Ming Yu, Qing Song He, Bao Lei Wang, Jie Ru, and Zhen Dong Dai. "Design of a Portable IPMC Actuator Tester." Applied Mechanics and Materials 461 (November 2013): 347–51. http://dx.doi.org/10.4028/www.scientific.net/amm.461.347.

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As a new intelligent material, IPMC (Ionic polymer-metal composite) can be driven under low voltage with large deformation, and has been widely used in biomedical and robotic systems. Traditional IPMC testing system is bulky, high cost, and inconvenient to use. In order to achieve the portability and convenience of the IPMC testing system, a small and low-cost IPMC tester was designed. The power supply and control system of the tester were integrated into an IPMC electrode clamp. The main research work included control system circuit design, electrode clamp and overall exterior design. The displacement measurement results showed that the design for the IPMC tester was correct and feasible.

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Do, Jae-Seok, and Jang-Wook Hur. "Random Vibration Analysis of Portable Power Supply Container for Radar With U.S. Military Standards." Korean Society of Manufacturing Process Engineers 21, no. 9 (September 30, 2022): 71–77. http://dx.doi.org/10.14775/ksmpe.2022.21.09.071.

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Adamczyk, Arkadiusz. "A concept of minimizing an electric power supply system for portable gear and arms." Zeszyty Naukowe Akademii Marynarki Wojennej 206, no. 3 (September 22, 2016): 5–14. http://dx.doi.org/10.5604/0860889x.1224736.

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Kumari, P. Aruna, N. V. Maheswara Rao, and S. Ram Sai Nithin Kumar. "Battery Operated Portable Electric Kettle." Journal of Digital Integrated Circuits in Electrical Devices 7, no. 3 (December 31, 2022): 23–35. http://dx.doi.org/10.46610/jdiced.2022.v07i03.005.

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Today, most of the homes have been fitted with electric kettles and heating systems. Electric kettles play a vital role in the development of hot water. Hot water is necessary to ensure good hygiene for everyone. Compared to drinking cold water, drinking hot water especially relieves congestion in the throat, and even encourages relaxing. Conventional electric kettles must be stored in a fixed location at the same time (which is not portable) with a fixed power source. On a trek, especially in cold countries, carrying enough drinking water is crucial to stay the person energized and feel well. On long hikes, it can be extremely dangerous to become dehydrated. Ice-covered hills freeze the water. There will be no electricity source available to heat the water while trekking on ice-covered hills. This condition has led to the proposed system i.e. battery operated portable kettle that can heat the water at any place. Without any fixed power supply, the proposed heating system will generate hot water that run on a battery source. The kettle can be shipped anywhere to make it more portable. This makes it very easy to use hot water safely with the battery management system. A battery management system (BMS) is an electronic regulator that monitors and controls the charging and discharging of rechargeable batteries. Battery management systems of various types are used in most devices that use rechargeable batteries.

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Nguyen, Chi Kien, R. S. Kashaev, and O. V. Kozelkov. "The impulse power unit for a portable proton magnet resonance relaxometer." Power engineering: research, equipment, technology 21, no. 6 (April 21, 2020): 111–17. http://dx.doi.org/10.30724/1998-9903-2019-21-6-111-117.

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In this paper described the switching power supply (SPS) unit and represented its importance for electronic circuits in electronic devices. SPS directly affect the operation of electrical circuits and electronic equipment. In particular, this paper describes its use in a portable proton-magnetic resonance (PMR) relaxometer. Especial attention is to the method of constructing the circuit, and also deals with the comparense of the SPS with a transformer power source. This article presents the structure of schematic diagram of the SPS. The SPS structure works without a transformer, which reduces the size of the system and increases overall efficiency. The proposed circuit structure is based on a push-pull controller, a high- frequency converter with an amplifier and a voltage multiplier circuit and a voltage stabilizer. The simulation and experiments confirm the proposed configuration of SPS.

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Pable, S. D., Mohd Ajmal Kafeel, A. K. Kureshi, and Mohd Hasan. "Robustness Comparison of Emerging Devices for Portable Applications." Journal of Nanomaterials 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/242459.

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Extensive development in portable devices imposes pressing need for designing VLSI circuits with ultralow power (ULP) consumption. Subthreshold operating region is found to be an attractive solution for achieving ultralow power. However, it limits the circuit speed due to use of parasitic leakage current as drive current. Maintaining power dissipation at ultralow level with enhanced speed will further broaden the application area of subthreshold circuits even towards the field programmable gate arrays and real-time portable domain. Operating the Si-MOSFET in subthreshold regions degrades the circuit performance in terms of speed and also increases the well-designed circuit parameter spreading due to process, voltage, and temperature variations. This may cause the subthreshold circuit failure at very low supply voltage. It is essential to examine the robustness of most emerging devices against PVT variations. Therefore, this paper investigates and compares the performance of most promising upcoming devices like CNFET and DG FinFET in subthreshold regions. Effect of PVT variation on performance of CNFET and DG FinFET has been explored and it is found that CNFET is more robust than DG-FinFET under subthreshold conditions against PVT variations.

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Tan, Jin Jack, Jiun Cai Ong, Kin Keong Chan, Kam Hing How, and Jee Hou Ho. "Development of a Portable Automated Piano Player CantaPlayer." Applied Mechanics and Materials 284-287 (January 2013): 2037–43. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.2037.

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This paper describes the development of a low cost, compact and portable automated piano player CantaPlayer. The system accepts digital MIDI (Musical Instrument Digital Interface) files as input and develops pushing actions against piano keys which in turn produces sounds of notes. CantaPlayer uses Pure Data, an audio processing software to parse MIDI files and serve as user interfaces. The parsed information will be sent to Arduino, an open source microcontroller platform, via serial communication. The Arduino I/O pins will be triggered based on the information from Pure Data of which connected transistors will be activated, acting as a switch to draw in larger power supply to power the solenoids. The solenoids will then push the respective piano keys and produce music. The performance of CantaPlayer is evaluated by examining the synchronousness of the note playing sequence for a source MIDI and the corresponding reproduced MIDI. Three types of MIDI playing sequence (scale, polyphonic and rapid note switching) were tested and the results were satisfactory.

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Journal articles on the topic 'Portable power supply'

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