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Journal articles on the topic '555 timer'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Rathore, T. S. "Timer 555 with Dual Supply." IETE Journal of Education 34, no. 2 (1993): 85–90. http://dx.doi.org/10.1080/09747338.1993.11436411.

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2

Camenzind, H. R. "Redesigning the old 555 [timer circuit]." IEEE Spectrum 34, no. 9 (1997): 80–85. http://dx.doi.org/10.1109/6.619384.

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H, Moni Sree, Dharshana N, Dheetchithaa S, and Archana A. "RAIN SENSING AUTOMATIC CAR WIPER USING 555 TIMER." International Journal of Technical Research & Science 5, no. 8 (2020): 21–26. http://dx.doi.org/10.30780/ijtrs.v05.i08.003.

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Shakir, Muhammad, Shuoben Hou, Alexey Metreveli, Arman Ur Rashid, Homer Alan Mantooth, and Carl-Mikael Zetterling. "555-Timer and Comparators Operational at 500 °C." IEEE Transactions on Electron Devices 66, no. 9 (2019): 3734–39. http://dx.doi.org/10.1109/ted.2019.2925915.

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Everest, Frank. "The characteristics and use of the 555 timer." Electronics Education 2000, no. 3 (2000): 34–40. http://dx.doi.org/10.1049/ee.2000.0051.

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Monday, Esiri Amagre, Erungworo Okayim Paul, and Chukwudi Aloamaka Anthony. "Design and implementation of an astable multivibrator." World Journal of Advanced Research and Reviews 22, no. 3 (2024): 2014–19. https://doi.org/10.5281/zenodo.14765474.

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The purpose of this paper was to design and implement an astable multivibrator circuit using a 555 timer integrated circuit (IC). An astable multivibrator is a type of electronic oscillator that generates a continuous stream of rectangular voltage pulses without any external triggering. The key motivation behind this work was to develop a simple and cost-effective astable multivibrator that can generate waveform signals for various timing and pulse generation applications. The circuit was designed using standard 555 timer configuration with resistors R1=3.3kΩ, R2=5.6kΩ and capacito

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Amagre Monday Esiri, Paul Erungworo Okayim, and Anthony Chukwudi Aloamaka. "Design and implementation of an astable multivibrator." World Journal of Advanced Research and Reviews 22, no. 3 (2024): 2014–19. http://dx.doi.org/10.30574/wjarr.2024.22.3.1041.

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The purpose of this paper was to design and implement an astable multivibrator circuit using a 555 timer integrated circuit (IC). An astable multivibrator is a type of electronic oscillator that generates a continuous stream of rectangular voltage pulses without any external triggering. The key motivation behind this work was to develop a simple and cost-effective astable multivibrator that can generate waveform signals for various timing and pulse generation applications. The circuit was designed using standard 555 timer configuration with resistors R1=3.3kΩ, R2=5.6kΩ and capacitor C1=100μF t

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Chen, Liang-Yu, Joseph M. Flatico, Richard L. Patterson, et al. "Test of SOI 555 Timer with High Temperature Packaging." SAE International Journal of Aerospace 1, no. 1 (2008): 966–72. http://dx.doi.org/10.4271/2008-01-2882.

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Srikanth T, Dhanalakshmi B, Amuktha D, Manikanta J, Ramalokeswar T, and Nagaphanindhra P. "Portable rain water detecting alarm using ic 555 timer." South Asian Journal of Engineering and Technology 12, no. 2 (2022): 23–26. http://dx.doi.org/10.26524/sajet.2022.12.26.

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   Everyone wants to stay educated and productive in a world when everything is automated. Water harvesting may also be simply accomplished with the help of automation. In this article, we'll talk about the Rain Alarm project, which is quite important for rainwater gathering. The circuit detects rain by sounding an alert while you are inside the house, allowing us to take appropriate action.This project is a portable rain water detecting alarm designed to protect goods from rain while also conserving water. It uses a rain sensor and a versatile multifunctional IC 555 Timer Ch

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Abrar, Md Moyeed. "Design and Implementation of Astable Multivibrator using 555 Timer." IOSR Journal of Electrical and Electronics Engineering 12, no. 01 (2017): 22–29. http://dx.doi.org/10.9790/1676-1201022229.

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11

Suherman and Ulfa Dina Zakia. "Motor Speed Control Using IC Timer 555 Based on Proteus Software Simulation." Journal of Educational Engineering and Environment 3, no. 2 (2025): 56–60. https://doi.org/10.36526/jeee.v3i2.4877.

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This simulation aims to determine the effect of the percentage of potential resistance on the waves produced from a dc motor circuit using IC 555 as a wave generator. The simulation results show that the smaller the percentage of potential resistance, the faster the RPM on the motor with the greater the voltage and amperage on the motor. The resulting wave has a very strong influence on the potential resistance, the smaller the resistance, the longer the wave produced by the IC 555 will be and will have a relatively short density. Analysis shows that changes in resistance percentage affect the

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Lin, Wen-Bin, and Kao-Feng Yarn. "The Pressure-Speed Control of 555 Timer Circuit for Flow-Controlled Booster Motor by Solar Cell." International Journal of Research and Review 8, no. 4 (2021): 119–25. http://dx.doi.org/10.52403/ijrr.20210417.

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This paper presents the application of 555 timer circuit. For general PWM control circuit components manner and cost reduction improvements, and apply this system of automatic flow-controlled motor. We use pressure switch to control the rpm of automatic flow-controlled motor. And then, it can enhance the water pressure due to a water tower lack. The system can reach the target of energy –saving and environment friendly by using solar energy. Finally, the consumer can adjust the water flow volume by choosing low speed, middle speed, and high speed of permanent magnet DC motor revolution due to

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Gafarov, Gadir, and S. E. Valehov. "Design of stimulation device of biological active points using 555 timer." Herald of the Azerbaijan Engineering Academy 13, no. 4 (2021): 113–20. http://dx.doi.org/10.52171/2076-0515_2021_13_04_113_120.

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14

Aji, Wahyu Sapto. "PERANCANGAN PURWA RUPA MODULASI LEBAR PULSA BERBASIS TIMER 555 DAN IRF 40." TELKOMNIKA (Telecommunication Computing Electronics and Control) 6, no. 2 (2008): 101. http://dx.doi.org/10.12928/telkomnika.v6i2.556.

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K., Ravindra Sai*1 Ch. V. D. Krishna Vamsi 2. V. Vijay Kumar 3. B. Pradeep Kumar 4. &. P. Sudheer5. "DC MOTOR SPEED CONTROL USING PWM TECHNIQUE." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 7, no. 4 (2020): 27–31. https://doi.org/10.5281/zenodo.3758680.

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In Industry DC motor is widely uses for speed control and load characteristics, it’s easy controllability provide effective and precise output. So, application of DC motor is large for commercial purpose. Speed control of DC motor is very crucial in application where required speed is precision and correcting signal representing and to operate motor at constant speed, so we used PWM method which are full fil all requirements to speed control of DC motor. PWM based speed control system consists of electronic components (integrated circuit, Potentiometer etc.) In this Project 555 timer (NE

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M, Misto, Muhtarom Y.A, and Supriyadi S. "Pengukuran Karakteristik Dielektrik Minyak Goreng Berdasarkan Lama Pemanasan Menggunakan Rangkaian Sederhana Multivibrator IC 555." Jurnal Teknik Elektro dan Komputasi (ELKOM) 1, no. 1 (2019): 1–9. http://dx.doi.org/10.32528/elkom.v1i1.2177.

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An electronic system for cooking oil dielectric constant measurement have been done. The system was employed an capacitive sensor, IC Timer 555, oscilloscope, and power supply. The cooking oil is placed in a capacitive sensor as part of unstable multivibrator IC 555 circuit. The samples(labeled and non labeled) temperature was condisioned on room temperature and at 100 ⁰C with the heated time duration of 1 hours, 2 hours, and 3 hours treatment. The result of the measurement shows that all sample with time duration 1 hours and 2 hours increases but with time duration 3 hours turn down.

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Santillán, Moisés. "Synchronization dynamics of two mutually coupled 555-IC based electronic oscillators." Revista Mexicana de Física 64, no. 2 (2018): 107. http://dx.doi.org/10.31349/revmexfis.64.107.

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We designed and implemented an electronic oscillatory system consisting of two mutually coupled oscillators (each one based on the 555-timer IC working in astable mode), and investigated its synchronization dynamics. For that purpose, we characterized the phase-lockingrhythms achieved in a large set of values of the uncoupled frequency ratio and of the coupling strength between both oscillators. We furtherdeveloped an ODE mathematical model that qualitative reproduces the obtained experimental results and provides further insight into thesystem behavior.

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18

Cass, Stephen. "The big time: build a giant version of the 555 Timer IC [Resources_Hands On]." IEEE Spectrum 51, no. 3 (2014): 25–26. http://dx.doi.org/10.1109/mspec.2014.6745876.

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O. Daniel, T., D. Ochola, G. O. Edaogbogun, O. K. Olawale, and P. E. Okobi. "Analytical design and implementation of a sequential display signboard." International Journal of Physical Research 12, no. 2 (2024): 90–96. http://dx.doi.org/10.14419/9c6t1511.

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This study is aimed at the analytical design of a lighting system called a sequential display signboard to create a special illumination effect, which can be used in cock tail, disco halls, offices door, theatre and signboards using relevant mathematical equations and physics relations. The sequential display signboard consists of power supply unit connected to an arrangement of oscillator and switching circuits that triggered the light emitting diodes (LED) to display the words which are written inform of a message display. The system consists of 555 timers which functions as an Astable Multi

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Afruz, Umme. "DEVELOPMENT OF TV REMOTE JAMMER CIRCUIT USING 555 TIMER IC AND INFRARED LIGHT EMITTING DIODE." International Journal of Engineering Applied Sciences and Technology 04, no. 11 (2020): 464–69. http://dx.doi.org/10.33564/ijeast.2020.v04i11.083.

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21

Wokoma, Biobele A., Folorunsho M. Odeyemi, Otonye E. Ojuka, and Ibiminanyo R. Nathan. "Design and Implementation of a Cost-effective Transformerless Rechargeable Mosquito Repellent." Recent Trends in Analog Design and Digital Devices 7, no. 1 (2024): 28–36. https://doi.org/10.5281/zenodo.10633437.

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<em>This paper presents a simple low-cost design and implementation of a rechargeable mosquito repellent. The circuit is based on 555 Timer IC and a Transformer-less power supply using X-rated capacitors. It is simple and easy to build with few components. The system has been broken down into two major parts namely; DC power supply and repellent circuit. Details of each sub-circuit are described in the paper.</em>

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22

Sukratu Chakraborty. "A Simple Method To Fire 3 Phase Stepped Wave Bridge Inverter Using 555 Timer, Counter By JK Flip-Flop And Decoder By And Gate." international journal of engineering technology and management sciences 7, no. 2 (2023): 1–8. http://dx.doi.org/10.46647/ijetms.2023.v07i02.001.

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With the recent trend of economy where making one system is involved with lower cost devices used to make the same, this project involves no costly microcontroller or microprocessor IC or board for firing one 3 phase inverter in 180 degree mode. Rather simple 555 timer, JK Flipflop, AND gates, diodes used for firing one Transistorised 3 phase inverter in 180 degree conduction mode. The theoretical briffing with project circuits in MULTISIM and output are given in the following content.

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Li, Changjin, Jian Cao, and Xing Zhang. "Water Temperature Measurement Method Based on Square-Wave Signal Generator." Journal of Physics: Conference Series 2198, no. 1 (2022): 012022. http://dx.doi.org/10.1088/1742-6596/2198/1/012022.

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Abstract Water temperature measurement is widely used and plays an important role in fishery breeding, agricultural irrigation, temperature control of household water heater and other aspects. People have a huge demand for water temperature measurement devices. The performance of the existing device is greatly affected by the environment and often requires manual intervention. The square-wave signal generator has simple structure, stable output, low energy consumption, easy operation and low price. The water temperature measurement method based on the square-wave signal generator can expand th

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Fauzi, F., M. E. Zaidi, U. Udom, and N. A. A. Manaf. "Switch Mode Power Supply (SMPS) Utilizing Flyback Converter Topology: Simulation and Experiment." Journal of Physics: Conference Series 2312, no. 1 (2022): 012050. http://dx.doi.org/10.1088/1742-6596/2312/1/012050.

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Abstract This paper presents simulation and experimental works of a single, 5 volt DC output switch mode power supply (SMPS). The main objective of this work is to design, build and evaluate the SMPS using flyback converter topology. In this work, a 555 timer was chosen as the pulse width modulator. The 555 timer was chosen because it is easily available, cheap and has the capability to produce stable pulse width modulation. The complete circuit of the SMPS consist of full bridge rectifier, smoothing capacitor, pulse width modulator, high frequency transformer and flyback converter. The comple

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Mohapatra, Badri Narayan, Jijnyasa Joshi, Aditi Wathe, Ashwini Chanakhekar, Aakansha Patil, and Vaishnavi Phadtare. "SIMULATION DESIGN PERFORMANCE FOR POWER SUPPLY AND A VARIABLE VOLTAGE TO FREQUENCY CONVERTER." Journal of Engineering Science XXVII (4) (December 15, 2020): 76–79. https://doi.org/10.5281/zenodo.4288269.

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This paper presents the experimental results and the information of a power supply of range 0 - 5 volts which is further supplied to a voltage to frequency converter circuit. The main purpose for the construction of the power supply and the voltage-to-frequency converter circuit is to observe the relation between the input voltage and the output frequency generated which is observable on the screen of the oscilloscope. The simulation for designing a voltage to frequency converter circuit is easy, it gives early information about the design circuit consumes very less amount of power and hence h

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Santillán, Moisés. "Periodic Forcing of a 555-IC Based Electronic Oscillator in the Strong Coupling Limit." International Journal of Bifurcation and Chaos 26, no. 03 (2016): 1630007. http://dx.doi.org/10.1142/s021812741630007x.

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We designed and developed a master-slave electronic oscillatory system (based on the 555-timer IC working in the astable mode), and investigated its dynamic behavior regarding synchronization. For that purpose, we measured the rotation numbers corresponding to the phase-locking rhythms achieved in a large set of values of the normalized forcing frequency (NFF) and of the coupling strength between the master and the slave oscillators. In particular, we were interested in the system behavior in the strong-coupling limit, because such problem has not been extensively studied from an experimental

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Cho, Eun Seok, Jae Su Ko, and Yong Keun Lee. "High power gate driver design using 555 timer and photo coupler for electronic/hybrid car and electroplating rectifier." KOREA SCIENCE & ART FORUM 20 (June 30, 2015): 421. http://dx.doi.org/10.17548/ksaf.2015.06.20.421.

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Niranatlumpong, Peera, and Michael A. Allen. "A 555 Timer IC Chaotic Circuit: Chaos in a Piecewise Linear System With Stable but No Unstable Equilibria." IEEE Transactions on Circuits and Systems I: Regular Papers 69, no. 2 (2022): 798–810. http://dx.doi.org/10.1109/tcsi.2021.3123286.

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Zhang, Ying Qi, You Feng Luo, Ming Feng Lin, and Wei Xiong. "Capacitance-Based Design of the Tap Water Flow Control Device." Applied Mechanics and Materials 273 (January 2013): 694–98. http://dx.doi.org/10.4028/www.scientific.net/amm.273.694.

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In this paper, a capacitance-based design of the tap water flow control device is introduced. It is designed to prevent the waste of water resources caused by the current taps. It collects the capacitance signal by means of C/F conversion module based on 555 timer. Then the switching frequency signal and the flow frequency signal are generated according to the capacitance signal collected. They will be analyzed and compared with the signal STC15F100 microcontroller stored and generating the switch commands and flow regulation instructions to control the step motor. Finally, the water flow cont

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Hasan, Athraa Sabeeh. "Simple, Low Cost, and Efficient Design of a PC-based DC Motor Drive." Journal of University of Babylon for Engineering Sciences 26, no. 9 (2018): 1–14. http://dx.doi.org/10.29196/jubes.v26i9.1695.

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 In industrial applications, requiring variable speed and load characteristics, the DC motor is the attractive piece of equipment; due to its ease of controllability. Pulse-width modulation (PWM) or duty-cycle variation methods are commonly used in speed control of DC motors. A simple, low cost, and efficient design for a control circuit uses the PWM to adjust the average voltage fed the DC motor is proposed in this paper. The objective of this paper is to illustrate how the DC motor's speed could be controlled using a 555 timer. This timer works like a changeable pulse width generator.

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Dey, Debangshu, and Sugata Munshi. "SIMULATION STUDIES ON A NEW INTELLIGENT SCHEME FOR RELATIVE HUMIDITY AND TEMPERATURE MEASUREMENT USING THERMISTORS IN 555 TIMER CIRCUIT." International Journal on Smart Sensing and Intelligent Systems 3, no. 2 (2010): 217–29. http://dx.doi.org/10.21307/ijssis-2017-389.

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Chunduri, Roshan. "Preventing Accidental Overdoses by Innovating a Restrictive Prescription Pill Dispenser Vial (RPPDV)." International Journal for Research in Applied Science and Engineering Technology 9, no. 10 (2021): 15131–1521. http://dx.doi.org/10.22214/ijraset.2021.38399.

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Abstract: Rather than attempting to prevent all overdoses, the Prescription Pill Dispenser Vial (RPPDV) aims to prevent accidental overdoses by controlling how many pills a user can access within a twenty-four hour period. The RPPDV is much like a traditional pill vial. The body is similar to a conventional pill vial; however, it is modified to prevent the cap's opening without a special screw. The cap is heavily modified and uses a CR2032 or CR2025 coin cell battery to power a gate and the unlocking of the pill cap. The RPPDV works first when the user clicks the red button on the cap of the R

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Rao, A. Jagannadha, Yasuhiro Shimada, Chandrasekhar R. Aiyer, Noriyuki Yanagita, Toru Komatsu, and Shuzo Hattori. "Model of a New Generation of Tracheostomy and Endotracheal Tubes." Annals of Otology, Rhinology & Laryngology 98, no. 2 (1989): 157–59. http://dx.doi.org/10.1177/000348948909800214.

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The feasibility of monitoring cannula obstruction was studied by conversion of the electrical resistance of substances that are capable of causing obstruction into audible auditory signals. Copper-nickel-gold electrodes were thermal pressed onto polyimide-based flexible films placed as 1-mm wide strips along the inner surface of tracheostomy and endotracheal tubes. The responses were fed into a resistance-to-frequency converter (IC 555 timer), and the output was frequency selected to generate auditory responses through a piezoelectric beeper. Quantitative estimates of responses from the IC out

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Saptadi, Arief Hendra, Jaenal Arifin, and Wasis Dasa Nugraha. "Perancangan Dan Pembuatan Charger Handphone Portable Menggunakan Sistem Penggerak Generator AC Dengan Penyearah." JURNAL INFOTEL - Informatika Telekomunikasi Elektronika 2, no. 2 (2010): 12. http://dx.doi.org/10.20895/infotel.v2i2.79.

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Catu daya dalam sebuah sistem merupakan bagian yang utama, karena sebagai sumber atau penyedia energi, begitu pula pada perangkat telekomunikasi yang digunakan seperti handphone. Catu daya pada handphone adalah baterai, apabila suatu saat baterai dalam keadaan lowbatt, dan tidak ada sumber catuan listrik yang dapat digunakan tentunya hal tersebut dapat mengganggu proses komunikasi yang akan dilakukan. Perancangan perangkat ini dibagi menjadi beberapa blok rangkaian, yaitu blok catu daya yang berisi sumber sebagai penyedia energi (generator AC), rangkaian penyearah, filter, dan blok Pulsa width

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Borah, Siddhanta, R. Kumar, and Subhradip Mukherjee. "Low-cost IoT framework for irrigation monitoring and control." International Journal of Intelligent Unmanned Systems 9, no. 1 (2020): 63–79. http://dx.doi.org/10.1108/ijius-12-2019-0075.

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PurposeThe purpose of this work is to make an IoT-based low-cost and power-efficient portable system to control irrigation using a threshold value algorithm and to measure soil-irrigation-related parameters such as soil moisture, soil temperature, humidity and air temperature.Design/methodology/approachThis paper presents a threshold value algorithm to optimize power consumption and to control irrigation process.FindingsThe system uses ESP-12F 8266 as the main microcontroller unit to monitor and control irrigation system. The system also consists of an actuator system that triggers automatical

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Danladi, A., and C. Nathan. "DESIGN CONSTRUCTION AND TESTING OF AN INCREMENTAL SHAFT ENCODER FOR MEASUREMENT OF ANGULAR VELOCITY OF A SHAFT." Continental J. Engineering Sciences 3 (July 22, 2008): 21–29. https://doi.org/10.5281/zenodo.833665.

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An incremental shaft encoder has been designed and developed for measuring angular velocity of a shaft. The construction of the circuit was achieved using disc of a plastic materials with fifteen slots. Infrared light emitting diode, comparator, photo transistor (sensor), 555 timer, encoder, decoder, differentiator (control logic) and display. Bubble resolver was also included in the circuits to eliminate ± 1 counting error which is inherent in most digital device. The incremental shaft encoder designed and developed was able to measure maximum speed of 2500rpm and the corresponding frequency

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Shaiq, Ali, and Iftikhar Muhammad. "Design and Simulation of Low Cost Pure Sin Wave Inverter Through Multivibrator Technique by Using Multisim." International Journal of Engineering Works (ISSN:2409-2770) 4, no. 10 (2017): 166–71. https://doi.org/10.5281/zenodo.1002392.

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Pure sine wave transformers are very important nowadays when it comes to using ds power sources for both low and high-power applications. These inverters not only increase the efficiency of the power system but also prevent electrical components from damaging. Much work has been done in the field of pure sine wave inverter but for a waveform with low number of harmonics along with high efficiency is still an open challenge. There are techniques available to do this, but the need to adapt to a solution that is easy to implement as well as specifically for low energy applications. In this paper,

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Zhang, Zeng Lin, Pu Te Wu, and Xiao Qing Yu. "Study of Energy Saving Lamp System for Sound and Light Double Control." Advanced Materials Research 590 (November 2012): 222–26. http://dx.doi.org/10.4028/www.scientific.net/amr.590.222.

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The main content of intermittent lamp energy saving technology study in small public places is the circuit control system. A lamp energy saving control circuit system is developed and designed by using the timer 555 modules, Silicon controlled technology, power supply circuit, photosensitive and audio sensor module, etc. The system has sound and light double control and timing function, photosensitive and audio sensing circuit dormancy and lamp shut off during the day or light is good. In the evening or subtle lighting, photosensitive and audio sensors are opened at the same time, lamp working

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Hou, Hanyu, Kezhi Pu, Jiaqi Jiang, and Hao He. "A Kalman Filter-based Method for Measuring the Spacing of Tiny Parallel Capacitor Plates." Journal of Physics: Conference Series 2480, no. 1 (2023): 012019. http://dx.doi.org/10.1088/1742-6596/2480/1/012019.

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Abstract The method uses multivibrators composed of the 555 timer as the Tiny Polar Plate Pitch Capacitive Sensor, and programs the MCU to construct a discrete Kalman filter to filter the capacitance data, and then uses the arithmetic averaging method to obtain the fluctuating capacitance values at a fixed parallel plate pitch. Then, we use the capacitance data for “state estimation.” We first update the estimate of the state variable using the estimated real data of the previous moment and the observed real data of the current moment, and then predict the real parallel plate pitch for the nex

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Hussain, Abadal Salam T., Qais H. Jeflawi, F. Malek, et al. "Integrated DC-AC Inverter for Hybrid Power System." Applied Mechanics and Materials 793 (September 2015): 252–56. http://dx.doi.org/10.4028/www.scientific.net/amm.793.252.

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A 300 W/ 50 Hz single-phase sine wave with a 555 timer IC controller was designed, simulated, implemented and tested to investigate output AC power quality. An input 12 VDC power supply, which simulates PV-Wind power source, was connected to the inverter circuit and charge-discharge energy storage was also studied. Results of simulation show that as well as the experiment result is obtained.This paper is present the advantage ofhybrid system wind &solar together in power supply system from the integration between time andlocation. It showsthe evolution of wind-solar in single-phase sine wa

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Dr.D.Lalitha Kumari, Shaik Riyaz Basha, Shaik Nafeez Taj, Gadde Viswa Deepthi, Sirigi Reddy Tejaswi Reddy, and Meghavath Likhitha. "Wireless Mobile Charging Using Inductive Coupling." International Research Journal on Advanced Engineering Hub (IRJAEH) 3, no. 05 (2025): 2388–92. https://doi.org/10.47392/irjaeh.2025.0353.

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Wireless charging technology is revolutionizing the way electronic devices are powered, offering convenience and flexibility. This project focuses on the design and implementation of a high-efficiency wireless mobile charging system using inductive coupling, capable of delivering 22W power to modern fast-charging smartphones. The system operates at a resonant frequency of 150 kHz, leveraging optimized transmitter and receiver coils to ensure maximum energy transfer efficiency. The design incorporates 555 timer, IRF540N MOSFET, LC resonant circuits and optimized coil alignment to enhance effici

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Hamid, Muhamad Fairus, Norazlan Hashim, and Ahmad Farid Abidin. "Investigation and Improvement of Self-Oscillating Electronic Ballast for Local Fluorescent Emergency Light." Advanced Materials Research 614-615 (December 2012): 1539–46. http://dx.doi.org/10.4028/www.scientific.net/amr.614-615.1539.

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This paper presents an analysis and improvement of self-oscillation electronic ballast for local emergency light. The improvement circuit has been presented by replacing the original BJTs with MOSFETs as a switching device. Also, 555-timer has been used to drive the MOSFETs instead of the ballast feedback in the original circuit. This electronic ballast start and regulate fluorescent lamps by converting a DC supply to high ignition AC voltage by a rectifier circuit with switching frequency in the range of 20 kHz -1MHz. Operation at high frequency has two advantages; an improved efficiency and

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Fu, Xiu Hui, and Lai Bao Xu. "Design of New Metal Detector." Advanced Materials Research 328-330 (September 2011): 1431–35. http://dx.doi.org/10.4028/www.scientific.net/amr.328-330.1431.

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Metal detector is used more and more widely in the modern social life, it acquires much attention because of its powerful detection capabilities. This article introduces the design and implementation of an intelligent metal detector which is based on TMS320LF-2407.Adopt giant magneto resistive (GMR) sensor with the type of AA006-02. Describe the hardware component, software design, working principle and main functions of the system in detail. The core of the whole contains the probe design and control circuits. The probe: oscillator circuit is constituted by the 555 timer, it provide the sine

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Timothy Wijaya, Hans, Devin Pangestu, Marcellus Timothy Sutjipto, Williem Surya Widjaja, Karel Octavianus Bachri, and Tajuddin Nur. "Simulasi Sistem Pengendalian Motor Stepper dengan Metode Pulse Width Modulation." Jurnal Elektro 15, no. 1 (2024): 21–30. http://dx.doi.org/10.25170/jurnalelektro.v15i1.5120.

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This paper discusses the control of a stepper motor using Pulse Width Modulation (PWM) methods. In this paper, the author presents two designs: one using a stepper motor controller with an astable multivibrator as a pulse generator and the other utilizing a microcontroller as the pulse generator. The design of the stepper motor controller with an astable multivibrator involves using the IC timer 555 to control the stepper motor speed and a latch circuit to control the direction of the stepper motor rotation. Meanwhile, the design of the stepper motor controller with a microcontroller employs t

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Zhang, Zitai. "Design of a Crossroad Traffic Light System." Highlights in Science, Engineering and Technology 97 (May 28, 2024): 29–39. http://dx.doi.org/10.54097/gvt3cd17.

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Nowadays, the situation of traffic jams is gradually increasing, and the demand for intelligent traffic lights is increasing as well. This paper designs a crossroad traffic light based on sequential logic using NI Multisim 14.0 virtual simulation software. The design includes: using 555 timer to build a second pulse oscillator circuit which outputs clock signal. Using 74LS169 counting chip to build timing circuit. Set up state control with 74LS74D trigger. Using nixie tubes and 74LS47 decoder chips to build the timing display circuit. Finally, logic gate and LED lights are used to build the di

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R., Palanisamy, Ankit Singh Th., Ranjan Anamika, and Singh Jatin. "BLDC motor driven electric skateboard using SVPWM." International Journal of Electrical and Computer Engineering (IJECE) 10, no. 1 (2020): 711–18. https://doi.org/10.11591/ijece.v10i1.pp711-718.

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Several problems are faced by today’s generation. One of them is the increase in pollution in our everyday life. Each of us can play a part in reducing this by using some environmentally friendly method such as cycles which requires mechanical force. Another way to accomplish this is by using electricity to produce this mechanical force i.e. electric motor. In this paper BLDC motor driven electric skateboard is designed with mathematical calculation, verified with simulation and developed as a experimental setup.

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Umale,, Virend. "Hardware Realization of Prototype of Impulse Voltage Generator." INTERNATIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 09, no. 05 (2025): 1–9. https://doi.org/10.55041/ijsrem46859.

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ABSTRACT Marx turbines can produce high-voltage pulses using multiple, comparable tiers that operate at a fraction of the full output voltage Every Marx degree involves a high-voltage transfer and a network-forming condenser or pulse. Without the use of a step-up transformer, which restricts the number of instances of pulse upward thrust and reduces tool performance. Marx turbines live tight, and these switches are typically spark gaps, resulting in low repetition charges. Developing cheap, durable, long-lived, high-voltage Marx mills which tend to pulse excessively repeated charges is facilit

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Paul Erungworo Okayim and Engr. Anthony Aluamaka. "Design and construction of cellular phone calling detector." World Journal of Advanced Engineering Technology and Sciences 3, no. 1 (2021): 034–40. http://dx.doi.org/10.30574/wjaets.2021.3.1.0047.

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Cellular phone detector is an electronic device that when placed some few centimeters away from a mobile phone pulse-blink by a way of lighting a light emitting diode (LED) whenever a call is made to the phone. The ability of the detector to successfully indicate a light on the LED is highly dependent on the distance between the phone and the detector. Accordingly, there is need to improve the distance of separation. The aim of this research project is to design and construct a device that when placed a few centimeters away from a phone lights up a light emitting diode (LED). The signal detect

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Sadiq, Muhammad. "Design and Simulation of a 2KVA Inverter with an Overload Protector." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (2021): 5144–50. http://dx.doi.org/10.22214/ijraset.2021.36120.

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In this research, the design and simulation of 2000VA inverter is presented. The method implemented for the design was the d.c. – a.c. inverter topologies. The d.c. – a.c. inverter circuit made use of a 555 timer, to digitally pulse the transistors on the inverter side, and the oscillating circuit, to drive the inverter. The system consists of the main inverter stage and the charging unit. These units are further subdivided into different stages. The main inverter performs the basic operation of converting the input d.c. voltage from the battery into an a.c voltage. The charging unit contains

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Jimada-Ojuolape, Bilkisu, Oluwafunto Spencer, and Monsurat Omolara Balogun. "Development of a GSM based Vehicle Demobilizer and Tracking System." ABUAD Journal of Engineering Research and Development (AJERD) 6, no. 2 (2023): 167–75. http://dx.doi.org/10.53982/ajerd.2023.0602.16-j.

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Vehicle hijacking remains a pervasive global issue, posing heightened risks, especially when owners face armed hijackers. Concurrently, the disposal of old mobile phones contributes significantly to the escalating electronic waste (e-waste) challenge, emphasizing the imperative of responsible recycling practices. Addressing these concerns, this paper introduces a GSM-based vehicle demobilizer and tracking system, utilizing a cost-effective mobile phone connected to the device through a SIM card and operating with an NE 555 timer IC in bistable mode. In the event of a hijacking, a call to the m

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