Artigos de revistas: "Electronic interface circuits"

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Manukyan, Vahram K. "Software applications in modeling of physical processes in radio engineering and electronics in the context of distance learning". Physics of Wave Processes and Radio Systems 24, n.º 1 (6 de maio de 2021): 89–97. http://dx.doi.org/10.18469/1810-3189.2021.24.1.89-97.

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This article examines the existing software applications for electronic circuit prototyping that can help evaluate the operation of the entire circuit based on specified parameters and find the best options. Using the TAC application and the Arduino library components, projects and instructions for creating and testing electronic circuits were developed. The resulting application was tested for capabilities and efficiency. The interface design and settings were also assessed to determine whether they simulate real conditions. The functionality of TAC application made it possible to generate alternate circuits. The results of software testing showed that using the application speeds up the learning process significantly when compared to traditional methods and helps eliminate problems that may emerge when designing and assembling circuits. The application may be useful in designing complex electronic circuits and developing teaching aids for students in technical fields.

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Yun, Eun Jeong, Jong Tae Park e Chong Gun Yu. "An maximum power point tracking interface circuit for low-voltage DC-type energy harvesting sources". Bulletin of Electrical Engineering and Informatics 11, n.º 6 (1 de dezembro de 2022): 3108–18. http://dx.doi.org/10.11591/eei.v11i6.4124.

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This paper presents a maximum power point tracking (MPPT) interface circuit for low-voltage DC-type energy harvesting sources such as light and thermal energy. Most energy harvesting systems used in miniature-sized sensor systems require start-up circuits because the output voltages of small-sized energy transducers are very low and not enough to directly power electronic systems. The proposed interface circuit is driven directly by the low output voltages of small size energy transducers, eliminating the need for complex start-up circuitry. A simple MPPT controller with the fractional open-circuit voltage (FOCV) method is designed and fabricated in a 65-nm complementary metal oxide semiconductor (CMOS) process. Measurement results show that the designed circuit can track the MPP voltage even in the presence of the open-circuit voltage fluctuations and can operate properly at operating voltages as low as 0.3 V. The interface circuit achieves a peak power efficiency of 97.1% and an MPPT accuracy of over 98.3%.

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Mohammed, Amani, e Busara Amidu. "Enhanced circuit topologies for maximizing power output in piezoelectric energy harvesters". i-manager's Journal on Circuits and Systems 12, n.º 2 (2024): 19. https://doi.org/10.26634/jcir.12.2.21731.

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Piezoelectric energy harvesting has gained significant attention for powering small-scale electronic devices by converting mechanical vibrations into electrical energy. However, the electrical interface plays a crucial role in maximizing power transfer efficiency. This paper explores optimized circuit topologies, particularly the use of inductors to mitigate capacitive impedance effects and enhance power output. A comparative analysis of Simple Resistive Load (SRL), Inductive Load (IL), and AC-DC converter circuits is conducted, both numerically and experimentally. Results indicate that inductive circuits significantly improve power output by reducing the negative reactance of piezoelectric harvesters. The findings contribute to the development of more efficient self-powered systems for wireless sensors and low-energy electronics.

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Liew Hui Fang, Rosemizi Abd Rahim, Muhammad Izuan Fahmi, Junita Mohd Nordin e Aini Syuhada Md Zain. "Review of Active Circuit and Passive Circuit Techniques to Improve the Performance of Highly Efficient Energy Harvesting Systems". Journal of Advanced Research in Applied Sciences and Engineering Technology 31, n.º 1 (13 de junho de 2023): 271–90. http://dx.doi.org/10.37934/araset.31.1.271290.

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In piezoelectric energy harvesting systems, energy harvesting circuits are the interface between piezoelectric devices and electrical loads. The conventional view of this interface is based on the concept of impedance matching. In fact, in the power supply circuit can also apply as an electrical boundary conditions, such as voltage and charge, to piezoelectric devices for each energy conversion cycle. The major drawback of piezoelectric power harvesting have low-power relationships in systems within (in the range of μW to mW), then system also have significantly reduced any potential losses in circuits that make up the EH system, whereas other condition into careful selection of circuits and components can enhanced the energy harvesting performance and electricity consumption. In the study of energy harvesting systems, it is an energy harvesting system approach that using active and passive electronic circuit to control voltage and or charge on piezoelectric devices as proposed and review to mechanical inputs for optimized energy conversion. Several factors in the practical limitation of active and passive energy consumption, due to device limitations and the power efficiency of electronic circuits, will be introduced and have played an important role into to enhance optimum and increase efficiency of energy harvesting system.

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Goeritno, Arief, e Ika Setyawibawa. "An Electronic Device Reviewed by Diagnosing on the Modules Embodiment". International Journal of Electronics and Communications Systems 1, n.º 2 (28 de dezembro de 2021): 41–55. http://dx.doi.org/10.24042/ijecs.v1i2.10383.

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An electronic device with various purposes needs in-depth study from the very beginning of the idea, before getting the final product. It relates to an essential role in providing user's infrastructure and service. The research objectives are to obtain the electronic circuits, modules, and devices by integrating the wiring. The research methods are conducted in the form of designing, manufacturing, assembling, and diagnosing. Designing stage is to obtain several electronic circuits as a liaison and the manufacturing stage to obtain the printed circuit board. The assembling stage is to obtain the gateway boards which controlled by the Arduino modules and diagnosing stage to obtain the interface device for communicating (IDC) is formed by integrating the wiring. Integrating several electronic circuits, modules, and devices have resulted in an IDC. Operating the IDC uses two different systems, i.e. from the telephony system to the radio-frequency system or vice versa with a half-duplex mechanism.

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Boni, Andrea, Michele Caselli, Alessandro Magnanini e Matteo Tonelli. "CMOS Interface Circuits for High-Voltage Automotive Signals". Electronics 11, n.º 6 (21 de março de 2022): 971. http://dx.doi.org/10.3390/electronics11060971.

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The acquisition of high-voltage signals from sensors and actuators in an internal-combustion engine is often required for diagnostic purposes or in the case of conversion to alternative fuels, such as hydrogen, natural gas, or biogas. The integration of electronic interfaces and acquisition circuits in a single device provides benefits in terms of component-count reduction and performance. Nonetheless, the high voltage level of the involved signals makes on-chip design challenging. Additionally, the circuits should be compatible with the CMOS technology, with limited use of high-voltage options and a minimum number of off-chip components. This paper describes the design and the implementation in 350 nm CMOS technology of electronic interfaces and acquisition circuits for typical high-voltage signals of automotive context. In particular, a novel co-design of dedicated voltage clamps with electro-static discharge (ESD) protections is described. The proposed circuits require only a single off-chip resistor, and they are suitable for the acquisition of signals with peak voltages up to 400 V. The measured performance of the silicon prototypes, in the [−40 °C, +125 °C] temperature range, make the proposed electronic interfaces suitable for the automotive domain.

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Žemva, Andrej, Andrej Trost e Baldomir Zajc. "Educational Programmable System for Prototyping Digital Circuits". International Journal of Electrical Engineering & Education 35, n.º 3 (julho de 1998): 236–44. http://dx.doi.org/10.1177/002072099803500306.

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In this paper, we present an educational programmable system for prototyping digital circuits. The system is composed of the PC and the prototyping board composed of 3 FPGAs. PC is used for designing a digital circuit, programming the FPGAs, automatic generation of the interface logic and hardware verification of the designed circuit.

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Polachan, Kurian, Baibhab Chatterjee, Scott Weigand e Shreyas Sen. "Human Body–Electrode Interfaces for Wide-Frequency Sensing and Communication: A Review". Nanomaterials 11, n.º 8 (23 de agosto de 2021): 2152. http://dx.doi.org/10.3390/nano11082152.

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Several on-body sensing and communication applications use electrodes in contact with the human body. Body–electrode interfaces in these cases act as a transducer, converting ionic current in the body to electronic current in the sensing and communication circuits and vice versa. An ideal body–electrode interface should have the characteristics of an electrical short, i.e., the transfer of ionic currents and electronic currents across the interface should happen without any hindrance. However, practical body–electrode interfaces often have definite impedances and potentials that hinder the free flow of currents, affecting the application’s performance. Minimizing the impact of body–electrode interfaces on the application’s performance requires one to understand the physics of such interfaces, how it distorts the signals passing through it, and how the interface-induced signal degradations affect the applications. Our work deals with reviewing these elements in the context of biopotential sensing and human body communication.

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Stornelli, Vincenzo, Leonardo Pantoli, Gianluca Barile, Alfiero Leoni e Emanuele D’Amico. "Silicon Photomultiplier Sensor Interface Based on a Discrete Second Generation Voltage Conveyor". Sensors 20, n.º 7 (5 de abril de 2020): 2042. http://dx.doi.org/10.3390/s20072042.

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This work presents the design of a discrete second-generation voltage conveyor (VCII) and its capability to be used as electronic interface for silicon photomultipliers. The design addressed here exploits directly at the transistor level, with commercial components, the proposed interface; the obtained performance is valuable considering both the discrete elements and the application. The architecture adopted here realizes a transimpedance amplifier that is also able to drive very high input impedance, as usually requested by photons detection. Schematic and circuital design of the discrete second-generation voltage conveyor is presented and discussed. The complete circuit interface requires a bias current of 20 mA with a dual 5V supply voltage; it has a useful bandwidth of about 106 MHz, and considering also the reduced dimensions, it is a good candidate to be used in portable applications without the need of high-cost dedicated integrated circuits.

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Ning, Yongkai, Jiangfei Guo, Yangchen Jia, Duosheng Li e Guiliang Guo. "A Fast Interface Circuit for the Measurement of 10 Ω to 1 GΩ Resistance". Electronics 12, n.º 18 (8 de setembro de 2023): 3796. http://dx.doi.org/10.3390/electronics12183796.

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In this work, an interface circuit applied to resistive gas or chemical sensors is proposed. The interface circuit includes a detection front-end, a single-end to differential circuit, a successive approximation analog-to-digital converter (SAR ADC), and some reference auxiliary circuits. In detection front-end circuits, mirrored currents in a current mirror usually differ by several orders of magnitude. In order to ensure that the current mirror can be copied accurately, this work uses a negative feedback structure consisting of an operational amplifier and an NMOS tube to ensure that the VDS of the current mirroring tube remains consistent. Simulation results show that the replication error of the current mirror is 0.015%. The proposed interface circuit has a detection range of 10 Ω to 1 GΩ with a relative error of 0.55%. The current multiplication or divided technique allows the interface circuit to have a high sampling frequency of up to 10 kHz. The proposed circuit is based on a 180 nm CMOS process with a chip area of 0.308 mm2 (723 μm ∗ 426 μm). The power consumption of the whole interface circuit is 3.66 mW when the power supply voltage is 1.8 V.

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Xu, Yunsong, Shen Yin, Jinyong Yu e Hamid Reza Karimi. "Design of a TFT-LCD Based Digital Automobile Instrument". Mathematical Problems in Engineering 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/549790.

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The traditional mechanical instrument lacks the ability to satisfy the market with characters of favorable compatibility, easy upgrading, and fashion. Thus the design of a TFT-LCD (thin film transistor-liquid crystal display) based automobile instrument is carried out. With a 7-inch TFT-LCD and the 32-bit microcontroller MB91F599, the instrument could process various information generated by other electronic control units (ECUs) of a vehicle and display valuable driving parameters on the 7-inch TFT-LCD. The function of aided parking is also provided by the instrument. Basic principles to be obeyed in circuits designing under on-board environment are first pointed out. Then the paper analyzes the signals processed in the automobile instrument and gives an introduction to the sampling circuits and interfaces related to these signals. Following this is the functional categorizing of the circuit modules, such as video buffer circuit, CAN bus interface circuit, and TFT-LCD drive circuit. Additionally, the external EEPROM stores information of the vehicle for history data query, and the external FLASH enables the display of high quality figures. On the whole, the accomplished automobile instrument meets the requirements of automobile instrument markets with its characters of low cost, favorable compatibility, friendly interfaces, and easy upgrading.

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Goeritno, Arief, Ika Setyawibawa e Dwi Suhartono. "Designing a microcontroller-based half-duplex interface device drove by the touch-tone signal". JURNAL INFOTEL 13, n.º 4 (9 de dezembro de 2021): 205–15. http://dx.doi.org/10.20895/infotel.v13i4.712.

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The interface device for communicating (IDC) as a bridge for the merger between two different systems based on different protocols and standards can be made of several electronic modules. The two Arduino boards (UNO R3 and MEGA2560 R3) have been constructed as the electronic modules of a gateway become a haft-duplex IDC, and are driven by the touch-tone signal. The research objectives, i.e., assembling some of the hardware for the embodiment of the adapter system, making a program structure, and performing a test of the IDC system. The haft-duplex IDC has been carried out by integrating all components by wiring to form an embedded system. Then, programming the microcontroller modules based on the Arduino software is carried outin six stages. Finally, the simulation test with the provision of conditions is carried out and obtained of six conditions for (i) the circuit of ring detection, (ii) the circuit of voice-operated transmit, (iii) the circuit off/on the hook of the telephone module, (iv) the circuit of tone decoder, (v) dial-up telephone numbers via push buttons and switching IC circuits, and (vi) the circuits of voice recording and storage in the form to playback. The test's success with six conditions has been an indication that the microcontroller-based IDC system is functioning as expected. Completing, the conclusion, and recommendationsrelated to measurement on the various purposes and the real conditions for the half-duplex interface adapter can be implemented.

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Rifai, Afaf Fadhil, Wahyudi Purnomo e Revirda Eka Putri. "RANCANG BANGUN DC TO DC BUCK CONVERTER DENGAN SISTEM KENDALI PI PADA NI ELVIS II DAN ANTARMUKA BERBASIS LABVIEW". JTT (Jurnal Teknologi Terapan) 7, n.º 2 (11 de outubro de 2021): 129. http://dx.doi.org/10.31884/jtt.v7i2.333.

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Understanding basic concepts is an important thing in electronics, especially regarding the teaching aid of power electronic components. Given the need for students to study the model of electronic schematic with feedback controller, a media that can support this is needed. One of the developments in component technology and electronic circuits that can be studied is the DC voltage conversion, namely the DC to DC buck converter. This teaching aid model uses software, namely LabVIEW and the control and data acquisition hardware, namely NI ELVIS II. DC to DC buck converter schematic that can reduce the variable output voltage with a value range of 6 - 18VDC from an input voltage of 24VDC. PI feedback controller testing in the system experiment resulted in a difference of 0.1567% error using the PI controller parameter of Kp = 3.00 and Ti = 0.01. The test results with the PI controller show the expected response and can be applied to the buck converter circuit system. Testing the interface of the buck type DC to DC converter system is considered feasible as a learning aid with an overall interface quality value of 83.8% with student responds.

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Hasegawa, Daiki, Yuto Takeshita, Feng Li, Kyosuke Sano, Masamitsu Tanaka, Taro Yamashita e Akira Fujimaki. "Demonstration of Interface Circuits Between Half- and Single- Flux- Quantum Circuits". IEEE Transactions on Applied Superconductivity 31, n.º 5 (agosto de 2021): 1–4. http://dx.doi.org/10.1109/tasc.2021.3072846.

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Petrović, Predrag B., Maria Vesna Nikolić e Mihajlo Tatović. "New Electronic Interface Circuits for Humidity Measurement Based on the Current Processing Technique". Measurement Science Review 21, n.º 1 (1 de fevereiro de 2021): 1–10. http://dx.doi.org/10.2478/msr-2021-0001.

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Abstract The paper describes a new electronic conditioning circuit based on the current-processing technique for accurate and reliable humidity measurement, without post-processing requirements. Pseudobrookite nanocrystalline (Fe2TiO5) thick film was used as capacitive humidity transducer in the proposed design. The interface integrated circuit was realized in TSMC 0.18 μm CMOS technology, but commercial devices were used for practical realization. The sensing principle of the sensor was obtained by converting the information on environment humidity into a frequency variable square-wave electric current signal. The proposed solution features high linearity, insensitivity to temperature, as well as low power consumption. The sensor has a linear function with relative humidity in the range of Relative Humidity (RH) 30-90 %, error below 1.5 %, and sensitivity 8.3 x 1014 Hz/F evaluated over the full range of changes. A fast recovery without the need of any refreshing methods was observed with a change in RH. The total power dissipation of readout circuitry was 1 mW.

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LITOVSKI, VANČO B., MIONA V. ANDREJEVIĆ, PREDRAG M. PETKOVIĆ e ROBERT I. DAMPER. "ANN APPLICATION TO MODELING OF THE D/A AND A/D INTERFACE FOR MIXED-MODE BEHAVIORAL SIMULATION". Journal of Circuits, Systems and Computers 13, n.º 01 (fevereiro de 2004): 181–92. http://dx.doi.org/10.1142/s0218126604001325.

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Artificial neural networks are applied for modeling the input and output circuits of the digital part of the digital–analog and analog–digital interface, respectively, in CMOS mixed-mode circuits. The generalization property of the neural networks is exploited to apply the models in a set of previously unknown situations, the most important being loading the model generated from the unloaded circuit. The models developed are applicable in mixed-signal behavioral simulations.

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SINGH, ADIT D. "Four-valued interface circuits for NMOS VLSI". International Journal of Electronics 63, n.º 2 (agosto de 1987): 269–79. http://dx.doi.org/10.1080/00207218708939128.

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Sansen, Willy. "Biomedical and Sensor Interface Circuits [Conference Reports]". IEEE Solid-State Circuits Magazine 6, n.º 2 (2014): 76–77. http://dx.doi.org/10.1109/mssc.2014.2316060.

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Kim, Sungmin. "Development of a computer-aided design software for smart garments". International Journal of Clothing Science and Technology 29, n.º 6 (6 de novembro de 2017): 845–56. http://dx.doi.org/10.1108/ijcst-02-2017-0011.

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Purpose The purpose of this paper is to develop a computer-aided design software for smart garments. Design/methodology/approach A circuit design software with graphical user interface and an automatic Arduino code generator has been developed. Findings Complex circuit design for smart garment can be performed using an intuitive graphical user interface. Sophisticated C codes for activating the smart garment can be generated without in-depth knowledge of C language and electronic devices. Research limitations/implications Circuit wiring is performed manually. Further work will be focused on the generation of an algorithm that can find the overlap-free design of complex circuit. Practical implications Smart garments with complex functions are expected to be designed more easily without in-depth knowledge of electronic circuits and computer programming. Social implications Researchers of smart garment will be able to concentrate on the actual function of smart garments rather than coding the complex C programs. Originality/value This is the first computer-aided smart garment design software that can not only design the circuit but also generate the computer codes.

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Kintzios, Spyridon. "Bioelectric Sensors: On the Road for the 4.0 Diagnostics and Biomedtech Revolution". Biosensors 10, n.º 8 (11 de agosto de 2020): 96. http://dx.doi.org/10.3390/bios10080096.

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Heckingbottom, R. "Perspectives in surface and interface analysis for electronic devices and circuits". Surface and Interface Analysis 9, n.º 5 (julho de 1986): 265–73. http://dx.doi.org/10.1002/sia.740090502.

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Hidalgo-López, José A., Óscar Oballe-Peinado, Julián Castellanos-Ramos e José A. Sánchez-Durán. "Two-Capacitor Direct Interface Circuit for Resistive Sensor Measurements". Sensors 21, n.º 4 (22 de fevereiro de 2021): 1524. http://dx.doi.org/10.3390/s21041524.

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Direct interface circuits (DICs) avoid the need for signal conditioning circuits and analog-to-digital converters (ADCs) to obtain digital measurements of resistive sensors using only a few passive elements. However, such simple hardware can lead to quantization errors when measuring small resistance values as well as high measurement times and uncertainties for high resistances. Different solutions to some of these problems have been presented in the literature over recent years, although the increased uncertainty in measurements at higher resistance values is a problem that has remained unaddressed. This article presents an economical hardware solution that only requires an extra capacitor to reduce this problem. The circuit is implemented with a field-programmable gate array (FPGA) as a programmable digital device. The new proposal significantly reduces the uncertainty in the time measurements. As a result, the high resistance errors decreased by up to 90%. The circuit requires three capacitor discharge cycles, as is needed in a classic DIC. Therefore, the time to estimate resistance increases slightly, between 2.7% and 4.6%.

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Christensen, C. Paul. "Miniature MEMS Interface Circuits Using Nanoparticle Conductors and Embedded Components". Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2011, DPC (1 de janeiro de 2011): 001674–706. http://dx.doi.org/10.4071/2011dpc-wp22.

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MEMS devices are typically used in subsystems comprising the MEMS component and the infrastructure required to support it. This infrastructure – signal processing, communication interface, power supply, and system packaging – often determines the size and cost of the subsystem. This paper describes a new approach to fabrication of highly miniaturized electronic circuitry and packaging that is well-suited to interfacing and support of MEMS components. The fabrication process utilizes nanoparticle silver conductors to connect miniature embedded surface-mount components. Interconnect conductors are produced by filling laser-ablated channels with nanoparticle silver pastes that cure at low temperatures. This laser-based approach allows production of very fine line interconnect structures (< 10 micron trace widths), which simplifies conductor routing and reduces layer count. Avoiding subtractive copper processes significantly reduces capital equipment and facilities costs and minimizes waste streams. After interconnection, the component assembly is encapsulated in a thermally conductive epoxy to produce a robust, stackable electronic module. Techniques also have been developed for stacking and interconnection of these circuit modules to form 3D electronic systems of nearly arbitrary form factor. All fabrication processes are CAD/CAM controlled, providing fast adaptability to design change and a smooth transition to production in both small and large volumes. The new fabrication technology has been applied to the challenge of miniaturization of wireless sensor nodes with the goal of constructing complete nodes of sugar-cube size (including an advanced battery). Node form factor can be easily adapted to specific applications.

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Severo, Lucas Compassi, e Wilhelmus Adrianus Maria Van Noije. "A Generic Test Board for the Electrical Characterization of ULP and ULV Fully-Differential Integrated Analog Circuits". Journal of Integrated Circuits and Systems 14, n.º 3 (27 de dezembro de 2019): 1–7. http://dx.doi.org/10.29292/jics.v14i3.90.

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The characterization of ultra-low power (ULP) fully-differential/balanced amplifiers and active filters is challenging due to the incompatibility with the classical single-ended (SE) and 50 Ω impedance equipment. Interface circuits between the device under test (DUT) and the equipment are needed to perform the signal conversion and to work as voltage buffers. In this work, we propose a generic test circuits to be used in the characterization of ULP and ultra-low voltage (ULV) analog circuits. The test board includes balun transformers to the signal conversion, a high input impedance and low capacitance output driver and voltage regulators to provide the target DUT supply voltage. The characterization of the proposed PCB demonstrates a bandwidth of 30 MHz, output driver input impedance of 5 MΩ with 2.5 pF capacitance and low input-referred noise. The proposed circuit was applied to the electrical characterization of two fully-differential ULV and ULP analog integrated circuits.

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Ben Ammar, Meriam Ben, Salwa Sahnoun, Ahmed Fakhfakh, Christian Viehweger e Olfa Kanoun. "Self-Powered Synchronized Switching Interface Circuit for Piezoelectric Footstep Energy Harvesting". Sensors 23, n.º 4 (6 de fevereiro de 2023): 1830. http://dx.doi.org/10.3390/s23041830.

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Piezoelectric Vibration converters are nowadays gaining importance for supplying low-powered sensor nodes and wearable electronic devices. Energy management interfaces are thereby needed to ensure voltage compatibility between the harvester element and the electric load. To improve power extraction ability, resonant interfaces such as Parallel Synchronized Switch Harvesting on Inductor (P-SSHI) have been proposed. The main challenges for designing this type of energy management circuits are to realise self-powered solutions and increase the energy efficiency and adaptability of the interface for low-power operation modes corresponding to low frequencies and irregular vibration mechanical energy sources. In this work, a novel Self-Powered (SP P-SSHI) energy management circuit is proposed which is able to harvest energy from piezoelectric converters at low frequencies and irregular chock like footstep input excitations. It has a good power extraction ability and is adaptable for different storage capacitors and loads. As a proof of concept, a piezoelectric shoe insole with six integrated parallel piezoelectric sensors (PEts) was designed and implemented to validate the performance of the energy management interface circuit. Under a vibration excitation of 1 Hz corresponding to a (moderate walking speed), the maximum reached efficiency and power of the proposed interface is 83.02% and 3.6 mW respectively for the designed insole, a 10 kΩ resistive load and a 10 μF storage capacitor. The enhanced SP-PSSHI circuit was validated to charge a 10 μF capacitor to 6 V in 3.94 s and a 1 mF capacitor to 3.2 V in 27.64 s. The proposed energy management interface has a cold start-up ability and was also validated to charge a (65 mAh, 3.1 V) maganese dioxide coin cell Lithium battery (ML 2032), demonstrating the ability of the proposed wearable piezoelectric energy harvesting system to provide an autonomous power supply for wearable wireless sensors.

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Chen, Q., J. He, W. Zhou e Q. Su. "Surge Protection for Interface Circuits of Communication System". IEEE Power Engineering Review 22, n.º 8 (agosto de 2002): 69. http://dx.doi.org/10.1109/mper.2002.4312514.

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Zhuan, Zhang, e Wu Xunwei. "The quaternary interface technique in ECL integrated circuits". Journal of Electronics (China) 9, n.º 1 (janeiro de 1992): 40–44. http://dx.doi.org/10.1007/bf02778591.

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Chen, Hao, Chao Long Ou, Fu Sheng Chen, Jie Xiang, Xian Yong Xu, Wei Neng Wang e Hai Yuan Wang. "Research on the Secondary Interface of Electronic Transformers in Smart Substation". Applied Mechanics and Materials 710 (janeiro de 2015): 53–59. http://dx.doi.org/10.4028/www.scientific.net/amm.710.53.

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According to the requirements of smart substation metering system, a digital interface based on IEC 61850 specification is given, then the functional model of the merging unit is discussed. Meanwhile, according to the actual situation, the author proposes an analog output interface, in order to fit with traditional substation secondary equipment. Then the solution based on TMS320F28335 digital control platform is described, for which the voltage control module of the software and hardware circuits are discussed in detail. The experimental data shows that the proposed merging unit and analog voltage output interface can meet the accuracy standard of electronic transformer in the smart substation.

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Liu, Qing, Heming Wang, Fangxu Lyu, Geng Zhang e Dongbin Lyu. "A Low-Latency, Low-Jitter Retimer Circuit for PCIe 6.0". Electronics 12, n.º 14 (17 de julho de 2023): 3102. http://dx.doi.org/10.3390/electronics12143102.

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As the PCIe 6.0 specification places higher requirements on signal integrity and transmission latency, it becomes especially important to improve signal transmission performance at the physical layer of the transceiver interface. Retimer circuits are a key component of high-speed serial interfaces, and their delay and jitter size directly affect the overall performance of PCIe. For the typical retimer circuit with large-latency and low-jitter performance, this paper proposes a low-latency and low-jitter Retimer circuit based on CDR + PLL architecture for PCIe 6.0, using a jitter-canceling filter circuit to eliminate the frequency difference between the retiming clock and data, reduce the retiming clock jitter, and improve the quality of Retimer output data. The data are sampled using the retiming clock and then output, avoiding the problem of large penetration latency of typical retimer circuits. The circuit is designed using the CMOS 28 nm process. Simulation results show that when 112 Gbps PAM4 data are input to the retimer circuit, the Retimer penetration latency is 27.3 ps, which is 83.5% lower than the typical Retimer structure; the output jitter data are 741 fs, a 31.4% reduction compared to the typical retimer structure.

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Cui, Rongrong. "Design of New LED Curtain Wall Controller and Its Effect in Architectural Decoration". Journal of Nanoelectronics and Optoelectronics 18, n.º 6 (1 de junho de 2023): 711–17. http://dx.doi.org/10.1166/jno.2023.3446.

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In recent years, LED with high brightness or ultra-high brightness has appeared. Because of its low production cost, it has been widely used. Compared with other display media, LED has the advantages of rich display content, wide dynamic range, vivid picture, no pollution, long life, etc., so it is used in building curtain wall facade decoration. This research designs LED curtain wall control system, the use of SD600 chip dimming control of LED, the use of absorbing current mode LED drive, further design of single SD600 chip application circuit, multi-SD600 chip application circuit. LED curtain wall display text need to design the corresponding graphic processing hardware, the hardware is composed of ARM microprocessor LPC2210 and its related peripheral circuits. The core chip of the LPC2210 processor chip needs 1.8 V working voltage, and the I/O interface voltage is 3.3 V, so it is necessary to design the corresponding power circuit; The system clock is adjusted through the internal PLL circuit to make the system run faster and design its crystal oscillator circuit; The power monitoring chip CAT1025JI-30 is adopted to build reset circuit, 20-pin interface type JTAG interface circuit; It is considered that the UARTO interface can’t be directly connected with the RS232 interface of PC, the MAX3232 chip is introduced for level conversion, and the serial interface circuit based on LPC2210 is designed. In the experiment, the new technology is used for outdoor lighting LED curtain wall construction, and the development tool uses the ADS1.2 provided by ARM company. The μC/OS-II embedded operating system is introduced to control the graphic processing hardware resources, reading the file from the SD card, and writing the text file and BMP file into the three-dimensional array, the corresponding text and pattern effect are displayed in the LED curtain wall.

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Tarutani, Y., Y. Ishimaru, H. Wakana, M. Horibe, H. Sugiyama, S. Adachi, Y. Oshikubo et al. "Fabrication of interface elements for oxide RSFQ circuits". IEEE Transactions on Appiled Superconductivity 13, n.º 2 (junho de 2003): 413–16. http://dx.doi.org/10.1109/tasc.2003.813882.

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Rohwerder, M., e M. Stratmann. "Surface Modification by Ordered Monolayers: New Ways of Protecting Materials Against Corrosion". MRS Bulletin 24, n.º 7 (julho de 1999): 43–47. http://dx.doi.org/10.1557/s0883769400052696.

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Metal/polymer composites are used in numerous technical applications. For example, polymer coatings on metal surfaces are used for corrosion protection, metal films on polymers inhibit static buildup, and polymers between two metals can serve as a “glue” for connecting materials that cannot be welded. Polymer/metal composites also play an important role in modern electronics. In condensers, polymers serve as insulating layers between metallic leads and are used to encapsulate entire electronic circuits. In all circumstances, interfaces are formed between the two different materials, and since the chemistry and structure change abruptly, interfacial failure is frequently observed.The cause of failure may just be mechanical (e.g., shrinkage of the polymer during curing), or the interface stability may be degraded by attack of aggressive species, resulting in delamination. More specifically, loss of adhesion is directly caused by interfacial electrochemical reactions that nucleate at a defect and progress into intact regions of the interface. This occurs for encapsulated electronic parts in humid atmospheres as well as for lacquers on automotive parts.Thus the investigation of corrosion reactions at a buried interface is an important area of research, but it is made very difficult by the fact that most electrochemical methods do not give information on localized reaction kinetics at a buried (metal/polymer) interface. This situation has changed with the invention and development of the scanning Kelvin probe (SKP). This method allows, for the first time, local analysis of reactions occurring at a buried metal/polymer interface. Based on the results obtained with the SKP, a detailed reaction model for the delamination process has been developed. This understanding has led to the development of new approaches that protect the interface from delamination. The idea is to chemically modify the interface using Afunctional molecules that promote adhesion between metal and polymer surfaces.

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Lin, Pujian, Yecheng Yang, Yujia Gong, Anqi Zheng, Tiaoyang Li, Qianlan Hu, Yanqing Wu, Lian-Mao Peng e Jiahao Kang. "9‐2: Compact Model for Thin‐Film Transistors with Capacitance Frequency Dispersion". SID Symposium Digest of Technical Papers 55, S1 (abril de 2024): 84–87. http://dx.doi.org/10.1002/sdtp.17003.

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In thin‐film transistors (TFTs), issues such as interface states may lead to unstable device performance and complex physical phenomena, such as frequency dispersion effects. This paper establishes a three‐terminal TFT compact model capable of replicating capacitance dispersion phenomena and directly applying to SPICE circuit simulations. The model decomposes the transistor's capacitance frequency response into the superposition of responses from different electronic states. The different electronic states are emulated by parallel branches, each composed of voltage‐dependent capacitance and resistance connected in series. The Powell algorithm is employed to achieve automatic parameter optimization. The model is generic for TFTs and successfully replicates capacitance dispersion phenomena in carbon nanotube (CNT) and indium‐gallium‐zinc‐oxide (IGZO) thin‐film transistors. This work provides insights to the circuit behavior of display driver circuits at high frequencies and improving circuit reliability.

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Amirnudin, Amirul Adlan, Farahiyah Mustafa, Anis Maisarah Mohd Asry e Sy Yi Sim. "Vibration Based Energy Harvesting Interface Circuit using Diode-Capacitor Topologies for Low Power Applications". International Journal of Power Electronics and Drive Systems (IJPEDS) 8, n.º 4 (1 de dezembro de 2017): 1943. http://dx.doi.org/10.11591/ijpeds.v8.i4.pp1943-1947.

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<span>A battery-less energy harvesting interface circuit to extract electrical energy from vibration has been proposed in this paper for low power applications. The voltage doubler integrated with DC – DC boost converter circuits were designed and simulated using MultiSIM software. The circuit was then fabricated onto a printed circuit board (PCB), using standard fabrication process. The Cockcroft Walton doubler was chosen to be implemented in this study by utilizing diode-capacitor topologies with additional RC low pass filter. The DC – DC boost converter has been designed using a CMOS step -up DC – DC switching regulators, which are suitable for low input voltage system. The achievement of this interface circuit was able to boost up the maximum voltage of 5 V for input voltage of 800 mV.</span>

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Bourdeu D’aguerre, Philippe. "Interface Solo 1400 — testeur de circuits intégrés GR 115". Annales Des Télécommunications 46, n.º 9-10 (setembro de 1991): 547–49. http://dx.doi.org/10.1007/bf02998697.

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Paull, C. J. "A First-Year Practical Exercise in the Design and Construction of a Simple Microprocessor-Based Measurement System". International Journal of Electrical Engineering & Education 25, n.º 4 (outubro de 1988): 303–8. http://dx.doi.org/10.1177/002072098802500403.

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The paper describes a first year project introducing practical aspects of work with electronic circuits. A simple Z80-based microcontroller forms the core of the system and students themselves design the analogue interface necessary to link this to a specified transducer.

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Ohme, Bruce W., e Mark R. Larson. "Analog Component Development for 300°C Sensor Interface Applications". Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2012, HITEC (1 de janeiro de 2012): 000199–206. http://dx.doi.org/10.4071/hitec-2012-wp11.

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The development of Enhanced Geothermal Systems (EGS) for base-load electrical power generation will require electronics for sensing and control during exploration and drilling and also during production. The operating temperature environments for these applications will generally be more extreme than those encountered by electronics currently deployed for oil and gas development and production monitoring. To address this requirement, electronic components have been designed and fabricated for operation at temperatures of 300°C. These integrated circuits use silicon-on-insulator (SOI) fabrication processes to achieve high temperature operation. High-fidelity simulation models have been developed by characterization of SOI devices at 300°C. These device models were employed to design components required for the development of a down-hole orientation module. A wide-bandwidth, low-noise operational amplifier has been developed for use with MEMS accelerometer sensors. A multi-channel synchronous voltage-to-frequency converter with built-in reference and oscillators has also been developed for use with 3-axis flux-gate magnetometers. The components themselves are general purpose and could easily be used for other high-temperature sensor-interface applications. .

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OKTYABRSKY, SERGE, MICHAEL YAKIMOV, VADIM TOKRANOV, RAMA KAMBHAMPATI, HASSARAM BAKHRU, SERGEI KOVESHNIKOV, WILMAN TSAI, FENG ZHU e JACK LEE. "CHALLENGES AND PROGRESS IN III-V MOSFETs FOR CMOS CIRCUITS". International Journal of High Speed Electronics and Systems 18, n.º 04 (dezembro de 2008): 761–72. http://dx.doi.org/10.1142/s0129156408005746.

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An overview of III-V MOSFET technological challenges in comparison to well-established heterostructure-based FET technologies is presented with an emphasis on required properties and possible solutions. Possible approaches to achieve thermodynamically stable high- k gate stack with low interface trap density are reviewed, followed with our results on amorphous Si interface passivation layer (IPL) in-situ deposited on top of GaAs or strained InGaAs MOSFET channels grown by molecular beam epitaxy. Main issues of Si IPL, namely increased equivalent oxide thickness due to IPL oxidation and Si diffusion into the semiconductor channel, are addressed using an in-situ deposited HfO 2 with ultrathin (down to 0.25 nm) Si IPL and controlling its bonding state at the interface. Enhancement mode inversion-type MOSFET with HfO 2 high- k oxide is demonstrated. The device employs amorphous Si interface passivation layer, sputter-deposited high- k oxide and metal TaN gate and modulation p-doped GaAs / AlGaAs heterostructure with inversion n -channel formed at the interface with the oxide. The MOSFET with equivalent oxide thickness of 3.7 nm and long 100 μm channel have maximum DC transonductance of 0.9 mS/mm, Ion/Ioff = 2×104 (at low Ioff of 30 nA) and effective channel mobility exceeding 1000 cm2/V-s at sheet electron density <2×1012 cm-2.

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Hato, T., M. Horibe, H. Wakana, M. Hidaka e K. Tanabe. "Output Interface With Latching Driver for LTS-SFQ Circuits". IEEE Transactions on Appiled Superconductivity 15, n.º 1 (março de 2005): 1–5. http://dx.doi.org/10.1109/tasc.2004.839769.

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Qingheng Chen, Jinliang He, Wenjun Zhou e Qi Su. "Surge protection for interface circuits of communication system". IEEE Transactions on Power Delivery 18, n.º 1 (janeiro de 2003): 85–89. http://dx.doi.org/10.1109/tpwrd.2002.803695.

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ENOKI, TAKATOMO, EIICHI SANO e TADAO ISHIBASHI. "PROSPECTS OF InP-BASED IC TECHNOLOGIES FOR 100-GBIT/S-CLASS LIGHTWAVE COMMUNICATIONS SYSTEMS". International Journal of High Speed Electronics and Systems 11, n.º 01 (março de 2001): 137–58. http://dx.doi.org/10.1142/s0129156401000812.

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This paper describes the device technologies that will be instrumental in achieving 100-Gbit/s-class ultrahigh-speed lightwave communications systems and clarifies the device technology issues we must address before we can make such systems a reality. At the interface between optical and electrical units, their monolithic integration is necessary and a uni-traveling carrier photodiode (UTC-PD) enables us to simplify the interface circuits. In high-speed circuits, InP-based HEMT's and HBT's will still be key devices. Further scaling down of HEMT's and reduction of their parasitic capacitance are the major subjects to achieve 100 Gbit/s operations. For HBT's, reduction of the product of feedback capacitance and base resistance are necessary. Estimations of operation speed for basic circuits in lightwave communications systems are summarized to set targets for designing device structures.

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Fernandes, Catarina, e Irene Taurino. "Biodegradable Molybdenum (Mo) and Tungsten (W) Devices: One Step Closer towards Fully-Transient Biomedical Implants". Sensors 22, n.º 8 (15 de abril de 2022): 3062. http://dx.doi.org/10.3390/s22083062.

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Close monitoring of vital physiological parameters is often key in following the evolution of certain medical conditions (e.g., diabetes, infections, post-operative status or post-traumatic injury). The allocation of trained medical staff and specialized equipment is, therefore, necessary and often translates into a clinical and economic burden on modern healthcare systems. As a growing field, transient electronics may establish fully bioresorbable medical devices capable of remote real-time monitoring of therapeutically relevant parameters. These devices could alert remote medical personnel in case of any anomaly and fully disintegrate in the body without a trace. Unfortunately, the need for a multitude of biodegradable electronic components (power supplies, wires, circuitry) in addition to the electrochemical biosensing interface has halted the arrival of fully bioresorbable electronically active medical devices. In recent years molybdenum (Mo) and tungsten (W) have drawn increasing attention as promising candidates for the fabrication of both energy-powered active (e.g., transistors and integrated circuits) and passive (e.g., resistors and capacitors) biodegradable electronic components. In this review, we discuss the latest Mo and W-based dissolvable devices for potential biomedical applications and how these soluble metals could pave the way towards next-generation fully transient implantable electronic systems.

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Thomas, G., G. Troussel e F. Vialettes. "High-voltage technology offers new solutions for interface integrated circuits". IEEE Transactions on Electron Devices 33, n.º 12 (dezembro de 1986): 2016–24. http://dx.doi.org/10.1109/t-ed.1986.22861.

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Tsukada, Keiji, Takuya Maruizumi e Hiroyuki Miyagi. "A multiple-ISFET integrated with CMOS interface circuits". Electronics and Communications in Japan (Part II: Electronics) 71, n.º 12 (1988): 93–99. http://dx.doi.org/10.1002/ecjb.4420711211.

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Pyt, Patryk, Kacper Skrobacz, Piotr Jankowski-Mihułowicz e Mariusz Węglarski. "Textronic Capacitive Sensor with an RFID Interface". Sensors 24, n.º 12 (7 de junho de 2024): 3706. http://dx.doi.org/10.3390/s24123706.

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This article presents an innovative combination of textile electrical circuits with advanced capabilities of electronic RFID sensors, indicating the revolutionary nature of the development of textronics, which is used in various areas of life, from fashion to medicine. A review of the literature relating to the construction of textronic RFID identifiers and capacitive textronic sensors is performed. Various approaches to measuring capacity using RFID tags are discussed. This article focuses on presenting the concept of a capacitive sensor with an RFID interface, consisting of a microelectronic part and a textile part. The textile part is based on the WL4007 material, where antennas and capacitive sensors are embroidered using SPARKFUN DEV 11791 conductive thread. The antenna is a half-wave dipole designed to operate at a frequency of 860 MHZ. The microelectronic part is sewn to the textile part and consists of a microcontroller, an RFID-integrated circuit and a coupling loop, placed on the PCB. The embroidered antenna is coupled with a loop on the microelectronic module. This article focuses on presenting various designs of textronic electrodes, enabling various types of measurements. Article presents capacitance measurements of individual sensor electrodes, made using a measuring bridge and a built RFID tag. The sensors’ capacity measurement results are shown.

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Amini, Saber, e David Andrew Johns. "A Normalized Figure of Merit for Capacitive Accelerometer Interface Circuits". IEEE Transactions on Circuits and Systems II: Express Briefs 67, n.º 1 (janeiro de 2020): 19–22. http://dx.doi.org/10.1109/tcsii.2019.2901851.

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Varganova, Dina, e Roman Kolomiiets. "FEATURES OF THE ORGANIZATION OF LABORATORY WORKS IN THE STUDY OF PHYSICS OF ELECTRICAL PHENOMENA USING SOFTWARE SIMULATORS". Collection of Scientific Papers of Uman State Pedagogical University, n.º 3 (27 de setembro de 2023): 22–31. http://dx.doi.org/10.31499/2307-4906.3.2023.289873.

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The article shows the possibility of convenient use of software simulators of electric circuits in performing laboratory works in physics, theory of electric circuits and signals, and the basics of electronics. An example of studying Kirchhoffʼs laws in the NI Multisim 14 simulator as one of the simplest in terms of interface but very powerful in terms of capabilities is considered. The choice of NI Multisim is due to the fact that it is de-facto one of the industrial standards in the real design of electronic devices. Thus, students are introduced to not an educational software simulator for modeling electrical phenomena, but to industrial software that they may have to deal with as future electronics designers.The article describes the structure of a typical mini-project (laboratory work) on the study of Kirchhoff's laws, and shows that this approach to organizing training is related to the specifics of teaching students majoring in 172 – “Telecommunications and Radio Engineering”, 123 – “Computer Engineering” and 125 – “Cybersecurity”.As a result, students acquire the skills to develop and test models of electrical circuits with visualization of the results obtained, learn to use the methods of solving systems of linear equations acquired in the course of mathematics in practice. Keywords: educational technologies of distance learning; simulation of electrical circuits; analysis of processes in electrical systems; use of NI Multisim 14 software package for educational purposes; laboratory works in physics and electronics; Ohm’s law; Kirchhoff's laws; virtual learning environment.

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Albertin, Katia F., M. A. Valle e I. Pereyra. "Study Of MOS Capacitors With TiO2 And SiO2/TiO2 Gate Dielectric". Journal of Integrated Circuits and Systems 2, n.º 2 (18 de novembro de 2007): 89–93. http://dx.doi.org/10.29292/jics.v2i2.272.

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MOS capacitors with TiO2 and TiO2/SiO2 dielectric layer were fabricated and characterized. TiO2 films where physical characterized by Rutherford Backscattering, Fourier TransformInfrared Spectroscopy and Elipsometry measurements. Capacitance-voltage (1MHz) and current voltage measurements were utilized to obtain, the effective dielectric constant, effective oxide thickness (EOT), leakage current density and interface quality. The results show that the obtained TiO2 films present a dielectric constant of approximately 40, a good interface quality with silicon and a leakage current density, of 70 mA/cm2 for VG = 1V, acceptable for high performance logic circuits and low power circuits fabrication, indicating that this material is a viable substitute for current dielectric layers in order to prevent tunneling currents.

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Devadas, Srinivas, Kurt Keutzer, Sharad Malik e Albert Wang. "Verification of asynchronous interface circuits with bounded wire delays". Journal of VLSI signal processing systems for signal, image and video technology 7, n.º 1-2 (fevereiro de 1994): 161–82. http://dx.doi.org/10.1007/bf02108195.

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Williams, Chris, e Shideh Kabiri Ameri. "(Digital Presentation) Fully Integrated Strain-Neutralized 2D Transistors". ECS Meeting Abstracts MA2022-02, n.º 62 (9 de outubro de 2022): 2295. http://dx.doi.org/10.1149/ma2022-02622295mtgabs.

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As performant and well-established as conventional silicon-based electronics have become, the era of wearable electronics and the Internet-of-Things has created a demand for robust electronic devices that can conform to the surfaces of the human body. Whereas the mechanical mismatch between rigid silicon electronics and the human body represents a fundamental limit to conventional non-invasive health sensing, wearable electronics and electrodes that can conform to the microscopic features of the skin1,2 can circumvent most of the motion artifacts inherent to conventional, rigid sensing devices, and facilitate continuous health monitoring as is required for modern, more proactive healthcare. Unfortunately, without addressing this fundamental mechanical incompatibility, devices that leverage the high density of transistors available in rigid silicon-based integrated circuits are handicapped by how well they can maintain contact with the body, and consequently are prone to failure at the sensor-circuit interface. The extraordinary properties of two-dimensional materials pose a unique opportunity for addressing this mechanical mismatch. Their unusual mechanical strength combined with their ultimate thinness, optical transparency, and favorable electronic transport properties3 makes them ideal candidates for the next generation of highly conformable wearable electronics free of the constraints of a rigid silicon circuit board—however, minimizing local strain in the vicinity of the active devices to ensure reliable operation remains a priority. Using a design informed by finite element method (FEM) simulations, our proposed strain-neutralizing 2D transistors are configured to resist applied strains on the order of the 30% strains human skin can withstand by redistributing strain away from active regions. Tight binding simulations of the transistor channels helps with further compensation of residual strain in the active regions, alongside careful consideration of materials and device architecture during fabrication. Together, these considerations help realize the possibility of fully integrated strain-neutralized 2D transistors compatible with state-of-the-art conformable wearable sensors. [1]S. Kabiri Ameri et al., “Graphene electronic tattoo sensors,” ACS Nano, 11, 7634–7641, 2017. [2] S. Kabiri Ameri et al., “Imperceptible electrooculography graphene sensor system for human–robot interface”, npj 2D Materials and Applications, 2, 1-7, 2018. [3] A. H. Castro Neto, F. Guinea, N. M. R. Peres, K. S. Novoselov, and A. K. Geim, “The electronic properties of graphene,” Rev. Mod. Phys., vol. 81, no. 1, pp. 109–162, Jan. 2009, doi: 10.1103/RevModPhys.81.109.

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