scispace - formally typeset
Search or ask a question

Answers from top 8 papers

More filters
Papers (8)Insight
In addition, the test achieves a 100% parametric fault coverage of the capacitor ratios defined by the SLB fault model for the Fleischer-Laker SC biquad.
It is shown herein that these defects in the windings of the capacitors have a wide range of electrical properties and the behavior of the capacitor in the test is strongly related to these properties.
This technique allows reliable prediction of capacitor life as compared to existing techniques.
This makes a low stress production test for end connection quality problematic since such tests can only show the total capacitor dissipation factor resulting from various factors.
Such indicator can, then, be used for the prediction of the capacitor degradation and its RUL.
The study results confirm the effectiveness of the proposed capacitor monitoring strategy.
This improved accuracy is necessary for correct characterization of capacitor matching.
This result indicates that the dielectric characteristics of the MOS capacitor are sensitive to gamma-ray dose.

See what other people are reading

What are the key factors affecting the performance of electrochemical energy storage systems?
5 answers
The performance of electrochemical energy storage systems is influenced by various factors. These include the intrinsic properties of materials, such as self-discharge, coulombic efficiency, and solid-electrolyte interface formation. Additionally, external service environments like extreme temperatures, stress, and radiation can significantly impact the performance of these systems. Electrode materials and electrolytes play a crucial role in determining the energy and power density of the systems. Moreover, the separator in electrochemical devices is essential for controlling features like power density and durability. Understanding these factors is vital for optimizing the performance of electrochemical energy storage systems to meet the increasing demand for efficient and sustainable energy solutions.
What are the technologies to detect high voltage without contact?
5 answers
Various technologies have been developed to detect high voltage without direct contact. One approach involves using a non-contact active DC high voltage detector that can measure and display voltages generated in capacitors, enabling the calculation of discharged electric charges. Another method focuses on non-contact diagnostics of high-voltage insulators, utilizing partial discharge detection through electromagnetic, acoustic, and electro-optical sensors for remote monitoring and diagnosis of insulator conditions. Additionally, a non-contact voltage detector based on microelectromechanical systems (MEMS) technology has been proposed, setting a detection threshold to effectively identify powered conductors from a distance, particularly useful for UHV transmission lines. These technologies offer safe and efficient ways to detect high voltage without the need for direct contact.
Internet Of Things (IoT) Using Physics in Electronic Application Energy Harvesting Techniques for IoT Devices?
5 answers
Energy harvesting techniques play a crucial role in powering Internet of Things (IoT) devices without relying on traditional batteries. Various methods such as mechanical energy harvesting (MEH), MEMS-based vibrating devices, and energy-harvesting devices (EHDs)are being explored. MEH converts local mechanical energy into electricity, ensuring self-sustainability for motion-powered IoT applications. MEMS-based devices utilize thermo, vibratory, and electromagnetic waves to harvest energy for IoT sensor networks. EHDs collect energy from the environment to power IoT systems, reducing maintenance costs and environmental impact. To optimize energy harvesting, integrated switch-capacitor DC-DC convertersand energy buffer-release mechanismsare employed to manage energy fluctuations and ensure continuous operation of IoT devices. These innovative approaches leverage physics in electronic applications to enhance the efficiency and sustainability of IoT systems.
How induction cooktops work?
5 answers
Induction cooktops operate by wirelessly transferring energy from the inductor to the pot. A hybrid wireless power transfer system combines induction heating with inductive power transfer to enhance performance. Real-time temperature control systems based on IR thermometry ensure precise temperature regulation for efficient cooking. An inductive power transfer system without compensation elements allows for wireless power transfer to small household appliances with high efficiency. Voltage source inverters with phase-locked loop control methods optimize power factor and resonance frequency for improved induction heater effectiveness. These technologies collectively enable induction cooktops to deliver efficient, precise, and wireless cooking capabilities for modern households.
How many volts would a AA battery size MFC produce?
5 answers
A AA size MFC utilizing LiCoO2 as the cathode material can produce voltages up to 0.324V when operated under specific conditions. However, it is crucial to note that the voltage production in MFCs can be enhanced by employing innovative techniques. For instance, a study demonstrated that MFC voltages can be increased to up to 2.5V by utilizing an electronic circuit with capacitors, allowing for continuous power production without substantial energy losses. Moreover, the size of the cathode electrode surface area plays a significant role in power generation, with larger cathodes showing potential for improved performance in scaling up MFCs. Therefore, while a standard AA size MFC may produce around 0.324V, advancements in design and operation can significantly impact the voltage output of microbial fuel cells.
How effective are mobile phone chargers that use electromagnetic energy in emergency situations?
5 answers
Mobile phone chargers utilizing electromagnetic energy offer innovative solutions for emergency situations. Various approaches have been proposed, such as systems capturing Wi-Fi, mobile telephony, and international mobile communications signals for energy conversion. Additionally, a hand strength practice charger integrates physical exercise with emergency charging capabilities. These methods aim to address the challenge of maintaining mobile phone functionality during emergencies, where traditional power sources may be unavailable. Furthermore, strategies for alternative mobile phone charging in disaster scenarios have been surveyed, emphasizing the importance of reliable charging solutions beyond mains electricity supply. Overall, these diverse approaches showcase the potential of electromagnetic energy-based chargers to provide essential power during critical situations, ensuring mobile devices remain operational when needed most.
How effective are mobile chargers that use electromagnetic energy in emergency situations?
5 answers
Mobile chargers utilizing electromagnetic energy can be effective in emergency situations. Various methods have been proposed, such as using remote charging stations with magnetic fields, capturing electromagnetic waves from the environment with flat antennas and Villard voltage multipliers, and charging mobile phones via air to avoid power bank usage. Additionally, a method involving charging between two mobile phones has been suggested, allowing an electrical phone to charge an electroless one for emergency use. Furthermore, a mobile emergency power supply device has been designed, featuring battery systems, charging devices, and communication management units for flexible and efficient emergency power provision. These approaches showcase the potential of electromagnetic energy-based mobile chargers in addressing urgent charging needs during emergencies.
What an capacitor is?
5 answers
A capacitor is an electronic device used to store electric charge by utilizing two conductors separated by an insulating material, known as a dielectric. This passive component can store energy similar to batteries and is crucial in various electronic and electrical systems. Capacitors have different types based on the materials and construction techniques used, each offering unique properties. The capacitance of a capacitor depends on the geometry of the electrodes and the dielectric constant of the material. By altering the dielectric material, the capacitance of a capacitor can be increased, allowing it to store and release charge quickly. Capacitors play a vital role in providing power in electronic devices and systems, making them essential components in modern technology.
What is the current state of ADC compensation research and what are the main unsolved problems?
4 answers
Current research in ADC compensation focuses on innovative techniques to address inherent challenges like capacitor mismatch and analog signal path errors. Techniques like Dynamic Element Matching (DEM)and backpropagation-based compensationhave shown promising results in improving ADC performance. However, challenges persist, such as the need for adaptive background compensation to mitigate errors caused by process variations in CMOS implementations, the impact of time-interleaved ADC (TI-ADC) mismatches on receiver performance, and the nonlinear distortion induced by TI-ADC structures in full-duplex transceivers. Unsolved problems include achieving high manufacturing yield in the presence of process variations, maintaining robustness and convergence speed in compensation techniques, and effectively mitigating ADC imperfections to ensure optimal system performance.
How does the drivers must be apply drive efficiently?
5 answers
To efficiently drive LEDs, drivers must be designed to maintain high power efficiency and control the LED current effectively. Implementing methods like maintaining LEDs near their turn-on point for optimal power consumption, utilizing a flyback converter in series with the dc-link for high circuit efficiency, and employing current modulation or double pulse-width modulation for dimming features can enhance overall driver performance. Incorporating floating driver circuits to control LED intensity through modulated input signals and bypassing LEDs partially or fully can further optimize LED operation. By combining these strategies, drivers can drive LEDs efficiently by minimizing power consumption, maximizing circuit efficiency, and providing precise control over LED current and brightness.
What is starter cell in this publication?
4 answers
In the publications provided, a starter cell is described in different contexts. In one instance, a starter cell is designed for plant growth, featuring openings for seeding and root passage, along with strategically placed ridges to guide root development and prevent twisting. Another mention of a starter cell refers to its role in a circuit, where it is part of a system that couples and decouples a power supply input to a supply capacitor based on the switching status of the circuit. Additionally, a different publication discusses a starter cell used in a fuel cell system, where part of the fuel is converted into hydrogen gas to enhance starting performance, especially at low temperatures. These varied applications highlight the diverse functionalities of starter cells in different fields.