Results 31 to 40 of about 625 (156)

A Common Ground Nine‐Level Switched Capacitor Inverter Having Quadruple Boosting Capability for Solar Photovoltaic Applications

open access: yesIET Power Electronics
The nine‐level switched capacitor multilevel inverter with common ground configuration presented in this work is meant specifically for grid‐tied solar photovoltaic (SPV) applications. Normally the SPV panels produce low‐level voltage.
Muneeb Afroz Bhat   +6 more
doaj   +1 more source

Microcontroller-based peak current mode control using digital slope compensation [PDF]

open access: yes, 2012
Microcontroller-based peak current mode control of a buck converter is investigated. The new solution uses a discrete time controller with digital slope compensation. This is implemented using only a single-chip microcontroller to achieve desirable cycle-
Hallworth, Michael, Shirsavar, Ali
core   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

open access: yesAdvanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane   +4 more
wiley   +1 more source

A novel nine‐level inverter, applicable in air plane ground power unit

open access: yesIET Power Electronics
In this study, a novel nine‐level inverter using one voltage source, 10 unidirectional and one bidirectional power switches, and two capacitors has been proposed to utilize in ground power units (GPUs).
Reza Ebrahimi, Hossein Madadi Kojabadi
doaj   +1 more source

Fabric‐Based Wearable Robotic Exoskeleton Gloves: Advancements and Challenges

open access: yesAdvanced Materials Technologies, EarlyView.
This review highlights interdisciplinary technological advances in fabric‐based robotic gloves, focusing on progress in design, fabrication, actuation, sensing, control, and power and energy requirements. It also addresses performance testing and validation, including biomechanical, strength, functional, user experience, and durability assessments, to ...
Ayse Feyza Yilmaz   +2 more
wiley   +1 more source

A VSM (virtual synchronous machine) convertor control model suitable for RMS studies for resolving system operator/owner challenges [PDF]

open access: yes, 2016
In recent years, it has become clear that reaching the targeted levels of renewable power generation poses problems, not only for basic infrastructure and generation/load balancing, but also in terms of fundamental network stability.
Booth, Campbell   +6 more
core  

Fully 3D‐Printed Wave‐Wound Electromagnetic Motors

open access: yesAdvanced Materials Technologies, EarlyView.
This work presents the first fully 3D‐printed wave‐wound electromagnetic motors, which are created using conductive nanoparticle inks, carbon‐filled nylon polymers, and surface mount components. These motors can achieve a stall torque of 7.62N·mmA−1$7.62 \nobreakspace N{\cdot }mm A^{-1}$ and efficiency of 28.2 %, which approaches the performance of ...
Joseph Schwalbe   +4 more
wiley   +1 more source

Stirling Convertor Controller Development at NASA Glenn Research Center [PDF]

open access: yes
For nearly two decades, NASA Glenn Research Center has been supporting the development of radioisotope power systems (RPS). NASA desires higher conversion efficiency RPS options that are reliable and robust with long-life design. Dynamic conversion, such
Dugala, Gina M.
core   +4 more sources

Novel clamping modulation for three‐phase buck‐boost ac choppers

open access: yesElectronics Letters
Three‐phase ac choppers feature output voltage amplitude controllability and enable more compact system realizations compared to autotransformers. For the practical realization advantageously standard power transistor with unipolar voltage blocking ...
David Menzi   +3 more
doaj   +1 more source

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